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Filing Details

Accession Number:: 0001735276-23-000071
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2023-08-04 16:02:49
Reporting Period:: 2023-08-02

Accepted Time:: 2023-08-04 16:02:49
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
1219016	W Michael Bonney	675 West Kendall Street Henri A. Termeer Square Cambridge MA 02142		Yes	No	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	2023-08-02	22,477	$0.00	22,477	No	4	M	Direct
Common Stock	Disposition	2023-08-03	300	$181.08	22,177	No	4	S	Direct
Common Stock	Disposition	2023-08-03	500	$182.45	21,677	No	4	S	Direct
Common Stock	Disposition	2023-08-03	560	$183.75	21,117	No	4	S	Direct
Common Stock	Disposition	2023-08-03	1,535	$184.89	19,582	No	4	S	Direct
Common Stock	Disposition	2023-08-03	1,714	$185.99	17,868	No	4	S	Direct
Common Stock	Disposition	2023-08-03	1,389	$187.04	16,479	No	4	S	Direct
Common Stock	Disposition	2023-08-03	450	$187.71	16,029	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
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	2023-08-02	22,477	$0.00	22,477	$0.00

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

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	4,000	Indirect	by Trust

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 $181.00 to $181.25. 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 $182.13 to $183.06. 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 $183.20 to $184.15. 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 $184.48 to $185.44. 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 $185.49 to $186.31. 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 $186.53 to $187.53. 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 $187.58 to $187.99. 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.
The shares of ALNY common stock were purchased by the Michael W. Bonney Revocable Trust, of which the reporting person is trustee.
Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.
The restricted stock units vest in full on the second anniversary of the grant date, August 2, 2021, provided the Reporting Person continues to serve as a director through such anniversary date, or earlier than such anniversary date if he ceases to serve as a director other than for cause or by his voluntary resignation as Executive Chair without the consent of the Board of Directors.