Form 4 Filing for Amy W. Schulman at Alnylam Pharmaceuticals, Inc.

Amy W. Schulman, a director at Alnylam Pharmaceuticals, Inc. (ALNY), acquired 838 shares of Common Stock and was granted a Stock Option for 1802 shares on May 20, 2026. The Common Stock acquisition, represented by restricted stock units (RSUs) under the company's 2018 Stock Incentive Plan, vests in full on the first anniversary of the grant date or upon earlier retirement/resignation under specific conditions. The stock option also vests in full on the first anniversary of the grant date or upon earlier retirement/resignation under similar conditions. Both transactions are reported as direct ownership. The RSU grant had a reported price of $0.00 and resulted in 24,049 shares owned post-transaction. The stock option has an exercise price of $298.48 and 1802 shares owned post-transaction.