UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

(Amendment No. 1)

(Mark One)

For the fiscal year ended December 31, 2025

or

For the transition period from to

Commission File Number: 001-39473

TUHURA BIOSCIENCES, INC.

(Exact name of registrant as specified in its charter)

10500 University Center Dr., Suite 110

Tampa, Florida 33612

(Address of principal executive offices and Zip Code)

(813) 875-6600

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to § 240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act) Yes ☐ No ☒

The aggregate market value of the common equity held by non-affiliates of the registrant, based on the closing price of the shares of common stock on The Nasdaq Stock Market (“Nasdaq”) on June 30, 2025 (the last business day of the registrant’s second fiscal quarter), was $111,000,000, based on the closing price on Nasdaq reported for such date. As of April 24, 2026 there were 63,682,528 shares of the registrant’s common stock outstanding.

EXPLANATORY NOTE

TuHURA Biosciences, Inc.

Form 10-K/A (Amendment No. 1)

For the Year Ended December 31, 2025

Table of Contents

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

You should read the following discussion and analysis of our financial condition and results of operations together with our audited consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K. Some of the information contained in this discussion and analysis, including information with respect to our plans and strategy for our business and related financing, includes forward-looking statements that involve risks and uncertainties. As a result of many factors, including those factors set forth under the heading “Risk Factors” in Part I, Item 1A of this Annual Report on Form 10-K our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis. See also “Forward-Looking Statements”.

In this section, we discuss our financial condition, changes in financial condition and results of our operations for the year ended December 31, 2025 compared to the year ended December 31, 2024. A discussion of our financial condition, changes in financial condition and results of our operations for the year ended December 31, 2024 compared to the year ended December 31, 2023 can be found under Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” in our Annual Report on Form 10-K for the year ended December 31, 2024 which was filed with the SEC on March 31, 2025 and is available on the SEC’s website at www.sec.gov as well as our website at ir.tuhurabio.com. References to “we”, “our” and “the Company” refers to Legacy TuHURA for periods prior to the closing of the Kintara Merger, and to TuHURA Biosciences, Inc. (formerly Kintara Therapeutics, Inc.) for all other periods, as the context requires.

Overview

We are a clinical stage immuno-oncology company developing novel technologies designed to overcome primary and acquired resistance to cancer immunotherapies. Our proprietary Immune FxTM technology platform, or IFx, is an innate immune agonist technology designed to “trick” the body’s immune system to attack tumor cells by making tumor cells look like bacteria. Our lead product candidate, IFx2.0, is an innate immune agonist designed to overcome primary resistance to checkpoint inhibitors. In June 2025, we initiated a single randomized placebo-controlled Phase 3 registration trial of IFx-2.0 administered as an adjunctive therapy to Keytruda® (pembrolizumab) in first line treatment for patients with advanced or metastatic Merkel cell carcinoma who are checkpoint inhibitor naïve utilizing the FDA’s accelerated approval pathway. In addition to our IFx technology platform, in June 2025 we acquired the rights to TBS-2025, a novel VISTA-inhibiting monoclonal antibody formerly known as KVA1213, through our acquisition of Kineta on June 30, 2025. VISTA (otherwise referred to as V-domain Ig suppressor of T cell activation) is an immune checkpoint highly expressed on myeloid cells that is believed to be a strong driver of immunosuppression in the tumor microenvironment and is believed to be a primary mechanism by which leukemic blasts escape immune recognition contributing to low relapse rates and high rates of recurrence in acute myeloid leukemia, or AML. Following our acquisition of Kineta, we are currently planning on investigating TBS-2025 in a randomized Phase 2 trial in combination with a menin inhibitor vs menin inhibitor alone in mutated NPM1 (mutNPM1) AML.

To date, we have devoted substantially all of our resources to organizing and staffing, business planning, raising capital, identifying and developing product candidates, enhancing our intellectual property portfolio, undertaking research, conducting preclinical studies and clinical trials, and securing manufacturing for our development programs. We do not have any products approved for sale and have not generated any revenue from product sales. We have funded our operations primarily through the issuance of capital stock, warrants and convertible notes.

We are not profitable and has incurred significant operating losses in each period since our inception, including net losses of $30.1 million for the year ended December 31, 2025, and $21.7 million for the year ended December 31, 2024. As of December 31, 2025, we had an accumulated deficit of $141.2 million. Our operating losses may fluctuate significantly from quarter-to-quarter and year-to-year as a result of several factors, including the timing of our preclinical studies and clinical trials and the expenditures related to other research and development activities. We expect to continue to incur operating losses. We anticipate these losses will increase substantially as it advances our product candidates through preclinical and clinical development, develops additional product candidates and seeks regulatory approvals for our product candidates. We do not expect to generate any revenues from product sales unless and until we successfully complete development and obtains regulatory approval for one or more product candidates. In addition, if we obtain marketing approval for any product candidate, we expect to incur pre-commercialization expenses and significant commercialization expenses related to marketing, sales, manufacturing and distribution. We may also incur expenses in connection with the in-licensing of additional product candidates.

As a result, we will need substantial additional funding to support our continuing operations and pursue our growth strategy. Until such time as we can generate significant revenue from sales of our product candidates, if ever, we expect to finance our cash needs through public or private equity offerings, debt financings, collaborations and licensing arrangements or other capital sources. However, we may be unable to raise additional funds or enter into such other arrangements when needed on favorable terms or at all. Our failure to raise capital or enter into such other arrangements as and when needed would have a negative impact on our financial

condition and could force it to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market our product candidates that we would otherwise prefer to develop and market itself.

Because of the numerous risks and uncertainties associated with pharmaceutical product development, we are unable to accurately predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are able to generate product sales, we may not become profitable. If we fail to become profitable or are unable to sustain profitability on a continuing basis, we may be unable to continue our operations at planned levels and be forced to reduce or terminate our operations.

As of December 31, 2025, we had cash and cash equivalents of $3.6 million. See “ — Liquidity and Capital Resources” below.

Recent Developments

ATM Offering

On November 3, 2025, the Company and H.C. Wainwright & Co., LLC (“Wainwright”) entered into an At-The-Market Offering Agreement (the “Offering Agreement”) with respect to an at-the-market offering program under which the Company may sell shares of its common stock having an aggregate offering price of up to $50,000,000 through Wainwright as its sales agent. As of the date of this Annual Report, we have not sold any shares of common stock through the program.

December 2025 Registered Direct Offering

On December 9, 2025, TuHURA Biosciences, Inc. (the “Company”) entered into a securities purchase agreement (the “Purchase Agreement”) with certain investors (collectively, the “Purchasers”). The Purchase Agreement relates to the sale and issuance in a registered direct offering (such sale and issuance, the “Offering”), by the Company of an aggregate of: (i) 9,462,423 shares of the Company’s common stock, (ii) Series A common stock purchase warrants to purchase up to 9,462,423 shares of common stock (the “Series A Warrants”), and (iii) Series B common stock purchase warrants to purchase up to 9,462,423 shares of common stock (the “Series B Warrants”, and together with the Series A Warrants, the “Common Warrants”).The offering price for each share of common stock and accompanying Series A Warrant and Series B Warrant was $1.65. Each Common Warrant has an exercise price of $1.95 per share and is exercisable beginning six months after the date of issuance.

On the same date, the Company and K&V Investment One LLC (“K&V”), a Purchaser in the Offering, entered into a side letter to the Purchase Agreement (the “Side Letter”), whereby the Company and K&V agreed that, for purposes of K&V’s funding requirements under the Purchase Agreement, K&V shall fund (i) with respect to $5 million of K&V’s subscription amount, at a date chosen by K&V that is no later than January 30, 2026 (the “Second Closing”), and (ii) with respect to $2 million of K&V’s subscription amount, at a date chosen by K&V that is no later than February 27, 2026 (the “Third Closing”). The Company will issue to K&V the shares of common stock and Warrants purchased at each of the Second Closing and Third Closing following receipt of consideration thereof, with such issued Warrants exercisable six months following the date of the Second Closing and the date of the Third Closing, respectively, and expiring on the same date as the Warrants issued to the other Purchasers on December 10, 2025, the first closing date (the “First Closing”).

Pursuant to the terms of the Purchase Agreement and the Side Letter, the closing of the Offering occurred in three tranches. At the First Closing, the Company issued an aggregate of 5,219,999 Shares, Series A Warrants to purchase up to an aggregate of 5,219,999 shares of common stock and Series B Warrants to purchase up to an aggregate of 5,219,999 shares of common stock. At the Second Closing, the Company issued to K&V an aggregate of 3,030,303 Shares, Series A Warrants to purchase up to an aggregate of 3,030,303 shares of common stock and Series B Warrants to purchase up to an aggregate of 3,030,303 shares of common stock. At the Third Closing, the Company issued to K&V an aggregate of 1,212,121 Shares, Series A Warrants to purchase up to an aggregate of 1,212,121 shares of common stock and Series B Warrants to purchase up to an aggregate of 1,212,121 shares of common stock. The Series A Warrants will expire five and one-half years from the date of the First Closing and the Series B warrants will expire twenty-four months from the date of the First Closing.

The Offering resulted in gross proceeds to the Company of approximately $8.6 million from the First Closing, approximately $5.0 million from the Second Closing and approximately $2.0 million from the Third Closing, before deducting the placement agents’ fees and other offering expenses payable by the Company.

June 2025 Private Placement

On June 2, 2025, the Company and certain accredited investors (the “Private Placement Purchasers”) entered into a securities purchase agreement (the “Securities Purchase Agreement”) pursuant to which the Company agreed to issue to the Private Placement Purchasers, in a private placement (the “Private Placement”), an aggregate of 4,759,309 shares of common stock together with warrants to purchase an equal number of shares of common stock at an exercise price of $3.3125 (the “Private Placement Warrants”), for an aggregate gross offering amount of approximately $12.6 million. The combined effective offering price for each share and accompanying Private Placement Warrant in the Private Placement was $2.65. The Private Placement Warrants have an exercise price per share equal to $3.3125 and will expire on December 31, 2030. The exercise price of the Private Placement Warrants is subject to proportional adjustment for stock splits, reverse stock splits, and similar transactions.

Pursuant to the Securities Purchase Agreement, each Private Placement Purchaser was obligated to purchase such Private Placement Purchaser’s respective investment in the Private Placement in four equal tranches, as follows:

In addition to the approximately $8.9 million that was purchased in four equal tranches pursuant to the foregoing milestones, the remaining $3.7 million in the Private Placement (the “Final Tranche Offering Amount”) was required to be purchased and funded by December 31, 2025 by certain Private Placement Purchasers who agreed to invest an aggregate of $4.0 million or more in the Private Placement and who elected to defer the purchase of a portion of such Private Placement Purchaser’s common stock and Private Placement Warrants until such time (the “Deferral Investors”).

On September 5, 2025, each of Deferral Investors and the Company entered into an agreement (the “Final Purchase Agreements”) pursuant to which they agreed to immediately purchase an aggregate of $3.2 million of the Final Tranche Offering Amount in exchange for the Company’s agreement, set forth in a Warrant Amendment Agreement between the Company and each Deferral Investor (the “Warrant Amendment Agreements”), to extend the expiration dates of certain warrants to purchase an aggregate of 1.5 million shares of Company common stock that were issued by the Company’s predecessor in a 2024 private placement of convertible notes (the “2024 Warrants”). An aggregate of $0.5 million remained outstanding in the Final Tranche Offering Amount and was purchased on December 31, 2025. Under the Warrant Amendment Agreements, the expiration dates of the 2024 Warrants was extended to December 31, 2030. The modification of the 2024 Warrants was related to the Private Placement and the incremental fair value relating to the modification has no net equity effect.

