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 |
|---|---|---|---|---|---|---|---|
|
Aug 13, 2025
Q2 2025
|
Norges Bank
Oslo, Q8 |
BUY
|
- |
2.03MNew |
$456M - $663M
|
2.03M
$874M
|
|
|
Aug 14, 2025
Q2 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
597K+ 14092.61% |
$134M - $195M
|
601K
$258M
|
|
|
Aug 14, 2025
Q2 2025
|
Holocene Advisors, LP
New York, NY |
BUY
|
- |
597KNew |
$134M - $195M
|
597K
$257M
|
|
|
Aug 12, 2025
Q2 2025
|
Clearbridge Investments, LLC
New York, NY |
BUY
|
- |
549K+ 7063.42% |
$123M - $179M
|
557K
$240M
|
|
|
Aug 14, 2025
Q2 2025
|
Macquarie Group LTD
Australia, C3 |
BUY
|
- |
528K+ 726.69% |
$118M - $172M
|
600K
$258M
|
|
|
Aug 14, 2025
Q2 2025
|
Orbis Allan Gray LTD
Hamilton, D0 |
BUY
|
- |
486K+ 29.76% |
$109M - $159M
|
2.12M
$912M
|
|
|
Aug 14, 2025
Q2 2025
|
Woodline Partners LP
San Francisco, CA |
BUY
|
- |
467K+ 298.25% |
$105M - $152M
|
623K
$268M
|
|
|
Aug 13, 2025
Q2 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
428K+ 46.83% |
$96M - $140M
|
1.34M
$577M
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Group Ag
|
BUY
|
- |
265K+ 95.05% |
$59.4M - $86.4M
|
543K
$234M
|
|
|
Aug 11, 2025
Q2 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
241K+ 1.84% |
$54M - $78.4M
|
13.3M
$5.72B
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Asset Management Americas Inc
Chicago, IL |
BUY
|
- |
222K+ 30.19% |
$49.8M - $72.5M
|
958K
$412M
|
|
|
Aug 14, 2025
Q2 2025
|
Bank Of America Corp
Charlotte, NC |
BUY
|
- |
193K+ 18.11% |
$43.2M - $62.9M
|
1.26M
$541M
|
|
|
Aug 08, 2025
Q2 2025
|
Kbc Group Nv
|
BUY
|
- |
174K+ 902.23% |
$39.1M - $56.8M
|
194K
$83.2M
|
|
|
Aug 13, 2025
Q2 2025
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
BUY
|
- |
166K+ 4084.96% |
$37.2M - $54M
|
170K
$73M
|
|
|
Aug 14, 2025
Q2 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
146K+ 73.9% |
$32.7M - $47.6M
|
343K
$148M
|
|
|
Aug 12, 2025
Q2 2025
|
Franklin Resources Inc
San Mateo, CA |
BUY
|
- |
143K+ 31.21% |
$32.1M - $46.6M
|
601K
$259M
|
|
|
Aug 14, 2025
Q2 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
138K+ 195.55% |
$30.9M - $44.9M
|
208K
$89.5M
|
|
|
Aug 15, 2025
Q2 2025
|
Morgan Stanley
New York, NY |
BUY
|
- |
129K+ 20.13% |
$29M - $42.1M
|
771K
$331M
|
|
|
Aug 14, 2025
Q2 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
122K+ 28.8% |
$27.4M - $39.8M
|
545K
$234M
|
|
|
Aug 14, 2025
Q2 2025
|
Voya Investment Management LLC
Atlanta, GA |
BUY
|
- |
120K+ 131.55% |
$26.9M - $39.1M
|
211K
$90.7M
|
|
|
Aug 13, 2025
Q2 2025
|
Victory Capital Management Inc
|
BUY
|
- |
119K+ 315.13% |
$26.6M - $38.7M
|
156K
$67.2M
|
|
|
Aug 14, 2025
Q2 2025
|
Soleus Capital Management, L.P.
