and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Unregistered Sales of Equity Securities The information in

Entry into a Material Definitive Agreement Securities Purchase Agreement On May 12, 2026, Whitehawk Therapeutics, Inc. (the “Company”) entered into a Securities Purchase Agreement (the “Purchase Agreement”) with each of the purchasers named therein (the “PIPE Investors”), pursuant to which the Company agreed to sell to the PIPE Investors (i) 4,330,866 shares of the Company’s common stock, par value $0.0001 per share (“Common Stock”), at a purchase price of $3.92 per share, and (ii) 17,991,021…

of this Current Report on Form 8-K, including the information incorporated by reference from Exhibit 99.1 to this Current Report on Form 8-K, shall not be deemed to be incorporated by reference in the filings of the Company under the Securities Act. Forward Looking Statements The Company cautions you that statements contained in this report regarding matters that are not historical facts are forward-looking statements. These statements are based on the Company’s current beliefs and expectatio…

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Entry into a Material Definitive Agreement. Registration Rights Agreement On March 4, 2025, Aadi Bioscience, Inc. (the “ Company ”) consummated its previously announced private placement (the “ PIPE Financing ”). At the closing of the PIPE Financing, the Company entered into a Registration Rights Agreement (the “ Registration Rights Agreement ”) with the purchasers in the PIPE Financing. Pursuant to the Registration Rights Agreement, the Company will prepare and file a resale registration sta…

Entry into a Material Definitive Agreement. Stock Purchase Agreement On December 19, 2024, Aadi Bioscience, Inc. (“Aadi”) entered into a Stock Purchase Agreement (the “Purchase Agreement”) with KAKEN INVESTMENTS INC., a Delaware corporation (“Purchaser”), KAKEN PHARMACEUTICAL CO., LTD (“Guarantor”), and Aadi Subsidiary, Inc., a Delaware corporation and wholly owned subsidiary of Aadi (“Private Aadi”). The Purchase Agreement provides that, on the terms and subject to the conditions set forth i…

Unregistered Sales of Equity Securities The information in

Director — Baiteng Zhao, Ph.D.: Dr. Baiteng Zhao was appointed to the Board of Directors.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

The company approved a retention bonus program for certain employees, including executive officers.

Chief Medical Officer, Executive Chairman — Loretta Itri, Neil Desai: Both Loretta Itri and Neil Desai are leaving their respective roles with the company.

Costs Associated with Exit or Disposal Activities. On August 16, 2024, the Board of Directors (the “Board”) of Aadi Bioscience, Inc. (the “Company”) approved a plan of termination that will result in a workforce reduction of 22 employees, representing approximately 32% of the Company’s workforce. The Company estimates that it will incur non-recurring charges of approximately $2.2 to $2.5 million in connection with the workforce reduction, primarily consisting of severance payments, employee b…

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Entry into a Material Definitive Agreement. On April 1, 2024, Aadi Bioscience, Inc. (the “Company”) entered into Amendment No.2 (the “Amendment”) to the Negotiated Purchase Order Terms and Conditions for Clinical and Commercial Product (the “Agreement”) with Fresenius Kabi, LLC (“Fresenius Kabi”). The Amendment is effective as of March 31, 2024. Pursuant to the Amendment, among other things, the term of the Agreement is extended until July 31, 2024 (or such later date as may be agreed upon be…

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

and Item 9.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

President and Chief Executive Officer — David J. Lennon, Ph.D.: Dr. Lennon was appointed as the new President and CEO from an external position.