Merger with Kineta, Inc.

On June 30, 2025, the Company completed the previously announced acquisition contemplated by the Agreement and Plan of Merger, dated December 11, 2024, and as amended by that certain First Amendment to Agreement and Plan of Merger, dated May 5, 2025 (as amended, the “TuHURA-Kineta Merger Agreement”), by and among the Company, Hura Merger Sub I, Inc., a Delaware corporation and a direct wholly-owned subsidiary of the Company (“Merger Sub I”), Hura Merger Sub II, LLC, a Delaware limited liability company and direct wholly-owned subsidiary of the Company (“Merger Sub II”), Kineta, and Craig Philips, solely in his capacity the representative, agent and attorney-in-fact of the stockholders of Kineta. Pursuant to the terms of the TuHURA-Kineta Merger Agreement, among other things, Merger Sub I (a) merged with and into Kineta (the “First Merger”), with Kineta being the surviving corporation of the First Merger, also known as the “Surviving Entity” and (b) immediately following the First Merger, the Surviving Entity merged with and into Merger Sub II (the “Second Merger”, and together with the First Merger, the “Kineta Merger”), with Merger Sub II being the surviving company of the Second Merger and subsequently changing its name to Kineta, LLC.

Upon completion of the Kineta Merger, pursuant to the terms and conditions of the TuHURA-Kineta Merger Agreement, each share of Kineta common stock, par value $0.001 per share (each, a “Kineta Share”), issued and outstanding immediately prior to the First Merger, was converted into the right to receive 0.185298 shares of the Company’s common stock for an aggregate of approximately 2.9 million shares of Company common stock. Also pursuant to the terms and conditions of the TuHURA-Kineta

Merger Agreement, each Kineta Share received its pro rata portion of approximately 1.1 million shares of Company common stock in December 2025, in accordance with the terms of the TuHURA-Kineta Merger Agreement. In addition, each Kineta Share is entitled to the right to its pro rata share of cash consideration received by Kineta pursuant to disposed asset payments related to legacy Kineta assets. Such payments, if any, will be made at a later date and in accordance with the terms of the TuHURA-Kineta Merger Agreement. In each case, in lieu of the issuance of any fractional shares of Company common stock, we will pay an amount equal to the product of (A) such fractional share and (B) $5.7528. As of the date of this Annual Report, all 1.1 million shares of common stock were issued to the Kineta shareholders and no cash consideration has been received.

Merger with Kintara Therapeutics

On October 18, 2024, we completed the transactions contemplated by the Kintara Merger Agreement. Pursuant to the Kintara Merger Agreement, Merger Sub merged with and into Legacy TuHURA with Legacy TuHURA surviving the merger and becoming Kintara’s direct, wholly-owned subsidiary. In connection with the completion of the Kintara Merger, effective at 12:01 a.m. Eastern Time on October 18, 2024, Kintara effected a 1-for-35 reverse stock split of its common stock (the “Reverse Stock Split”). Effective at 12:03 a.m. Eastern Time on October 18, 2024, the Kintara Merger was completed, and effective at 12:04 a.m. Eastern Time on October 18, 2024, Kintara changed its name to “TuHURA Biosciences, Inc.”

The Kintara Merger is being accounted for as a reverse recapitalization in accordance with U.S. GAAP, with Kintara treated as the acquired company for financial reporting purposes and TuHURA treated as the accounting acquirer. The Kintara Merger is intended to qualify for U.S. federal income tax purposes as a tax-free reorganization under the provisions of Section 368(a) of the Code.

Subject to the terms and conditions of the Kintara Merger Agreement, at the closing of the Kintara Merger, (a) each then-outstanding share of Legacy TuHURA common stock (other than shares held in treasury and excluding dissenting shares), including shares of Legacy TuHURA common stock issued upon conversion of Legacy TuHURA preferred stock and conversion of all of our convertible promissory notes issued in the Legacy TuHURA’s note financing, were converted into the right to receive a number of shares of Kintara common stock (after giving effect to the Reverse Stock Split) based on an exchange ratio of 0.1789 shares of Kintara common stock for each outstanding share of Legacy TuHURA common stock per the Kintara Merger Agreement (the “Exchange Ratio”), and (b) each then-outstanding Legacy TuHURA stock option and warrant that was not exercised immediately prior to the effective time of the Kintara Merger was assumed by Kintara with the number of underlying shares and exercise price being adjusted in accordance with the Exchange Ratio.

Also at the closing of the Kintara Merger, Kintara entered into a Contingent Value Rights Agreement with the Rights Agent (as defined in the Kintara Merger Agreement), pursuant to which holders of Kintara common stock and Kintara common stock warrants, in each case, as of the close of business on the business day immediately prior to the effective time of the Kintara Merger, received one contingent value right (a “CVR”) for each outstanding share of Kintara held by such stockholder (or, in the case of the warrants, each share of Kintara common stock for which such warrant is exercisable). Following the achievement of certain prescribed milestones, each CVR received in December 2025 its pro rata portion of 1.5 million shares of TuHURA common stock.

Components of Our Results of Operations

Revenue

We did not generate any revenue and do not expect to generate any revenue from the sale of products in the near future.

Research and Development Expenses

To date, our research and development expenses have related primarily to the development of IFx-2.0, IFx-3.0 (which we are no longer advancing), TBS-2025, manufacturing, clinical studies, and other early pre-clinical activities related to our portfolio. Research and development expenses are recognized as incurred, and payments made prior to the receipt of goods or services to be used in research and development are capitalized until the goods or services are received.

Research and development expenses include:

Clinical trial costs are a significant component of research and development expenses and include costs associated with third-party contractors. We outsource a substantial portion of our clinical trial activities, utilizing external entities such as CROs, independent clinical investigators and other third-party service providers to assist us with the execution of our clinical trials.

We plan to substantially increase our research and development expenses for the foreseeable future as we continue the development of our product candidates and seek to discover and develop new product candidates.

Due to the inherently unpredictable nature of preclinical and clinical development, we cannot determine with certainty the timing of the initiation, duration or costs of future clinical trials and preclinical studies of product candidates. Clinical and preclinical development timelines, the probability of success and the amount of development costs can differ materially from expectations. We anticipate that we will make determinations as to which product candidates and development programs to pursue and how much funding to direct to each product candidate or program on an ongoing basis in response to the results of ongoing and future preclinical studies and clinical trials, regulatory developments and our ongoing assessments as to each product candidate’s commercial potential. In addition, we cannot forecast which product candidates may be subject to future collaborations, when such arrangements will be secured, if at all, and to what degree such arrangements would affect our development plans and capital requirements.

Our future clinical development costs may vary significantly based on factors such as:

Acquisition-related costs

Acquisition-related costs consist of expenses incurred to effect a business combination, including legal, advisory, accounting, and valuation fees and were expensed as incurred.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and employee-related costs, including stock-based compensation, for personnel in our executive, finance, and other administrative functions. Other significant costs include facility related costs, legal fees relating to intellectual property and corporate matters, professional fees for accounting and consulting services and insurance costs. We anticipate that our general and administrative expenses will increase in the future to support our continued research and development activities, and, if any product candidates receive marketing approval, commercialization activities.

Other (Expense) Income

Other expense income (expense) consists of grant income from a NIH-funded research grant from Legacy Kintara REM-001, employee retention tax credit for companies affected by the COVID-19 pandemic, loss on settlements related to Kineta former employees separation payments, interest income on our cash and cash equivalents, interest expense on borrowings under our convertible note agreements and 2025 bridge loan, and non-cash changes in the fair value of our derivative liability associated with the make-whole premium on our convertible notes and holdback shares on the Kineta Merger.

Preferred Series A Cash Dividend

Preferred Series A cash dividend represents a cash dividend payable to Valent Technologies, LLC, the holder of our Series A Preferred Stock. Effective September 30, 2014, Kintara filed a Certificate of Designation of Series A Preferred Stock with the Secretary of State of Nevada, pursuant to which, Kintara designated and thereafter issued 278,530 shares of preferred stock as Series A Preferred Stock. The shares of Series A Preferred Stock have a state value of $1.00 per share (the “Series A Stated Value”) and are not convertible into shares of our common stock. The holder of the Series A Preferred Stock is entitled to dividends at the rate of 3% of the Series A Stated Value, payable quarterly in arrears. The dividend has been recorded as a direct increase in accumulated deficit.

Warrant Modification

Warrant modification represents an extension of the exercise period of common stock purchase warrants issued in connection with Legacy TuHURA Series A Preferred Stock for an additional six months, with a new expiry date of February 12, 2025. The warrant modification has been recorded as a direct increase in accumulated deficit.

Results of Operations

Comparisons for the Years Ended December 31, 2025, and December 31, 2024

Research and Development Expenses. The following table summarizes our research and development expenses by program for the periods presented.

Research and development expenses were $20.5 million and $13.3 million for the years ended December 31, 2025, and 2024, respectively. The increase of $7.2 million related to the following.

Acquisition-related costs. Acquisition related costs were $3.7 million and $0.4 million for the years ended December 31, 2025, and 2024, respectively, and represent costs incurred in relation to the Kineta Merger.

General and Administrative Expenses. General and administrative expenses were $7.6 million and $3.9 million for the years ended December 31, 2025, and 2024, respectively. The increase of $3.7 million was primarily due to increases in non-cash stock compensation expense, and costs associated with being a public company.

Employee Retention Tax Credit. The IRS provided a refundable tax credit for businesses that had employees that were affected during the COVID-19 pandemic. In October 2022, we applied for a credit under this program and we received a credit $0.1 million in 2025.

Grant Income. Grant income was $0.7 million and less than $0.1 million for the years ended December 31, 2025 and 2024, respectively. In October 2024, we assumed the Kintara Health and Human Services grant on REM-001 and received reimbursements for related expenses associated with the grant.

Interest Expense. From December 2023 to September 2024, as part of our private placement financing under which we offered and sold convertible promissory note (the “TuHURA Notes”), we issued convertible notes totaling $31,253,000. The convertible notes included interest at 20% per annum, accretion to maturity date, and amortization of debt discount. Upon the completion of the Kintara Merger, all principal and accrued and unpaid interest and make-whole amounts under the TuHURA Notes automatically converted into shares of our common stock at a conversion price $3.80 per share of our common stock. There was no cash paid for interest in the TuHURA Notes. In October 2024, we entered into a loan agreement with an accredited investor and shareholder for an aggregate principal amount of $3,000,000 incurring interest at 3%, lender warrants, and a loan fee of $180,000.

Interest Income. For the years ended December 31, 2025 and 2024, respectively, interest income was earned on deposits at various banks.

Change in Fair Value of Derivative Liability. For the year ended December 31, 2024, there was a loss of $0.3 million associated with the bifurcated embedded derivative liability related to the make-whole premium on the TuHURA Notes.

Change in Fair Value of Kineta Merger Holdback Shares. For the year ended December 31, 2025, there was a gain of $1.6 million associated with the Kineta Merger holdback shares due to a decrease in the share price in comparison to the date of the closing of the Kineta Merger.

Loss on Kineta Employee Separation Payments. In August 2025 we issued shares to former Kineta employees for separation payments assumed in the Kineta Merger resulting in a loss on settlement of $0.2 million.

