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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1178670	Alnylam Pharmaceuticals Inc.	ALNY	Pharmaceutical Preparations (2834)	770602661

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1226295	A Phillip Sharp	675 West Kendall Street Henri A. Termeer Square Cambridge MA 02142		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2025-01-23	11,250	$131.21	11,250	No	4	M	Direct
Common Stock	Disposition	2025-01-23	11,250	$275.00	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2025-01-23	11,250	$0.00	11,250	$131.21

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2016-06-01	2025-06-01	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	266,899	Indirect	by Trust

Footnotes

All transactions reported on this Form 4 were made pursuant to a Rule 10b5-1(c) trading plan adopted by the reporting person on August 2, 2024. The 11,250 options exercised and sold by the reporting person were due to expire on June 1, 2025.
Includes shares held by the Phillip A. Sharp Revocable Trust, of which the reporting person and his spouse are co-trustees. Also includes shares held in trust for the benefit of the reporting persons children, of which the reporting persons children and spouse are the trustees.
This stock option was fully vested and exercisable as of June 1, 2016.