Latest Institutional Purchases of Alnylam Pharmaceuticals, Inc. (ALNY)
This list provides information on the latest institutional transactions involving Alnylam Pharmaceuticals, Inc. (ALNY) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Jan 09, 2026
Q4 2025
|
Congress Asset Management CO
|
BUY
|
- |
150K+ 126.63% |
$63.7M - $73.9M
|
269K
$121M
|
|
|
Jan 09, 2026
Q4 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
59.1K+ 185.47% |
$25M - $29M
|
90.9K
$40.8M
|
|
|
Jan 16, 2026
Q4 2025
|
Louisiana State Employees Retirement System
|
BUY
|
- |
8.8KNew |
$3.73M - $4.32M
|
8.8K
$3.95M
|
|
|
Jan 20, 2026
Q4 2025
|
Perpetual LTD
Sydney, New South Wales, C3 |
BUY
|
- |
5.04KNew |
$2.13M - $2.48M
|
5.04K
$2.26M
|
|
|
Jan 12, 2026
Q4 2025
|
Davenport & CO LLC
|
BUY
|
- |
1.76KNew |
$745K - $864K
|
1.76K
$790K
|
|
|
Jan 14, 2026
Q4 2025
|
Wealthcare Advisory Partners LLC
West Chester, PA |
BUY
|
- |
1.31KNew |
$555K - $644K
|
1.31K
$589K
|
|
|
Jan 14, 2026
Q4 2025
|
Private Advisory Group LLC
Redmond, WA |
BUY
|
- |
736+ 51.87% |
$312K - $362K
|
2.16K
$968K
|
|
|
Jan 12, 2026
Q4 2025
|
Traynor Capital Management, Inc.
|
BUY
|
- |
697+ 6.41% |
$295K - $342K
|
11.6K
$5.2M
|
|
|
Jan 14, 2026
Q4 2025
|
Northwest Wealth Management, LLC
|
BUY
|
- |
565New |
$239K - $278K
|
565
$254K
|
|
|
Jan 12, 2026
Q4 2025
|
Perkins Coie Trust CO
|
BUY
|
- |
500New |
$212K - $246K
|
500
$225K
|
|
|
Jan 14, 2026
Q4 2025
|
Usa Financial Portformulas Corp
Ada, MI |
BUY
|
- |
424New |
$180K - $208K
|
424
$190K
|
|
|
Jan 08, 2026
Q4 2025
|
Nordea Investment Management Ab
Stockholm, V7 |
BUY
|
- |
374+ 3.0% |
$158K - $184K
|
12.9K
$5.77M
|
|
|
Jan 20, 2026
Q4 2025
|
Sara Bay Financial
|
BUY
|
- |
300+ 20.69% |
$127K - $147K
|
1.75K
$786K
|
|
|
Jan 14, 2026
Q4 2025
|
Exchange Traded Concepts, LLC
|
BUY
|
- |
288+ 13.89% |
$122K - $141K
|
2.36K
$1.06M
|
|
|
Jan 14, 2026
Q4 2025
|
Kaufman Rossin Wealth, LLC
Miami, FL |
BUY
|
- |
266+ 55.07% |
$113K - $131K
|
749
$336K
|
|
|
Jan 20, 2026
Q4 2025
|
Ascent Group, LLC
|
BUY
|
- |
171+ 27.4% |
$72.4K - $84K
|
795
$357K
|
|
|
Jan 08, 2026
Q4 2025
|
North Crest Asset Manangement, LLC
|
BUY
|
- |
128+ 7.98% |
$54.2K - $62.9K
|
1.73K
$778K
|
|
|
Jan 14, 2026
Q4 2025
|
Eastern Bank
|
BUY
|
- |
105New |
$44.5K - $51.6K
|
105
$47.2K
|
|
|
Jan 15, 2026
Q4 2025
|
Le Conte Wealth Management, LLC
Maryville, TN |
BUY
|
- |
78+ 14.83% |
$33K - $38.3K
|
604
$271K
|
|
|
Jan 02, 2026
Q4 2025
|
Gamma Investing LLC
Foster City, CA |
BUY
|
- |
70+ 8.51% |
$29.6K - $34.4K
|
893
$401K
|
|
|
Jan 08, 2026
Q4 2025
|
Wedmont Private Capital
|
BUY
|
- |
58+ 5.5% |
$24.6K - $28.5K
|
1.11K
$500K
|
|
|
Jan 07, 2026
Q4 2025
|
Everpar Advisors LLC
Tulsa, OK |
BUY
|
- |
37+ 6.35% |
$15.7K - $18.2K
|
620
$278K
|
|
|
Jan 08, 2026
Q4 2025
|
Versant Capital Management, Inc
|
BUY
|
- |
24+ 6.12% |
$10.2K - $11.8K
|
416
$187K
|
|
|
Jan 13, 2026
Q4 2025
|
Jfs Wealth Advisors, LLC
|
BUY
|
- |
10+ 28.57% |
$4.23K - $4.91K
|
45
$20.2K
|
|
|
Jan 08, 2026
Q4 2025
|
Grove Bank & Trust
