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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, Q3 2022

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 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
497
+77 vs. Q2 2022
Shares held
133.4M
+19.9M (+17.5%) vs. Q2 2022
Total value
$26.7B
+$10.1B (+61.3%) vs. Q2 2022
New holders
117
171 more added
Sold out
40
151 more reduced

4 institutions that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2022: 497 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 heldQ3 2022: $26.7B
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, Q3 2022

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2022.

Institutions holding ALNY in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Mirae Asset Global Investments Co., Ltd.72,691$14.6M0.04%+4,920+7.3%Added
Alliancebernstein L.P.74,968$15.0M0.01%−600,039−88.9%Reduced
USS Investment Management Ltd76,803$15.4M0.24%−363−0.5%Reduced
Rhenman & Partners Asset Management AB75,000$15.5M1.63%00.0%Unchanged
Iron Triangle Partners LP80,000$16.0M2.80%+80,000New
Citadel Advisors LLC82,572$16.5M0.02%+74,878+973.2%Added
Bessemer Group Inc84,280$16.9M0.04%+84,256+351,066.7%Added
Treasurer of the State of North Carolina84,487$16.9M0.11%+500+0.6%Added
Voya Investment Management LLC85,694$17.2M0.02%+34,493+67.4%Added
Aviva PLC87,475$17.5M0.10%+4,610+5.6%Added
Duquesne Family Office LLCSuperinvestorDuquesne Family Office88,910$17.8M1.02%+88,910New
BNP Paribas Arbitrage, SA89,350$17.9M0.05%+32,229+56.4%Added
State of Wisconsin Investment Board90,369$18.1M0.06%−151,208−62.6%Reduced
DekaBank Deutsche Girozentrale88,391$18.4M0.05%+18,804+27.0%Added
Novo Holdings A/S100,000$20.0M0.96%+15,200+17.9%Added
Tang Capital Management LLC100,000$20.0M2.45%+100,000New
Senator Investment Group LP100,000$20.0M1.82%+100,000New
Tobam100,865$20.2M1.41%−79,236−44.0%Reduced
Cubist Systematic Strategies, LLC102,814$20.6M0.15%+96,603+1,555.4%Added
Credit Suisse AG113,509$22.7M0.03%−1,184−1.0%Reduced
Polar Capital Holdings Plc115,000$23.0M0.19%−98,079−46.0%Reduced
Skandinaviska Enskilda Banken AB (publ)116,439$23.3M0.19%+25,905+28.6%Added
CIBC Private Wealth Group, LLC119,408$23.9M0.06%+3,166+2.7%Added
HighTower Advisors, LLC126,864$25.4M0.07%−4,438−3.4%Reduced
Handelsbanken Fonder AB127,593$25.5M0.17%−44,407−25.8%Reduced
Rhumbline Advisers136,685$27.4M0.04%+8,174+6.4%Added
State Board of Administration of Florida Retirement System138,792$27.8M0.07%+195+0.1%Added
Barclays PLC141,354$28.3M0.03%+15,233+12.1%Added
Tekla Capital Management LLC143,214$28.7M1.17%+14,800+11.5%Added
New York State Common Retirement Fund148,018$29.6M0.04%−5,106−3.3%Reduced
D. E. Shaw & Co., Inc.151,144$30.3M0.05%+15,221+11.2%Added
Franklin Resources Inc159,295$31.9M0.02%+3,185+2.0%Added
Eagle Health Investments LP161,716$32.4M7.43%+12,336+8.3%Added
National Pension Service156,987$32.9M0.07%−23,911−13.2%Reduced
Millennium Management LLC172,770$34.6M0.04%+168,318+3,780.7%Added
Dimensional Fund Advisors LP176,266$35.3M0.01%+2,841+1.6%Added
Citigroup Inc184,030$36.8M0.05%+44,038+31.5%Added
AXA S.A.187,840$37.6M0.15%−10,618−5.4%Reduced
California State Teachers Retirement System198,351$39.7M0.07%−1,620−0.8%Reduced
Two Sigma Investments, LP216,712$43.4M0.15%+216,712New
Natixis226,034$45.3M0.21%+218,295+2,820.7%Added
Bank of America Corp237,809$47.6M0.01%−4,288−1.8%Reduced
OrbiMed Advisors LLC250,500$50.1M1.00%+250,500New
Deutsche Bank AG253,684$50.8M0.03%+6,437+2.6%Added
