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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 %
DM
151
Deerfield Management
New York
$220K 9,579 +9,579 New
CUAMC
152
China Universal Asset Management Company
China
$217K 9,468 -176 -2%
COPPSERS
153
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$217K 9,440 +465 +5%
VI
154
Vestcor Inc
New Brunswick, Canada
$215K 9,383 – –
State of Tennessee, Department of Treasury
155
State of Tennessee, Department of Treasury
Tennessee
$214K 9,300 – –
VRS
156
Virginia Retirement Systems
Virginia
$201K 8,762 -800 -8%
OPERF
157
Oregon Public Employees Retirement Fund
Oregon
$194K 8,442 -100 -1%
PFSRSONJ
158
Police & Firemen's Retirement System of New Jersey
New Jersey
$190K 8,288 – –
Zurich Cantonal Bank
159
Zurich Cantonal Bank
Switzerland
$172K 7,504 – –
KK
160
KLP Kapitalforvaltning
Norway
$170K 7,400 – –
Fidelity Investments
161
Fidelity Investments
Massachusetts
$165K 7,203 +2,397 +50%
PNC Financial Services Group
162
PNC Financial Services Group
Pennsylvania
$149K 6,483 +1,700 +36%
Lazard Asset Management
163
Lazard Asset Management
New York
$145K 6,344 +6,344 New
OC
164
Oakworth Capital
Alabama
$138K 6,000 – –
Public Employees Retirement Association of Colorado
165
Public Employees Retirement Association of Colorado
Colorado
$121K 5,265 – –
Carson Wealth (CWM LLC)
166
Carson Wealth (CWM LLC)
Nebraska
$103K 4,502 +3,834 +574%
Canada Pension Plan Investment Board
167
Canada Pension Plan Investment Board
Ontario, Canada
$96.4K 4,200 +1,500 +56%
SAM
168
Shell Asset Management
Netherlands
$96K 4,173 -460 -10%
BIG
169
Brooklyn Investment Group
New York
$86.7K 3,778 +3,629 +2,436%
AIP
170
Ameritas Investment Partners
Nebraska
$86.4K 3,762 – –
TRCT
171
Tower Research Capital (TRC)
New York
$82.3K 3,583 +2,596 +263%
SOW
172
State of Wyoming
Wyoming
$62.5K 2,723 -2,137 -44%
IA
173
IFP Advisors
Florida
$51.9K 2,035 +877 +76%
GI
174
GAMMA Investing
California
$49.6K 2,162 +829 +62%
Mirae Asset Global Investments
175
Mirae Asset Global Investments
South Korea
$41.8K 1,821 +212 +13%
5 6
7
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