Daniel Patrick O'Day is CEO & Chairman at GILEAD SCIENCES, INC. (GILD). They have made 3 open-market trades across 1 company since 2025, most recently 2026-10-01.
CIK 0001638643
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 3 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| GILD | 566,683 | $88.5M |
Shares reported on the most recent Form 4, priced at the 2026-10-02 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GILD | SELL · 10b5-1 | 2026-10-01 | 2026-10-02 | $147.90 | $2.2M | +7.2% | — | — |
| GILD | SELL · 10b5-1 | 2026-08-03 | 2026-08-04 | $130.31 | $2.0M | +1.8% | +11.2% | — |
| GILD | SELL · 10b5-1 | 2026-07-01 | 2026-07-02 | $126.29 | $1.9M | -0.6% | -1.0% | +12.5% |
| GILD | SELL · 10b5-1 | 2026-06-01 | 2026-06-02 | $131.46 | $2.0M | -1.6% | +2.9% | +14.7% |
| GILD | SELL · 10b5-1 | 2026-04-28 | 2026-04-29 | $129.16 | $1.3M | +3.9% | +4.6% | +4.5% |
| GILD | SELL · 10b5-1 | 2026-03-27 | 2026-03-30 | $136.82 | $2.7M | +1.3% | -6.1% | -7.9% |
| GILD | SELL | 2026-02-27 | 2026-03-02 | $144.79 | $1.4M | -2.0% | -5.3% | -11.5% |
| GILD | SELL | 2026-02-05 | 2026-02-06 | $150.00 | $17.3M | -0.5% | -3.4% | -11.6% |
| GILD | SELL · 10b5-1 | 2026-01-28 | 2026-01-29 | $139.89 | $1.4M | +5.9% | +7.9% | -7.4% |
| GILD | SELL | 2026-01-23 | 2026-01-26 | $135.00 | $15.6M | +8.6% | +7.0% | -7.1% |
| GILD | SELL · 10b5-1 | 2025-12-29 | 2025-12-30 | $124.83 | $1.2M | -0.5% | +13.2% | +10.6% |
| GILD | SELL · 10b5-1 | 2025-11-28 | 2025-12-01 | $126.54 | $2.5M | -1.0% | -1.3% | +20.6% |
| GILD | SELL · 10b5-1 | 2025-10-28 | 2025-10-29 | $119.39 | $2.4M | -0.5% | +5.9% | +18.7% |
| GILD | SELL · 10b5-1 | 2025-09-29 | 2025-09-30 | $111.66 | $2.2M | +4.6% | +5.8% | +11.5% |
| GILD | SELL · 10b5-1 | 2025-08-28 | 2025-08-29 | $113.63 | $1.1M | +4.4% | -0.2% | +11.5% |
| GILD | SELL · 10b5-1 | 2025-07-28 | 2025-07-29 | $113.94 | $2.3M | +4.5% | -1.5% | +5.4% |
| GILD | SELL · 10b5-1 | 2025-06-30 | 2025-07-01 | $110.45 | $1.1M | +0.3% | +0.4% | +0.7% |
| GILD | SELL · 10b5-1 | 2025-05-30 | 2025-06-02 | $110.41 | $2.2M | +3.4% | +2.9% | +4.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.