Alnylam Pharmaceuticals ($ALNY) Insider Trading & Smart Money Activity
Alnylam Pharmaceuticals, Inc. ($ALNY) has 1 insider trade, 1 congress trade, 74 13F position changes and 5 analyst ratings on file. In the last 12 months on the open market, no insider bought and 1 insider sold ($398.86K), net -$398.86K.
- Insider buyers (12 mo)
- 0
- Insider sellers (12 mo)
- 1
- Net insider $ (12 mo)
- -$398.86K
- Congress trades (12 mo)
- 1
- 13F moves on file
- 74
- Analyst ratings on file
- 5
ALNY insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 2 |
| Q2 2026 | 0 | 0 | 0 / 0 | 53 / 18 |
| Q3 2026 | 0 | 0 | 0 / 1 | 0 / 0 |
| Q4 2026 | 0 | 1 · $398.86K | 0 / 0 | 1 / 0 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All ALNY insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 13F | Portman Square Capital | Added | +3.62K sh | $7.07M | — | ||||||
| Analyst | Citigroup | Reiterates to Buy | PT $320 | Read | |||||||
| Analyst | RBC Capital | Reiterates to Outperform | PT $345 | +4.2% | — | ||||||
| Insider | Bryan SupranEVP, CLO and Secretary | Sell (Open-market sale) | 1.76K sh | $398.86K | +5.9% | — | |||||
| Analyst | JP Morgan | Reiterates to Overweight | PT $369 | -9.1% | — | ||||||
| Analyst | HC Wainwright | Reiterates to Buy | PT $455 | +4.5% | — | ||||||
| Congress | Cory A. Booker | Sale | $1,001 - $15,000 | +3.3% | +11.9% | — | |||||
| Analyst | HC Wainwright | Reiterates to buy | PT $470 | +6.7% | -2.4% | Read | |||||
| 13F | Bank of America | Added | +281.74K sh | $288.24M | +3.2% | -1.2% | Read | ||||
| 13F | Bank of America | Added | +281.74K sh | $280.87M | +3.2% | -1.2% | Read | ||||
| 13F | Woodline Partners | Added | +242.12K sh | $72.70M | +3.6% | +0.3% | — | ||||
| 13F | Two Sigma Investments | Added | +1.38M sh | $593.99M | +3.6% | +0.3% | — | ||||
| 13F | Two Sigma Investments | Added | +1.38M sh | $578.80M | +3.6% | +0.3% | — | ||||
| 13F | T. Rowe Price Investment Management | Added | +3.44M sh | $1.55B | +3.6% | +0.3% | — | ||||
| 13F | T. Rowe Price Investment Management | Added | +3.44M sh | $1.51B | +3.6% | +0.3% | — | ||||
| 13F | State Street | Added | +93.74K sh | $990.50M | +3.6% | +0.3% | — | ||||
| 13F | State Street | Added | +93.74K sh | $965.18M | +3.6% | +0.3% | — | ||||
| 13F | Squarepoint Ops | Added | +75.75K sh | $127.21M | +3.6% | +0.3% | — | ||||
| 13F | Squarepoint Ops | Added | +75.75K sh | $123.95M | +3.6% | +0.3% | — | ||||
| 13F | Schonfeld Strategic Advisors | Added | +26.87K sh | $21.39M | +3.6% | +0.3% | Read | ||||
| 13F | Royal Bank of Canada | Added | +200.02K sh | $235.95M | +3.6% | +0.3% | — | ||||
| 13F | Royal Bank of Canada | Added | +200.02K sh | $229.92M | +3.6% | +0.3% | — | ||||
| 13F | Qube Research & Technologies | Added | +63.51K sh | $249.86M | +3.6% | +0.3% | — | ||||
| 13F | Qube Research & Technologies | Added | +63.51K sh | $243.48M | +3.6% | +0.3% | — | ||||
| 13F | Price T Rowe Associates | Reduced | -270.08K sh | $427.10M | +3.6% | +0.3% | Read | ||||
| 13F | Price T Rowe Associates | Reduced | -270.08K sh | $434.19M | +3.6% | +0.3% | — | ||||
| 13F | Osaic Holdings | Added | +1.94K sh | $13.91M | +3.6% | +0.3% | — | ||||
| 13F | Osaic Holdings | Added | +1.94K sh | $13.55M | +3.6% | +0.3% | — | ||||
| 13F | Millennium Management | Added | +372.46K sh | $133.52M | +3.6% | +0.3% | — | ||||
| 13F | Millennium Management | Added | +372.46K sh | $130.10M | +3.6% | +0.3% | — | ||||
| 13F | Marshall Wace | Added | +549.40K sh | $327.71M | +3.6% | +0.3% | — | ||||
| 13F | Marshall Wace | Added | +549.40K sh | $319.33M | +3.6% | +0.3% | — |
Showing 32 of 81 filings (the latest 13F moves are capped at 25; see the institutions below).
1W / 1M / 6M = how ALNY moved from the trade or filing date.
Insider trading in ALNY: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Bryan Supran | EVP, CLO and Secretary | 1 | -$398.86K | Oct 2, 2026 |
Members of Congress trading ALNY
Institutions moving ALNY (13F)
Analyst ratings on ALNY
Frequently asked questions
Are ALNY insiders buying or selling?
Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 1 insider made 1 open-market sale worth $398.86K, a net -$398.86K.
What is the latest insider trade in ALNY?
Bryan Supran, EVP, CLO and Secretary filed a sell (open-market sale) of 1.76K sh worth $398.86K on Oct 2, 2026.
Which members of Congress traded ALNY?
1 disclosed trade by Cory A. Booker. The latest was on Aug 11, 2026.
Which institutions changed their ALNY positions?
Recent 13F filers moving the stock include Bank of America, Two Sigma Investments, T. Rowe Price Investment Management, State Street and Squarepoint Ops.
Other biotechnology stocks
Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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