|
BUY
|
- |
9New |
$3.81K - $4.42K
|
9
$4.04K
|
|
|
Jan 16, 2026
Q4 2025
|
First Pacific Financial
|
BUY
|
- |
8New |
$3.39K - $3.93K
|
8
$3.59K
|
|
|
Jan 20, 2026
Q4 2025
|
American National Bank
|
BUY
|
- |
6New |
$2.54K - $2.95K
|
6
$2.69K
|
|
|
Jan 08, 2026
Q4 2025
|
Zrc Wealth Management, LLC
Santa Rosa, CA |
BUY
|
- |
6New |
$2.54K - $2.95K
|
6
$2.69K
|
|
|
Jan 15, 2026
Q4 2025
|
Lodestone Wealth Management LLC
Spokane, WA |
BUY
|
- |
5New |
$2.12K - $2.46K
|
5
$2.25K
|
|
|
Jan 02, 2026
Q4 2025
|
Rosenberg Matthew Hamilton
|
BUY
|
- |
3New |
$1.27K - $1.47K
|
3
$1.35K
|
|
|
Jan 20, 2026
Q4 2025
|
Toth Financial Advisory Corp
|
BUY
|
- |
1+ 11.11% |
$423 - $491
|
10
$4.49K
|
|
| Q3 2025 | |||||||
|
Dec 01, 2025
Q3 2025
|
Groupama Asset Managment
Paris, I0 |
BUY
|
- |
2.48M+ 160.41% |
$773M - $1.2B
|
4.03M
$1.81B
|
|
|
Nov 07, 2025
Q3 2025
|
Jpmorgan Chase & CO
New York, NY |
BUY
|
- |
2.32M+ 104.78% |
$723M - $1.12B
|
4.54M
$2.04B
|
|
|
Nov 13, 2025
Q3 2025
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
BUY
|
- |
1.19M+ 698.83% |
$369M - $572M
|
1.36M
$609M
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
936K+ 4094.74% |
$291M - $451M
|
959K
$431M
|
|
|
Nov 14, 2025
Q3 2025
|
Qube Research & Technologies LTD
London, X0 |
BUY
|
- |
811KNew |
$252M - $391M
|
811K
$364M
|
|
|
Nov 14, 2025
Q3 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
BUY
|
- |
626K+ 235.4% |
$195M - $302M
|
893K
$401M
|
|
|
Nov 14, 2025
Q3 2025
|
Aqr Capital Management LLC
Greenwich, CT |
BUY
|
- |
556K+ 295.23% |
$173M - $268M
|
744K
$334M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
BUY
|
- |
459K+ 508.03% |
$143M - $222M
|
550K
$247M
|
|
|
Nov 17, 2025
Q3 2025
|
Jacobs Levy Equity Management, Inc
Florham Park, NJ |
BUY
|
- |
393K+ 2221.73% |
$122M - $189M
|
410K
$184M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
369K+ 177.36% |
$115M - $178M
|
578K
$259M
|
|
|
Oct 29, 2025
Q3 2025
|
Massachusetts Financial Services CO
Boston, MA |
BUY
|
- |
357KNew |
$111M - $172M
|
357K
$160M
|
|
|
Nov 14, 2025
Q3 2025
|
Voloridge Investment Management, LLC
Jupiter, FL |
BUY
|
- |
349K+ 4532.64% |
$109M - $168M
|
357K
$160M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna Advisors Group, Inc.
Bala Cynwyd, PA |
BUY
|
- |
286KNew |
$89M - $138M
|
286K
$129M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna Advisors Group, Inc.
Bala Cynwyd, PA |
BUY
|
PUT |
276KNew |
$85.8M - $133M
|
276K
$124M
|
|
|
Nov 14, 2025
Q3 2025
|
Hrt Financial LP
New York, NY |
BUY
|
- |
274K+ 1529.39% |
$85.1M - $132M
|
291K
$131M
|
|
|
Nov 13, 2025
Q3 2025
|
Marshall Wace, LLP
London, X0 |
BUY
|
- |
270K+ 113.09% |
$83.9M - $130M
|
508K
$228M
|
|
|
Nov 07, 2025
Q3 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
268K+ 2.02% |
$83.5M - $129M
|
13.6M
$6.09B
|
|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
253K+ 73.59% |
$78.6M - $122M
|
596K
$268M
|
|
|
Nov 14, 2025
Q3 2025
|
Bank Of America Corp
Charlotte, NC |
BUY
|
- |
241K+ 19.18% |
$75M - $116M
|
1.5M
$673M
|
|