ALNY insider buying – Alnylam Pharmaceuticals, Inc.
9 insider purchases since 2016 worth $38.2M by 8 different insiders. Last 12 months: 2 purchases, $543,126. Most recent filing: 2026-11-12.
Large company Public float $42.6B (latest 10-K, SEC).
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits. 6 older purchases (before the 5-year window) are listed in the table below.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| Sanofi 10% Owner | $35.7M 2× · 502,531 sh | 2016-02-01 2017-05-31 | – | 10,554,134 shares as of 2017-06-01 | Holds - never sold |
| PYOTT DAVID E I Director | $1.0M 1× · 27,900 sh | 2016-10-13 2016-10-13 | 3× · $10.5M last 2026-06-01 | 29,994 shares as of 2026-06-03 | Sold part |
| KEATING LAURIE Officer | $751,525 1× · 11,500 sh | 2017-05-30 2017-05-30 | 14× · $30.7M last 2021-08-05 | 5,566 shares as of 2021-08-09 | Sold part |
| SCHULMAN AMY W Director | $299,526 1× · 1,910 sh | 2026-11-09 2026-11-09 | 2× · $5.3M last 2024-06-25 | – | Holds (sold earlier) |
| Sigal Charles Elliott Director | $243,600 1× · 1,600 sh | 2026-11-10 2026-11-10 | – | – | Holds - never sold |
| BONNEY MICHAEL W Director | $116,720 1× · 2,000 sh | 2016-03-09 2016-03-09 | 4× · $15.2M last 2025-08-18 | 32,054 shares as of 2025-08-19 | Sold part |
| Gros David-Alexandre C Officer | $62,749 1× · 1,000 sh | 2016-02-22 2016-02-22 | – | 1,000 shares as of 2016-02-24 | Holds - never sold |
| Reitan Colleen F Director | $10,363 1× · 36 sh | 2024-08-29 2024-08-29 | 1× · $8.4M last 2025-09-09 | 1,446 shares as of 2026-05-22 | Sold part |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 2 | $543,126 | 2 | 22 | $25.8M |
| 2025 | 1 | $10,363 | 1 | 35 | $109.9M |
| 2024 | 0 | – | – | 27 | $47.2M |
| 2023 | 0 | – | – | 15 | $27.2M |
| 2022 | 0 | – | – | 6 | $20.8M |
| 2021 | 0 | – | – | 15 | $46.7M |
| 2020 | 0 | – | – | 24 | $86.8M |
| 2019 | 0 | – | – | 7 | $23.8M |
| 2018 | 0 | – | – | 14 | $45.3M |
| 2017 | 2 | $22.1M | 2 | 13 | $54.6M |
| 2016 | 4 | $15.5M | 4 | 5 | $8.8M |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-11-12 | SCHULMAN AMY W | Director | 1,910 | $156.82 | $299,526 | +8% | SEC |
| 2026-11-12 | Sigal Charles Elliott | Director | 1,600 | $152.25 | $243,600 | +80% | SEC |
| 2025-05-12 | Reitan Colleen F | Director | 36 | $287.85 | $10,363 | SEC | |
| 2017-06-01 | Sanofi | 10% Owner | 297,501 | $71.87 | $21.4M | +2.9% | SEC |
| 2017-05-31 | KEATING LAURIE | Officer | 11,500 | $65.35 | $751,525 | SEC | |
| 2016-10-14 | PYOTT DAVID E I | Director | 27,900 | $37.00 | $1.0M | SEC | |
| 2016-03-10 | BONNEY MICHAEL W | Director | 2,000 | $58.36 | $116,720 | +100.0% | SEC |
| 2016-02-24 | Gros David-Alexandre C | Officer | 1,000 | $62.75 | $62,749 | SEC | |
| 2016-02-03 | Sanofi | 10% Owner | 205,030 | $69.75 | $14.3M | +2.0% | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-03 | PYOTT DAVID E I | Director | 3,830 | $299.18 | $1.1M | Pre-planned (10b5-1) | SEC |
| 2026-04-07 | McLaughlin Melissa | Officer | 3,910 | $325.92 | $1.3M | Pre-planned (10b5-1) | SEC |
| 2026-03-06 | Tanguler Tolga | Officer | 2,309 | $323.08 | $745,984 | Sale | SEC |
| 2026-03-06 | Poulton Jeffrey V. | CFO | 2,468 | $323.08 | $797,351 | Sale | SEC |
| 2026-03-06 | Greenstreet Yvonne | CEO | 2,933 | $323.08 | $947,581 | Sale | SEC |
| 2026-03-06 | Garg Pushkal | Officer | 4,713 | $323.53 | $1.5M | Pre-planned (10b5-1) | SEC |
| 2026-03-06 | Fitzgerald Kevin Joseph | Officer | 1,291 | $323.54 | $417,685 | Pre-planned (10b5-1) | SEC |
| 2026-03-04 | Tanguler Tolga | Officer | 1,598 | $327.65 | $523,584 | Sale | SEC |
| 2026-03-04 | Poulton Jeffrey V. | CFO | 2,206 | $327.65 | $722,801 | Sale | SEC |
| 2026-03-04 | Greenstreet Yvonne | CEO | 6,799 | $327.65 | $2.2M | Sale | SEC |
| 2026-03-04 | Garg Pushkal | Officer | 3,492 | $323.63 | $1.1M | Pre-planned (10b5-1) | SEC |
| 2026-03-04 | Fitzgerald Kevin Joseph | Officer | 3,250 | $323.62 | $1.1M | Pre-planned (10b5-1) | SEC |
| 2026-03-02 | Garg Pushkal | Officer | 4,627 | $331.34 | $1.5M | Pre-planned (10b5-1) | SEC |
| 2026-02-17 | Tanguler Tolga | Officer | 1,959 | $310.08 | $607,447 | Sale | SEC |
| 2026-02-17 | Poulton Jeffrey V. | CFO | 2,242 | $310.08 | $695,199 | Sale | SEC |
Showing the latest 15 of 183 sales of $50,000+ since 2016.
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
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