Akshay Vaishnaw - Dec 5, 2022 Form 4 Insider Report for ALNYLAM PHARMACEUTICALS, INC. (ALNY)

Role
President
Signature
By: /s/ Cynthia L Anderson, Attorney-in-Fact For: Akshay K. Vaishnaw
Stock symbol
ALNY
Transactions as of
Dec 5, 2022
Transactions value $
$449
Form type
4
Date filed
12/7/2022, 03:09 PM
Previous filing
Aug 5, 2022
Next filing
Feb 14, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALNY Common Stock Options Exercise $100K +1.12K +6.13% $88.95 19.5K Dec 5, 2022 Direct
transaction ALNY Common Stock Options Exercise $100K +1.59K +8.15% $63.00 21.1K Dec 5, 2022 Direct
transaction ALNY Common Stock Options Exercise $100K +2.37K +11.25% $42.22* 23.4K Dec 5, 2022 Direct
transaction ALNY Common Stock Tax liability -$299K -1.32K -5.65% $226.20 22.1K Dec 5, 2022 Direct
holding ALNY Common Stock 515 Dec 5, 2022 by Managed Account F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALNY Stock Option (right to buy) Options Exercise $0 -2.37K -100% $0.00* 0 Dec 5, 2022 Common Stock 2.37K $42.22 Direct F2
transaction ALNY Stock Option (right to buy) Options Exercise $0 -1.59K -4.88% $0.00 30.9K Dec 5, 2022 Common Stock 1.59K $63.00 Direct F2
transaction ALNY Stock Option (right to buy) Options Exercise $0 -1.12K -3.75% $0.00 28.9K Dec 5, 2022 Common Stock 1.12K $88.95 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects shares of ALNY common stock acquired by the reporting person under the ALNY 401(k) plan as a result of the ALNY 401(k) matching contribution program.
F2 The stock option vested as to 25% of the shares on the 1st anniversary of the date of the stock option grant and as to an additional 6.25% of the shares each successive three month period thereafter.