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 263 institutions that hold shares in the stock, with a total of 33.5 Million shares, which have been reported (via 13F filing form) to have a value of $873 Million.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Acadian Asset Management LLC
Boston, MA |
Nov 13, 2025 Q3 2025 |
44,349
shares
|
$1.16 Million
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Campbell & CO Investment Adviser LLC
Baltimore, MD |
Oct 28, 2025 Q3 2025 |
44,068
shares
|
$1.15 Million
0.09% of portfolio
|
Q3 2025
Added 96.44%
|
|
|
Susquehanna Portfolio Strategies, LLC
Bala Cynwyd, PA |
Nov 14, 2025 Q3 2025 |
39,564
shares
|
$1.03 Million
0.02% of portfolio
|
Q2 2025
New holding
|
|
|
Summer Haven Investment Management, LLC
|
Nov 03, 2025 Q3 2025 |
38,200
shares
|
$995,492
0.61% of portfolio
|
Q3 2025
New holding
|
|
|
Legato Capital Management LLC
|
Nov 12, 2025 Q3 2025 |
36,060
shares
|
$939,723
0.11% of portfolio
|
Q2 2025
Added 21.42%
|
|
|
Arkadios Wealth Advisors
|
Oct 29, 2025 Q3 2025 |
36,008
shares
|
$938,368
0.03% of portfolio
|
Q3 2025
Added 2.4%
|
|
|
California State Teachers Retirement System
West Sacramento, CA |
Nov 14, 2025 Q3 2025 |
35,879
shares
|
$935,006
0.0% of portfolio
|
Q3 2025
Added 0.01%
|
|
|
Man Group PLC
London, X0 |
Nov 14, 2025 Q3 2025 |
32,385
shares
|
$843,953
0.0% of portfolio
|
Q3 2025
Added 59.53%
|
|
|
Advisor Group Holdings, Inc.
Phoenix, AZ |
Nov 14, 2025 Q3 2025 |
31,614
shares
|
$823,860
0.0% of portfolio
|
Q3 2025
Added 107.5%
|
|
|
Great West Life Assurance CO
Winnipeg, A2 |
Nov 17, 2025 Q3 2025 |
30,216
shares
|
$787,428
0.0% of portfolio
|
Q2 2025
Reduced 3.35%
|
|
|
Quantbot Technologies LP
New York, NY |
Nov 12, 2025 Q3 2025 |
29,763
shares
|
$775,623
0.02% of portfolio
|
Q3 2025
Reduced 51.17%
|
|
|
Wells Fargo & Company
San Francisco, CA |
Nov 13, 2025 Q3 2025 |
28,751
shares
|
$749,251
0.0% of portfolio
|
Q3 2025
Added 17.85%
|
|
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
Nov 13, 2025 Q3 2025 |
28,396
shares
|
$739,999
0.0% of portfolio
|
Q3 2025
Added 12.78%
|
|
|
Illumine Investment Management, LLC
Poulsbo, WA |
Nov 04, 2025 Q3 2025 |
27,677
shares
|
$721,262
0.53% of portfolio
|
Q3 2025
Added 2.03%
|
|
|
Thrivent Financial For Lutherans
Minneapolis, MN |
Nov 04, 2025 Q3 2025 |
25,828
shares
|
$673,077
0.0% of portfolio
|
Q3 2025
Reduced 4.47%
|
|
|
Advisor Os, LLC
|
Nov 10, 2025 Q3 2025 |
25,405
shares
|
$662,054
0.06% of portfolio
|
Q4 2024
Reduced 2.41%
|
|
|
Y Intercept (Hong Kong) LTD
|
Oct 31, 2025 Q3 2025 |
25,090
shares
|
$653,845
0.02% of portfolio
|
Q3 2025
Added 41.54%
|
|
|
New York State Teachers Retirement System
|
Oct 24, 2025 Q3 2025 |
23,328
shares
|
$607,927
0.0% of portfolio
|
Q3 2025
Reduced 1.7%
|
|
|
Met Life Investment Management, LLC
Whippany, NJ |
Nov 13, 2025 Q3 2025 |
23,093
shares
|
$601,803
0.0% of portfolio
|
Q1 2025
Reduced 1.53%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
Nov 14, 2025 Q3 2025 |
22,800
shares
|
$594,168
0.0% of portfolio
|
Q3 2025
Reduced 76.05%
|
|
|
Envestnet Asset Management Inc
|
Nov 04, 2025 Q3 2025 |
21,975
shares
|
$572,668
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Lighthouse Investment Partners, LLC
Palm Beach Gardens, FL |
Nov 14, 2025 Q3 2025 |
21,600
shares
|
$562,896
0.02% of portfolio
|
Q3 2025
New holding
|
|
|
State Of Wisconsin Investment Board
Madison, WI |
Nov 14, 2025 Q3 2025 |
21,334
shares
|
$555,964
0.0% of portfolio
|
Q3 2025
Reduced 15.78%
|
|
|
Deka Bank Deutsche Girozentrale
|
Nov 03, 2025 Q3 2025 |
20,848
shares
|
$543,298
0.0% of portfolio
|
Q3 2023
Added 24.1%
|
|
|
State Of Alaska, Department Of Revenue
|
Oct 23, 2025 Q3 2025 |
20,788
shares
|
$541,735
0.01% of portfolio
|
Q3 2025
Reduced 5.04%
|
|