BALL BRYAN 4

What Happened
Bryan Ball, Chief Technical Operations Officer and SVP, Manufacturing Operations at Whitehawk Therapeutics (WHWK), sold a total of 56,596 shares in two broker-assisted transactions tied to tax withholding for vested restricted stock units. On 2026-04-09 he sold 50,000 shares at $3.57 each for $178,500, and on 2026-04-10 he sold 6,596 shares at $3.43 each for $22,624 — total proceeds about $201,124. These were sales to satisfy tax withholding (routine) rather than open-market buys.

Key Details

• Transaction dates and prices:
  • 2026-04-09: 50,000 shares sold @ $3.57 = $178,500
  • 2026-04-10: 6,596 shares sold @ $3.43 = $22,624
• Total shares sold: 56,596; total proceeds ≈ $201,124.
• Sale type: Broker-assisted sale to satisfy tax withholding related to RSU vesting (footnote F1).
• Filing: Form 4 filed 2026-04-13; appears to be filed within the SEC two-business-day window for these transactions (timely).
• Shares owned after transaction: Not disclosed in the provided filing excerpt.
• No 10b5-1 plan or other trading plan is indicated in the provided details.

Context
These transactions were tax-withholding sales associated with restricted stock unit vesting, a common administrative sell-to-cover and not a straightforward market-driven sale. Such transactions typically do not signal executive sentiment about the company’s outlook.