| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALNY | Restricted Stock Units | Award | $0 | +5.79K | $0.00 | 5.79K | Feb 27, 2023 | Common Stock | 5.79K | Direct | F1, F2, F3 | ||
| transaction | ALNY | Stock Option (right to buy) | Award | $0 | +12K | $0.00 | 12K | Feb 27, 2023 | Common Stock | 12K | $190.01 | Direct | F4, F5 |
| Id | Content |
|---|---|
| F1 | Each restricted stock unit represents a contingent right to receive one share of ALNY common stock. |
| F2 | Represents the time-vested restricted stock unit portion of the reporting person's annual equity award granted in 2023 for 2022 performance. The reporting person also received 11,579 performance stock units as part of their annual equity award that will vest upon the achievement of three specific performance conditions (subject to a one year minimum vesting period), which will be reported on a Form 4 as to the performance stock units allocated to each performance condition if and when each performance condition is met and the performance stock units vest. |
| F3 | The restricted stock units vest ratably in three installments, with one third vesting on each of the first, second and third anniversaries of the grant date. |
| F4 | Represents the time-vested stock option portion of the reporting person's annual equity award granted in 2023 for 2022 performance. |
| F5 | The stock option vests as to 25% of the shares on the first anniversary of the grant date and as to an additional 6.25% of the shares at the end of each successive three month period thereafter until the fourth anniversary of the grant date. |
Exhibit List: Exhibit 24 - Power of Attorney