ALNY US Equity

Alnylam Pharmaceuticals, Inc.

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Health Care · Pharmaceutical Preparations · CIK 1178670 · FY ends Dec 31

$236.22

+6.92 (+3.02%)

USD · as of 2026-08-21 · marketstack

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Institutional holders Index & fund register Insiders (Form 4)Government

Insider activity· execs, directors & 10%-owners · ALNY

Open-market buys · 12mo

0 · $0

Open-market sells · 12mo

365 · $64M

Net · 12mo

−$64M · −100%

Signal = open-market buys/sells (P/S); grants, exercises, tax, gifts are mechanics. Filings through 2026-06-30 only.

Date	Insider	Role	Transaction	Shares	Price	Value
2026-06-01	PYOTT DAVID E I	Director	−Sell	1,222	$299.87	$366,441
2026-06-01	PYOTT DAVID E I	Director	+Exercise	3,830	—	—
2026-06-01	PYOTT DAVID E I	Director	−Sell	495	$300.72	$148,856
2026-06-01	PYOTT DAVID E I	Director	−Sell	921	$297.71	$274,191
2026-06-01	PYOTT DAVID E I	Director	−Sell	17	$302.65	$5,145
2026-06-01	PYOTT DAVID E I	Director	−Sell	1,175	$298.91	$351,219
2026-05-20	Arbuckle Stuart A	Director	+Grant	671	—	—
2026-05-20	Ausiello Dennis A	Director	+Grant	671	—	—
2026-05-20	BRANDICOURT OLIVIER	Director	+Grant	671	—	—
2026-05-20	HAMBURG MARGARET A	Director	+Grant	671	—	—
2026-05-20	KELLOGG PETER N	Director	+Grant	671	—	—
2026-05-20	PYOTT DAVID E I	Director	+Grant	671	—	—
2026-05-20	Reitan Colleen F	Director	+Grant	671	—	—
2026-05-20	SCHULMAN AMY W	Director	+Grant	838	—	—
2026-05-20	Sigal Charles Elliott	Director	+Grant	671	—	—
2026-05-13	SCHULMAN AMY W	Director	+Exercise	11,250	$70.20	$789,750
2026-04-06	McLaughlin Melissa	Officer	−Sell	56	$320.14	$17,928
2026-04-06	McLaughlin Melissa	Officer	−Sell	909	$329.76	$299,752
2026-04-06	McLaughlin Melissa	Officer	−Sell	829	$330.46	$273,951
2026-04-06	McLaughlin Melissa	Officer	−Sell	293	$331.89	$97,244
2026-04-06	McLaughlin Melissa	Officer	−Sell	199	$333.94	$66,454
2026-04-02	McLaughlin Melissa	Officer	−Sell	147	$320.62	$47,131
2026-04-02	McLaughlin Melissa	Officer	−Sell	245	$322.86	$79,101
2026-04-02	McLaughlin Melissa	Officer	−Sell	224	$321.64	$72,047
2026-04-02	McLaughlin Melissa	Officer	−Sell	86	$319.69	$27,493
2026-04-02	McLaughlin Melissa	Officer	−Sell	81	$323.64	$26,215
2026-04-02	McLaughlin Melissa	Officer	−Sell	8	$325.49	$2,604
2026-04-02	McLaughlin Melissa	Officer	−Sell	359	$317.44	$113,961
2026-04-02	McLaughlin Melissa	Officer	−Sell	265	$316.61	$83,902
2026-04-02	McLaughlin Melissa	Officer	−Sell	209	$318.47	$66,560
2026-03-05	Fitzgerald Kevin Joseph	Officer	−Sell	153	$326.24	$49,915
2026-03-05	Fitzgerald Kevin Joseph	Officer	−Sell	148	$324.60	$48,041
2026-03-05	Fitzgerald Kevin Joseph	Officer	−Sell	233	$323.25	$75,317
2026-03-05	Fitzgerald Kevin Joseph	Officer	−Sell	124	$321.81	$39,904
2026-03-05	Garg Pushkal	Officer	−Sell	654	$322.33	$210,804
2026-03-05	Garg Pushkal	Officer	−Sell	740	$323.55	$239,427
2026-03-05	Garg Pushkal	Officer	−Sell	510	$324.59	$165,541
2026-03-05	Garg Pushkal	Officer	−Sell	500	$326.08	$163,040
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	59	$320.81	$18,928
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	79	$321.82	$25,424
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	28	$320.01	$8,960
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	57	$325.67	$18,563
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	75	$324.88	$24,366
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	210	$323.84	$68,006
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	96	$323.01	$31,009
2026-03-04	Fitzgerald Kevin Joseph	Officer	−Sell	29	$319.03	$9,252
2026-03-04	Tanguler Tolga	Officer	−Sell	208	$325.67	$67,739
2026-03-04	Tanguler Tolga	Officer	−Sell	106	$319.03	$33,817
2026-03-04	Tanguler Tolga	Officer	−Sell	350	$323.01	$113,054
2026-03-04	Tanguler Tolga	Officer	−Sell	272	$324.88	$88,367
2026-03-04	Tanguler Tolga	Officer	−Sell	767	$323.84	$248,385
2026-03-04	Tanguler Tolga	Officer	−Sell	102	$320.01	$32,641
2026-03-04	Tanguler Tolga	Officer	−Sell	215	$320.81	$68,974
2026-03-04	Tanguler Tolga	Officer	−Sell	289	$321.82	$93,006
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	374	$323.01	$120,806
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	309	$321.82	$99,442
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	230	$320.81	$73,786
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	291	$324.88	$94,540
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	818	$323.84	$264,901