Series A Preferred Cash Dividend – The holder of our the Series A Preferred Stock received dividends payable quarterly in arrears, at an annual rate of 3% of the Series A Stated Value.

Deemed Dividend on Warrant Modifications – For the year ended December 31, 2024, there was a $1.0 million deemed dividend due to extending the exercise period on certain of our warrants for an additional six months.

Liquidity and Capital Resources

We have incurred net losses and negative cash flows from operations since our inception and we anticipate that we will continue to incur net losses for the foreseeable future. We incurred net losses of $30.1 million and $21.7 million for the years ended December 31, 2025 and 2024, respectively, and used $27.6 million and $14.7 million of cash from our operating activities for the years ended December 31, 2025, and 2024, respectively. As of December 31, 2025, we had an accumulated deficit of $141.2 million.

As of December 31, 2025, we had cash and cash equivalents of $3.6 million.

Sources of Liquidity

To date, we have financed our operations principally through the issuance of our capital stock, warrants and debt instruments. Since inception, Legacy TuHURA and the Company have raised approximately $99.7 million in net proceeds through the issuance and sale of capital stock, warrants and debt instruments

Warrant Exercise Notes

On February 12, 2025, four holders (the “Makers”) of common stock purchase warrants of the Company made and issued to the Company secured promissory notes (the “Warrant Exercise Notes”) in the aggregate principal amount of $3,011,373 as payment of the exercise price of an aggregate of 1,034,836 Warrants held by the Makers. The Makers were comprised of KP Biotech Group, LLC, CA Patel F&F Investments, LLC, Dr. Kiran C. Patel and Donald Wojnowski. Upon the exercise of such warrants, the Company issued to the Makers an aggregate of 1,034,836 shares of common stock. The amounts due under the Warrant Exercise Notes were collected in full in the second quarter of 2025.

Securities Purchase Agreement

On June 2, 2025, the Company and the Private Placement Purchasers entered into the Securities Purchase Agreement pursuant to which the Company agreed to issue and sell to the Private Placement Purchasers, in a private placement, an aggregate of 4,759,309 shares of the Company’s common stock, together with the Private Placement Warrants, for an aggregate offering amount of $12.6 million. The combined effective offering price for each share and accompanying Private Placement Warrant in the Private Placement was $2.65.

On December 9, 2025, the Company entered into the Purchase Agreement with the “Purchasers. The Purchase Agreement relates to the sale and issuance in a registered direct offering by the Company of an aggregate of: (i) 9,462,423 shares of the Company’s common stock, (ii) Series A Warrants to purchase up to 9,462,423 shares of common stock, and (iii) Series B Warrants to purchase up to 9,462,423 shares of common stock. The offering price for each share of common stock and accompanying Series A Warrant and Series B Warrant was $1.65. Each Common Warrant has an exercise price of $1.95 per share and is exercisable beginning six months after the date of issuance.

Cash Flows

The following table sets forth a summary of the net cash flow activity for the years ended December 31, 2025 and 2024, respectively:

Operating Activities

For the year ended December 31, 2025, net cash used in operating activities was $27.6 million, which primarily consisted of a net loss of $30.1 million, a change in net operating assets and liabilities of $3.1 million, and net non-cash charges of $5.6 million. The net non-cash charges were primarily related to a $1.6 million change in fair value of holdback shares, amortization of debt discount of $0.5 million, depreciation and amortization expense of $0.1 million, and stock-based compensation of $6.4 million. The $3.1 million net change in operating assets and liabilities is primarily due to decreases in accounts payable and accrued expenses of approximately $3.8 million due to timing of invoices and vendor payments, and an increase in current and non-current assets of approximately $0.6 million.

For the year ended December 31, 2024, net cash used in operating activities was $14.7 million, which primarily consisted of a net loss of $21.7 million, a change in net operating assets and liabilities of $3.3 million, and net non-cash charges of $3.7 million. The net non-cash charges were primarily related to a $0.3 million change in fair value of derivative liability, amortization of debt discount of $1.3 million, depreciation and amortization expense of $0.1 million, and stock-based compensation of $2.0 million. The $3.3 million net change in operating assets and liabilities is primarily due to increases in accounts payable and accrued expenses of approximately $3.6 million due to timing of invoices and vendor payments, and a decrease in current and non-current assets of approximately $0.3 million.

Investing Activities

For the year ended December 31, 2025, net cash used in investing activities was $1.3 million, which consisted of purchases of property and equipment and deposits and exclusivity payments in connection with the Kineta Merger.

For the year ended December 31, 2024, net cash used in investing activities was $6.1 million, which consisted of purchases of property and equipment and deposits and exclusivity payments in connection with the Kineta Merger.

Financing Activities

For the year ended December 31, 2025, net cash provided by financing activities was $19.9 million, which consisted of $18.3 million net proceeds from the Private Placement in June 2025 and the Registered Direct Offering in December 2025, $3.0 million gross proceeds from the TuHURA bridge loan financing, and $3.6 million proceeds from the Legacy TuHURA warrants exercises, offset by $1.6 million payment of offering costs attributable to the June 2025 Private Placement and December 2025 Registered Direct Offering, $1.1 million payment in merger transaction costs and net liabilities attributable to Kintara, $1.5 million payment of the TuHURA bridge loan financing, $0.4 million payment of notes payable to former Kineta employees for separation payments assumed from the merger, and $0.4 million payment of Kineta debt assumed from the Kineta Merger.

For the year ended December 31, 2024, net cash provided by financing activities was $29.8 million, which consisted of $27.5 million net proceeds from convertible notes issued as part of the TuHURA Note Financing, $4.7 million net proceeds from the Legacy TuHURA private placement in July 2024, and $2.0 million proceeds from stock options and warrants exercises, offset by $4.4 million payment in merger transaction costs and net liabilities attributable to Kintara.

Funding Requirements

We expect to incur costs associated with operating as a public company. In addition, we anticipate that we will need substantial additional funding in connection with our development programs and continuing operations. We believe that our existing cash and cash equivalents, together with the ATM and the proceeds received in the Offering, will be sufficient to meet our anticipated cash requirements through the second quarter and into the third quarter of 2026.

Our forecast of the period through which our financial resources will be adequate to support our operations is a forward-looking statement that involves risks and uncertainties, and actual results could vary materially. Management based projections of operating capital requirements on our current operating plan, which includes several assumptions that may prove to be incorrect, and we may deplete our available capital resources sooner than management expects. Our future capital requirements will depend on many factors, including:

Until such time, if ever, as we can generate substantial product revenues to support our capital requirements, we expect to finance our cash needs through a combination of public or private equity offerings, debt financings, collaborations and licensing arrangements or other capital sources. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our stockholders will be or could be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of holders of our common stock. Debt financing and equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, or declaring dividends. If we raise funds through collaborations, or other similar arrangements with third parties, we may need to relinquish valuable rights to our product candidates, future revenue streams or research programs or may have to grant licenses on terms that may not be favorable to us and/or may reduce the value of our common stock. If we are unable to raise additional funds through equity or debt financings as and when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market our product candidates even if we would otherwise prefer to develop and market such product candidates ourselves.

Critical Accounting Policies and Significant Judgments and Estimates

Our management’s discussion and analysis of our financial condition and results of operations is based on our financial statements, which have been prepared in accordance with U.S. GAAP. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities in our financial statements. On an ongoing basis, we evaluate our estimates and judgments, including those related to accrued expenses and stock-based compensation. We base our estimates on historical experience, known trends and events, and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Our actual results may differ from these estimates under different assumptions or conditions. While our significant accounting policies are described in more detail in Note 2 of our consolidated financial statements for the year ended December 31, 2025, contained in Item 8 in this Annual Report, we believe the following accounting policies and estimates to be most critical to the preparation of our financial statements.

Stock-Based Compensation Expense

Stock-based compensation expense represents the cost of the grant date fair value of equity awards recognized over the requisite service period of the awards (usually the vesting period) on a straight-line basis. we estimate the fair value of equity awards using the Black-Scholes option pricing model and recognizes forfeitures as they occur. Estimating the fair value of equity awards as of the grant date using valuation models, such as the Black-Scholes option pricing model, is affected by assumptions regarding a number of variables, including the risk-free interest rate, the expected stock price volatility, the expected term of stock options, the expected dividend yield and the fair value of the underlying common stock on the date of grant. Changes in the assumptions can materially

affect the fair value and ultimately how much stock-based compensation expense is recognized. These inputs are subjective and generally require significant analysis and judgment to develop. See Note 2 of our financial statements for information concerning certain of the specific assumptions we use in applying the Black-Scholes option pricing model to determine the estimated fair value of our stock options granted.

Kineta Acquisition and Valuation of Intangible Assets

On June 30, 2025 we completed the Kineta Merger contemplated by the TuHURA-Kineta Merger Agreement, pursuant to which the Company acquired Kineta in a cash and stock transaction through a series of merger transactions, with Kineta surviving the mergers as a wholly-owned subsidiary of ours.

Upon completion of the Kineta Merger, pursuant to the terms and conditions of the TuHURA-Kineta Merger Agreement, each Kineta Share issued and outstanding immediately prior to the First Merger, was converted into the right to receive 0.185298 shares of our common stock for an aggregate of approximately 2.9 million shares of our common stock. Also pursuant to the terms and conditions of the TuHURA-Kineta Merger Agreement, each Kineta Share received its pro rata portion of approximately 1.1 million shares of our common stock in December 2025, in accordance with the terms of the TuHURA-Kineta Merger Agreement. In addition, each Kineta Share is entitled to the right to its pro rata share of cash consideration received by Kineta pursuant to disposed asset payments related to legacy Kineta assets. Such payments, if any, will be made at a later date and in accordance with the terms of the TuHURA-Kineta Merger Agreement. In each case, in lieu of the issuance of any fractional shares of our common stock, we will pay an amount equal to the product of (A) such fractional share and (B) $5.7528.

The estimated fair value of the aggregate share component of the Kineta Merger was calculated using the closing stock price on the date of the Kineta Merger.

We recognized in-process research and development (“IPR&D”) in connection with the acquisition. The preliminary fair value of the acquired IPR&D intangible assets was determined based on the market capitalization of Kineta, as previously traded on the Nasdaq capital market.

Goodwill and other intangible assets comprised of IPR&D on our balance sheet as of December 31, 2025 were in connection with the Kineta Merger.

In a business combination, the fair value of acquired IPR&D is capitalized and accounted for as indefinite-lived intangible assets, and not amortized until the underlying project receives regulatory approval, at which point the intangible assets will be accounted for as definite-lived intangible assets or discontinued. If discontinued, the intangible assets will be written off. R&D costs incurred after the acquisition are expensed as incurred.

We will engage a third-party valuation firm to assist us with the valuation of the IPR&D. The valuation of our acquired IPR&D has significant measurement uncertainty given the lack of historical data on which to base assumptions. Assumptions are difficult to make accurately and were mainly derived from life science studies, industry data, and peer company information that our management believes represent appropriate comparable data.

We test indefinite-lived intangible assets for impairment by first assessing qualitative factors to determine whether it is more likely than not that the fair value is less than its carrying amount. If we conclude it is more likely than not that the fair value is less than its carrying amount, a quantitative impairment test is performed.

Recently Issued and Adopted Accounting Pronouncements

A description of recently issued and adopted accounting pronouncements that may potentially impact our financial position and results of operations is disclosed in Note 2 to our financial statements.

Off-Balance Sheet Arrangements

During the periods presented, we do not have, nor do we currently have, any off-balance sheet arrangements as defined under SEC rules.

