Coastlands Capital LP and Affiliates Report 5.98% Ownership in Whitehawk Therapeutics, Inc.

Coastlands Capital LP, along with its affiliates Coastlands Capital Partners LP, Coastlands Capital GP LLC, Coastlands Capital LLC, and Matthew D. Perry, have reported a 5.98% ownership in Whitehawk Therapeutics, Inc. The ownership is based on 2,819,215 shares of common stock, calculated from the 47,128,362 shares outstanding as of August 4, 2025. The filing is made jointly but not as a group, with each entity disclaiming beneficial ownership except to the extent of their pecuniary interest. The Partnership holds the common stock for the benefit of its investors and has the right to receive dividends or proceeds from the sale of the stock. The filing is made under Rule 13d-1(b) and Rule 13d-1(c).