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	223	$325.67	$72,624
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	109	$320.01	$34,881
2026-03-04	Poulton Jeffrey V.	Officer	−Sell	114	$319.03	$36,369
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	129	$320.01	$41,281
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	345	$324.88	$112,084
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	135	$319.03	$43,069
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	265	$325.67	$86,303
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	274	$320.81	$87,902
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	368	$321.82	$118,430
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	444	$323.01	$143,416
2026-03-04	Greenstreet Yvonne	Director,Officer	−Sell	973	$323.84	$315,096
2026-03-04	Garg Pushkal	Officer	−Sell	215	$320.81	$68,974
2026-03-04	Garg Pushkal	Officer	−Sell	289	$321.82	$93,006
2026-03-04	Garg Pushkal	Officer	−Sell	350	$323.01	$113,054
2026-03-04	Garg Pushkal	Officer	−Sell	767	$323.84	$248,385
2026-03-04	Garg Pushkal	Officer	−Sell	272	$324.88	$88,367
2026-03-04	Garg Pushkal	Officer	−Sell	208	$325.67	$67,739
2026-03-04	Garg Pushkal	Officer	−Sell	102	$320.01	$32,641
2026-03-04	Garg Pushkal	Officer	−Sell	106	$319.03	$33,817
2026-03-03	Fitzgerald Kevin Joseph	Officer	−Sell	359	$321.58	$115,447
2026-03-03	Fitzgerald Kevin Joseph	Officer	−Sell	722	$320.51	$231,408
2026-03-03	Fitzgerald Kevin Joseph	Officer	−Sell	282	$318.62	$89,851
2026-03-03	Fitzgerald Kevin Joseph	Officer	−Sell	289	$316.55	$91,483
2026-03-03	Garg Pushkal	Officer	−Sell	463	$321.50	$148,855
2026-03-03	Garg Pushkal	Officer	−Sell	640	$320.48	$205,107
2026-03-03	Garg Pushkal	Officer	−Sell	317	$319.06	$101,142
2026-03-03	Garg Pushkal	Officer	−Sell	355	$316.74	$112,443
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	1,098	$325.63	$357,542
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	160	$332.64	$53,222
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	346	$330.85	$114,474
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	722	$329.71	$238,051
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	424	$328.71	$139,373
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	1,399	$327.67	$458,410
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	1,669	$326.81	$545,446
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	399	$331.93	$132,440
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	382	$324.65	$124,016
2026-03-02	Greenstreet Yvonne	Director,Officer	−Sell	200	$323.62	$64,724
2026-03-02	Greenstreet Yvonne	Director,Officer	+Grant	13,844	—	—
2026-03-02	SUPRAN BRYAN	Officer	+Grant	1,539	—	—
2026-03-02	Tanguler Tolga	Officer	−Sell	47	$323.62	$15,210
2026-03-02	Tanguler Tolga	Officer	−Sell	170	$329.71	$56,051
2026-03-02	Tanguler Tolga	Officer	−Sell	81	$330.85	$26,799
2026-03-02	Tanguler Tolga	Officer	−Sell	94	$331.93	$31,201
2026-03-02	Tanguler Tolga	Officer	+Grant	4,769	—	—
2026-03-02	Tanguler Tolga	Officer	−Sell	37	$332.64	$12,308
2026-03-02	Tanguler Tolga	Officer	−Sell	90	$324.65	$29,218
2026-03-02	Tanguler Tolga	Officer	−Sell	258	$325.63	$84,013
2026-03-02	Tanguler Tolga	Officer	−Sell	392	$326.81	$128,110
2026-03-02	Tanguler Tolga	Officer	−Sell	329	$327.67	$107,803
2026-03-02	Tanguler Tolga	Officer	−Sell	100	$328.71	$32,871
2026-03-02	Fitzgerald Kevin Joseph	Officer	+Grant	3,688	—	—
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	47	$323.62	$15,210
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	90	$324.65	$29,218
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	258	$325.63	$84,013
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	392	$326.81	$128,110
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	329	$327.67	$107,803
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	100	$328.71	$32,871
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	170	$329.71	$56,051
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	81	$330.85	$26,799
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	94	$331.93	$31,201
2026-03-02	Fitzgerald Kevin Joseph	Officer	−Sell	37	$332.64	$12,308

SEC Form 3/4/5 through 2026-06-30 · P buy · S sell · A grant · M/X/C exercise · F tax · G gift.

A model's estimate — for research. See the Disclaimer.

ALNY US Equity☆

Insider activity· execs, directors & 10%-owners · ALNY

Insider activity· execs, directors & 10%-owners · ALNY

ALNY US Equity