Alnylam Pharmaceuticals, Inc.

ALNY

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001178670

SEC filings (opens in a new tab)

No open-market purchases or sales by Alnylam Pharmaceuticals, Inc. insiders were filed in the last 90 days; 794 institutions reported holding it in 13F filings for Q2 2026, worth $40.1B in total; no superinvestor holds it.

13F holders, Q1 2021

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders: 391; No complete 13F data for Q4 2020
Shares held: 109.4M; No complete 13F data for Q4 2020
Total value: $15.4B; No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting ALNY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 391 institutions

Value heldQ1 2021: $15.4B

Institutions holding ALNY and their total value by quarter
Quarter	Holders	Value
Q2 2026	794	$40.1B
Q1 2026	793	$43.4B
Q4 2025	852	$52.7B
Q3 2025	823	$59.2B
Q2 2025	653	$43.1B
Q1 2025	625	$34.8B
Q4 2024	594	$30.1B
Q3 2024	569	$34.1B
Q2 2024	525	$29.1B
Q1 2024	499	$17.2B
Q4 2023	501	$22.4B
Q3 2023	454	$20.9B
Q2 2023	477	$22.5B
Q1 2023	478	$24.0B
Q4 2022	489	$28.4B
Q3 2022	497	$26.7B
Q2 2022	424	$16.6B
Q1 2022	443	$18.6B
Q4 2021	435	$19.0B
Q3 2021	407	$21.1B
Q2 2021	401	$19.0B
Q1 2021	391	$15.4B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ALNY in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
Mirae Asset Global Investments Co., Ltd.	55,864	$7.89M	0.03%	–	–
683 Capital Management, LLC	55,000	$7.76M	0.50%	–	–
Storebrand Asset Management AS	54,952	$7.76M	0.04%	–	–
Asset Management One Co.,Ltd.	54,794	$7.74M	0.03%	–	–
Macquarie Group Ltd	53,493	$7.55M	0.01%	–	–
Teachers Retirement System of the State of Kentucky	52,216	$7.37M	0.07%	–	–
Ameriprise Financial Inc	49,381	$7.03M	0.00%	–	–
Eaton Vance Management	45,869	$6.48M	0.01%	–	–
Rosenblum Silverman Sutton S F Inc	42,895	$6.06M	1.55%	–	–
Bank of Montreal	42,183	$6.01M	0.00%	–	–
Royal London Asset Management Ltd	42,392	$5.99M	0.03%	–	–
Evolutionary Tree Capital Management, LLC	41,537	$5.87M	3.47%	–	–
Erste Asset Management GmbH	42,600	$5.76M	0.14%	–	–
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund	40,684	$5.74M	0.05%	–	–
Nomura Asset Management Co Ltd	40,614	$5.73M	0.04%	–	–
Principal Financial Group Inc	40,080	$5.66M	0.00%	–	–
Integral Health Asset Management, LLC	40,000	$5.65M	1.61%	–	–
Aviva PLC	38,427	$5.43M	0.03%	–	–
Tobam	38,421	$5.42M	0.23%	–	–
Voya Investment Management LLC	38,232	$5.40M	0.01%	–	–
Group One Trading, L.P.	37,998	$5.37M	0.12%	–	–
Allianz Asset Management GmbH	37,459	$5.29M	0.01%	–	–
Raymond James & Associates	36,631	$5.17M	0.01%	–	–
Two Sigma Investments, LP	36,619	$5.17M	0.02%	–	–
Federation des caisses Desjardins du Quebec	36,347	$5.13M	0.06%	–	–
State of Alaska, Department of Revenue	34,017	$4.80M	0.05%	–	–
Arizona State Retirement System	33,498	$4.73M	0.04%	–	–
HSBC Holdings PLC	32,920	$4.62M	0.01%	–	–
Two Sigma Advisers, LP	31,900	$4.50M	0.01%	–	–
Karani Asset Management LLC	31,587	$4.46M	2.63%	–	–
Nisa Investment Advisors, LLC	31,012	$4.38M	0.03%	–	–
Taylor Wealth Management Partners	29,613	$4.18M	1.53%	–	–
Guggenheim Capital LLC	29,438	$4.16M	0.03%	–	–
AMP Capital Investors Ltd	29,108	$4.09M	0.02%	–	–
Worldquant Millennium Advisors LLC	28,728	$4.06M	0.09%	–	–
Skandinaviska Enskilda Banken AB (publ)	28,061	$3.96M	0.03%	–	–
