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Filing Details

Accession Number:: 0001735276-24-000020
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2024-02-29 16:18:42
Reporting Period:: 2024-02-27

Accepted Time:: 2024-02-29 16:18:42
SEC Url:: Form 4 Filing

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
1849458	Tolga Tanguler	675 West Kendall Street Henri A. Termeer Square Cambridge MA 02142	Evp, Chief Commercial Officer	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2024-02-27	1,667	$0.00	5,737	No	4	M	Direct
Common Stock	Disposition	2024-02-28	216	$154.54	5,521	No	4	S	Direct
Common Stock	Disposition	2024-02-28	170	$155.45	5,351	No	4	S	Direct
Common Stock	Disposition	2024-02-28	100	$156.38	5,251	No	4	S	Direct
Common Stock	Disposition	2024-02-28	14	$157.30	5,237	No	4	S	Direct
Common Stock	Disposition	2024-02-28	1	$158.09	5,236	No	4	S	Direct

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

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Units	Disposition	2024-02-27	1,667	$0.00	1,667	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
3,333			No	4	M	Direct

Footnotes

Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.
The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $153.94 to $154.94. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $154.95 to $155.95. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $155.96 to $156.91. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $157.01 to $157.99. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.
On February 27, 2023, the reporting person was granted 5,000 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.