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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 %
BNP Paribas Asset Management
201
BNP Paribas Asset Management
France
$5K 199 +199 New
SWM
202
Spire Wealth Management
Virginia
$4.87K 212 – –
FFA
203
Farther Finance Advisors
California
$4.75K 207 +72 +53%
W
204
WealthCollab
Washington
$4.75K 207 +207 New
SAM
205
Smartleaf Asset Management
Massachusetts
$4.41K 191 -376 -66%
MCM
206
MAI Capital Management
Ohio
$4.27K 186 +186 New
PWMG
207
Private Wealth Management Group
New Jersey
$4.11K 179 +159 +795%
Daiwa Securities Group
208
Daiwa Securities Group
Japan
$4K 185 – –
CSB
209
City State Bank
Iowa
$3.44K 150 – –
PFBT
210
Parkside Financial Bank & Trust
Missouri
$3.12K 136 -870 -86%
TWC
211
TD Waterhouse Canada
Ontario, Canada
$2.34K 100 +100 New
RIL
212
Rothschild Investment LLC
Illinois
$2.18K 95 +35 +58%
C
213
Covestor
United Kingdom
$2K 66 -231 -78%
AAP
214
Arax Advisory Partners
Colorado
$1.86K 81 +81 New
AIM
215
Anchor Investment Management
South Carolina
$1.72K 75 -75 -50%
Northwestern Mutual Wealth Management
216
Northwestern Mutual Wealth Management
Wisconsin
$1.42K 62 +62 New
CA
217
CoreCap Advisors
Michigan
$1.36K 59 – –
FHA
218
First Horizon Advisors
Tennessee
$1.33K 58 +58 New
PTC
219
Private Trust Company
Ohio
$1.13K 49 +49 New
PMAM
220
Picton Mahoney Asset Management
Ontario, Canada
$1K 24 -1,584 -99%
AW
221
Avion Wealth
Texas
$1K 60 +60 New
PWA
222
Physician Wealth Advisors
Utah
$942 41 +41 New
SS
223
SBI Securities
Japan
$918 40 – –
CT
224
Clearstead Trust
Maine
$758 33 +33 New
LFG
225
Larson Financial Group
Missouri
$643 28 -597 -96%
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9
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