Gilead Sciences CEO Daniel Patrick O’Day exercised Options for 8,780 shares on 2026-09-10, after which his reported share holding was 585,913. He also forfeited 4,230 shares at $144.81 per share, while his derivative-security holding after the option exercise was 83,300, giving investors updated ownership figures.

Key Highlights

  • Daniel Patrick O’Day forfeited 4,230 Gilead shares at $144.81 per share.
  • O’Day’s reported derivative-securities holding after the option exercise was 83,300.
  • The forfeiture represented about 0.7% of his prior shares holding.

GILEAD SCIENCES, INC. (NASDAQ: GILD) CEO Daniel Patrick O’Day exercised options for 8,780 shares on 10 September 2026, leaving him with 585,913 shares after the transaction. The filing also records a forfeiture of shares and an exercise involving derivative securities.

Gilead CEO Reports Forfeiture and Derivative Exercise

O’Day also forfeited 4,230 shares at $144.81 per share on the same date. His resulting derivative-securities holding was 83,300.

Transaction Percentages Use Separate Holding Bases

The share option exercise represented about 1.5% of O’Day’s resulting shares holding. The forfeiture represented about 0.7% of his prior shares holding, while the derivative-securities exercise represented about 9.5% of his prior derivative securities holding. The percentages therefore use separate reference points: resulting shares for the first measure, prior shares for the second, and prior derivative securities for the third. The reported figures distinguish common-share holdings from derivative securities.