| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Tanguler Tolga | EVP, Chief Commercial Officer | 675 WEST KENDALL STREET, HENRI A. TERMEER SQUARE, CAMBRIDGE | By: Brett Budzinski, Attorney-in-Fact For: Tolga Tanguler | 06 Mar 2026 | 0001849458 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALNY | Common Stock | Sale | $33,817 | -106 | -0.29% | $319.03 | 36,500 | 04 Mar 2026 | Direct | F1, F2 |
| transaction | ALNY | Common Stock | Sale | $32,641 | -102 | -0.28% | $320.01 | 36,398 | 04 Mar 2026 | Direct | F1, F3 |
| transaction | ALNY | Common Stock | Sale | $68,974 | -215 | -0.59% | $320.81 | 36,183 | 04 Mar 2026 | Direct | F1, F4 |
| transaction | ALNY | Common Stock | Sale | $93,006 | -289 | -0.8% | $321.82 | 35,894 | 04 Mar 2026 | Direct | F1, F5 |
| transaction | ALNY | Common Stock | Sale | $113,054 | -350 | -0.98% | $323.01 | 35,544 | 04 Mar 2026 | Direct | F1, F6 |
| transaction | ALNY | Common Stock | Sale | $248,385 | -767 | -2.2% | $323.84 | 34,777 | 04 Mar 2026 | Direct | F1, F7 |
| transaction | ALNY | Common Stock | Sale | $88,367 | -272 | -0.78% | $324.88 | 34,505 | 04 Mar 2026 | Direct | F1, F8 |
| transaction | ALNY | Common Stock | Sale | $67,739 | -208 | -0.6% | $325.67 | 34,297 | 04 Mar 2026 | Direct | F1, F9 |
| Id | Content |
|---|---|
| F1 | Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement to cover minimum statutory tax withholding obligations upon the vesting of restricted stock units. |
| F2 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $318.27 to $319.27. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F3 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $319.28 to $320.28. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F4 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $320.33 to $321.33. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F5 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $321.34 to $322.31. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F6 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $322.36 to $323.36. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F7 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $323.38 to $324.35. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F8 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $324.39 to $325.38. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| F9 | The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $325.40 to $326.21. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |