All stock lists
Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY)
US · Delayed Price · Currency is USD
Also listed: 0HD2.L, DUL.DEHealthcare · Biotechnology
227.66+3.63 (+1.62%)
Insider Score
––Not scored
ALNY Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
ALNY Stock Insider Trading Activity
ALNY stock’s insider trading shows 6 sales on the open market for an estimated $1.54M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| SUPRAN BRYAN Other | Sell | 1,758 | $226.88 | $398.86K | 12.1% | 12,807 | Oct 2, 2026 | — | Form 4 |
| Greenstreet Yvonne CEO | Award | 107 | — | — | 0.1% | 95,802 | Sep 19, 2026 | — | Form 4 |
| PYOTT DAVID E I Director | Sell | 1,175 | $298.91 | $351.22K | 26.2% | 3,316 | Jun 1, 2026 | — | Form 4 |
| PYOTT DAVID E I Director | Sell | 17 | $302.65 | $5.15K | 1.1% | 1,582 | Jun 1, 2026 | — | Form 4 |
| PYOTT DAVID E I Director | Sell | 921 | $297.71 | $274.19K | 17.0% | 4,491 | Jun 1, 2026 | — | Form 4 |
| PYOTT DAVID E I Director | Sell | 495 | $300.72 | $148.86K | 23.6% | 1,599 | Jun 1, 2026 | — | Form 4 |
| PYOTT DAVID E I Director | Option exercise | 3,830 | — | — | 242% | 5,412 | Jun 1, 2026 | — | Form 4 |
| PYOTT DAVID E I Director | Sell | 1,222 | $299.87 | $366.44K | 36.9% | 2,094 | Jun 1, 2026 | — | Form 4 |
| Sigal Charles Elliott Director | Award | 671 | — | — | 86.6% | 1,446 | May 20, 2026 | — | Form 4 |
| SCHULMAN AMY W Director | Award | 838 | — | — | 3.6% | 24,049 | May 20, 2026 | — | Form 4 |
| Reitan Colleen F Director | Award | 671 | — | — | 86.6% | 1,446 | May 20, 2026 | — | Form 4 |
| PYOTT DAVID E I Director | Award | 671 | — | — | 73.7% | 1,582 | May 20, 2026 | — | Form 4 |
| KELLOGG PETER N Director | Award | 671 | — | — | 86.6% | 1,446 | May 20, 2026 | — | Form 4 |
| HAMBURG MARGARET A Director | Award | 671 | — | — | 73.7% | 1,582 | May 20, 2026 | — | Form 4 |
| BRANDICOURT OLIVIER Director | Award | 671 | — | — | 86.6% | 1,446 | May 20, 2026 | — | Form 4 |
| Ausiello Dennis A Director | Award | 671 | — | — | 73.7% | 1,582 | May 20, 2026 | — | Form 4 |
| Arbuckle Stuart A Director | Award | 671 | — | — | New | 671 | May 20, 2026 | — | Form 4 |
| SCHULMAN AMY W Director | Option exercise | 11,250 | $70.20 | $789.75K | 94.1% | 23,211 | May 13, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 199 | $333.94 | $66.45K | 2.1% | 9,443 | Apr 6, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 293 | $331.89 | $97.24K | 2.9% | 9,642 | Apr 6, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 829 | $330.46 | $273.95K | 7.7% | 9,935 | Apr 6, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 909 | $329.76 | $299.75K | 7.8% | 10,764 | Apr 6, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 56 | $320.14 | $17.93K | 0.5% | 11,673 | Apr 6, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 209 | $318.47 | $66.56K | 1.6% | 12,520 | Apr 2, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 265 | $316.61 | $83.90K | 2.0% | 13,088 | Apr 2, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 359 | $317.44 | $113.96K | 2.7% | 12,729 | Apr 2, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 8 | $325.49 | $2.60K | 0.1% | 11,729 | Apr 2, 2026 | — | Form 4 |
| McLaughlin Melissa Other | Sell | 81 | $323.64 | $26.21K | 0.7% | 11,737 | Apr 2, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.