Companies / Alnylam Pharmaceuticals Inc / Activity

Activity — Alnylam Pharmaceuticals Inc

303 moves.

Top impact Insider · CEO moves Insider · biggest buys Insider · biggest sells Institution · biggest moves Institution · new positions

Date	Actor	Action	Security	Value	Shares Δ	Position after	Impact
May 20, 2026	Reitan Colleen F Director	Grant	Common Stock	$0	+671 +86.58%	1,446 <0.01% of shares	low
May 20, 2026	Kellogg Peter N Director	Grant	Common Stock	$0	+671 +86.58%	1,446 <0.01% of shares	low
May 20, 2026	Hamburg Margaret a Director	Grant	Common Stock	$0	+671 +73.66%	1,582 <0.01% of shares	low
May 20, 2026	Brandicourt Olivier Director	Grant	Common Stock	$0	+671 +86.58%	1,446 <0.01% of shares	low
May 20, 2026	Ausiello Dennis A Director	Grant	Common Stock	$0	+671 +73.66%	1,582 <0.01% of shares	low
May 20, 2026	Arbuckle Stuart A Director	Grant	Common Stock	$0	+671	671 <0.01% of shares	low
Jun 1, 2026	Pyott David E I Director	Exercise	Common Stock	$0	+4K +242.10%	5,412 <0.01% of shares	low
May 20, 2026	Pyott David E I Director	Grant	Common Stock	$0	+671 +73.66%	1,582 <0.01% of shares	low
Mar 2, 2026	Tanguler Tolga Executive	Grant	Common Stock	$0	+5K +14.26%	38,204 0.03% of shares	low
Feb 27, 2026	Tanguler Tolga Executive	Exercise	Common Stock	$0	+2K +5.24%	33,435 0.02% of shares	low
Feb 12, 2026	Tanguler Tolga Executive	Grant	Common Stock	$0	+4K +13.46%	33,728 0.03% of shares	low
Jan 11, 2026	Tanguler Tolga Executive	Grant	Common Stock	$0	+4K +13.85%	31,238 0.02% of shares	low
Mar 2, 2026	Garg Pushkal Executive	Grant	Common Stock	$0	+5K +21.55%	26,898 0.02% of shares	low
Feb 27, 2026	Garg Pushkal Executive	Exercise	Common Stock	$0	+2K +7.68%	26,756 0.02% of shares	low
Feb 12, 2026	Garg Pushkal Executive	Grant	Common Stock	$0	+5K +20.34%	27,090 0.02% of shares	low
Jan 11, 2026	Garg Pushkal Executive	Grant	Common Stock	$0	+4K +18.79%	24,021 0.02% of shares	low
Mar 2, 2026	Poulton Jeffrey V. Executive	Grant	Common Stock	$0	+5K +7.73%	66,479 0.05% of shares	low
Feb 27, 2026	Poulton Jeffrey V. Executive	Exercise	Common Stock	$0	+2K +3.19%	61,710 0.05% of shares	low
Feb 12, 2026	Poulton Jeffrey V. Executive	Grant	Common Stock	$0	+5K +7.97%	62,044 0.05% of shares	low
Jan 11, 2026	Poulton Jeffrey V. Executive	Grant	Common Stock	$0	+6K +11.46%	60,245 0.05% of shares	low
Mar 2, 2026	Supran Bryan Executive	Grant	Common Stock	$0	+2K +11.81%	14,565 0.01% of shares	low
Mar 2, 2026	Greenstreet Yvonne CEO	Grant	Common Stock	$0	+14K +15.12%	105,427 0.08% of shares	low
Feb 27, 2026	Greenstreet Yvonne CEO	Exercise	Common Stock	$0	+6K +6.91%	91,583 0.07% of shares	low
Feb 12, 2026	Greenstreet Yvonne CEO	Grant	Common Stock	$0	+14K +18.12%	92,620 0.07% of shares	low
Jan 11, 2026	Greenstreet Yvonne CEO	Grant	Common Stock	$0	+19K +27.55%	87,988 0.07% of shares	low
Mar 2, 2026	Fitzgerald Kevin Joseph Executive	Grant	Common Stock	$0	+4K +17.22%	25,110 0.02% of shares	low
Feb 23, 2026	Fitzgerald Kevin Joseph Executive	Grant	Common Stock	$0	+158 +0.74%	21,422 0.02% of shares	low
Feb 12, 2026	Fitzgerald Kevin Joseph Executive	Grant	Common Stock	$0	+4K +18.81%	25,264 0.02% of shares	low
Jan 11, 2026	Fitzgerald Kevin Joseph Executive	Grant	Common Stock	$0	+4K +17.87%	25,064 0.02% of shares	low
Jun 1, 2026	Cravatt Benjamin Director	Grant	Stock Option (Right to Buy)	—	+4K	4,393 <0.01% of shares	low
May 20, 2026	Sigal Charles Elliott Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
May 20, 2026	Schulman Amy W Director	Grant	Stock Option (Right to Buy)	—	+2K	1,802 <0.01% of shares	low
May 20, 2026	Reitan Colleen F Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
May 20, 2026	Kellogg Peter N Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
May 20, 2026	Hamburg Margaret a Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
May 20, 2026	Brandicourt Olivier Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
May 20, 2026	Ausiello Dennis A Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
May 20, 2026	Arbuckle Stuart A Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
May 13, 2026	Schulman Amy W Director	Exercise	Stock Option (Right to Buy)	—	-11K -100.00%	0 0.00% of shares	low
Jun 1, 2026	Pyott David E I Director	Exercise	Stock Option (Right to Buy)	—	-4K -100.00%	0 0.00% of shares	low
May 20, 2026	Pyott David E I Director	Grant	Stock Option (Right to Buy)	—	+1K	1,441 <0.01% of shares	low
Mar 2, 2026	Tanguler Tolga Executive	Grant	Stock Option (right to buy)	—	+10K	10,480 <0.01% of shares	low
Feb 27, 2026	Tanguler Tolga Executive	Exercise	Restricted Stock Units	—	-2K -100.00%	0 0.00% of shares	low
Mar 2, 2026	Garg Pushkal Executive	Grant	Stock Option (right to buy)	—	+10K	10,480 <0.01% of shares	low
Feb 27, 2026	Garg Pushkal Executive	Exercise	Restricted Stock Units	—	-2K -100.00%	0 0.00% of shares	low
Mar 2, 2026	Poulton Jeffrey V. Executive	Grant	Stock Option (right to buy)	—	+10K	10,480 <0.01% of shares	low
Feb 27, 2026	Poulton Jeffrey V. Executive	Exercise	Restricted Stock Units	—	-2K -100.00%	0 0.00% of shares	low
Jan 5, 2026	Arbuckle Stuart A Director	Grant	Stock Option (right to buy)	—	+3K	3,279 <0.01% of shares	low
Mar 2, 2026	Supran Bryan Executive	Grant	Stock Option (right to buy)	—	+3K	3,381 <0.01% of shares	low
Mar 2, 2026	Greenstreet Yvonne CEO	Grant	Stock Price Performance Stock Unit	—	+111K	110,746 0.08% of shares	low