Institutional Ownership Amphastar Pharmaceuticals, Inc. (AMPH)
This table provides information about the institutional ownership of Amphastar Pharmaceuticals, Inc. (AMPH). We have compiled data on the 259 institutions that hold shares in the stock, with a total of 33.6 Million shares, which have been reported (via 13F filing form) to have a value of $818 Million.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Intech Investment Management LLC
West Palm Beach, FL |
Feb 10, 2025 Q4 2024 |
42,156
shares
|
$1.05 Million
0.02% of portfolio
|
Q4 2024
Added 224.55%
|
|
|
Assetmark, Inc
|
May 06, 2025 Q1 2025 |
40,537
shares
|
$1 Million
0.0% of portfolio
|
Q1 2025
Reduced 3.3%
|
|
|
Gamma Investing LLC
Foster City, CA |
Apr 07, 2025 Q1 2025 |
38,644
shares
|
$957,984
0.01% of portfolio
|
Q1 2025
Reduced 96.55%
|
|
|
Engineers Gate Manager LP
New York, NY |
May 15, 2025 Q1 2025 |
38,545
shares
|
$955,530
0.02% of portfolio
|
Q1 2025
Added 32.42%
|
|
|
Man Group PLC
London, X0 |
May 15, 2025 Q1 2025 |
38,237
shares
|
$947,895
0.0% of portfolio
|
Q1 2025
Added 75.2%
|
|
|
Prudential Financial Inc
Newark, NJ |
May 13, 2025 Q1 2025 |
37,614
shares
|
$932,451
0.0% of portfolio
|
Q1 2025
Reduced 2.79%
|
|
|
California State Teachers Retirement System
West Sacramento, CA |
May 15, 2025 Q1 2025 |
36,369
shares
|
$901,587
0.0% of portfolio
|
Q2 2024
Added 4.81%
|
|
|
Numerai Gp LLC
San Francisco, CA |
May 15, 2025 Q1 2025 |
34,006
shares
|
$843,008
0.19% of portfolio
|
Q1 2025
New holding
|
|
|
Arkadios Wealth Advisors
|
May 08, 2025 Q1 2025 |
33,966
shares
|
$842,017
0.04% of portfolio
|
Q1 2025
Added 21.46%
|
|
|
Aristeia Capital LLC
Greenwich, CT |
May 15, 2025 Q1 2025 |
33,835
shares
|
$838,769
0.05% of portfolio
|
Q1 2025
Reduced 21.74%
|
|
|
Connor, Clark & Lunn Investment Management Ltd.
|
May 12, 2025 Q1 2025 |
32,241
shares
|
$799,254
0.0% of portfolio
|
Q1 2025
Reduced 52.14%
|
|
|
Hussman Strategic Advisors, Inc.
Ellicott City, MD |
May 05, 2025 Q1 2025 |
31,500
shares
|
$780,885
0.24% of portfolio
|
Q1 2025
New holding
|
|
|
Great West Life Assurance CO
Winnipeg, A2 |
May 15, 2025 Q1 2025 |
31,262
shares
|
$774,984
0.0% of portfolio
|
Q1 2025
Reduced 10.79%
|
|
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
May 09, 2025 Q1 2025 |
30,910
shares
|
$766,258
0.0% of portfolio
|
Q1 2025
Reduced 9.31%
|
|
|
Polaris Capital Management, LLC
Boston, MA |
May 14, 2025 Q1 2025 |
30,800
shares
|
$763,532
0.06% of portfolio
|
Q1 2025
Added 25.71%
|
|
|
Legato Capital Management LLC
|
May 06, 2025 Q1 2025 |
29,699
shares
|
$736,238
0.12% of portfolio
|
Q1 2025
Added 60.87%
|
|
|
Raymond James Financial Inc
St. Petersburg, FL |
May 13, 2025 Q1 2025 |
29,672
shares
|
$735,568
0.0% of portfolio
|
Q1 2025
Reduced 68.06%
|
|
|
Wells Fargo & Company
San Francisco, CA |
May 13, 2025 Q1 2025 |
29,361
shares
|
$727,859
0.0% of portfolio
|
Q1 2025
Added 24.66%
|
|
|
D. E. Shaw & Co., Inc.
New York, NY |
May 15, 2025 Q1 2025 |
29,188
shares
|
$723,570
0.0% of portfolio
|
Q1 2025
Reduced 75.44%
|
|
|
Illumine Investment Management, LLC
Poulsbo, WA |
Apr 22, 2025 Q1 2025 |
26,530
shares
|
$657,678
0.63% of portfolio
|
Q1 2025
Added 55.61%
|
|
|
Graham Capital Management, L.P.
Rowayton, CT |
May 15, 2025 Q1 2025 |
26,424
shares
|
$655,050
0.02% of portfolio
|
Q1 2025
New holding
|
|
|
Royal Bank Of Canada
Toronto, A6 |
May 15, 2025 Q1 2025 |
26,079
shares
|
$646,498
0.0% of portfolio
|
Q1 2025
Reduced 8.92%
|
|
|
State Of Wisconsin Investment Board
Madison, WI |
May 15, 2025 Q1 2025 |
25,592
shares
|
$634,425
0.0% of portfolio
|
Q1 2025
Reduced 0.22%
|
|
|
Advisor Os, LLC
|
May 06, 2025 Q1 2025 |
25,405
shares
|
$629,789
0.08% of portfolio
|
Q4 2024
Reduced 2.41%
|
|
|
Martingale Asset Management L P
Boston, MA |
May 14, 2025 Q1 2025 |
24,542
shares
|
$608,396
0.02% of portfolio
|
Q1 2025
Reduced 38.96%
|