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Alnylam Pharmaceuticals, Inc.

ALNY
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001178670

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, Q4 2022

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 31, 2022. 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
489
+1 vs. Q3 2022
Shares held
119.5M
−13.5M (−10.2%) vs. Q3 2022
Total value
$28.4B
+$1.76B (+6.6%) vs. Q3 2022
New holders
85
178 more added
Sold out
84
149 more reduced

9 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: new holders, sold out and not filed yet

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 holdersQ4 2022: 489 institutions
Q1 2021: 391 institutionsQ2 2021: 401 institutionsQ3 2021: 407 institutionsQ4 2021: 435 institutionsQ1 2022: 443 institutionsQ2 2022: 424 institutionsQ3 2022: 497 institutionsQ4 2022: 489 institutionsQ1 2023: 478 institutionsQ2 2023: 477 institutionsQ3 2023: 454 institutionsQ4 2023: 501 institutionsQ1 2024: 499 institutionsQ2 2024: 525 institutionsQ3 2024: 569 institutionsQ4 2024: 594 institutionsQ1 2025: 625 institutionsQ2 2025: 653 institutionsQ3 2025: 823 institutionsQ4 2025: 852 institutionsQ1 2026: 793 institutionsQ2 2026: 794 institutions
Value heldQ4 2022: $28.4B
Q1 2021: $15.4BQ2 2021: $19.0BQ3 2021: $21.1BQ4 2021: $19.0BQ1 2022: $18.6BQ2 2022: $16.6BQ3 2022: $26.7BQ4 2022: $28.4BQ1 2023: $24.0BQ2 2023: $22.5BQ3 2023: $20.9BQ4 2023: $22.4BQ1 2024: $17.2BQ2 2024: $29.1BQ3 2024: $34.1BQ4 2024: $30.1BQ1 2025: $34.8BQ2 2025: $43.1BQ3 2025: $59.2BQ4 2025: $52.7BQ1 2026: $43.4BQ2 2026: $40.1B
Institutions holding ALNY and their total value by quarter
QuarterHoldersValue
Q2 2026794$40.1B
Q1 2026793$43.4B
Q4 2025852$52.7B
Q3 2025823$59.2B
Q2 2025653$43.1B
Q1 2025625$34.8B
Q4 2024594$30.1B
Q3 2024569$34.1B
Q2 2024525$29.1B
Q1 2024499$17.2B
Q4 2023501$22.4B
Q3 2023454$20.9B
Q2 2023477$22.5B
Q1 2023478$24.0B
Q4 2022489$28.4B
Q3 2022497$26.7B
Q2 2022424$16.6B
Q1 2022443$18.6B
Q4 2021435$19.0B
Q3 2021407$21.1B
Q2 2021401$19.0B
Q1 2021391$15.4B

Institutions, Q4 2022

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2022.