Part III

Item 10. Directors, Executive Officers and Corporate Governance.

Executive Officers and Directors

The following table sets forth the persons who serve as our executive officers and directors, and their ages as of April 30, 2026:

Executive Officers

James Bianco, M.D. has served as our Chief Executive Officer and as a director since the completion of our reverse merger transaction with Kintara Therapeutics, Inc. completed in October 2024 (the “Kintara Merger”), and for TuHURA Biosciences, Inc., a Delaware corporation and wholly owned subsidiary of the Company (“Legacy TuHURA”), since July 1, 2021. Dr. Bianco was also the founder, Chief Executive Officer and Chairman of Morphogenesis Biopharma, Inc., a biotechnology company, from its inception in November 2018 through its dissolution in January 2023, following the transfer of its assets to us. Dr. Bianco is a 30-year veteran of the biopharmaceutical industry. In 1991, Dr. Bianco founded CTI Biopharma, Inc. (“CTI”) and from 1992 to 2016 was the Chief Executive Officer of CTI. During his tenure at CTI, Dr. Bianco was responsible for strategic portfolio development and identifying, acquiring, licensing, purchasing, or acquiring through international merger and acquisition, five drug candidates, four of which have since been approved by the FDA and with three receiving accelerated or conditional regulatory approval in the U.S. and/or E.U.

Dr. Bianco earned his M.D. from the Mount Sinai Icahn School of Medicine and completed his residency and chief residency at the Mount Sinai Medical Center in New York City. He completed his fellowship in Hematology/Oncology at the University of Washington/Fred Hutchinson Cancer Research Center (FHCRC) where he was appointed Assistant Professor of Medicine, Assistant Member FHCRC and Director of the Bone Marrow Transplant Unit at a “Hutch” affiliate (SVAMC).

Dan Dearborn joined Legacy TuHURA in 2018 as its Chief Financial Officer and has served in this role for our company since the completion of the Kintara Merger. Mr. Dearborn is a CPA with over 25 years of finance experience exclusively with health care and biotechnology companies. Prior to joining our company, from 2015 to 2017, Mr. Dearborn was Chief Financial Officer at MYMD Pharmaceuticals, Inc., an emerging biotechnology firm. Mr. Dearborn is an alumnus of Loyola University in Maryland and joined Ernst & Young early in his career. He was with Pharmerica, a long-term care pharmaceutical company, for fifteen years and advanced quickly to a Director role. He then moved to BioDelivery Sciences International as Controller. During his time at BioDelivery Sciences International, the company signed two very large commercial partnership agreements and was listed on Nasdaq. Mr. Dearborn later joined Welldyne, Inc. (“Welldyne”) as its Chief Financial Officer. Welldyne is a pharmacy benefit manager that also had several related health care businesses and employed associates in Florida and Colorado. During his time with Welldyne, the company was sold to Carlyle Group, Inc., one of the largest private equity firms in the world.

Non-Employee Directors

James S. Manuso, Ph.D., MBA, has served as a director of Legacy TuHURA since November 2022 and as our director and Chairman since the completion of the Kintara Merger. Dr. Manuso has also served as Chairman and Chief Executive Officer of Talfinium Investments, Inc., an investment entity and financial consultancy, since 2014. Since 2018, Dr. Manuso has served as managing member of Laurelside LLC, a family office, which he founded. Dr. Manuso has served on the board of Ocuphire Pharma, Inc., a public company (NASDAQ:OCUP) developing Nyxol in advanced clinical trials for the treatment of multiple visual disorders, since November 2020. From 2015 until 2018, Dr. Manuso served as President, Chief Executive Officer and Vice Chairman of RespireRx Pharmaceuticals Inc. (OTC QB:RSPI), a Phase 3-ready, clinical-stage respiratory and neurological pharmaceutical company. From July 2011 until October 2013, Dr. Manuso served as Chairman and Chief Executive Officer of Astex Pharmaceuticals,

Inc. (Nasdaq:ASTX) and led the sale of Astex Pharmaceuticals, Inc. to Otsuka Pharmaceutical Co., Ltd. (“Otsuka Pharmaceutical”). In 2013, he was a senior mergers and acquisitions advisor to Otsuka Pharmaceuticals’ executive management. Dr. Manuso has served as board chairman and chairman of the audit, governance and nominating, pricing and compensation committees of multiple companies’ boards, including Biotechnology Industry Organization; Novelos Therapeutics, Inc.; Merrion Pharmaceuticals Ltd. (MERR:IEX; Dublin, Ireland); Inflazyme Pharmaceuticals, Inc. (IZP-TSE; Vancouver, Canada); Symbiontics, Inc., which he co-founded (sold to BioMarin Pharmaceutical Inc. as ZyStor, Inc.); Montigen Pharmaceuticals, Inc.; Quark Pharmaceuticals, Inc.; Galenica Pharmaceuticals, Inc.; Supratek Pharma, Inc.; EuroGen, Ltd. (London, UK), where he was chairman; and the Greater San Francisco Bay Area Leukemia & Lymphoma Society, where he also served as vice president.

Dr. Manuso holds a B.A. with honors in Economics and Chemistry from New York University, a Ph.D. in Experimental Psychology and Genetics from the New School University, and an Executive M.B.A. from Columbia Business School. Dr. Manuso is the author of numerous chapters, articles and books on topics including health care cost containment and biotechnology company management.

George Ng has served as a director of Legacy TuHURA since February 2020 and as a director of our company since the completion of the Kintara Merger. Mr. Ng has also served as a director of Calidi Biotherapeutics, Inc. (NYSE American: CLDI) since October 2019 and as its President and Chief Operating Officer since February 1, 2022, as well as a director and Chief Executive Officer of Processa Pharmaceuticals, Inc. (Nasdaq: PCSA) since August 8, 2023. In addition, Mr. Ng is currently a partner at PENG Life Science Ventures since September 2013, a director, co-founder, and chief business officer at IACTA Pharmaceuticals, Inc. since January 2020. Mr. Ng’s experience further includes serving in various executive-level positions for multiple publicly-traded and private global biotechnology and pharmaceutical firms. Mr. Ng previously served as a director of Inflammatory Response Research, Inc. from May 2019 to April 2020, as a director of Invent Medical Corp from July 2019 to January 2020, as a director of ImmuneOncia Therapeutics Inc. from June 2016 to 2019, and as a director of Virttu Biologics Limited from April 2017 to April 2019. Mr. Ng was also the Executive Vice President and Chief Administrative Officer of Sorrento Therapeutics, Inc. (Nasdaq: SRNE) from March 2015 to April 2019, the Co-Founder and President, Business of Scilex Pharmaceuticals Inc. from September 2012 to April 2019, and the Senior Vice President and General Counsel of BioDelivery Sciences International Inc. (Nasdaq: BDSI) from December 2012 to March 2015. Mr. Ng holds a JD degree from the University of Notre Dame School of Law, as well as a B.AS double degree in Biochemistry and Economics from the University of California, Davis.

Alan List, M.D. has served as a director of Legacy TuHURA since November 2022 and as director of our company since the completion of the Kintara Merger. Dr. List has also served as Chief Medical Officer of Precision BioSciences, Inc. (Nasdaq: DTIL) (“Precision BioSciences”), a clinical stage gene editing company, since April 2021 and, prior to that, had been a strategic clinical advisor to Precision BioSciences and its board since April 2020, providing advice regarding its clinical stage and pre-clinical allogeneic CAR T programs. Prior to joining Precision BioSciences, Dr. List served in various roles at the Moffitt Cancer Center, including as President and Chief Executive Officer from 2012 to December 2019, Executive Vice President, Physician in Chief from 2008 to 2012 and Chief of the Malignant Hematology Division from 2003 to 2008. Prior to joining the Moffitt Cancer Center, Dr. List held academic and clinical appointments at the University of Arizona. Dr. List is internationally recognized for his many contributions in the development of effective treatment strategies for myelodysplastic syndrome (“MDS”) and acute myeloid leukemia. His pioneering work led to the development of Revlimid (lenalidomide), a transformational treatment for patients with MDS and multiple myeloma. Dr. List is the author of numerous peer-reviewed articles and books. He previously served as the President for the Society of Hematologic Oncology as well as a member of the MDS Foundation Board of Directors. Dr. List is also an active member of the American Society of Clinical Oncology, the American Society of Hematology and the American Association for Cancer Research. He is a Charter Fellow in the National Academy of Inventors, an inductee in the Florida Inventors Hall of Fame. Dr. List received B.S. and M.S. degrees from Bucknell University and earned his M.D. from the University of Pennsylvania. He is board certified in internal medicine, hematology, and medical oncology.

Robert E. Hoffman served as a director of Kintara from April 2018 through the completion of the Kintara Merger, as Chairman of Kintara from June 2018 through the completion of the Kintara Merger, as Chief Executive Officer and President of Kintara from November 2021 through the completion of the Kintara Merger, and as interim Chief Financial Officer of Kintara from June 1, 2023, through the completion of the Kintara Merger. Mr. Hoffman was appointed to our board in connection with the completion of the Kintara Merger. He has served as a member of board of directors of ASLAN Pharmaceuticals, Inc. (Nasdaq: ASLN), a publicly-held, clinical-stage immunology focused biopharmaceutical company, since October 2018, and as a member of the board of directors of FibroGenesis, a clinical-stage regenerative medicine company, since April 2021. He has also served as a member of board of directors, on the audit committee, and on the human resources and compensation committee of Antibe Therapeutics Inc. (“Antibe”), a publicly-held clinical-stage biotechnology company, since November 2020, and as Chairman of Antibe’s board of directors from May 2022 to April 2024. Mr. Hoffman served as Senior Vice President and Chief Financial Officer of Heron Therapeutics, Inc., a publicly-held pharmaceutical company, from April 2017 to October 2020. From July 2015 to September 2016, Mr. Hoffman served as Chief Financial Officer of AnaptysBio, Inc., a publicly-held biotechnology company. From June 2012 to July 2015, Mr. Hoffman served as the Senior Vice President, Finance and Chief Financial Officer of Arena Pharmaceuticals, Inc.

(“Arena”), a biopharmaceutical company, prior to its acquisition by Pfizer Inc. in March 2022. From August 2011 to June 2012 and previously from December 2005 to March 2011, he served as Arena’s Vice President, Finance and Chief Financial Officer and in a number of various roles of increasing responsibility from 1997 to December 2005. Mr. Hoffman formerly served as a member of the board of directors of Saniona AB, a biopharmaceutical company, from September 2021 to May 2022, and as a member of the board of directors of Kura Oncology, Inc., a cancer research company, from March 2015 to August 2021. He also previously served as a member of the board of directors of CombiMatrix Corporation, a molecular diagnostics company, MabVax Therapeutics Holdings, Inc., a biopharmaceutical company, and Aravive, Inc., a clinical stage biotechnology company. Mr. Hoffman serves as a member of the steering committee of the Association of Bioscience Financial Officers. Mr. Hoffman formerly served as a director and President of the San Diego Chapter of Financial Executives International and was an advisor to the Financial Accounting Standard Board (FASB) for 10 years (2010 to 2020) advising the United States accounting rulemaking organization on emerging issues and new financial guidance. Mr. Hoffman holds a B.B.A. from St. Bonaventure University.

