Form 4 for ALNY ALNYLAM PHARMACEUTICALS, INC.
Accepted 2025-08-15 00:00:00 ET · period of report 2025-08-14 · accession 0001735276-25-000079 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2025-08-15 | 2025-08-14 | ALNY | Ausiello Dennis A | Dir | M - OptEx | $131.34 | +31.4K | 32.4K | +3,452% | +$4.13M |
| DM | 2025-08-15 | 2025-08-14 | ALNY | Ausiello Dennis A | Dir | S - Sale+OE | $436.58 | -31.4K | 1,552 | -95% | -$13.73M |
| DM | 2025-08-15 | 2025-08-14 | ALNY | Ausiello Dennis A | Dir | M - OptEx | $0.00 | -31.4K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-08-14 | M | A | 9,000 | $72.01 | 9,911 | D | — | — | |
| 2 | Common | Common Stock | 2025-08-14 | M | A | 5,153 | $128.31 | 15,064 | D | — | — | |
| 3 | Common | Common Stock | 2025-08-14 | S | D | 641 | $442.66 | 911 | D | — | — | (F12) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $442.44 to $443.10 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. |
| 4 | Common | Common Stock | 2025-08-14 | M | A | 4,581 | $148.77 | 19,645 | D | — | — | |
| 5 | Common | Common Stock | 2025-08-14 | M | A | 5,228 | $151.22 | 24,873 | D | — | — | |
| 6 | Common | Common Stock | 2025-08-14 | M | A | 4,032 | $171.95 | 28,905 | D | — | — | |
| 7 | Common | Common Stock | 2025-08-14 | M | A | 3,454 | $189.87 | 32,359 | D | — | — | |
| 8 | Common | Common Stock | 2025-08-14 | S | D | 1,985 | $430.81 | 30,374 | D | — | — | (F2) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $430.39 to $431.24. 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. |
| 9 | Common | Common Stock | 2025-08-14 | S | D | 1,938 | $432.94 | 28,436 | D | — | — | (F3) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $432.10 to $433.06. 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. |
| 10 | Common | Common Stock | 2025-08-14 | S | D | 2,098 | $434.50 | 26,338 | D | — | — | (F4) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $433.59 to $434.56. 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. |
| 11 | Common | Common Stock | 2025-08-14 | S | D | 7,675 | $435.40 | 18,663 | D | — | — | (F5) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $434.69 to $435.66. 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. |
| 12 | Common | Common Stock | 2025-08-14 | S | D | 5,358 | $436.00 | 13,305 | D | — | — | (F6) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $435.79 to $436.35 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. |
| 13 | Common | Common Stock | 2025-08-14 | S | D | 1,922 | $437.56 | 11,383 | D | — | — | (F7) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $436.84 to $437.83 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. |
| 14 | Common | Common Stock | 2025-08-14 | S | D | 2,086 | $438.34 | 9,297 | D | — | — | (F8) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $437.85 to $438.71 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. |
| 15 | Common | Common Stock | 2025-08-14 | S | D | 5,302 | $439.27 | 3,995 | D | — | — | (F9) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $438.91 to $439.89 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. |
| 16 | Common | Common Stock | 2025-08-14 | S | D | 1,238 | $440.54 | 2,757 | D | — | — | (F10) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $440.24 to $440.93 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. |
| 17 | Common | Common Stock | 2025-08-14 | S | D | 1,205 | $441.88 | 1,552 | D | — | — | (F11) The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $441.41 to $442.11 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. |
| 18 | Derivative | Stock Option (right to buy) | 2025-08-14 | M | D | 4,032 | $0.00 | 0 | D | $171.95 · 2022-07-15 to 2031-07-14 | 4,032 Common Stock | (F18) The stock option was fully vested as of July 15, 2022. |
| 19 | Derivative | Stock Option (right to buy) | 2025-08-14 | M | D | 5,228 | $0.00 | 0 | D | $151.22 · 2025-05-16 to 2034-05-16 | 5,228 Common Stock | (F17) The stock option was fully vested as of May 16, 2025. |
| 20 | Derivative | Stock Option (right to buy) | 2025-08-14 | M | D | 4,581 | $0.00 | 0 | D | $148.77 · 2021-07-01 to 2030-07-01 | 4,581 Common Stock | (F16) The stock option was fully vested as of July 1, 2021. |
| 21 | Derivative | Stock Option (right to buy) | 2025-08-14 | M | D | 5,153 | $0.00 | 0 | D | $128.31 · 2023-05-18 to 2032-05-17 | 5,153 Common Stock | (F15) The stock option was fully vested as of May 18, 2023. |
| 22 | Derivative | Stock Option (right to buy) | 2025-08-14 | M | D | 3,454 | $0.00 | 0 | D | $189.87 · 2024-05-18 to 2033-05-18 | 3,454 Common Stock | (F19) The stock option was fully vested as of May 18, 2024. |
| 23 | Derivative | Stock Option (right to buy) | 2025-08-14 | M | D | 9,000 | $0.00 | 0 | D | $72.01 · 2020-07-01 to 2029-06-30 | 9,000 Common Stock | (F14) The stock option was fully vested as of July 1, 2020. |