Yvonne Greenstreet is CEO at ALNYLAM PHARMACEUTICALS, INC. (ALNY). They have made 24 open-market trades across 1 company since 2018, most recently 2026-09-19.
CIK 0001446125
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 24 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ALNY | 95,802 | $15.4M |
| PCRX | 13,247 | $483K |
| MC | 1,156 | $71K |
| Total | $16.0M |
Shares reported on the most recent Form 4, priced at the 2026-09-22 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 |
|---|---|---|---|---|---|---|---|---|
| ALNY | SELL | 2026-03-04 | 2026-03-06 | $323.08 | $948K | -0.8% | +4.1% | -4.3% |
| ALNY | SELL | 2026-03-02 | 2026-03-04 | $327.65 | $2.2M | -1.5% | +2.1% | -11.6% |
| ALNY | SELL | 2026-02-13 | 2026-02-17 | $310.08 | $2.2M | +1.2% | -5.4% | -13.0% |
| ALNY | SELL | 2026-01-12 | 2026-01-14 | $362.86 | $3.5M | -3.7% | -14.7% | -7.9% |
| ALNY | SELL · 10b5-1 | 2025-11-12 | 2025-11-14 | $452.75 | $23.2M | -0.9% | -12.8% | -31.3% |
| ALNY | SELL | 2025-10-02 | 2025-10-03 | $452.05 | $8.1M | +2.5% | -5.4% | -12.8% |
| ALNY | SELL | 2025-08-18 | 2025-08-19 | $453.37 | $6.1M | -2.8% | -1.6% | +0.3% |
| ALNY | SELL · 10b5-1 | 2025-05-30 | 2025-06-03 | $305.00 | $15.5M | +1.6% | +9.5% | +47.4% |
| ALNY | SELL | 2025-03-03 | 2025-03-05 | $243.77 | $1.9M | +3.5% | -3.6% | +24.2% |
| ALNY | SELL | 2025-02-28 | 2025-03-03 | $241.97 | $1.3M | +0.3% | +10.7% | +27.0% |
| ALNY | SELL | 2025-02-14 | 2025-02-18 | $254.65 | $429K | -1.4% | +1.3% | +16.7% |
| ALNY | SELL | 2024-11-26 | 2024-11-27 | $250.97 | $2.5M | +1.3% | -5.0% | -2.2% |
| ALNY | SELL · 10b5-1 | 2024-08-20 | 2024-08-22 | $280.00 | $4.2M | -9.0% | -2.3% | -10.6% |
| ALNY | SELL · 10b5-1 | 2024-08-01 | 2024-08-02 | $270.00 | $4.1M | +2.7% | -0.9% | +4.1% |
| ALNY | SELL · 10b5-1 | 2024-07-11 | 2024-07-12 | $261.00 | $1.9M | -9.0% | +4.0% | +7.3% |
| ALNY | SELL | 2024-06-25 | 2024-06-26 | $231.10 | $3.8M | +4.0% | -4.1% | +10.6% |
| ALNY | SELL | 2024-02-28 | 2024-02-29 | $155.27 | $896K | -2.8% | +1.6% | -2.6% |
| ALNY | SELL | 2024-02-16 | 2024-02-20 | $148.19 | $1.7M | +1.5% | -2.5% | -0.0% |
| ALNY | SELL | 2023-08-04 | 2023-08-07 | $185.74 | $1.4M | -0.4% | +9.2% | -9.4% |
| ALNY | SELL | 2023-04-27 | 2023-04-28 | $194.59 | $3.0M | +6.1% | -6.2% | -2.0% |
| ALNY | SELL | 2021-08-06 | 2021-08-09 | $199.00 | $10.6M | -2.5% | -7.7% | -6.9% |
| ALNY | SELL | 2021-01-12 | 2021-01-13 | $161.00 | $503K | +0.1% | -7.0% | -19.8% |
| ALNY | SELL | 2020-07-10 | 2020-07-14 | $161.00 | $7.5M | -2.8% | -12.7% | -6.7% |
| ALNY | SELL | 2020-07-09 | 2020-07-10 | $161.00 | $1.8M | -2.9% | -14.8% | -10.2% |
| ALNY | SELL | 2020-05-05 | 2020-05-07 | $148.65 | $8.6M | -0.1% | -8.5% | +5.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.