Greenwich, CT |
BUY
|
- |
107KNew |
$23.9M - $34.8M
|
107K
$45.9M
|
|
|
Aug 14, 2025
Q2 2025
|
Balyasny Asset Management LLC
Chicago, IL |
BUY
|
- |
102K+ 778.89% |
$22.9M - $33.3M
|
115K
$49.6M
|
|
|
Aug 14, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
93.6K+ 27.76% |
$21M - $30.5M
|
431K
$185M
|
|
|
Aug 14, 2025
Q2 2025
|
683 Capital Management, LLC
New York, NY |
BUY
|
PUT |
90.1K+ 175.98% |
$20.2M - $29.4M
|
141K
$60.7M
|
|
|
Aug 14, 2025
Q2 2025
|
Tri Locum Partners LP
New York, NY |
BUY
|
- |
89.5KNew |
$20.1M - $29.2M
|
89.5K
$38.5M
|
|
|
Aug 14, 2025
Q2 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
84.5K+ 77.44% |
$19M - $27.6M
|
194K
$83.3M
|
|
|
Aug 13, 2025
Q2 2025
|
1832 Asset Management L.P.
Toronto, A6 |
BUY
|
- |
79.3K+ 55.05% |
$17.8M - $25.9M
|
223K
$96M
|
|
|
Aug 08, 2025
Q2 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
75.9K+ 3.27% |
$17M - $24.8M
|
2.4M
$1.03B
|
|
|
Aug 12, 2025
Q2 2025
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
BUY
|
- |
72.3K+ 12.53% |
$16.2M - $23.6M
|
649K
$279M
|
|
|
Aug 13, 2025
Q2 2025
|
First Trust Advisors LP
Wheaton, IL |
BUY
|
- |
71.4K+ 39.54% |
$16M - $23.3M
|
252K
$108M
|
|
|
Aug 14, 2025
Q2 2025
|
Zurich Insurance Group LTD
Zurich, V8 |
BUY
|
- |
67.8KNew |
$15.2M - $22.1M
|
67.8K
$29.1M
|
|
|
Aug 13, 2025
Q2 2025
|
Federated Hermes, Inc.
Pittsburgh, PA |
BUY
|
- |
59.7K+ 22.59% |
$13.4M - $19.5M
|
324K
$139M
|
|
|
Aug 14, 2025
Q2 2025
|
Schonfeld Strategic Advisors LLC
New York, NY |
BUY
|
- |
55.7K+ 1806.46% |
$12.5M - $18.2M
|
58.8K
$25.3M
|
|
|
Aug 13, 2025
Q2 2025
|
Capital World Investors
Los Angeles, CA |
BUY
|
- |
55.4K+ 0.33% |
$12.4M - $18.1M
|
16.8M
$7.22B
|
|
|
Aug 11, 2025
Q2 2025
|
Citigroup Inc
|
BUY
|
- |
53.5K+ 27.48% |
$12M - $17.4M
|
248K
$107M
|
|
|
Jul 25, 2025
Q2 2025
|
Allspring Global Investments Holdings, LLC
|
BUY
|
- |
41.3K+ 15.24% |
$9.26M - $13.5M
|
312K
$134M
|
|
|
Aug 01, 2025
Q2 2025
|
Jennison Associates LLC
|
BUY
|
- |
40.9K+ 13.21% |
$9.16M - $13.3M
|
350K
$151M
|
|
|
Aug 06, 2025
Q2 2025
|
Parnassus Investments, LLC
|
BUY
|
- |
37.4KNew |
$8.39M - $12.2M
|
37.4K
$16.1M
|
|
|
Aug 13, 2025
Q2 2025
|
Capital Research Global Investors
Los Angeles, CA |
BUY
|
- |
36.9K+ 0.52% |
$8.28M - $12M
|
7.19M
$3.09B
|
|
|
Aug 13, 2025
Q2 2025
|
Walleye Capital LLC
Plymouth, MN |
BUY
|
- |
36.3K+ 1533.54% |
$8.15M - $11.9M
|
38.7K
$16.6M
|
|
|
Aug 08, 2025
Q2 2025
|
Cercano Management LLC
Bellevue, WA |
BUY
|
- |
36.2K+ 174.18% |
$8.12M - $11.8M
|
57K
$24.5M
|
|
|
Aug 13, 2025
Q2 2025
|
Rosenblum Silverman Sutton S F Inc
San Francisco, CA |
BUY
|
- |
34.4KNew |
$7.71M - $11.2M
|
34.4K
$14.8M
|
|
|
Aug 12, 2025
Q2 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
33.4K+ 1.9% |
$7.49M - $10.9M
|
1.79M
$771M
|
|
|
Jul 22, 2025
Q2 2025
|
Amf Tjanstepension Ab
|
BUY
|
- |
32.5KNew |
$7.3M - $10.6M
|
32.5K
$14M
|
|
|
Aug 14, 2025
Q2 2025
|
Sei Investments CO
Oaks, PA |
BUY
|
- |
31.3K+ 11.27% |
$7.01M - $10.2M
|
309K
$133M
|
|
|
Aug 14, 2025
Q2 2025
|
Fil LTD
Hamilton, D0 |
BUY
|
- |
30.1K+ 25.52% |
$6.75M - $9.81M
|
148K
$63.6M
|
|
|
Aug 14, 2025
Q2 2025
|
Caption Management, LLC
Oklahoma City, OK |
BUY
|
PUT |
30KNew |
$6.73M - $9.78M
|
30K
$12.9M
|
|
|
Aug 13, 2025
Q2 2025
|
Atika Capital Management LLC
New York, NY |
BUY
|
- |
27.7KNew |
$6.21M - $9.03M
|
27.7K
$11.9M
|
|
|
Aug 14, 2025
Q2 2025
|
Ikarian Capital, LLC
Dallas, TX |
BUY
|
- |
25K+ 79.13% |
$5.61M - $8.15M
|
56.6K
$24.3M
|