Company: WHWK
Filing Date: 2025-03-31
Form Type: S-3
Source: 0001193125-25-068942
Chunk: 23

Company: Whitehawk Therapeutics, Inc.
Filing Date: 2025-03-31
Form: S-3
Chunk 23
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 and transactions in which the broker-dealer solicits purchasers; |

| • |     | block trades in which the broker-dealer will attempt to sell the shares as agent, but may position and resell a 
 portion of the block as principal to facilitate the transaction;                                                |

| • |     | purchases by a broker-dealer as principal and resale by the broker-dealer for its account; |

| • |     | an exchange distribution in accordance with the rules of the applicable exchange; |

| • |     | privately negotiated transactions; |

| • |     | short sales effected after the date the registration statement of which this prospectus is a part is declared 
 effective by the SEC;                                                                                         |

| • |     | through the writing or settlement of options or other hedging transactions, whether through an options exchange 
 or otherwise;                                                                                                   |

| • |     | broker-dealers may agree with the selling stockholders to sell a specified number of such shares at a stipulated 
 price per share;                                                                                                 |

| • |     | a combination of any such methods of sale; and |

| • |     | any other method permitted by applicable law. |

The selling stockholders may, from time to time, pledge or grant a security interest in some or all of the shares of common stock owned by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell the shares of common stock, from time to time, under this prospectus, or under an amendment to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act of 1933, as amended (the “Securities Act”), amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus. The selling stockholders also may transfer the shares of common stock in other circumstances, in which case the transferees, pledgees or other successors in interest will be the selling stockholders for purposes of this prospectus. In connection with the sale of our common stock or interests therein, the selling stockholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the common stock in the course of hedging the positions they assume. The selling stockholders may also sell shares of our common stock short and deliver these securities to close out their short positions, or loan or pledge the common stock to broker-dealers that in turn