Waystar Holding Corp: Chief product & ai officer Chan William sold 9,560 shares

What happened The filing shows Chan William, Chief product & ai officer, disposed of 9,560 shares at $26.07 on Oct 5, 2026 for $249,229. The transaction is coded F (payment of exercise price or tax liability) and is described as shares withheld to cover taxes on RSU vesting.

Key details

• Transaction date and price: Oct 5, 2026 — 9,560 shares at $26.07 each, total $249,229.
• Filing date: Oct 6, 2026 (reporting period Oct 5, 2026).
• Transaction code: F (payment of exercise price or tax liability / tax withholding).
• Shares owned following the transaction: not specified in the filing.
• Footnote F1: the shares were withheld to pay taxes upon vesting of restricted stock units granted on Oct 2, 2025; the number withheld was based on the actual sale price of shares sold on Oct 5, 2026 pursuant to a "sell-to-cover" transaction.
• Footnote F2: includes unvested RSUs.
• The filing does not indicate it was late.

Why it may matter The filing indicates this was a sell-to-cover tax withholding tied to RSU vesting, not a separate open-market discretionary sale. The filing does not show why the insider traded or why the company acted.