Company: WHWK
Filing Date: 2025-01-31
Form Type: DEFM14A
Source: 0001193125-25-018470
Chunk: 536

Company: Whitehawk Therapeutics, Inc.
Filing Date: 2025-01-31
Form: DEFM14A
Chunk 536
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 under the 2021 ESPP. Black-Scholes models require the input of various assumptions, including the expected life, expected dividend yield, price volatility and risk-free interest rate of the underlying stock. The expected volatility used in calculating the estimated fair value for purchases under the 2021 ESPP is based on the historical volatility of the Company’s common stock. The calculation was based on the following assumptions:

|                          |     | Three and Nine Months Ended 
          September 30, 2024 |     | Three and Nine Months Ended 
          September 30, 2023 |
|:-------------------------|:----|----------------------------:|:----|----------------------------:|
| Strike price (per share) |     |               $1.56 - $4.00 |     |              $5.98 - $11.40 |
| Risk-free interest rate  |     |               5.40% - 5.41% |     |               4.40% - 5.24% |
| Expected volatility      |     |            60.99% - 140.00% |     |           105.68% - 176.11% |
| Expected term (in years) |     |                         0.5 |     |                         0.5 |

F-55

As of September 30, 2024, and December 31, 2023, 844,059 and 659,146 shares of common stock were
available for issuance under the 2021 ESPP, respectively. The Company had an outstanding liability of $0.1 million and $0.1 million as of September 30, 2024, and December 31, 2023, respectively, which will be recognized over six
months. As of September 30, 2024 and December 31, 2023, 60,629 and 77,565 shares were issued under the 2021 ESPP, respectively.

11. Income Taxes

The Company recorded no income tax expense for the three months ended September 30, 2024 and 2023. The Company recorded no income tax
expense for the nine months ended September 30, 2024 and 2023. The Company continues to maintain a full valuation allowance.

12. Commitments and Contingencies

Litigation

From time to
time, the Company could be subject to various legal proceedings and claims that arise in the ordinary course of its business activities. Regardless of the