Craig Tendler, M.D. was appointed as a member of our board of directors on March 10, 2025. Dr. Tendler is an experienced pharmaceutical and biotech industry professional. From January 2010 through December 2024, Dr. Tendler served as the Vice President, Oncology Clinical Development, Diagnostics, and Global Medical Affairs of Johnson & Johnson Innovative Medicine Research & Development where was responsible for creating and overseeing robust development plans, including optimal integration of biomarkers and diagnostics, and comprehensive data generation activities for all products in the oncology portfolio. During his tenure at Johnson & Johnson, Dr. Tendler and his team worked in collaboration with the FDA and the European Medicines Agency to secure worldwide approvals of transformational treatment in prostate cancer, hematologic malignancies, as well as for lung and bladder cancer. He played an instrumental role in achieving 13 FDA breakthrough designations for accelerating the early development of promising investigational medicines intended for the treatment of serious oncology conditions.

Prior to joining Johnson & Johnson Innovative Medicine, Dr. Tendler served as the Vice President of Oncology Clinical Research and Chair of the Oncology Licensing Committee at the Schering-Plough Research Institute. In addition to his pharmaceutical industry experience, Dr. Tendler has served as Co-Chair of the Friends of Cancer Research Corporate Council, member of the Bloomberg New Economy International Cancer Coalition, and member of the Admissions Committee, Mount Sinai School of Medicine. Dr. Tendler was an Assistant Professor of Pediatrics/Hematology-Oncology at the Mount Sinai School of Medicine and a NIH physician-scientist grant recipient and research fellow at the National Cancer Institute in Bethesda, Maryland. Dr. Tendler earned his undergraduate degree from Cornell University and graduated from the Mount Sinai School of Medicine, New York City, with high honors and induction into the Alpha Omega Alpha Medical Society.

Election of Officers

Our executive officers are appointed by, and serve at the discretion of, our board of directors. There are no family relationships among any of our directors or executive officers.

Board Composition

Our board of directors consists of six members. Our articles of incorporation each provides that directors are to be elected at each annual meeting of stockholders to hold office until the expiration of the term for which elected and until such director’s successor is elected and qualified or until such director’s earlier death, resignation, or removal.

Director Independence

Based on information provided by each director concerning his background, employment and affiliations, each of the directors on our board of directors, other than Dr. James Bianco and Robert E. Hoffman, currently qualify as independent directors, as defined under Nasdaq listing rules (the “Nasdaq listing rules”), and our board of directors consists of a majority of “independent directors,” as defined under the rules of the SEC and Nasdaq listing rules relating to director independence requirements. In addition, we are subject to the rules of the SEC and Nasdaq relating to the membership, qualifications, and operations of certain committees of our board of directors, as discussed below.

On March 18, 2026, we entered into a Consulting Agreement with Tendler Biotech Consulting LLC, an entity owned by our director Craig Tendler, under which Dr. Tendler provides, through Tendler Biotech, specified consulting services on an as-requested basis relating to the Company’s development strategy and operations in connection with the Company’s product pipeline. As a result of this Consulting Agreement, pursuant to which Tendler Biotech will receive an hourly fee, Dr. Tendler may in the future cease to be considered an “independent director” of the Company.

Committees of Our Board of Directors

Our board of directors has established an audit committee, a compensation committee, and a nominating and corporate governance committee, each of which operate pursuant to a charter adopted by our board of directors. Our board of directors may also establish other committees from time to time to assist our company and our board of directors.

*Chairman of our board of directors.

Audit Committee

The audit committee oversees and monitors our financial reporting process and internal control system, reviews and evaluates the audit performed by our registered independent public accountants and reports to our board of directors any substantive issues found during the audit. The audit committee is directly responsible for the appointment, compensation and oversight of the work of our registered independent public accountants. The audit committee reviews and approves all transactions with affiliated parties.

The audit committee consists of James Manuso, Ph.D., MBA (chairman), Alan List, M.D., and George Ng. Our board of directors has also reviewed the education, experience and other qualifications of each member of the audit committee and based upon such review, has determined that Dr. Manuso is an “audit committee financial expert”, as defined by the rules of the SEC.

To qualify as independent to serve on our audit committee, listing standards of Nasdaq and the applicable SEC rules require that a director not accept any consulting, advisory or other compensatory fee from us, other than for service as a director, or be an affiliated person of our company.

Compensation Committee

The compensation committee assists our board of directors in fulfilling its oversight responsibilities relating to (i) corporate governance practices and policies and (ii) compensation matters, including compensation of the directors and senior management of our company and the administration of compensation plans of our company.

The compensation committee of our company consists of Alan List, M.D. (chairman) and James Manuso, Ph.D., MBA. Each member of our compensation committee is a “non-employee” director within the meaning of Rule 16b-3 of the rules promulgated under the Exchange Act and independent within the meaning of the independent director guidelines of Nasdaq.

Nominating and Corporate Governance Committee

The nominating and corporate governance committee assesses potential candidates to fill perceived needs on our board of directors for required skills, expertise, independence and other factors. A director candidate recommended by our stockholders will be considered in the same manner as a nominee recommended by a board member, management or other sources. Stockholders wishing to recommend a candidate for nomination should contact our Secretary in writing at our Corporate Secretary, c/o TuHURA at 10500 University Center Drive, Suite 110, Tampa, FL 33612. The nominating and corporate governance committee has discretion to decide which individuals to recommend for nomination as directors.

The nominating and corporate governance committee of our company consists of George Ng (chairman),Alan List, M.D. and Craig Tendler, M.D. We believe that the composition of the nominating and corporate governance committee meets the requirements for independence under, and the functioning of such nominating and corporate governance committee complies with, any applicable requirements of the rules and regulations of Nasdaq.

Compensation Committee Interlocks and Insider Participation

Each member of the compensation committee is a “non-employee” director within the meaning of Rule 16b-3 of the rules promulgated under the Exchange Act and independent within the meaning of the independent director guidelines of Nasdaq. None of our executive officers serve as a member of our board of directors or compensation committee of any entity that has one or more executive officers who is serving on our board of directors or compensation committee.

Code of Business Conduct and Ethics for Employees, Executive Officers, and Directors

We adopted a Code of Ethics and Conduct that applies to all of our executive officers, financial and accounting officers, our directors, financial managers and all of our employees. Each of the members of our board of directors is committed to a high standard of corporate governance practices and, through their respective oversight roles, encourage and promote a culture of ethical business conduct. A copy of our Code of Ethics and Conduct is posted under the “Investors” tab on our website, which is located at www.tuhurabio.com.

Insider Trading Policy

Our board of directors has adopted an Insider Trading Policy, which applies to all of our directors, officers and employees, as well as their family members and entities under their control. The policy prohibits such persons and entities from engaging in hedging transactions involving our equity securities, such as prepaid variable forward contracts, equity swaps, collars and exchange funds, or other transactions that hedge or offset, or are designed to hedge or offset, any decrease in the market value of our equity securities.

Policy Relating to Recovery of Erroneously Awarded Compensation (Clawback Policy)

We have instituted a clawback policy in accordance with the Nasdaq’s final rules implementing the incentive-based compensation recovery provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act, effective October 2, 2023, to support a culture of focused, diligent and responsible management that discourages conduct detrimental to our growth. The policy applies to each person who serves as an executive officer of our company, as defined in Rule 10D-1(d) under the Exchange Act, which include our named executive officers (each, a “covered employee”). In the event of a qualifying financial restatement, a covered employee will be required to forfeit erroneously awarded incentive compensation to the Company to the extent required under applicable law.

Communications with the Board

Any securityholder or any other interested party who desires to communicate with our board of directors, our non-management directors or any specified individual director, may do so by directing such correspondence to the attention of the Secretary, TuHURA Biosciences, Inc., 10500 University Center Dr., Suite 110, Tampa, Florida 33612. The Secretary will forward the communication to the appropriate director or directors as appropriate.

Delinquent Section 16(a) Reports

Section 16(a) of the Exchange Act requires our directors, executive officers and persons who beneficially own more than 10% of our common stock to file reports of ownership and changes of ownership with the SEC. Based solely on our review of the copies of such forms furnished to us, we believe that during the fiscal year ended December 31, 2025, all Section 16(a) filing requirements applicable to our officers, directors and greater than 10% beneficial owners were complied with on a timely basis, except for a late Form 4 filed by each of Dan Dearborn and James A. Bianco for a grant of stock options on December 12, 2025, and a late Form 4 filed by Craig Tendler for a grant of stock options on March 10, 2025.

Item 11. Executive Compensation.

On October 18, 2024, we completed the Kintara Merger with Legacy TuHURA. At the effective time of the Kintara Merger, our management was replaced with the management of Legacy TuHURA. Unless otherwise indicated, the disclosures in this section regarding our common stock or securities convertible into common stock for periods or as of a date that precedes the closing of the Kintara Merger have been adjusted to give effect to the transactions and 35-for-1 reverse stock split consummated in connection with the Kintara Merger.

This discussion may contain forward-looking statements that are based on our current plans, considerations, expectations and determinations regarding future compensation programs. Actual compensation programs that we adopt in the future could vary significantly from our historical practices and currently planned programs summarized in this discussion.

Executive Compensation Overview

Our named executive officers (“NEOs”) for the year ended December 31, 2025, which consist of each person who served as our principal executive officer and the next two most highly-compensated executive officers who served during the year ended December 31, 2025, are as follows:

Summary Compensation Table

The following table summarizes the compensation earned by, awarded to or paid to the NEOs for the years ended December 31, 2025 and 2024:

Narrative Disclosure to Summary Compensation Table

Employment Agreements

Dr. James Bianco. On March 29, 2024, we entered into a second amended and restated employment agreement with Dr. Bianco under which Dr. Bianco serves as our President and Chief Executive Officer for an initial term of two years, unless earlier terminated. Dr. Bianco’s employment agreement provides that he will serve as the President and Chief Executive Officer of our company. Upon the expiration of the initial two-year term, the term of Dr. Bianco’s employment agreement will automatically extend, upon the same terms and conditions, for additional periods of one year, unless, either party gives 90 days’ prior notice of its intention not to extend the term. Dr. Bianco’s annual base salary for fiscal year 2026 is $605,965, to be reviewed periodically by our board of directors or any compensation committee thereof. Dr. Bianco is also eligible for consideration to receive an annual incentive bonus of up to 125% of his base salary and a discretionary bonus. The amount of any incentive bonus is to be established annually based on objectives determined by our board of directors or any compensation committee thereof, and the timing and amount of any discretionary bonus is to be determined at the sole discretion of our board of directors or any compensation committee thereof. Dr. Bianco must remain employed on the date any bonus is to be paid to receive such bonus. Dr. Bianco’s employment agreement also provides that we will pay for a $2,000,000 term life insurance policy for the benefit of Dr. Bianco’s designated beneficiaries. Dr. Bianco’s employment agreement provides that if Dr. Bianco’s employment is terminated for any reason, Dr. Bianco shall receive any base salary that had accrued but not been paid, payment of accrued and unused vacation time, and any reimbursement due to him pursuant to his employment agreement (“Accrued Obligations”). Additionally, if Dr. Bianco is terminated without cause, including by notice of non-extension of his employment agreement, or he resigns for good reason, as such terms are defined in his employment agreement, and he executes a release of claims in the form prescribed by us within 30 days of the termination, (A) we are obligated to pay to Dr. Bianco (i) his Accrued Obligations, (ii) two years of his base salary plus an amount equal to the average of his two prior years’ bonuses, paid in one lump sum within 30 days of the separation, and (iii) reimbursement for monthly premiums to continue health insurance for two years or until other health insurance is obtained by Dr. Bianco and (B) any unvested portion of any outstanding options or unvested shares of our common stock granted to Dr. Bianco will immediately vest and become exercisable and will remain exercisable for a period of seven years following the date of his separation. If Dr. Bianco’s termination occurs upon the same circumstances, except that it occurs immediately prior to, upon, or within two years following a Change of Control (as defined in Dr. Bianco’s employment agreement), Dr. Bianco’s bonus payment will instead be an amount equal to the greater of the average of the two prior years’ bonuses or 50% of his base salary.

