AMPH icon

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 %
BTI
176
Blue Trust Inc
Georgia
$40.8K 1,776 +317 +22%
TPCW
177
TD Private Client Wealth
New York
$38.9K 1,695 -32 -2%
AF
178
Allworth Financial
California
$35.5K 1,545 -21 -1%
HFS
179
Hantz Financial Services
Michigan
$32K 1,377 +1,338 +3,431%
Simplex Trading
180
Simplex Trading
Illinois
$31K 1,379 +1,379 New
S
181
SignatureFD
Georgia
$29.2K 1,272 +400 +46%
MPWT
182
MassMutual Private Wealth & Trust
Connecticut
$29K 1,262 +831 +193%
GFM
183
GF Fund Management
China
$28.2K 1,230 – –
Russell Investments Group
184
Russell Investments Group
United Kingdom
$19.2K 835 -1,223 -59%
1IA
185
1620 Investment Advisors
Massachusetts
$15.7K 682 -1,595 -70%
VCM
186
Versant Capital Management
Arizona
$14.3K 624 +268 +75%
Fifth Third Bancorp
187
Fifth Third Bancorp
Ohio
$11K 480 +108 +29%
US Bancorp
188
US Bancorp
Minnesota
$9.9K 431 +29 +7%
Ohio Public Employees Retirement System (OPERS)
189
Ohio Public Employees Retirement System (OPERS)
Ohio
$9.51K 414 +57 +16%
Nisa Investment Advisors
190
Nisa Investment Advisors
Missouri
$8.59K 374 -850 -69%
CIAM
191
Caitong International Asset Management
Hong Kong
$8.54K 372 +249 +202%
Jones Financial Companies
192
Jones Financial Companies
Missouri
$8.47K 367 +236 +180%
GRP
193
Global Retirement Partners
California
$7.37K 321 +321 New
TC
194
Truvestments Capital
Florida
$7.28K 317 – –
PA
195
Parallel Advisors
California
$6.93K 302 +244 +421%
HI
196
Harbour Investments
Wisconsin
$6.2K 270 – –
HCA
197
Harbor Capital Advisors
Illinois
$6K 266 +39 +17%
EWA
198
EverSource Wealth Advisors
Alabama
$5.95K 259 +255 +6,375%
HNB
199
Huntington National Bank
Ohio
$5.81K 253 -371 -59%
Bessemer Group
200
Bessemer Group
New Jersey
$5K 200 -361 -64%
6 7
8
9 10