Alnylam Pharmaceuticals, Inc. (ALNY)
Alnylam Pharmaceuticals, Inc. (ALNY) Insider Trading
Directors, officers and holders of more than 10% of ALNY report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 813 transactions on file: 0 with code P, 26 with code S and 24 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | SUPRAN BRYAN | EVP, CLO and Secretary | S Sale | 1,758 | $226.88 | $398,855 |
| Sep 19, 2026 | Greenstreet Yvonne | Chief Executive Officer | A Award | 107 | Not measured | Not measured |
| Jun 1, 2026 | PYOTT DAVID E I | Director | M Exercise | 3,830 | Not measured | Not measured |
| Jun 1, 2026 | PYOTT DAVID E I | Director | S Sale | 1,222 | $299.87 | $366,441 |
| Jun 1, 2026 | Cravatt Benjamin | Director | A Award | 4,393 | Not measured | Not measured |
| Jun 1, 2026 | PYOTT DAVID E I | Director | S Sale | 17 | $302.65 | $5,145 |
| Jun 1, 2026 | PYOTT DAVID E I | Director | S Sale | 495 | $300.72 | $148,856 |
| Jun 1, 2026 | PYOTT DAVID E I | Director | S Sale | 921 | $297.71 | $274,191 |
| Jun 1, 2026 | PYOTT DAVID E I | Director | S Sale | 1,175 | $298.91 | $351,219 |
| Jun 1, 2026 | PYOTT DAVID E I | Director | M Exercise | 3,830 | Not measured | Not measured |
| May 20, 2026 | HAMBURG MARGARET A | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | PYOTT DAVID E I | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | SCHULMAN AMY W | Director | A Award | 1,802 | Not measured | Not measured |
| May 20, 2026 | BRANDICOURT OLIVIER | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | Reitan Colleen F | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | BRANDICOURT OLIVIER | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | Arbuckle Stuart A | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | Sigal Charles Elliott | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | Reitan Colleen F | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | Sigal Charles Elliott | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | KELLOGG PETER N | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | PYOTT DAVID E I | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | HAMBURG MARGARET A | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | KELLOGG PETER N | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | Arbuckle Stuart A | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | Ausiello Dennis A | Director | A Award | 671 | Not measured | Not measured |
| May 20, 2026 | Ausiello Dennis A | Director | A Award | 1,441 | Not measured | Not measured |
| May 20, 2026 | SCHULMAN AMY W | Director | A Award | 838 | Not measured | Not measured |
| May 13, 2026 | SCHULMAN AMY W | Director | M Exercise | 11,250 | $70.20 | $789,750 |
| May 13, 2026 | SCHULMAN AMY W | Director | M Exercise | 11,250 | Not measured | Not measured |
| Apr 6, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 293 | $331.89 | $97,244 |
| Apr 6, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 199 | $333.94 | $66,454 |
| Apr 6, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 56 | $320.14 | $17,928 |
| Apr 6, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 909 | $329.76 | $299,752 |
| Apr 6, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 829 | $330.46 | $273,951 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 81 | $323.64 | $26,215 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 147 | $320.62 | $47,131 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 224 | $321.64 | $72,047 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 8 | $325.49 | $2,604 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 265 | $316.61 | $83,902 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 359 | $317.44 | $113,961 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 245 | $322.86 | $79,101 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 209 | $318.47 | $66,560 |
| Apr 2, 2026 | McLaughlin Melissa | Chief Human Resources Officer | S Sale | 86 | $319.69 | $27,493 |
| Mar 5, 2026 | Garg Pushkal | EVP Chief R&D | S Sale | 740 | $323.55 | $239,427 |
| Mar 5, 2026 | Garg Pushkal | EVP Chief R&D | S Sale | 510 | $324.59 | $165,541 |
| Mar 5, 2026 | Garg Pushkal | EVP Chief R&D | S Sale | 654 | $322.33 | $210,804 |
| Mar 5, 2026 | Garg Pushkal | EVP Chief R&D | S Sale | 500 | $326.08 | $163,040 |
| Mar 5, 2026 | Fitzgerald Kevin Joseph | CSO & EVP, Head of Research | S Sale | 153 | $326.24 | $49,915 |
| Mar 5, 2026 | Fitzgerald Kevin Joseph | CSO & EVP, Head of Research | S Sale | 233 | $323.25 | $75,317 |
The full Form 4 history is on the ALNY company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.