Dan Dearborn. On March 29, 2024, we entered into a second amended and restated employment agreement with Mr. Dearborn under which Mr. Dearborn serves as our Chief Financial Officer for an initial term of two years, unless earlier terminated. Mr. Dearborn’s employment agreement also provides that he will serve as the Chief Financial Officer of our company. Upon the expiration of the initial two-year term, the term of Mr. Dearborn’s employment agreement will automatically extend, upon the same terms and conditions, for additional periods of one year, unless, either party gives 90 days’ prior notice of its intention not to extend the term. Mr. Dearborn’s annual base salary for fiscal year 2026 is $403,676, to be reviewed periodically by our board of directors or any compensation committee thereof. Mr. Dearborn is also eligible for consideration to receive an annual incentive bonus up to 100% of his base salary and a discretionary bonus. The amount of any incentive bonus is to be established annually based on objectives determined by our board of directors or any compensation committee thereof, and the timing and amount of any discretionary bonus is to be determined at the sole discretion of our board of directors or any compensation committee thereof. Mr. Dearborn must remain employed on the date any bonus is to be paid to receive such bonus. Mr. Dearborn’s employment agreement provides that if Mr. Dearborn’s employment is terminated for any reason, Mr. Dearborn shall receive his Accrued Obligations. Additionally, if Mr. Dearborn is terminated without cause, including by notice of non-extension of his employment agreement, or he resigns for good reason, as such terms are defined in his employment agreement, and he executes a release of claims in the form prescribed by us within 30 days of the termination, (A) we are obligated to pay to Mr. Dearborn (i) his Accrued Obligations, (ii) one year of his base salary plus an amount equal to the average of his two prior years’ bonuses, paid in one lump sum within 30 days of the separation, and (iii) reimbursement for monthly premiums to continue health insurance for one year or until other health insurance is obtained by Mr. Dearborn and (B) any unvested portion of any outstanding options or unvested shares of our common stock granted to Mr. Dearborn will immediately vest and become exercisable and will remain exercisable for a period of seven years following the date of his separation. If Mr. Dearborn’s termination occurs upon the same circumstances, except that it occurs immediately prior to, upon, or within two years following a Change of Control (as defined in Mr. Dearborn’s employment agreement), Mr. Dearborn’s bonus payment will instead be an amount equal to the greater of the average of the two prior years’ bonuses or 50% of his base salary.

Base Salaries

The base salaries for Dr. Bianco and Mr. Dearborn for fiscal years 2024 and 2025 were established in connection with their employment agreements. The table below sets forth the base salary as of December 31, 2025, for each NEO.

Annual Bonuses

Each NEO is eligible to receive an annual incentive bonus based on objectives determined by our board of directors or any compensation committee thereof.

A target annual bonus, as a percentage of base salary, is established for each NEO, as set forth in the table below. Following review of individual performance during fiscal 2025, our board of directors (or the compensation committee, as applicable) determined that it was appropriate to award the following annual bonuses for fiscal 2025.

Equity Awards

We have historically provided long-term incentive compensation to the NEOs through grants of stock options to purchase shares of our common stock under the TuHURA Amended and Restated 2019 Equity Incentive Plan (the “2019 Plan”) and the TuHURA 2024 Equity Incentive Plan (the “2024 Plan”).

Retirement Plans

TuHURA maintains a 401(k) plan for employees, although it does not currently make matching contributions to such plan. Except for the 401(k) plan, we have not had and currently do not have a pension or other retirement plan or a nonqualified deferred compensation plan.

Other Compensation

All NEOs are eligible to participate in our employee benefit plans, including our medical, dental, vision, life and disability insurance plans, in each case on the same basis as all other employees, provided that we pay all premiums for the medical, dental, and vision plans for our executive officers. For the NEOs, we pay for and on behalf of each NEO life insurance premiums. We generally do not provide perquisites or personal benefits to our NEOs, except in limited circumstances.

Outstanding Equity Awards at Fiscal Year-End

The following table sets forth certain information regarding outstanding stock options held by the NEOs as of December 31, 2025.

Potential Payments Upon Termination or Change in Control

Under the employment agreements with the NEOs, in the event the NEO is terminated by us other than for “Cause” or by the NEO for “Good Reason,” the NEO will be eligible for the following severance benefits if he executes a release of claims in the form prescribed by us within 30 days of the termination: (A) payment of (i) employee’s Accrued Obligations, (ii) two years of base salary plus an amount equal to the greater of the average of such employee’s two prior years’ bonuses or 50% of such employee’s then-base salary, paid in one lump sum within 30 days of the separation, and (iii) reimbursement for monthly premiums to continue health insurance for two years or until other health insurance is obtained by such employee and (B) any unvested portion of any outstanding options or unvested shares of our common stock granted to such employee will immediately vest and become exercisable and will remain exercisable for a period of seven years following the date of such employee’s separation. If the termination of the NEO occurs upon the same circumstances, except that it occurs immediately prior to, upon, or within two years following a Change of Control (as defined in the NEO’s employment agreements), the NEO’s bonus payment will instead be an amount equal to the greater of the average of the two prior years’ bonuses or 50% of his base salary. The Kintara Merger was not deemed a Change of Control for purposes of each NEO employment agreement, and the merger transaction with Kineta, Inc. was not deemed a Change of Control for purposes of each NEO employment agreement.

For purposes of the employment agreements and the outstanding stock options: “Cause” is defined as (i) gross negligence or willful misconduct in the performance of employee’s duties to our company after written notice to employee and the failure to cure same within ten business days after receipt of written notice; (ii) refusal or failure to act in accordance with any lawful specific direction or order of our board of directors after written notice to employee of such refusal or failure and failure to cure the same within ten days after receipt of written notice; (iii) commission of any act of fraud with respect to us; (iv) employee’s material breach of any written agreement or material policy of ours after written notice to employee of such breach and failure to cure, if curable, the same within ten business days after receipt of written notice; and (v) employee’s conviction of, or plea of nolo contendre to, a crime which adversely affects our business or reputation, in each case as determined by our board of directors; (vi) employee’s willful unauthorized disclosure of Confidential Information (as defined in our confidential disclosure policy); (vii) continued or excessive absences or tardiness, after an official warning has been issued and failure to cure (not including authorized leaves of absence, FMLA leave, or absences that are a result of an accommodation under ADA).

Summary Description of Our Equity Plans

TuHURA (f/k/a Morphogenesis, Inc.) 2019 Amended and Restated Equity Incentive Plan

The 2019 Plan was approved by the Legacy TuHURA board of directors and its stockholders in January 2019. The 2019 Plan, which amended and restated the TuHURA 2016 Stock Option Plan, provided for the issuance of up to 20,000,000 shares of Legacy TuHURA common stock, which includes the number of outstanding awards made pursuant to the TuHURA 2016 Stock Option Plan. The 2019 Plan allowed for awards of incentive stock options to TuHURA’s employees, nonqualified stock options to TuHURA’s directors, restricted stock, restricted stock units, and other stock-based awards. In connection with the closing of the Kintara Merger, TuHURA (f/ka Kintara Therapeutics, Inc.) assumed all outstanding awards under the 2019 Plan. No further grants will be made under the 2019 Plan.

2024 Equity Incentive Plan

In connection with the Kintara Merger, our board of directors approved the 2024 Plan on August 7, 2024, which was subsequently approved at a special meeting of our stockholders held on October 4, 2024. The 2024 Plan replaced the Kintara Therapeutics, Inc. 2017 Omnibus Equity Incentive Plan, as amended (the “Legacy Kintara Plan”), of which no further grants will be made under. The following is a summary of certain terms and conditions of the 2024 Plan.

Administration. Our board of directors or the compensation committee of the board of directors, or any successor committee with similar authority that our board of directors may appoint, (the “Committee”) will administer the 2024 Plan (the “Administrator”). The 2024 Plan authorizes the Administrator to interpret the provisions of the 2024 Plan and award agreements; prescribe, amend and rescind rules and regulations relating to the 2024 Plan; correct any defect, supply any omission, or reconcile any inconsistency in the 2024 Plan, any award or any agreement covering an award; and make all other determinations necessary or advisable for the administration of the 2024 Plan, in each case in its sole discretion.

Eligibility. The Administrator may designate any of the following as a participant from time to time, to the extent of the Administrator’s authority: any officer or other employee of our company or our affiliates; any individual who we or one of our affiliates has engaged to become an officer or employee; any consultant or advisor who provides services to our company or our affiliates; or any director, including a non-employee director.

Types of Awards. The 2024 Plan permits the grant of stock options (including incentive stock options), stock appreciation rights, performance shares, performance units, restricted stock, restricted stock units, cash incentives and other types of awards authorized under the 2024 Plan. These award types are described in further detail below.

Stock Subject to the 2024 Plan. The 2024 Plan provides that 11,000,000 shares of our common stock are reserved for issuance under the 2024 Plan, all of which may be issued pursuant to the exercise of incentive stock options. The aggregate number of shares of common stock reserved for issuance under the 2024 Plan increases annually on the first day of each fiscal year after the consummation of the Kintara Merger, commencing on the first day of our fiscal year 2025 and with a final increase on the first day of the 2034 fiscal year, by a number of shares of common stock (“Evergreen Shares”) equal to the lesser of: (i) 5.0% of the outstanding shares of all classes of our common stock as of the last day of the immediately preceding fiscal year or (ii) such other number of shares (which may be zero) as our board of directors may determine. Evergreen Shares may not be issued pursuant to the exercise of incentive stock options. The number of shares reserved for issuance under the 2024 Plan increased by 2,116,187 Evergreen Shares on January 1, 2025 and an additional 2,996,828 Evergreen Shares on January 1, 2026.

The number of shares reserved under the 2024 Plan will be depleted on the date of the grant of an award by the maximum number of shares, if any, with respect to which such award is granted. An award that may be settled solely in cash shall not cause any depletion of the 2024 Plan’s share reserve at the time such award is granted. In general, if an award granted under the 2024 Plan lapses, expires, terminates or is canceled without the issuance of shares under the award, if it is determined during or at the conclusion of the term of an award that all or some portion of the shares under the award will not be issuable on the basis that the conditions for such issuance will not be satisfied, if shares are forfeited under an award or if shares are issued under any award and we reacquire them pursuant to rights reserved upon the issuance of the shares, then such shares will again be available for issuance under the 2024 Plan, except that shares reacquired pursuant to reserved rights may not be issued pursuant to incentive stock options. Shares of common stock not issued or delivered as a result of the net settlement of an outstanding option or stock appreciation right, shares tendered or withheld in payment of the exercise price of an option, shares tendered or withheld to satisfy tax withholding obligations and shares purchased by us using proceeds from option exercises may not be re-credited to the reserve.

Director Award Limit. The maximum number of shares that may be subject to awards granted during a single fiscal year to any individual non-employee director, subject to appropriate adjustments in accordance with the 2024 Plan, may not exceed the number of shares that has a grant date fair value of, when added to any cash compensation received by such non-employee director, $1,000,000, except that such limit will be $2,000,000 for the first fiscal year that the non-employee director serves on the board.