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	27,695	$3.91M	0.03%	–	–
Envestnet Asset Management Inc	26,627	$3.76M	0.00%	–	–
Zurcher Kantonalbank (Zurich Cantonalbank)	26,331	$3.72M	0.02%	–	–
Ararat Capital Management, LP	25,790	$3.64M	2.01%	–	–
ETF Managers Group, LLC	26,772	$3.62M	0.06%	–	–
Forsta Ap-Fonden	25,000	$3.53M	0.05%	–	–
Korea Investment CORP	24,600	$3.47M	0.01%	–	–
EFG Asset Management (Americas) Corp.	24,440	$3.45M	0.71%	–	–
Susquehanna Fundamental Investments, LLC	24,021	$3.39M	0.06%	–	–
BNP Paribas Arbitrage, SA	23,995	$3.39M	0.01%	–	–
Gulf International Bank (UK) Ltd	23,761	$3.35M	0.05%	–	–
Rafferty Asset Management, LLC	23,428	$3.31M	0.02%	–	–
DnB Asset Management AS	23,386	$3.30M	0.02%	–	–
ExodusPoint Capital Management, LP	22,762	$3.21M	0.06%	–	–
Utah Retirement Systems	22,172	$3.13M	0.04%	–	–
UBS Group AG	21,222	$3.00M	0.00%	–	–
Profund Advisors LLC	20,613	$2.91M	0.11%	–	–
Handelsbanken Fonder AB	20,300	$2.87M	0.02%	–	–
Stifel Financial Corp	20,247	$2.86M	0.00%	–	–
AtonRa Partners	20,210	$2.85M	1.27%	–	–
DCF Advisers, LLC	20,000	$2.82M	1.43%	–	–
NN Investment Partners Holdings N.V.	19,464	$2.75M	0.02%	–	–
SEI Investments Co	19,215	$2.72M	0.01%	–	–
Tudor Investment Corp Et Al	19,022	$2.69M	0.06%	–	–
British Columbia Investment Management Corp	19,023	$2.69M	0.02%	–	–
ProShare Advisors LLC	18,386	$2.60M	0.01%	–	–
Janus Henderson Group PLC	18,183	$2.57M	0.00%	–	–
Jane Street Group, LLC	17,800	$2.51M	0.01%	–	–
Public Employees Retirement Association of Colorado	16,463	$2.32M	0.01%	–	–
Impax Asset Management Group plc	16,245	$2.29M	0.01%	–	–
Royal Bank of Canada	16,199	$2.29M	0.00%	–	–
Andra AP-fonden	16,000	$2.26M	0.05%	–	–
The PNC Financial Services Group, Inc.	15,895	$2.25M	0.00%	–	–
Quantitative Investment Management, LLC	15,851	$2.24M	0.19%	–	–
Toronto Dominion Bank	15,693	$2.22M	0.00%	–	–
Connor, Clark & Lunn Investment Management Ltd.	15,056	$2.13M	0.01%	–	–
Comerica Bank	15,177	$2.08M	0.01%	–	–
Simplex Trading, LLC	14,386	$2.03M	0.11%	–	–
CWM, LLC	11,896	$2.02M	0.02%	–	–
Prelude Capital Management, LLC	14,180	$2.00M	0.14%	–	–
Teacher Retirement System of Texas	12,841	$1.81M	0.01%	–	–
IFM Investors Pty Ltd	12,413	$1.75M	0.05%	–	–
Standard Life Aberdeen plc	12,145	$1.72M	0.00%	–	–
Xponance, Inc.	12,055	$1.70M	0.04%	–	–
Duality Advisers, LP	12,039	$1.70M	0.15%	–	–
Cullen/Frost Bankers, Inc.	11,725	$1.66M	0.04%	–	–
First Foundation Advisors	11,674	$1.65M	0.07%	–	–
Vident Investment Advisory, LLC	11,597	$1.64M	0.06%	–	–
Mackenzie Financial Corp	11,089	$1.57M	0.00%	–	–
Nissay Asset Management Corp	11,083	$1.56M	0.02%	–	–
Employees Retirement System of Texas	11,018	$1.56M	0.02%	–	–
Westpac Banking Corp	10,969	$1.55M	0.02%	–	–
Exchange Traded Concepts, LLC	10,744	$1.52M	0.06%	–	–
Seeyond	9,711	$1.37M	0.14%	–	–
KBC Group NV	9,569	$1.35M	0.01%	–	–
LPL Financial LLC	9,101	$1.28M	0.00%	–	–
Pinpoint Asset Management Ltd	9,000	$1.27M	0.34%	–	–
Maryland State Retirement & Pension System	8,827	$1.25M	0.04%	–	–
Robeco Institutional Asset Management B.V.	8,810	$1.24M	0.00%	–	–
Metropolitan Life Insurance Co	8,391	$1.18M	0.02%	–	–
Beacon Investment Advisory Services, Inc.	8,333	$1.18M	0.05%	–	–
Jacobs Levy Equity Management, Inc	8,302	$1.17M	0.01%	–	–
US Bancorp	8,244	$1.16M	0.00%	–	–
Brewin Dolphin Ltd	8,145	$1.15M	0.06%	–	–