Company: WHWK
Filing Date: 2025-04-28
Form Type: DEF 14A
Source: 0001628280-25-020311
Chunk: 3

Company: Whitehawk Therapeutics, Inc.
Filing Date: 2025-04-28
Form: DEF 14A
Chunk 3
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2025. Our proxy statement and Annual Report to the Stockholders are being made available on or about April 28, 2025 at www.proxyvote.com . We are providing access to our proxy materials over the Internet under the “notice and access” rules adopted by the Securities and Exchange Commission.

|                |     | By order of the Board of Directors, |
|                |     | /s/ David Lennon                    |
|                |     | David Lennon, Ph.D.                 |
|                |     | President & Chief Executive Officer |
| April 28, 2025 |     |                                     |

### TABLE OF CONTENTS
|                                                                                                       |     | Page |
| GENERAL INFORMATION                                                                                   |     |    1 |
| PROPOSAL ONE – ELECTION OF DIRECTORS                                                                  |     |    6 |
| CORPORATE GOVERNANCE                                                                                  |     |   11 |
| DIRECTOR COMPENSATION                                                                                 |     |   16 |
| EXECUTIVE COMPENSATION                                                                                |     |   18 |
| SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT                                        |     |   29 |
| CERTAIN RELATIONSHIPS AND RELATED-PERSON TRANSACTIONS, AND DIRECTOR INDEPENDENCE                      |     |   33 |
| PROPOSAL TWO–ADVISORY VOTE ON EXECUTIVE COMPENSATION                                                  |     |   35 |
| PROPOSAL THREE – RATIFICATION OF THE APPOINTMENT OF OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM |     |   36 |
| TRANSACTION OF OTHER BUSINESS                                                                         |     |   39 |
| ADDITIONAL INFORMATION                                                                                |     |   39 |

#### WHITEHAWK THERAPEUTICS, INC.

#### 2 Headquarters Plaza, East Building, 11th Floor

#### Morristown, New Jersey 07960

### PROXY STATEMENT

#### FOR THE 2025 ANNUAL MEETING OF STOCKHOLDERS

#### TO BE HELD ONLINE ON WEDNESDAY, JUNE 11, 2025
This proxy statement (“Proxy Statement”) is furnished in connection with the solicitation of proxies by the Board of Directors (the “Board”) of Whitehawk Therapeutics, Inc. (the “Company”) for use at the 2025 Annual Meeting of Stockholders of the Company and at any adjournments, postponements or continuations thereof (the “Annual Meeting”). The Annual Meeting will be held at 10