Person

Daniel Patrick O'Day

Chairman & CEO · Director, Gilead Sciences

Current S&P 500 boards
1
Current roles
1
Open-market buys
$0
Open-market sales
$83.1M

Current roles

From Section 16 filings (Forms 3, 4 and 5) in the last 13 months.

Past roles

“Last filing” is the latest Form 3/4/5 for that company, an upper bound on the end date.

None on record since 2016.

Sits alongside

People who currently share a board or management team with this person.

Open-market trades

Purchases and sales reported on Form 4 at S&P 500 companies.

DateCompanyTypeSharesPriceValue
Nov 5, 2026GILDSale9,810$175.17$1.7M
Nov 4, 2026GILDSale102,619$175.16$18.0M
Nov 2, 2026GILDSale1,600$167.40$268K
Nov 2, 2026GILDSale1,700$168.10$286K
Nov 2, 2026GILDSale1,904$169.27$322K
Nov 2, 2026GILDSale7,796$170.35$1.3M
Nov 2, 2026GILDSale2,000$171.06$342K
Oct 30, 2026GILDSale15,881$175.25$2.8M
Oct 1, 2026GILDSale12,000$147.72$1.8M
Oct 1, 2026GILDSale3,000$148.63$446K
Sep 1, 2026GILDSale1,600$147.51$236K
Sep 1, 2026GILDSale7,992$148.36$1.2M
Sep 1, 2026GILDSale5,408$149.38$808K
Aug 3, 2026GILDSale6,700$129.66$869K
Aug 3, 2026GILDSale600$131.34$79K
Aug 3, 2026GILDSale7,700$130.80$1.0M
Jul 1, 2026GILDSale11,900$126.09$1.5M
Jul 1, 2026GILDSale3,100$127.08$394K
Jun 1, 2026GILDSale10,900$131.10$1.4M
Jun 1, 2026GILDSale3,062$132.22$405K
Jun 1, 2026GILDSale1,038$132.97$138K
Apr 28, 2026GILDSale3,050$130.01$397K
Apr 28, 2026GILDSale6,950$128.79$895K
Mar 27, 2026GILDSale10,000$136.82$1.4M
Feb 27, 2026GILDSale3,481$144.04$501K
Feb 27, 2026GILDSale6,419$145.18$932K
Feb 27, 2026GILDSale100$145.71$15K
Feb 5, 2026GILDSale115,640$150.00$17.3M
Jan 28, 2026GILDSale4,968$140.24$697K
Jan 28, 2026GILDSale5,032$139.54$702K
Jan 23, 2026GILDSale115,640$135.00$15.6M
Dec 29, 2025GILDSale10,000$124.83$1.2M
Nov 28, 2025GILDSale6,788$126.84$861K
Nov 28, 2025GILDSale3,212$125.91$404K
Oct 28, 2025GILDSale2,022$118.82$240K
Oct 28, 2025GILDSale7,978$119.54$954K
Sep 29, 2025GILDSale8,039$111.47$896K
Sep 29, 2025GILDSale1,961$112.42$220K
Aug 28, 2025GILDSale10,000$113.63$1.1M
Jul 28, 2025GILDSale8,345$114.09$952K
Jul 28, 2025GILDSale1,655$113.17$187K
Jun 30, 2025GILDSale600$111.15$67K
Jun 30, 2025GILDSale9,400$110.40$1.0M
May 30, 2025GILDSale3,584$110.96$398K
May 30, 2025GILDSale6,416$110.11$706K

SEC reporting-owner ID (CIK) 1638643 · all filings on EDGAR

Daniel Patrick O'Day (GILD) | USBoard