SUPRAN BRYAN 4
4 · ALNYLAM PHARMACEUTICALS, INC. · Filed Mar 4, 2026
Insider Transaction Report
Form 4
SUPRAN BRYAN
EVP, CLO and Secretary
Transactions
- Award
Common Stock
[F1]2026-03-02+1,539→ 14,565 total - Award
Stock Option (right to buy)
[F2]2026-03-02+3,381→ 3,381 totalExercise: $325.07Exp: 2036-03-02→ Common Stock (3,381 underlying)
Footnotes (2)
- [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.
- [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.
Signature
By: Brett Budzinski, Attorney-in-Fact For: Bryan A. Supran|2026-03-04