Institutional Ownership Alnylam Pharmaceuticals, Inc. (ALNY)
This table provides information about the institutional ownership of Alnylam Pharmaceuticals, Inc. (ALNY). We have compiled data on the 916 institutions that hold shares in the stock, with a total of 117 Million shares, which have been reported (via 13F filing form) to have a value of $52.6 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Capital World Investors
Los Angeles, CA |
Nov 13, 2025 Q3 2025 |
16,434,253
shares
|
$7.38 Billion
1.07% of portfolio
|
Q3 2025
Reduced 2.21%
|
|
|
Vanguard Group Inc
Valley Forge, PA |
Nov 07, 2025 Q3 2025 |
13,565,452
shares
|
$6.09 Billion
0.1% of portfolio
|
Q3 2025
Added 2.02%
|
|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
9,547,663
shares
|
$4.29 Billion
0.05% of portfolio
|
Q2 2024
Added 5.79%
|
|
|
Capital Research Global Investors
Los Angeles, CA |
Nov 13, 2025 Q3 2025 |
7,222,840
shares
|
$3.24 Billion
0.65% of portfolio
|
Q3 2025
Added 0.43%
|
|
|
Jpmorgan Chase & CO
New York, NY |
Nov 26, 2025 Q3 2025 |
4,543,770
shares
|
$2.04 Billion
0.14% of portfolio
|
Q3 2025
Added 104.78%
|
|
|
Groupama Asset Managment
Paris, I0 |
Dec 01, 2025 Q3 2025 |
4,032,082
shares
|
$1.81 Billion
0.27% of portfolio
|
Q3 2025
Added 160.41%
|
|
|
State Street Corp
Boston, MA |
Nov 14, 2025 Q3 2025 |
3,081,475
shares
|
$1.38 Billion
0.05% of portfolio
|
Q3 2025
Reduced 2.89%
|
|
|
Baillie Gifford & CO
|
Oct 31, 2025 Q3 2025 |
2,789,356
shares
|
$1.25 Billion
0.99% of portfolio
|
Q3 2025
Reduced 8.0%
|
|
|
Geode Capital Management, LLC
Boston, MA |
Nov 12, 2025 Q3 2025 |
2,499,242
shares
|
$1.12 Billion
0.08% of portfolio
|
Q3 2025
Added 4.19%
|
|
|
Dodge & Cox
San Francisco, CA |
Nov 13, 2025 Q3 2025 |
2,321,230
shares
|
$1.04 Billion
0.61% of portfolio
|
Q3 2025
Reduced 27.4%
|
|
|
T. Rowe Price Investment Management, Inc.
Baltimore, MD |
Nov 14, 2025 Q3 2025 |
2,173,984
shares
|
$976 Million
0.61% of portfolio
|
Q3 2025
Reduced 49.22%
|
|
|
Orbis Allan Gray LTD
Hamilton, D0 |
Nov 14, 2025 Q3 2025 |
1,950,962
shares
|
$876 Million
4.95% of portfolio
|
Q3 2025
Reduced 8.03%
|
|
|
Wellington Management Group LLP
Boston, MA |
Nov 14, 2025 Q3 2025 |
1,826,321
shares
|
$820 Million
0.15% of portfolio
|
Q3 2025
Reduced 12.02%
|
|
|
Price T Rowe Associates Inc
Baltimore, MD |
Nov 14, 2025 Q3 2025 |
1,800,294
shares
|
$809 Million
0.09% of portfolio
|
Q3 2025
Reduced 42.76%
|
|
|
American Century Companies Inc
Kansas City, MO |
Nov 12, 2025 Q3 2025 |
1,641,441
shares
|
$737 Million
0.4% of portfolio
|
Q3 2025
Reduced 8.5%
|
|
|
Bank Of America Corp
Charlotte, NC |
Nov 14, 2025 Q3 2025 |
1,498,491
shares
|
$673 Million
0.05% of portfolio
|
Q3 2025
Added 19.18%
|
|
|
Invesco Ltd.
Atlanta, GA |
Nov 13, 2025 Q3 2025 |
1,481,842
shares
|
$666 Million
0.11% of portfolio
|
Q3 2025
Added 10.45%
|
|
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
Nov 13, 2025 Q3 2025 |
1,355,609
shares
|
$609 Million
0.42% of portfolio
|
Q3 2025
Added 698.83%
|
|
|
Jane Street Group, LLC
New York, NY |
Nov 13, 2025 Q3 2025 |
958,750
shares
|
$431 Million
0.07% of portfolio
|
Q3 2025
Added 4094.74%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
Nov 14, 2025 Q3 2025 |
892,500
shares
|
$401 Million
0.87% of portfolio
|
Q3 2025
Added 235.4%
|
|
|
Legal & General Group PLC
London, X0 |
Nov 13, 2025 Q3 2025 |
887,780
shares
|
$399 Million
0.09% of portfolio
|
Q3 2025
Added 1.72%
|
|
|
Northern Trust Corp
Chicago, IL |
Nov 14, 2025 Q3 2025 |
833,151
shares
|
$374 Million
0.05% of portfolio
|
Q3 2025
Added 0.17%
|
|
|
Qube Research & Technologies LTD
London, X0 |
Nov 14, 2025 Q3 2025 |
811,278
shares
|
$364 Million
0.4% of portfolio
|
Q3 2025
New holding
|
|
|
Aqr Capital Management LLC
Greenwich, CT |
Nov 14, 2025 Q3 2025 |
744,008
shares
|
$334 Million
0.22% of portfolio
|
Q3 2025
Added 295.23%
|
|
|
Morgan Stanley
New York, NY |
Nov 14, 2025 Q3 2025 |
726,061
shares
|
$326 Million
0.02% of portfolio
|
Q3 2025
Reduced 5.82%
|
|