Yvonne Greenstreet - Jul 11, 2024 Form 4 Insider Report for ALNYLAM PHARMACEUTICALS, INC. (ALNY)

Role: Chief Executive Officer, Director
Signature: By: Brett Budzinski, Attorney-in-Fact For: Yvonne Greenstreet
Stock symbol: ALNY
Transactions as of: Jul 11, 2024
Transactions value $: -$1,851,273
Form type: 4
Date filed: 7/12/2024, 08:02 PM
Previous filing: Jun 26, 2024
Next filing: Aug 2, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALNY	Common Stock	Sale	-$1.85M	-7.09K	-8.81%	$261.00	73.4K	Jul 11, 2024	Direct	F1
holding	ALNY	Common Stock						407	Jul 11, 2024	by Managed Account	F2

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

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	The transactions reported on this Form 4 were made pursuant to a Rule 10b5-1(c) trading plan adopted by the reporting person on March 12, 2024.
F2	Reflects shares of ALNY common stock acquired by the Reporting Person under the issuer 401(k) plan as a result of the issuer 401(k) matching contribution program.