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Amphastar Pharmaceuticals
AMPH

Overview Fund Activity

241 hedge funds and large institutions have $751M invested in Amphastar Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 91 increasing their positions, 73 reducing their positions, and 40 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
241
Holders Change
–
Holders Change %
0%
% of All Funds
3.23%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
43
Increased
91
Reduced
73
Closed
40
Calls
$447K
Puts
$381K
Net Calls
+$66K
Net Calls Change
-$235K

Top Buyers

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

Top Sellers

1
Federated Hermes
Federated Hermes
Pennsylvania
$258K
2
Boston Partners
Boston Partners
Massachusetts
$0
3
BlackRock
BlackRock
New York
$130M
4
GIP
Granite Investment Partners
California
$0
5
ECM
ExodusPoint Capital Management
New York
$745K
Name Holding Trade Value Shares
Change 		Shares
Change %
Mirae Asset Global Investments
176
Mirae Asset Global Investments
South Korea
$41.8K +$4.87K +212 +13%
BTI
177
Blue Trust Inc
Georgia
$40.8K +$7.28K +317 +22%
TPCW
178
TD Private Client Wealth
New York
$38.9K -$735 -32 -2%
AF
179
Allworth Financial
California
$35.5K -$482 -21 -1%
HFS
180
Hantz Financial Services
Michigan
$32K +$31.1K +1,338 +3,431%
Simplex Trading
181
Simplex Trading
Illinois
$31K +$31K +1,379 New
S
182
SignatureFD
Georgia
$29.2K +$9.18K +400 +46%
MPWT
183
MassMutual Private Wealth & Trust
Connecticut
$29K +$19.1K +831 +193%
GFM
184
GF Fund Management
China
$28.2K – – –
Russell Investments Group
185
Russell Investments Group
United Kingdom
$19.2K -$28.1K -1,223 -59%
CIBC Private Wealth Group
186
CIBC Private Wealth Group
Georgia
$16.6K -$1.75K -76 -10%
1IA
187
1620 Investment Advisors
Massachusetts
$15.7K -$36.6K -1,595 -70%
VCM
188
Versant Capital Management
Arizona
$14.3K +$6.15K +268 +75%
Fifth Third Bancorp
189
Fifth Third Bancorp
Ohio
$11K +$2.48K +108 +29%
US Bancorp
190
US Bancorp
Minnesota
$9.9K +$666 +29 +7%
Ohio Public Employees Retirement System (OPERS)
191
Ohio Public Employees Retirement System (OPERS)
Ohio
$9.51K +$1.31K +57 +16%
Nisa Investment Advisors
192
Nisa Investment Advisors
Missouri
$8.59K -$19.5K -850 -69%
CIAM
193
Caitong International Asset Management
Hong Kong
$8.54K +$5.72K +249 +202%
Jones Financial Companies
194
Jones Financial Companies
Missouri
$8.47K +$5.45K +236 +180%
GRP
195
Global Retirement Partners
California
$7.37K +$7.37K +321 New
TC
196
Truvestments Capital
Florida
$7.28K – – –
PA
197
Parallel Advisors
California
$6.93K +$5.6K +244 +421%
HI
198
Harbour Investments
Wisconsin
$6.2K – – –
HCA
199
Harbor Capital Advisors
Illinois
$6K +$880 +39 +17%
EWA
200
EverSource Wealth Advisors
Alabama
$5.95K +$5.86K +255 +6,375%
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