Options. The Administrator will generally determine all terms and conditions of each option. However, the grant date may not be any day prior to the date that the Administrator approves the grant, the exercise price may not be less than the fair market value of the shares subject to the option as determined on the date of grant (110% of the fair market value in the case of an incentive stock option granted to a 10% stockholder) and the option must terminate no later than ten years after the date of grant (five years in the case of an incentive stock option granted to a 10% stockholder). If a participant disposes of shares issued pursuant to the exercise of an incentive stock option under the circumstances described in Code Section 421(b) (relating to certain disqualifying dispositions), that participant must notify us of such disposition within 10 days. To the extent previously approved by the Administrator (in an award agreement or in administrative rules), and subject to such procedures as the Administrator may specify, the payment of the exercise price of options may be made by payment in cash or previously owned shares, through a broker-dealer assisted sell-to-cover transaction, by withholding shares otherwise deliverable upon exercise, or a combination of the foregoing. Except to the extent otherwise set forth in an award agreement, a participant will have no rights as a holder of common stock as a result of the grant of an option until the option is exercised, the exercise price and applicable withholding taxes are paid and the shares subject to the option are issued thereunder.

Stock Appreciation Rights. The Administrator will generally determine all terms and conditions of each stock appreciation right. A stock appreciation right is the right of a participant to receive cash in an amount, and/ or common stock with a fair market value, equal to the appreciation of the fair market value of a share of common stock during a specified period of time. However, the grant date may not be any day prior to the date that the Administrator approves the grant, the grant price may not be less than the fair market value of the shares subject to the stock appreciation right as determined on the date of grant and the stock appreciation right must terminate no later than ten years after the date of grant.

Performance and Stock Awards. The Administrator will generally determine all terms and conditions of each award of shares, restricted stock, restricted stock units, performance shares or performance units. Restricted stock means shares of common stock that are subject to a risk of forfeiture, restrictions on transfer or both a risk of forfeiture and restrictions on transfer. A restricted stock unit means the right to receive a payment equal to the fair market value of one share of common stock. Performance shares means the right to receive shares of common stock, including restricted stock, to the extent performance goals are achieved (or other requirements are met). A performance unit means the right to receive a cash payment or shares valued in relation to a unit that has a designated dollar value or the value of which is equal to the fair market value of one or more shares of common stock, to the extent

performance goals are achieved (or other requirements are met). The Administrator will determine the length of the vesting and/or performance period.

Any participant who holds restricted stock has the right to vote their shares, unless the Administrator provides otherwise. Any participant who holds other types of awards does not have any rights as a stockholder of our company, unless the Administrator provides otherwise.

Cash Incentive Awards. The Administrator has the authority to grant cash incentive awards. A cash incentive award is the right to receive a cash payment to the extent performance goals are achieved. The Administrator will determine all of the terms and conditions of each cash incentive award, including the performance goals, the performance period, the potential amount payable and the timing of payment.

Other Stock-Based Awards. The Administrator may grant a participant shares of unrestricted stock as a replacement for other compensation to which the participant is entitled, such as in payment of director fees, in lieu of cash compensation, in exchange for cancellation of compensation right or as a bonus.

Transferability of Awards. Awards under the 2024 Plan may not be sold, transferred for value, pledged, assigned, or otherwise alienated or hypothecated, other than by will or the laws of descent and distribution, unless and to the extent the Administrator allows a participant to: (1) designate in writing a beneficiary to exercise the award or receive payment under the award after the participant’s death; (2) transfer an award to the former spouse of the participant as required by a domestic relations order incident to a divorce; or (3) transfer an award (provided the participant may not receive consideration for such transfer), provided that in each case, the assignee cannot further transfer the award. Any permitted transfer shall be subject to compliance with applicable securities laws.

Adjustments.

Under the terms of the 2024 Plan, if any of the following occurs:

Repricing Prohibited. Neither the Administrator nor any other person may, without stockholder approval: (1) amend the terms of outstanding stock options or stock appreciation rights to reduce the exercise price of such outstanding stock options or stock appreciation rights; (2) cancel outstanding stock options or stock appreciation rights in exchange for stock options or stock appreciation rights with an exercise price that is less than the exercise price of the original stock options or stock appreciation rights; or (3) cancel outstanding stock options or stock appreciation rights with an exercise price above the current share price in exchange for cash or other securities.

Backdating Prohibited. The Administrator may not grant a stock option or stock appreciation right with a grant date that is effective prior to the date the Administrator takes action to approve such award.

Term of Plan. Unless our board of directors terminates the 2024 Plan on an earlier date, the 2024 Plan will terminate, and no further awards can be granted thereunder, after the 10th anniversary of the latest date on which the 2024 Plan, or any amendment thereto or restatement thereof, has been approved by our stockholders.

Termination and Amendment of the 2024 Plan. The Administrator may amend or terminate the 2024 Plan at any time, except that (1) our board of directors must approve any amendment that it is required to approve by reason of applicable law or prior action of our board, (2) stockholders must approve any amendments if such approval is required by any applicable law or the listing requirements of any principal securities exchange on which our shares are then traded, and (3) stockholders must approve any amendments that would diminish the backdating or repricing restrictions contained in the 2024 Plan.

Amendment, Modification, Cancellation and Disgorgement of Awards. Subject to exceptions specified in the 2024 Plan, the Administrator may amend or cancel an award granted under the 2024 Plan at any time, or waive any restrictions or conditions applicable to any award or the exercise of the award. In addition, the Administrator will have full power and authority to terminate or cause a participant to forfeit an award, and require the participant to disgorge any gains attributable to an award, if the participant engages in any action constituting, as determined by the Administrator in its discretion, cause for termination or a breach of a material policy, any award agreement or any other agreement concerning noncompetition, nonsolicitation, confidentiality, trade secrets, intellectual property, nondisparagement or similar obligations. All awards, and any shares issued or cash paid pursuant to an award, are also subject to any applicable recoupment or clawback policy adopted by us or any recoupment or similar requirement contained in applicable law, regulation or the listing requirements of the exchange or system on which our stock is principally traded.

Non-Employee Director Compensation

The following table presents the total compensation for each person who served as a non-employee member of our board of directors and received compensation for such service during the fiscal year ended December 31, 2025. Dr. James Bianco, our Chief Executive Officer, did not receive any compensation for his service as a member of our board of directors for the fiscal year ended December 31, 2025. Dr. Bianco’s compensation for service as an employee for fiscal year 2025 is presented in the section titled “Executive Compensation—Summary Compensation Table” above.

Non-Employee Director Compensation Program

The following describes the material terms of our Non-Employee Director Compensation Program (the “Program”), as adopted by our board of directors effective January 1, 2025. The Program provides for both cash retainers and equity-based compensation payable to each member of our board who is not an employee of the Company or any parent or subsidiary of the Company. Cash and equity compensation under the Program is paid or granted automatically without further board of director action,

unless a non-employee director declines receipt by written notice to the Company. The board of directors may amend, modify, or terminate the Program at any time in its sole discretion.

Cash Compensation

Beginning January 1, 2025, each non-employee director is entitled to receive the following annual cash retainers:

Each non-employee director receives an annual retainer of $40,000 for service on our board of directors, except that the Chair of the Board receives an annual retainer of $70,000. In addition, non-employee directors serving on standing committees of our board of directors receive the following additional annual retainers for their committee service:

All annual retainers are earned on a quarterly basis based on a calendar quarter and are paid by the Company in arrears not later than the fifteenth day following the end of each calendar quarter. In the event a non-employee director does not serve for an entire calendar quarter, the retainer is prorated for the portion of the quarter actually served.

Equity Compensation

Under the Program, each non-employee director who is serving on our board of directors as of the first business day of January each year is automatically granted stock options to purchase shares of the Company's common stock under the 2024 Plan or any other applicable equity incentive plan then maintained by the Company. The number of stock options granted is determined by dividing (A) $185,000 (or $215,000 in the case of the Chair of the Board) by (B) the Black-Scholes value of the right to purchase one share of our common stock on the date of grant, using the assumptions employed by the Company for financial statement purposes and the closing price per share on the date of grant.

Each annual option award vests in three equal installments on the first three anniversaries of the date of grant, subject to the non-employee director’s continued service on our board of directors through each applicable vesting date. Unless the board of directors otherwise determines, no unvested portion of an award will vest following a non-employee director’s termination of service. Notwithstanding the foregoing, all outstanding equity awards held by a non-employee director become fully vested upon the director's death or disability, or upon a Change of Control (as defined in the 2024 Plan).

The board of directors retains discretion to determine that future awards may be granted, in whole or in part, in the form of alternative equity awards permitted under the 2024 Plan, such as restricted stock. All grants under the Program are subject to the terms and provisions of the 2024 Plan and the applicable award agreements.

As of December 31, 2025, each of our non-employee directors held the following outstanding options:

Item 12. Security Ownership of Certain Beneficial Owners and Management Related Stockholder Matters.

Securities Authorized for Issuance Under Equity Compensation Plans

The following table provides certain information as of December 31, 2025, with respect to all of our equity compensation plans in effect on that date:

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

To our knowledge, the following table sets forth certain information regarding the beneficial ownership of our common stock as of April 30, 2026 (the “Beneficial Ownership Date”) (except as indicated below) by:

Beneficial ownership is determined in accordance with the rules of the SEC and generally includes voting or investment power with respect to securities. Except as noted by a footnote, and subject to community property laws where applicable, we believe based on the information provided to us that the persons and entities named in the table below have sole voting and investment power with respect to all shares of common stock shown as beneficially owned by them.

The table lists applicable percentage ownership based on 63,682,528 shares of common stock outstanding as of the Beneficial Ownership Date. The number of shares beneficially owned includes shares of common stock that each person has the right to acquire within 60 days of the Beneficial Ownership Date, including upon the exercise of stock options, warrants and the settlement of restricted stock units. These stock options, warrants and restricted stock units shall be deemed to be outstanding for the purpose of computing the percentage of outstanding shares of common stock owned by such person but shall not be deemed to be outstanding for the purpose of computing the percentage of outstanding shares of common stock owned by any other person.

This table is based upon information supplied by our officers, directors as of the record date and the principal stockholders and Schedules 13D and 13G filed with the SEC.

*Represents beneficial ownership of less than 1%.

Item 13. Certain Relationships and Related Transactions, and Director Independence.

In addition to the compensation arrangements, including employment, termination of employment and change in control arrangements, with our directors and executive officers, including those discussed in the section titled “Executive Compensation,” in this Annual Report, the following is a description of each transaction involving the Company since January 1, 2024 and each currently proposed transaction in which:

Parkview Holdings One LLC Transactions

Loan Agreement

On April 21, 2026, the Company entered into a Loan Agreement (the “Loan Agreement”) with Parkview Holdings One LLC (“Parkview”), an affiliate of K&V Investment, a holder of more than 5% of the fully diluted capital stock of the Company, which such entity is owned by Vijay Patel. Pursuant to the Loan Agreement, Parkview agreed to extend a $50 million revolving credit facility to the Company, maturing on April 21, 2031, to fund general corporate purposes, including clinical trials and development programs. Borrowings are secured by substantially all of the assets of the Company and its subsidiaries and bear interest at 12% per annum (plus an additional 6% during any event of default), payable monthly in arrears. If the Company achieves net profits from pharmaceutical product sales for two consecutive fiscal quarters, it is obligated to repay principal equal to 75% of such net profits from the prior quarter.

