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Alnylam Pharmaceuticals, Inc. planned insider sales

In the last twelve months insiders at Alnylam Pharmaceuticals, Inc. filed 12 Form 144 notices of planned sales, 61,099 shares worth $24.5 million at the time of filing, from 6 sellers. The latest, filed 2 October 2026: Supran Bryan (officer), 1,758 shares worth $398,862, planned for around 2 October 2026 through Fidelity Brokerage Services LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
2 October 2026Supran BryanOfficer1,758$398,8622 October 20261,758 shares from 2 October 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
1 June 2026Pyott David E IDirector3,830$1.1 million1 June 20263,830 shares from 1 June 2026UBS Financial Services, Inc.Exercise of stock optionsForm 144
6 April 2026McLaughlin MelissaOfficer2,286$731,7496 April 20262,286 shares from 6 April 2026UBS Financial Services, Inc.Stock AwardForm 144
5 March 2026Fitzgerald Kevin JosephOfficer658$212,9885 March 20261,291 shares from 4 March 2026UBS Financial Services, Inc.RSUForm 144
5 March 2026Garg PushkalOfficer2,404$778,1515 March 20264,713 shares from 4 March 2026UBS Financial Services, Inc.RSUForm 144
3 March 2026Fitzgerald Kevin JosephOfficer1,652$530,9033 March 20263,250 shares from 2 March 2026UBS Financial Services, Inc.RSUForm 144
3 March 2026Garg PushkalOfficer1,775$570,4323 March 20263,492 shares from 2 March 2026UBS Financial Services, Inc.RSUForm 144
27 February 2026Garg PushkalOfficer4,627$1.5 million27 February 20264,627 shares from 27 February 2026UBS Financial Services, Inc.PSUForm 144
17 February 2026Fitzgerald Kevin JosephOfficer2,041$677,53217 February 20262,041 shares from 17 February 2026UBS Financial Services, Inc.PSUForm 144
13 January 2026Fitzgerald Kevin JosephOfficer2,290$845,23913 January 20265,759 shares from 12 January 2026UBS Financial Services, Inc.PSUForm 144
17 November 2025Fitzgerald Kevin JosephOfficer12,128$5.4 million17 November 202512,128 shares from 17 November 2025UBS Financial Services, Inc.Exercise of stock options; PSUForm 144
12 November 2025Greenstreet YvonneOfficer, Director25,650$11.6 million12 November 202535,227 shares from 12 November 2025UBS Financial Services, Inc.Exercise of stock optionsForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?