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 |
|---|---|---|---|---|---|
|
Illinois Municipal Retirement Fund
|
Nov 06, 2025 Q3 2025 |
20,747
shares
|
$540,666
0.01% of portfolio
|
Q3 2025
Added 4.06%
|
|
|
Canada Pension Plan Investment Board
Toronto Ontario, A6 |
Nov 13, 2025 Q3 2025 |
20,700
shares
|
$539,442
0.0% of portfolio
|
Q3 2025
Added 392.86%
|
|
|
Significant Wealth Partners LLC
Cary, IL |
Nov 03, 2025 Q3 2025 |
20,579
shares
|
$536,288
0.27% of portfolio
|
Q3 2025
Added 27.2%
|
|
|
Citigroup Inc
|
Nov 10, 2025 Q3 2025 |
19,815
shares
|
$516,378
0.0% of portfolio
|
Q3 2025
Reduced 53.07%
|
|
|
Los Angeles Capital Management LLC
|
Oct 20, 2025 Q3 2025 |
18,938
shares
|
$493,524
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Martingale Asset Management L P
Boston, MA |
Nov 13, 2025 Q3 2025 |
18,521
shares
|
$482,657
0.01% of portfolio
|
Q3 2025
Reduced 24.53%
|
|
|
Vident Advisory, LLC
Alpharetta, GA |
Nov 14, 2025 Q3 2025 |
18,431
shares
|
$480,311
0.0% of portfolio
|
Q3 2025
Added 6.67%
|
|
|
Cynosure Management, LLC
Salt Lake City, UT |
Nov 13, 2025 Q3 2025 |
17,820
shares
|
$464,389
0.05% of portfolio
|
Q2 2025
Added 43.7%
|
|
|
Manufacturers Life Insurance Company, The
Toronto, A6 |
Nov 14, 2025 Q3 2025 |
17,762
shares
|
$462,877
0.0% of portfolio
|
Q3 2025
Reduced 4.96%
|
|
|
Ea Series Trust
Havertown, PA |
Jul 27, 2023 Q2 2023 |
17,519
shares
|
$456,545
0.04% of portfolio
|
Q2 2023
New holding
|
|
|
Mirae Asset Global Etfs Holdings Ltd.
Central, K3 |
Nov 14, 2025 Q3 2025 |
17,242
shares
|
$449,326
0.0% of portfolio
|
Q3 2025
Reduced 15.22%
|
|
|
Wellington Management Group LLP
Boston, MA |
Nov 14, 2025 Q3 2025 |
17,199
shares
|
$448,205
0.0% of portfolio
|
Q3 2025
Added 10.12%
|
|
|
Janus Henderson Group PLC
London, X0 |
Nov 14, 2025 Q3 2025 |
16,868
shares
|
$439,580
0.0% of portfolio
|
Q2 2025
Reduced 86.44%
|
|
|
Louisiana State Employees Retirement System
|
Oct 22, 2025 Q3 2025 |
16,500
shares
|
$429,990
0.01% of portfolio
|
Q3 2025
Reduced 4.07%
|
|
|
Alps Advisors Inc
Denver, CO |
Nov 05, 2025 Q3 2025 |
16,250
shares
|
$423,475
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Ci Private Wealth, LLC
Miami, FL |
Nov 14, 2025 Q3 2025 |
15,723
shares
|
$409,741
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Advisory Research Inc
Chicago, IL |
Nov 13, 2025 Q3 2025 |
15,468
shares
|
$403,096
0.06% of portfolio
|
Q3 2025
Added 3.83%
|
|
|
Joel Greenblatt
Gotham Asset Management, LLC | New York, Ny
|
Nov 14, 2025 Q3 2025 |
15,364
shares
|
$400,385
0.0% of portfolio
|
Q3 2025
Added 9.63%
|
|
|
Assenagon Asset Management S.A.
|
Oct 07, 2025 Q3 2025 |
15,216
shares
|
$396,528
0.0% of portfolio
|
Q3 2025
Reduced 8.39%
|
|
|
Jackson Creek Investment Advisors LLC
|
Nov 04, 2025 Q3 2025 |
14,743
shares
|
$384,202
0.11% of portfolio
|
Q3 2025
New holding
|
|
|
Lpl Financial LLC
Fort Mill, SC |
Nov 12, 2025 Q3 2025 |
14,645
shares
|
$381,648
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Pdt Partners, LLC
New York, NY |
Nov 14, 2025 Q3 2025 |
14,630
shares
|
$381,257
0.03% of portfolio
|
Q2 2025
New holding
|
|
|
Handelsbanken Fonder Ab
|
Nov 12, 2025 Q3 2025 |
14,400
shares
|
$375,264
0.0% of portfolio
|
Q4 2024
Reduced 14.79%
|
|
|
Virginia Retirement Systems Et Al
Richmond, VA |
Oct 20, 2025 Q3 2025 |
13,562
shares
|
$353,425
0.0% of portfolio
|
Q3 2025
Added 54.78%
|
|
|
Brevan Howard Capital Management LP
St. Helier, Y9 |
Nov 14, 2025 Q3 2025 |
13,489
shares
|
$351,523
0.0% of portfolio
|
Q3 2025
Reduced 72.43%
|
|