InsiderTrades

Form 4 for ALNY ALNYLAM PHARMACEUTICALS, INC.

Accepted 2026-03-04 00:00:00 ET · period of report 2026-03-02 · accession 0001735276-26-000049 · 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
D 2026-03-04 2026-03-02 ALNY SUPRAN BRYAN EVP, CLO, Sec A - Grant $0.00 +1,539 14.6K +12% $0
D 2026-03-04 2026-03-02 ALNY SUPRAN BRYAN EVP, CLO, Sec A - Grant $0.00 +3,381 3,381 New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-03-02 A A 1,539 $0.00 14,565 D — — (F1) These shares are represented by restricted stock units (RSUs) granted under the Second Amended and Restated 2018 Stock Incentive Plan. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest over a three-year period, with one third vesting on each of the first, second and third anniversaries of the grant date, subject to the Reporting Persons continuous service with the Issuer as of each such vesting date.
2 Derivative Stock Option (right to buy) 2026-03-02 A A 3,381 $0.00 3,381 D $325.07 · — to 2036-03-02 3,381 Common Stock (F2) The stock option vests as to 25% of the shares on the first anniversary of the grant date and the remaining shares vest in equal installments at the end of each successive three-month period thereafter until the fourth anniversary of the grant date, subject to the Reporting Persons continuous service with the Issuer as of each such vesting date.