Latest Institutional Purchases of Alkermes Plc. (ALKS)
This list provides information on the latest institutional transactions involving Alkermes Plc. (ALKS) 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 |
|---|---|---|---|---|---|---|---|
|
Nov 14, 2025
Q3 2025
|
Baker Bros. Advisors LP
New York, NY |
BUY
|
- |
1.68M+ 26.22% |
$43.9M - $51.2M
|
8.09M
$235M
|
|
|
Nov 13, 2025
Q3 2025
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
BUY
|
- |
1.11M+ 1070.57% |
$28.9M - $33.7M
|
1.21M
$35.1M
|
|
|
Oct 20, 2025
Q3 2025
|
Virginia Retirement Systems Et Al
Richmond, VA |
BUY
|
- |
901KNew |
$23.6M - $27.5M
|
901K
$26.2M
|
|
|
Nov 12, 2025
Q3 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
740K+ 20.24% |
$19.3M - $22.5M
|
4.4M
$128M
|
|
|
Nov 13, 2025
Q3 2025
|
Sio Capital Management, LLC
New York, NY |
BUY
|
- |
675KNew |
$17.6M - $20.6M
|
675K
$19.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
667K+ 1783.42% |
$17.4M - $20.3M
|
705K
$20.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Commodore Capital LP
New York, NY |
BUY
|
- |
647K+ 26.4% |
$16.9M - $19.7M
|
3.1M
$89.9M
|
|
|
Nov 18, 2025
Q3 2025
|
Pictet Asset Management Holding Sa
Carouge, V8 |
BUY
|
- |
624K+ 231.78% |
$16.3M - $19M
|
893K
$25.9M
|
|
|
Nov 14, 2025
Q3 2025
|
Man Group PLC
London, X0 |
BUY
|
- |
621K+ 225.31% |
$16.2M - $18.9M
|
897K
$26.1M
|
|
|
Nov 12, 2025
Q3 2025
|
Dimensional Fund Advisors LP
Austin, TX |
BUY
|
- |
601K+ 19.42% |
$15.7M - $18.3M
|
3.7M
$107M
|
|
|
Nov 04, 2025
Q3 2025
|
Allianz Asset Management Gmb H
Munich, 2M |
BUY
|
- |
512K+ 3908.21% |
$13.4M - $15.6M
|
525K
$15.2M
|
|
|
Nov 13, 2025
Q3 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
BUY
|
- |
482K+ 8.3% |
$12.6M - $14.7M
|
6.29M
$183M
|
|
|
Nov 12, 2025
Q3 2025
|
Artisan Partners Limited Partnership
Milwaukee, WI |
BUY
|
- |
474K+ 28.94% |
$12.4M - $14.4M
|
2.11M
$61.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Opaleye Management Inc.
Boston, MA |
BUY
|
- |
450KNew |
$11.8M - $13.7M
|
450K
$13.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Squarepoint Ops LLC
New York, NY |
BUY
|
- |
396K+ 803.86% |
$10.3M - $12.1M
|
445K
$12.9M
|
|
|
Nov 14, 2025
Q3 2025
|
Caption Management, LLC
Oklahoma City, OK |
BUY
|
CALL |
391KNew |
$10.2M - $11.9M
|
391K
$11.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Paradigm Biocapital Advisors LP
New York, NY |
BUY
|
- |
344K+ 24.99% |
$8.98M - $10.5M
|
1.72M
$49.9M
|
|
|
Nov 14, 2025
Q3 2025
|
State Street Corp
Boston, MA |
BUY
|
- |
332K+ 4.05% |
$8.68M - $10.1M
|
8.54M
$248M
|
|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
331K+ 101.44% |
$8.64M - $10.1M
|
656K
$19.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
327K+ 19.62% |
$8.55M - $9.97M
|
1.99M
$57.9M
|
|
|
Nov 13, 2025
Q3 2025
|
Affinity Asset Advisors, LLC
New York, NY |
BUY
|
- |
250K+ 25.0% |
$6.53M - $7.62M
|
1.25M
$36.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Axa Investment Managers S.A.
Puteaux, I0 |
BUY
|
- |
237KNew |
$6.19M - $7.22M
|
237K
$6.88M
|
|
|
Nov 14, 2025
Q3 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
BUY
|
- |
197K+ 2530.77% |
$5.16M - $6.01M
|
205K
$5.96M
|
|
|
Nov 14, 2025
Q3 2025
|
Price T Rowe Associates Inc
Baltimore, MD |
BUY
|
- |
196K+ 1.96% |
$5.13M - $5.98M
|
10.2M
$297M
|
|
|
Nov 12, 2025
Q3 2025
|
Edgestream Partners, L.P.
