Rigel (RIGL) EVP David A. Santos Withholds 874 Shares for Taxes

What Happened

• David A. Santos, EVP and Chief Commercial Officer of Rigel Pharmaceuticals (RIGL), had 874 shares disposed on 2026-09-01 as tax/payment withholding (transaction code F).
• The shares were recorded at $47.50 each for a total value of $41,515. This was a tax withholding/settlement of compensation-related shares, not an open-market sell.

Key Details

• Transaction date and price: 2026-09-01; 874 shares at $47.50 each.
• Total value of the disposal: $41,515.
• Filing date: Form 4 filed on 2026-09-03 (timely—filed two business days after the transaction).
• Shares owned after transaction: not specified in this filing.
• Footnote: F1 notes that 500 of the shares relate to shares acquired under the issuer’s stock purchase plan.
• Transaction code meaning: F indicates payment of exercise price or tax liability via share withholding (sell-to-cover/withholding), a routine administrative action.

Context

• Withholding to cover taxes is common after exercises or vesting and is generally administrative rather than a directional bet on the stock. It does not necessarily indicate insider sentiment.
• This was a disposition to satisfy tax obligations, not an open-market sale; therefore it’s less informative about the insider’s market view.