Fee Letter

In connection with the Company’s entrance into the Loan Agreement, on April 21, 2026, the Company and Parkview entered into a Fee Letter whereby the Company agreed to pay a one-time commitment fee of $5 million (representing 10% of the total commitment), which the Company elected to pay by issuing 1,878,287 shares of Company common stock (the “Loan Fee Shares”) to Parkview, subject to stockholder approval. The Company also agreed to pay an annual facility fee of 1.5% of the total commitment beginning on the first anniversary of the Loan Agreement.

Royalty Agreement

In connection with the Loan Agreement, the Company entered into a Royalty Agreement (the “Royalty Agreement”), dated April 21, 2026, granting Parkview an annual royalty in the low to mid-single digits on Net Sales (as defined in the Royalty Agreement) of products based on the Company's IFx-2.0 intellectual property, up to $450 million in Net Sales per year, continuing through the last-to-expire patent covering IFx-2.0.

Warrant Amendment Agreements

In addition, pursuant to the terms of the Loan Agreement, the Company and Parkview entered into two Warrant Amendment Agreements (the “Warrant Amendment Agreements”) to extend to April 21, 2031, the exercise period during which 4,364,873 of the Company’s warrants to purchase common stock held by K&V Investment may be exercised (3,049,432 of such warrants have an exercise price of $3.69 per share and 1,315,441 of such warrants have an exercise price of $5.70 per share, and such warrants constitute all of the Company warrants held by K&V Investment other than warrants issued in the Company’s registered direct offering which had its first closing on December 10, 2025).

Consulting Agreement with Tendler Biotech Consulting

On March 18, 2026, we entered into a Consulting Agreement with Tendler Biotech Consulting LLC, an entity owned by one of directors, Dr. Craig Tendler. Under this agreement, Dr. Tendler provides, through Tendler Biotech, specified consulting services on an as-requested basis relating to the Company’s development strategy and operations in connection with the Company’s product pipeline. Under this agreement, Tendler Biotech is entitled to receive an hourly fee of $1,250 and reimbursement of reasonable out-of-pocket expenses. The Consulting Agreement has a term of two years but may be terminated early by either party at any time upon at least 15 days’ prior written notice. There have been no fees paid or accrued to Tendler Biotech under this Agreement from March 18, 2026 through April 30, 2026, although such fees may in the future exceed $120,000 in any 12-month period.

December 2025 Offering

On December 9, 2025 (the “First Closing”), the Company and K&V Investment entered into a Securities Purchase Agreement whereby (the “Securities Purchase Agreement”) K&V Investment agreed to purchase $7 million (the “Subscription Amount”) for the issuance of an aggregate of 9,462,423 shares of common stock (the “K&V Shares”),9,462,423 series A common stock purchase warrants (the “Series A Warrants”) and 9,462,423 series B common stock purchase warrants (the “Series B Warrants”). On the same date, the Company and K&V Investment entered into a Side Letter to the Securities Purchase Agreement (the “Side Letter”) whereby the Company and K&V Investment agreed that K&V Investment would fund and purchase such securities (i) with respect to $5 million of the Subscription Amount, on a date chosen by K&V Investment to be no later than January 30, 2026 and (the “Second Closing”) and (ii) with respect to $2 million of the Subscription Amount, at a date chosen by K&V Investment no later than February 27, 2026 (the “Third Closing”).

Pursuant to the terms of the Securities Purchase Agreement and the Side Letter, the issuance of the K&V Shares, Series A Warrants and Series B Warrants to K&V Investment occurred in three tranches. At the First Closing, the Company issued an

aggregate of 5,219,999 shares of common stock, Series A Warrants to purchase up to an aggregate of 5,219,999 shares of common stock and Series B Warrants to purchase up to an aggregate of 5,219,999 shares of common stock. At the Second Closing, the Company issued an aggregate of 3,030,303 shares of common stock, Series A Warrants to purchase up to an aggregate of 3,030,303 shares of common stock and Series B Warrants to purchase up to an aggregate of 3,030,303 shares of common stock. At the Third Closing, the Company issued an aggregate of 1,212,121 shares of common stock, Series A Warrants to purchase up to an aggregate of 1,212,121 shares of common stock and Series B Warrants to purchase up to an aggregate of 1,212,121 shares of common stock. The Series A Warrants expire five and one-half years from the date of the First Closing and the Series B Warrants expire twenty-four months from the date of the First Closing. Each Series A Warrant and Series B Warrant has an exercise price of $1.95 per share and is exercisable beginning six months after the date of issuance.

Lending Transaction

On October 27, 2025, the Company entered into a Secured Promissory Note and Loan Agreement (the “Nachtrab Loan Agreement”) with the Matthew Nachtrab Revocable Trust dated 12/18/2014, a holder of more than 5% of the fully diluted capital stock of the Company (the “Lender”). Pursuant to the terms of the Nachtrab Loan Agreement, the Lender agreed to make loans to the Company in an aggregate principal amount of up to $3.0 million (the “Loans”) during a 30-day availability period beginning on the date of the Loan Agreement (the “Availability Period”). The Lender advanced the first Loan to the Company in the amount of $1.5 million simultaneously with the execution of the Loan Agreement (the “First Loan”).

On December 2, 2025, the Company and Lender entered into an amendment to the Loan Agreement (the “Amendment”) pursuant to which (i) the Lender agreed to extend the Availability Period to December 5, 2025 and (ii) the Company and Lender agreed that warrants issuable to the Lender under the Loan Agreement would consist of a warrant to purchase 150,000 shares of Company common stock for each $1.5 million of funds borrowed under the Loan Agreement (including under the First Loan), prorated for borrowings less than $1.5 million. Following the execution of the Amendment, on December 2, 2025, the Company borrowed an additional $1.5 million from the Lender under the Loan Agreement (the “Second Loan”), which resulted in aggregate Loans of $3.0 million made to the Company under the Loan Agreement. On the same date, the Company issued to the Lender an additional warrant to purchase an aggregate of 234,783 shares of Company common stock at an exercise price of $1.81 per share, consisting of 84,783 shares as a result of the First Loan and 150,000 shares as a result of the Second Loan. Such warrant expires two years from the issuance date. The Company satisfied and paid in full all principal and interest under the Nachtrab Loan Agreement on December 12, 2025.

June 2025 Offering

On June 2, 2025, the Company entered into a Securities Purchase Agreement (the “SPA”) with investors, of which included Pranabio Investments LLC and Garden Street House, LLC, affiliates of Samir Patel, and Matthew Nachtrab (collectively, the “Deferral Investors”), beneficial owners of greater than 5% of the Company’s fully diluted capital stock, for the purchase of shares and common stock purchase warrants at an exercise price equal to $3.3125 for a combined effective offering price for each share of common stock and accompanying common stock purchase warrants of $2.65. Approximately $3.7 million of the offering (the “Final Tranche Offering Amount”) was agreed to be purchased and funded by December 31, 2025 by the Deferral Investors, who agreed to defer the purchase of a portion of their subscribed shares of common stock and common stock purchase warrants. Each of the Deferral Investors paid their respective Final Tranche Offering Amount by December 31, 2025.

In addition, on September 5, 2025, each of Deferral Investors and the Company entered into an agreement (the “Final Purchase Agreements”) pursuant to which they agreed to immediately purchase an aggregate of $3.2 million of the Final Tranche Offering Amount in exchange for the Company’s agreement, set forth in a Warrant Amendment Agreement between the Company and each Deferral Investor (the “Warrant Amendment Agreements”), to extend the expiration dates of certain warrants to purchase an aggregate of 1.5 million shares of Company common stock that were issued by the Company’s predecessor in a 2024 private placement of convertible notes (the “2024 Warrants”). Under the Warrant Amendment Agreements, the expiration dates of the 2024 Warrants was extended to December 31, 2030.

TuHURA Note Financing

On April 2, 2024, K&V Investment, a holder of more than 5% of the fully diluted capital stock of the Company, participated in the TuHURA Note Financing and executed and delivered to Legacy TuHURA a subscription agreement, for $10.0 million in TuHURA convertible notes (the “K&V Investment Note”). In connection with the closing of the Kintara Merger, the K&V Investment Note converted into 3,157,059 shares of Legacy TuHURA common stock (as adjusted by the exchange ratio in the Kintara Merger), subject to the terms therein. K&V Investment’s subscription agreement provided for the initial funding of $500,000 on April 2, 2024, with the remaining $9.5 million funded in August 2024. In addition, and in connection with the TuHURA Note Financing, Legacy

TuHURA issued a warrant to K&V Investment to purchase 1,315,441 shares of Legacy TuHURA common stock (as adjusted by the exchange ratio in the Kintara Merger).

Indemnification Agreements

We have entered into indemnification agreements with each of our directors and executive officers. These indemnification agreements may require us, among other things, to indemnify our directors and executive officers against liabilities that may arise by reason of their status or service as directors or executive officers and to advance all expenses incurred by the directors and executive officers in investigating or defending any such action, suit, or proceeding.

Director Independence

See “Part III, Item 10 — Directors, Executive Officers and Corporate Governance — Director Independence” for information regarding director independence.

Item 14. Principal Accounting Fees and Services.

On July 31, 2019, Marcum LLP (“Marcum”), independent registered public accounting firm, was appointed as Kintara's auditors. Following the closing of the Kintara Merger, our audit committee appointed Cherry Bekaert LLP (“Cherry Bekaert”) as our independent registered public accounting firm for the year ending December 31, 2024. Cherry Bekaert has served as Legacy TuHURA’s independent auditor since 2018.

The following table summarizes the audit fees billed by Cherry Bekaert’s in connection with their audit of our consolidated financial statements and for other services provided during the period following the closing of the Kintara Merger and for the year ended December 31, 2025. For a summary of the audit fees paid by Kintara for the fiscal year ended June 30, 2024, see Kintara’s Annual Report on Form 10-K filed October 7, 2024.

Audit Committee Pre-Approval Policy and Procedures

In accordance with applicable laws, rules and regulations, our audit committee charter and pre-approval policies established by the audit committee require that the audit committee review in advance and pre-approve all audit and permitted non-audit fees for services provided to us by our independent registered public accounting firm. The services performed by, and the fees to be paid to, Cherry Bekaert for the years ending December 31, 2025 and 2024 were approved by our audit committee.

Part IV

Item 15. Exhibits, Financial Statement Schedules.

The following documents are filed as part of this Amendment:

(a)(1) Financial Statements

The list of consolidated financial statements set forth in the accompanying Index to the Consolidated Financial Statements at page F-1 of this Original Form 10-K is incorporated herein by reference.

(a)(2) Financial Statement Schedules

All financial statement schedules have been omitted because they are not applicable, not required or the information required is shown in the financial statements or the notes thereto.

(a)(3) Exhibits

The following is a list of exhibits filed (or incorporated by reference herein) as part of this Amendment.

† Confidential treatment is requested for certain confidential portions of this exhibit pursuant to Rule 24b-2 under the Exchange Act. In accordance with Rule 24b-2, these confidential portions have been omitted from this exhibit and filed separately with the Securities and Exchange Commission.

†† Schedule has been omitted pursuant to Item 601(a)(5) of Regulation S-K. TuHURA hereby undertakes to furnish copies of any of the omitted schedules upon request by the Securities and Exchange Commission.

# Indicates a management contract or any compensatory plan, contract or arrangement.

* Filed herewith.

** This certification is being furnished solely to accompany this Report pursuant to 18 U.S.C. Section 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.