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Amphastar Pharmaceuticals
AMPH

Overview Fund Activity

239 hedge funds and large institutions have $750M invested in Amphastar Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 91 increasing their positions, 71 reducing their positions, and 40 closing their positions.

Holders
239
Holders Change
-2
Holders Change %
-0.83%
% of All Funds
3.21%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
43
Increased
91
Reduced
71
Closed
40
Calls
$447K
Puts
$381K
Net Calls
+$66K
Net Calls Change
-$235K

Top Buyers

1
Royal Bank of Canada
1
Royal Bank of Canada
Ontario, Canada
$7.32M
2
Dimensional Fund Advisors
2
Dimensional Fund Advisors
Texas
$37.4M
3
D.E. Shaw & Co
3
D.E. Shaw & Co
New York
$6.75M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$61.7M
5
Qube Research & Technologies (QRT)
5
Qube Research & Technologies (QRT)
United Kingdom
$10.8M

Top Sellers

1
Federated Hermes
1
Federated Hermes
Pennsylvania
$258K
2
Boston Partners
2
Boston Partners
Massachusetts
$0
3
BlackRock
3
BlackRock
New York
$130M
4
GIP
4
Granite Investment Partners
California
$0
5
ECM
5
ExodusPoint Capital Management
New York
$745K
Name Market Value Shares Shares
Change 		Shares
Change %
Allspring Global Investments
251
Allspring Global Investments
North Carolina
– – -15,326 Closed
Amundi
252
Amundi
France
– – -14,925 Closed
LPL Financial
253
LPL Financial
California
– – -14,300 Closed
Cambridge Investment Research Advisors
254
Cambridge Investment Research Advisors
Iowa
– – -13,790 Closed
Pathstone Holdings
255
Pathstone Holdings
New Jersey
– – -10,328 Closed
Envestnet Asset Management
256
Envestnet Asset Management
Illinois
– – -9,938 Closed
EC
257
EntryPoint Capital
New York
– – -8,498 Closed
SI
258
Shaker Investments
Ohio
– – -8,475 Closed
CWM
259
CIBC World Markets
New York
– – -8,399 Closed
QCG
260
Quadrant Capital Group
Ohio
– – -8,277 Closed
Rafferty Asset Management
261
Rafferty Asset Management
New York
– – -8,126 Closed
CIP
262
Cornerstone Investment Partners
Georgia
– – -8,028 Closed
HWAM
263
Hennion & Walsh Asset Management
New Jersey
– – -7,764 Closed
CI
264
Corient IA
Florida
– – -7,500 Closed
Corient Private Wealth
265
Corient Private Wealth
Florida
– – -7,230 Closed
TIA
266
Tiemann Investment Advisors
California
– – -6,962 Closed
FC
267
FORA Capital
Florida
– – -6,903 Closed
ECM
268
EMC Capital Management
Texas
– – -3,113 Closed
KBC Group
269
KBC Group
Belgium
– – -2,159 Closed
BAMF
270
BI Asset Management Fondsmaeglerselskab
Denmark
– – -1,359 Closed
CCM
271
Coldstream Capital Management
Washington
– – -334 Closed
CAL
272
Capital Advisors Ltd
Ohio
– – -75 Closed
CTWM
273
Cherry Tree Wealth Management
Minnesota
– – -58 Closed
SW
274
SVB Wealth
Massachusetts
– – -34 Closed
Barrow, Hanley, Mewhinney & Strauss
275
Barrow, Hanley, Mewhinney & Strauss
Texas
– – -20 Closed
8 9 10
11
12