Company: WHWK
Filing Date: 2025-01-31
Form Type: DEFM14A
Source: 0001193125-25-018470
Chunk: 756

Company: Whitehawk Therapeutics, Inc.
Filing Date: 2025-01-31
Form: DEFM14A
Chunk 756
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|                                   |     | Authorized Signatory |

[Signature Page to Subscription Agreement] D-35

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above written.

| PURCHASER:                |     |                      |
| Averill Master Fund, Ltd. |     |                      |
| By:                       |     | /s/ Andrew Nathanson |
|                           |     | Andrew Nathanson     |
|                           |     | Authorized Signatory |

[Signature Page to Subscription Agreement] D-36

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above written.

| PURCHASER:                       |     |                                  |
| AVICENNA LIFE SCI MASTER FUND LP |     |                                  |
| By:                              |     | /s/ Khalil Barrage               |
|                                  |     | Khalil Barrage                   |
|                                  |     | President of the General Partner |

[Signature Page to Subscription Agreement] D-37

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above written.

| PURCHASER:                   |     |                    |
| Avoro Life Sciences Fund LLC |     |                    |
| By:                          |     | /s/ Scott Epstein  |
|                              |     | Scott Epstein      |
|                              |     | Partner, COO & CCO |

[Signature Page to Subscription Agreement] D-38

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above written.

| PURCHASER:              |     |                    |
| Avoro Ventures Fund L.P |     |                    |
| By:                     |     | /s/ Scott Epstein  |
|                         |     | Scott Epstein      |
|                         |     | Partner, COO & CCO |

[Signature Page to Subscription Agreement] D-39

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above written.

| PURCHASER: |     |                |
| BRYAN BALL |     |                |
| By:        |     | /s/ Bryan Ball |
|            |     | Bryan Ball     |

[Signature Page to Subscription Agreement] D-40

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above