As of the latest Form 4 filed Jul 2, 2026.
What Gilead Sciences Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 48 most recent filings for GILD.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-02 | 2026-07-01 | O'Day Daniel Patrick Chairman & CEO | SSale | −3.10K | $127.08 | $394K | Yes (planned) | Form 4 ↗ |
| 2026-07-02 | 2026-07-01 | O'Day Daniel Patrick, Chairman & CEO | SSale | −11.9K | $126.09 | $1.50M | Yes (planned) | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Mercier Johanna Chief Comm & Corp Aff Officer | SSale | −450.00 | $125.40 | $56.4K | Yes (planned) | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Mercier Johanna, Chief Comm & Corp Aff Officer | SSale | −1.07K | $124.00 | $133K | Yes (planned) | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Mercier Johanna, Chief Comm & Corp Aff Officer | SSale | −1.48K | $123.42 | $183K | Yes (planned) | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Dickinson Andrew D Chief Financial Officer | SSale | −3.00K | $125.40 | $376K | Yes (planned) | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Cain Wettan Keeley M EVP Gen Counsel, Legal & Comp | FTax | −283.00 | $121.48 | $34.4K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Cain Wettan Keeley M, EVP Gen Counsel, Legal & Comp | MExercise | +589.00 | — | — | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Mercier Johanna Chief Comm & Corp Aff Officer | FTax | −1.34K | $121.48 | $163K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Mercier Johanna, Chief Comm & Corp Aff Officer | MExercise | +2.80K | — | — | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Berger Dietmar Chief Medical Officer | FTax | −263.00 | $121.48 | $31.9K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Berger Dietmar, Chief Medical Officer | MExercise | +533.00 | — | — | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | O'Day Daniel Patrick Chairman & CEO | FTax | −4.21K | $121.48 | $512K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | O'Day Daniel Patrick, Chairman & CEO | MExercise | +8.78K | — | — | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Dickinson Andrew D Chief Financial Officer | FTax | −1.34K | $121.48 | $163K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-10 | Dickinson Andrew D, Chief Financial Officer | MExercise | +2.80K | — | — | No | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | O'Day Daniel Patrick Chairman & CEO | SSale | −1.04K | $132.97 | $138K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | O'Day Daniel Patrick, Chairman & CEO | SSale | −3.06K | $132.22 | $405K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | O'Day Daniel Patrick, Chairman & CEO | SSale | −10.9K | $131.10 | $1.43M | Yes (planned) | Form 4 ↗ |
| 2026-05-18 | 2026-05-15 | Mercier Johanna Chief Comm & Corp Aff Officer | SSale | −700.00 | $132.75 | $92.9K | Yes (planned) | Form 4 ↗ |
| 2026-05-18 | 2026-05-15 | Mercier Johanna, Chief Comm & Corp Aff Officer | SSale | −8.37K | $132.23 | $1.11M | Yes (planned) | Form 4 ↗ |
| 2026-05-18 | 2026-05-15 | Mercier Johanna, Chief Comm & Corp Aff Officer | SSale | −11.2K | $131.19 | $1.47M | Yes (planned) | Form 4 ↗ |
| 2026-05-18 | 2026-05-15 | Mercier Johanna, Chief Comm & Corp Aff Officer | SSale | −7.75K | $130.29 | $1.01M | Yes (planned) | Form 4 ↗ |
| 2026-05-18 | 2026-05-15 | Mercier Johanna, Chief Comm & Corp Aff Officer | MExercise | +25.0K | $66.64 | $1.67M | Yes (planned) | Form 4 ↗ |
| 2026-05-18 | 2026-05-15 | Dickinson Andrew D Chief Financial Officer | SSale | −3.00K | $132.27 | $397K | Yes (planned) | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Horning Sandra Director | AAward | +1.15K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | MANWANI HARISH Director | FTax | −224.00 | $130.84 | $29.3K | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | MANWANI HARISH, Director | AAward | +1.15K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Rodriguez Javier Director | AAward | +1.15K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | WELTERS ANTHONY Director | AAward | +1.15K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | LOVE TED W Director | AAward | +1.15K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | BARTON JACQUELINE K Director | AAward | +1.15K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Bluestone Jeffrey Director | AAward | +1.15K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | O'Day Daniel Patrick Chairman & CEO | SSale | −3.05K | $130.01 | $397K | Yes (planned) | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | O'Day Daniel Patrick, Chairman & CEO | SSale | −6.95K | $128.79 | $895K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-15 | Mercier Johanna Chief Comm & Corp Aff Officer | SSale | −3.00K | $140.96 | $423K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-15 | Dickinson Andrew D Chief Financial Officer | SSale | −3.00K | $140.96 | $423K | Yes (planned) | Form 4 ↗ |
| 2026-03-30 | 2026-03-27 | O'Day Daniel Patrick Chairman & CEO | SSale | −10.0K | $136.82 | $1.37M | Yes (planned) | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Cain Wettan Keeley M EVP Gen Counsel, Legal & Comp | FTax | −606.00 | $148.56 | $90.0K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Cain Wettan Keeley M, EVP Gen Counsel, Legal & Comp | MExercise | +1.25K | — | — | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Mercier Johanna Chief Comm & Corp Aff Officer | FTax | −3.22K | $148.56 | $478K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Mercier Johanna, Chief Comm & Corp Aff Officer | MExercise | +6.62K | — | — | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Berger Dietmar Chief Medical Officer | FTax | −1.06K | $148.56 | $158K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Berger Dietmar, Chief Medical Officer | MExercise | +2.13K | — | — | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | O'Day Daniel Patrick Chairman & CEO | FTax | −9.77K | $148.56 | $1.45M | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | O'Day Daniel Patrick, Chairman & CEO | MExercise | +20.0K | — | — | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Dickinson Andrew D Chief Financial Officer | FTax | −3.15K | $148.56 | $468K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-10 | Dickinson Andrew D, Chief Financial Officer | MExercise | +6.47K | — | — | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also GILD’s full analysis or the market-wide insider trading feed. The tabs above jump to GILD’s other SEC data.
Source: SEC Form 4 filings for GILD, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.