Indrani Lall Franchini - 01 Feb 2022 Form 4 Insider Report for ALNYLAM PHARMACEUTICALS, INC. (ALNY)

Role: EVP, CLO & Secretary
Signature: By: /s/ Mary Beth DeLena, Attorney-in-Fact For: Indrani Franchini
Issuer symbol: ALNY
Transactions as of: 01 Feb 2022
Net transactions value: $0
Form type: 4
Filing time: 09 Feb 2022, 19:59:08 UTC
Previous filing: 09 Feb 2022
Next filing: 03 Feb 2023
SEC: View on sec.gov

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	Restricted Stock Units	Award	$0	+15,525		$0.000000	15,525	01 Feb 2022	Common Stock	15,525		Direct	F1, F2
transaction	ALNY	Stock Option (right to buy)	Award	$0	+29,182		$0.000000	29,182	01 Feb 2022	Common Stock	29,182	$144.93	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.
F2	The restricted stock units vest ratably on each of the first, second and third anniversaries of the Grant Date.
F3	The stock option vests 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.