BALL BRYAN 4

What Happened
Bryan Ball, Chief Technical Operations Officer and SVP, Manufacturing Operations at Whitehawk Therapeutics (WHWK), reported sales totaling 118,849 shares in two transactions. On April 13, 2026 he sold 26,389 shares at $3.46 for proceeds of $91,306, and on April 14, 2026 he sold 92,460 shares at $3.64 for proceeds of $336,554 — combined proceeds ≈ $427,860. These were sales (not purchases), and the filing indicates they were executed to satisfy tax withholding related to the vesting of restricted stock units.

Key Details

• Transaction types: Sales (open market or broker-assisted) on 2026-04-13 and 2026-04-14
• Prices and amounts: 26,389 shares @ $3.46 ($91,306) and 92,460 shares @ $3.64 ($336,554)
• Total shares sold: 118,849; total proceeds ≈ $427,860
• Footnote: Broker-assisted sale to satisfy the reporting person's tax withholding obligations in connection with the vesting of restricted stock units (RSUs).
• Shares owned after transaction: Not specified in the summary filing.
• Filing: Form 4 filed April 15, 2026 (no late filing flag indicated in the provided data).

Context
Sales that are executed solely to cover tax withholding on vested RSUs are routine and not necessarily a signal about an insider’s outlook on the company. This report documents disposition of vested equity rather than an open-market purchase or an active investment increase by the insider.