Institutions holding ALNY in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Simplex Trading, LLC8,877$2.11M0.10%+8,868+98,533.3%Added
Nordea Investment Management AB8,547$2.02M0.00%+1,293+17.8%Added
Schroder Investment Management Group8,480$2.02M0.00%−598−6.6%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd8,290$1.97M0.04%00.0%Unchanged
US Bancorp8,031$1.91M0.00%−212−2.6%Reduced
Assenagon Asset Management S.A.7,827$1.86M0.01%+1,569+25.1%Added
Stifel Financial Corp7,450$1.77M0.00%−2,807−27.4%Reduced
MetLife Investment Management7,432$1.77M0.01%−58−0.8%Reduced
Banque Pictet & Cie SA7,423$1.76M0.02%−4,910−39.8%Reduced
Exchange Traded Concepts, LLC7,368$1.75M0.05%−724−8.9%Reduced
Dai-Ichi Life Insurance Company, Ltd6,979$1.66M0.04%+4,040+137.5%Added
Aigen Investment Management, LP6,859$1.63M0.23%+4,936+256.7%Added
SG Americas Securities, LLC6,794$1.61M0.02%+5,575+457.3%Added
JustInvest LLC6,592$1.57M0.06%+726+12.4%Added
Moody Lynn & Lieberson, LLC6,390$1.52M0.14%+6,390New
KBC Group NV6,377$1.51M0.01%−1,449−18.5%Reduced
Values First Advisors, Inc.6,302$1.50M1.05%+35+0.6%Added
M&T Bank Corp6,209$1.48M0.01%−423−6.4%Reduced
Advisor Group Holdings, Inc.6,055$1.44M0.00%+2,851+89.0%Added
Jump Financial, LLC6,028$1.43M0.08%+4,704+355.3%Added
Prudential PLC5,714$1.36M0.02%+3,617+172.5%Added
Bokf, NA5,657$1.34M0.02%−2,350−29.3%Reduced
BI Asset Management Fondsmaeglerselskab A/S5,630$1.34M0.04%+2,721+93.5%Added
Panagora Asset Management Inc5,273$1.25M0.01%−1,079−17.0%Reduced
Allstate Corp5,228$1.24M0.04%+78+1.5%Added
Allstate Investment Management Co5,228$1.24M0.04%+5,228New
Commonwealth Equity Services, LLC5,207$1.24M0.00%+433+9.1%Added
Vontobel Holding Ltd.5,305$1.23M0.01%+459+9.5%Added
Raymond James Financial Services Advisors, Inc.5,147$1.22M0.00%−1,200−18.9%Reduced
First Hawaiian Bank5,123$1.22M0.04%−600−10.5%Reduced
Quattro Financial Advisors LLC5,000$1.19M0.47%+5,000New
AIA Group Ltd4,999$1.19M0.07%+1,075+27.4%Added
Aevitas Wealth Management, Inc.4,896$1.16M0.69%+169+3.6%Added
Brandywine Managers, LLC4,608$1.10M3.83%00.0%Unchanged
Endurant Capital Management LP4,596$1.09M0.44%+4,596New
Prudential Financial Inc4,579$1.09M0.00%−7,902−63.3%Reduced
Shell Asset Management Co4,516$1.07M0.05%−347−7.1%Reduced
Commerce Bank4,450$1.06M0.01%−27−0.6%Reduced
Bank of Nova Scotia4,411$1.05M0.00%+1,004+29.5%Added
Lakeview Capital Partners, LLC4,576$1.03M0.33%−1,889−29.2%Reduced
Oppenheimer & Co Inc4,324$1.03M0.02%+31+0.7%Added
Toroso Investments, LLC4,268$1.01M0.04%+1,827+74.8%Added
AtonRa Partners4,253$1.01M1.29%−1,776−29.5%Reduced
National Bank of Canada4,232$1.01M0.00%−2,351−35.7%Reduced
Achmea Investment Management B.V.4,492$1.00M0.03%+4,308+2,341.3%Added
CIBC Asset Management Inc4,107$976.0K0.00%−1,199−22.6%Reduced
Assetmark, Inc4,063$965.6K0.00%+1,271+45.5%Added
HighVista Strategies LLC4,056$963.9K0.57%−183−4.3%Reduced
Swiss Life Asset Management Ltd3,997$953.3K0.02%+2,238+127.2%Added
Orion Capital Management LLC4,005$951.8K0.70%−170−4.1%Reduced
J.P. Marvel Investment Advisors, LLC4,000$950.6K0.22%−8−0.2%Reduced
Howland Capital Management LLC4,000$950.6K0.06%00.0%Unchanged
Two Sigma Securities, LLC3,988$947.7K0.13%+881+28.4%Added
Atlantic Trust, LLC3,981$946.0K0.32%00.0%Unchanged
Westwood Holdings Group Inc.3,856$916.0K0.01%−4,940−56.2%Reduced
STRS Ohio3,623$861.0K0.00%+312+9.4%Added
Spectrum Planning & Advisory Services Inc.3,591$853.4K1.16%−44−1.2%Reduced
Sanders Morris Harris LLC3,500$831.8K0.31%00.0%Unchanged
Gotham Asset Management, LLC3,386$804.7K0.02%+3+0.1%Added
Private Advisory Group LLC3,351$796.4K0.17%+146+4.6%Added
VELA Investment Management, LLC3,325$790.2K0.39%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG3,324$789.9K0.01%+1,005+43.3%Added
PEAK6 Investments LLC3,313$787.3K0.04%−2,431−42.3%Reduced
Creative Planning3,263$775.5K0.00%+676+26.1%Added
D.A. Davidson & Co.3,249$772.1K0.01%+273+9.2%Added
Hall Laurie J Trustee3,250$772.0K0.35%00.0%Unchanged
Horizon Kinetics Asset Management LLC3,000$713.0K0.01%00.0%Unchanged
World Equity Group, Inc.2,974$706.8K0.17%−31−1.0%Reduced
Caption Management, LLC2,892$687.3K0.12%+1,892+189.2%Added
CI Private Wealth, LLC2,872$683.0K0.00%+2,872New
Vestcor Inc2,845$676.0K0.02%00.0%Unchanged
Banque Cantonale Vaudoise2,800$666.0K0.03%−3,500−55.6%Reduced
Western Financial Corp2,780$660.7K0.43%+2,780New
La Banque Postale Asset Management SA2,714$645.0K0.02%+2,714New
Impax Asset Management Group plc2,708$643.6K0.00%−954−26.1%Reduced
Greenleaf Trust2,699$641.0K0.01%+24+0.9%Added
Azzad Asset Management Inc2,695$640.5K0.10%+24+0.9%Added
Aureus Asset Management, LLC2,563$609.1K0.05%00.0%Unchanged
Emerald Advisers, LLC2,557$607.7K0.03%−43−1.7%Reduced
Brinker Capital Investments, LLC2,512$597.0K0.01%−141−5.3%Reduced
Metis Global Partners, LLC2,502$594.6K0.05%+1,157+86.0%Added
Veriti Management LLC2,470$587.0K0.08%+271+12.3%Added
Steel Peak Wealth Management LLC2,419$574.9K0.04%−1,047−30.2%Reduced
New York Life Investment Management LLC2,413$573.4K0.01%−29−1.2%Reduced
MML Investors Services, LLC2,412$573.0K0.00%+645+36.5%Added
Tokio Marine Asset Management Co Ltd2,393$568.7K0.04%+201+9.2%Added
Kestra Advisory Services, LLC2,338$555.6K0.00%+721+44.6%Added
Fullerton Fund Management Co Ltd.2,251$535.0K0.04%+2,251New
Squarepoint Ops LLC2,209$525.0K0.00%−35,541−94.1%Reduced
Motley Fool Asset Management LLC2,181$518.3K0.06%−198−8.3%Reduced
Souders Financial Advisors2,179$517.8K0.12%+512+30.7%Added
Monograph Wealth Advisors, LLC2,142$509.0K0.13%+16+0.8%Added
Los Angeles Capital Management LLC2,067$491.2K0.00%−4,045−66.2%Reduced
Boston Private Wealth LLC2,049$487.0K0.01%+128+6.7%Added
Glenmede Trust Co NA2,035$483.6K0.00%−16−0.8%Reduced
Aquila Investment Management LLC2,000$475.3K0.37%00.0%Unchanged
Segall Bryant & Hamill, LLC2,000$475.0K0.01%00.0%Unchanged
Security National Bank of So Dak2,000$475.0K0.34%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP1,965$467.0K0.01%00.0%Unchanged
CWM, LLC1,919$456.0K0.00%−1,044−35.2%Reduced