Eagle Asset Management Inc263,520$52.7M0.34%+2,217+0.8%Added
California Public Employees Retirement System269,760$54.0M0.05%+33,205+14.0%Added
Jane Street Group, LLC272,989$54.6M0.10%+143,137+110.2%Added
Avidity Partners Management LP288,500$57.7M1.26%+288,500New
Eaton Vance Management307,288$61.5M0.09%+537+0.2%Added
Rock Springs Capital Management LP332,500$66.6M1.72%00.0%Unchanged
Sumitomo Mitsui Trust Holdings, Inc.338,685$67.8M0.06%+843+0.2%Added
Candriam Luxembourg S.C.A.353,048$70.7M0.50%+9,835+2.9%Added
Charles Schwab Investment Management Inc378,865$75.8M0.03%+2,568+0.7%Added
1832 Asset Management L.P.387,145$77.5M0.17%+386,600+70,935.8%Added
TD Asset Management Inc384,811$80.6M0.10%−15,457−3.9%Reduced
Swedbank AB416,060$83.3M0.20%−23,152−5.3%Reduced
Farallon Capital Management, L.L.C.428,456$85.8M0.52%−359,454−45.6%Reduced
Goldman Sachs Group Inc465,307$93.1M0.03%−12,067−2.5%Reduced
Mitsubishi UFJ Trust & Banking Corp474,648$95.0M0.27%+572+0.1%Added
Adage Capital Partners GP, L.L.C.485,000$97.1M0.24%+315,000+185.3%Added
First Trust Advisors LP494,932$99.1M0.13%+95,067+23.8%Added
Lord, Abbett & Co. LLC519,132$103.9M0.38%+519,132New
Swiss National Bank523,610$104.8M0.07%+2,200+0.4%Added
Massachusetts Financial Services Co535,599$107.2M0.04%+191,310+55.6%Added
Bank of New York Mellon Corp567,138$113.5M0.03%−108,017−16.0%Reduced
Janus Henderson Group PLC574,504$115.0M0.09%+124,791+27.7%Added
UBS Asset Management Americas Inc603,532$120.8M0.07%+10,310+1.7%Added
Holocene Advisors, LP643,649$128.8M0.83%+643,649New
Casdin Capital, LLC648,000$129.7M8.56%−157,000−19.5%Reduced
Gilder Gagnon Howe & Co LLC663,983$132.9M2.32%−90,592−12.0%Reduced
Pictet Asset Management SA675,809$135.3M0.20%−5,180−0.8%Reduced
American Century Companies Inc693,007$138.7M0.12%+118,066+20.5%Added
Northern Trust Corp733,992$146.9M0.03%−2,945−0.4%Reduced
Invesco Ltd.737,830$147.7M0.05%+568,999+337.0%Added
Loomis Sayles & Co L P747,750$149.7M0.30%−80,329−9.7%Reduced
Legal & General Group Plc754,492$151.0M0.06%−24,456−3.1%Reduced
Manufacturers Life Insurance Company, The910,560$183.0M0.13%−745,275−45.0%Reduced
Bellevue Group AG956,762$191.5M2.75%−101,424−9.6%Reduced
Avoro Capital Advisors LLC1,105,000$221.2M4.09%−255,000−18.8%Reduced
Amundi1,195,909$240.4M0.14%+289,375+31.9%Added
Norges Bank1,218,184$243.8M0.06%−66,593−5.2%Reduced
Morgan Stanley1,498,759$300.0M0.04%+370,144+32.8%Added
Geode Capital Management, LLC1,599,474$319.9M0.05%+26,771+1.7%Added
RTW Investments, LP1,683,362$336.9M7.77%00.0%Unchanged
Capital International Investors1,946,714$389.7M0.11%+312,477+19.1%Added
JPMorgan Chase & Co2,545,032$509.4M0.08%+261,395+11.4%Added
State Street Corp2,795,485$559.5M0.04%−193,374−6.5%Reduced
T. Rowe Price Investment Management, Inc.3,192,184$638.9M0.51%+3,192,184New
Price T Rowe Associates Inc3,720,606$744.7M0.12%−3,276,476−46.8%Reduced
Dodge & Cox4,889,297$978.6M0.74%−369,659−7.0%Reduced
Wellington Management Group LLP5,954,293$1.19B0.25%+141,423+2.4%Added
BlackRock Inc.7,668,678$1.53B0.05%+6,003+0.1%Added
Baillie Gifford & Co9,514,758$1.90B1.96%−453,676−4.6%Reduced
Vanguard Group Inc11,053,308$2.21B0.07%+10,870+0.1%Added
FMR LLC12,949,758$2.59B0.27%−1,374,991−9.6%Reduced
Capital World Investors13,949,647$2.79B0.63%+3,658,635+35.6%Added
Nuveen Asset Management, LLC16,593,268$3.32B1.35%+16,296,223+5,486.1%Added
Artal Group S.A.0$00.00%−600,000−100.0%Sold out
Perceptive Advisors LLC0$00.00%−172,991−100.0%Sold out
Marshall Wace, LLP0$00.00%−165,292−100.0%Sold out