Akshay Vaishnaw is President at ALNYLAM PHARMACEUTICALS, INC. (ALNY). They have made 18 open-market trades across 2 companies since 2012, most recently 2026-04-16.
CIK 0001458494
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 18 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SRRK | 630,542 | $25.2M |
| ALNY | 22,972 | $5.3M |
| Total | $30.5M |
Shares reported on the most recent Form 4, priced at the 2026-04-20 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 |
|---|---|---|---|---|---|---|---|---|
| SRRK | SELL | 2026-04-16 | 2026-04-20 | $49.57 | $607K | -2.8% | +0.8% | +5.5% |
| SRRK | SELL | 2026-01-13 | 2026-01-15 | $42.70 | $873K | -6.5% | +0.7% | +7.0% |
| SRRK | SELL · 10b5-1 | 2025-05-29 | 2025-05-30 | $29.68 | $353K | +13.7% | +22.0% | +14.6% |
| 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 | $194.53 | $839K | +6.1% | -6.2% | -2.0% |
| ALNY | SELL | 2023-02-10 | 2023-02-14 | $215.97 | $16.4M | -14.8% | -15.0% | -7.5% |
| ALNY | SELL | 2021-12-23 | 2021-12-23 | $191.33 | $609K | -18.4% | -28.1% | -14.6% |
| ALNY | SELL | 2021-08-09 | 2021-08-11 | $200.00 | $2.2M | -2.5% | -6.9% | -9.6% |
| ALNY | SELL | 2021-06-18 | 2021-06-22 | $175.00 | $2.6M | -0.2% | +5.8% | +6.8% |
| ALNY | SELL | 2021-04-19 | 2021-04-21 | $137.37 | $1.7M | -0.8% | +2.6% | +34.2% |
| ALNY | SELL | 2020-09-29 | 2020-10-01 | $140.00 | $136K | +3.4% | -11.9% | -7.6% |
| ALNY | SELL | 2020-06-22 | 2020-06-24 | $151.36 | $197K | +5.8% | +1.2% | -11.6% |
| ALNY | SELL | 2020-04-20 | 2020-04-22 | $140.00 | $3.1M | -2.3% | +0.5% | +13.0% |
| ALNY | SELL | 2020-02-07 | 2020-02-11 | $125.00 | $3.0M | -5.6% | -28.1% | +10.0% |
| ALNY | SELL | 2018-03-14 | 2018-03-16 | $143.23 | $23.2M | -9.7% | -33.3% | -25.5% |
| ALNY | SELL | 2017-10-30 | 2017-11-01 | $121.48 | $8.1M | +6.4% | +13.2% | +8.2% |
| ALNY | SELL | 2017-05-23 | 2017-05-25 | $75.00 | $825K | +3.4% | +19.7% | +22.4% |
| ALNY | SELL | 2017-05-15 | 2017-05-17 | $65.00 | $2.8M | -9.0% | +8.0% | +14.1% |
| ALNY | SELL | 2016-11-30 | 2016-12-02 | $44.95 | $2.6M | +3.5% | -7.4% | +21.0% |
| ALNY | SELL · 10b5-1 | 2015-06-16 | 2015-06-18 | $128.83 | $1.1M | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2015-03-17 | 2015-03-19 | $116.86 | $1.0M | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2014-12-16 | 2014-12-16 | $93.60 | $995K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2014-09-16 | 2014-09-17 | $72.05 | $766K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2014-06-17 | 2014-06-19 | $69.82 | $742K | -18.4% | +0.9% | +0.9% |
| ALNY | SELL · 10b5-1 | 2014-03-18 | 2014-03-20 | $73.95 | $2.4M | -18.4% | +0.9% | +0.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.