Princeton, NJ |
BUY
|
- |
186K+ 251.04% |
$4.85M - $5.65M
|
259K
$7.53M
|
|
|
Nov 12, 2025
Q3 2025
|
Silverarc Capital Management, LLC
|
BUY
|
- |
181KNew |
$4.72M - $5.5M
|
181K
$5.24M
|
|
|
Nov 13, 2025
Q3 2025
|
Mackenzie Financial Corp
Toronto Ontario, A6 |
BUY
|
- |
152K+ 52.36% |
$3.97M - $4.63M
|
442K
$12.8M
|
|
|
Nov 14, 2025
Q3 2025
|
Janus Henderson Group PLC
London, X0 |
BUY
|
- |
140K+ 68.38% |
$3.66M - $4.26M
|
344K
$10M
|
|
|
Nov 14, 2025
Q3 2025
|
Voloridge Investment Management, LLC
Jupiter, FL |
BUY
|
- |
133K+ 101.21% |
$3.48M - $4.05M
|
264K
$7.68M
|
|
|
Nov 12, 2025
Q3 2025
|
Nuveen, LLC
Charlotte, NC |
BUY
|
- |
125K+ 6.12% |
$3.28M - $3.82M
|
2.17M
$63.1M
|
|
|
Nov 12, 2025
Q3 2025
|
Handelsbanken Fonder Ab
|
BUY
|
- |
115K+ 53.04% |
$3.01M - $3.51M
|
332K
$9.64M
|
|
|
Nov 14, 2025
Q3 2025
|
Rock Springs Capital Management LP
Baltimore, MD |
BUY
|
- |
107KNew |
$2.78M - $3.25M
|
107K
$3.09M
|
|
|
Nov 12, 2025
Q3 2025
|
Victory Capital Management Inc
|
BUY
|
- |
104K+ 43.15% |
$2.71M - $3.16M
|
344K
$10M
|
|
|
Nov 13, 2025
Q3 2025
|
Franklin Resources Inc
San Mateo, CA |
BUY
|
- |
90.3K+ 96.09% |
$2.36M - $2.75M
|
184K
$5.35M
|
|
|
Nov 14, 2025
Q3 2025
|
Exodus Point Capital Management, LP
New York, NY |
BUY
|
- |
88.3K+ 54.74% |
$2.31M - $2.69M
|
250K
$7.25M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
PUT |
88K+ 60.77% |
$2.3M - $2.68M
|
233K
$6.76M
|
|
|
Nov 07, 2025
Q3 2025
|
Eagle Health Investments LP
Greenwich, CT |
BUY
|
- |
81.8KNew |
$2.14M - $2.49M
|
81.8K
$2.38M
|
|
|
Nov 13, 2025
Q3 2025
|
Capital Fund Management S.A.
Paris, I0 |
BUY
|
- |
81K+ 202.94% |
$2.12M - $2.47M
|
121K
$3.51M
|
|
|
Nov 14, 2025
Q3 2025
|
Tfg Asset Management Gp LTD
Grand Cayman, E9 |
BUY
|
- |
74K+ 473.26% |
$1.93M - $2.25M
|
89.6K
$2.6M
|
|
|
Nov 06, 2025
Q3 2025
|
Public Sector Pension Investment Board
Montreal, A8 |
BUY
|
- |
73.8K+ 11.59% |
$1.93M - $2.25M
|
711K
$20.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Diadema Partners LP
Morristown, NJ |
BUY
|
- |
72.1KNew |
$1.88M - $2.2M
|
72.1K
$2.09M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
BUY
|
- |
69.5K+ 89.2% |
$1.82M - $2.12M
|
147K
$4.28M
|
|
|
Nov 14, 2025
Q3 2025
|
Paul Tudor Jones
Tudor Investment Corp Et Al | Stamford, Ct
|
BUY
|
- |
56.4KNew |
$1.47M - $1.72M
|
56.4K
$1.64M
|
|
|
Nov 13, 2025
Q3 2025
|
Rhenman & Partners Asset Management Ab
Stockholm, V7 |
BUY
|
- |
55K+ 141.03% |
$1.44M - $1.68M
|
94K
$2.73M
|
|
|
Nov 03, 2025
Q3 2025
|
New York State Common Retirement Fund
|
BUY
|
- |
54.9K+ 38.92% |
$1.43M - $1.67M
|
196K
$5.69M
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
PUT |
50.8K+ 445.61% |
$1.33M - $1.55M
|
62.2K
$1.81M
|
|
|
Nov 13, 2025
Q3 2025
|
Met Life Investment Management, LLC
Whippany, NJ |
BUY
|
- |
50.5K+ 7.7% |
$1.32M - $1.54M
|
707K
$20.5M
|
|
|
Nov 12, 2025
Q3 2025
|
Globeflex Capital L P
San Diego, CA |
BUY
|
- |
50.4K+ 319.29% |
$1.32M - $1.54M
|
66.2K
$1.92M
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
PUT |
49.4KNew |
$1.29M - $1.5M
|
49.4K
$1.43M
|
|
|
Nov 10, 2025
Q3 2025
|
Charles Schwab Investment Management Inc
San Francisco, CA |
BUY
|
- |
48.3K+ 2.31% |
$1.26M - $1.47M
|
2.14M
$62.2M
|
|