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 262 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 $874 Million.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Kayne Anderson Rudnick Investment Management LLC
Los Angeles, CA |
Nov 13, 2025 Q3 2025 |
15
shares
|
$390
0.0% of portfolio
|
Q1 2024
New holding
|
|
|
Steward Financial Group LLC
|
Oct 20, 2023 Q3 2023 |
11
shares
|
$286
0.0% of portfolio
|
Q3 2023
New holding
|
|
|
Legacy Investment Solutions, LLC
Meridian, ID |
Aug 06, 2025 Q2 2025 |
10
shares
|
$260
0.0% of portfolio
|
Q3 2024
New holding
|
|
|
Legacy Wealth Managment, Llc/Id
Boise, ID |
Nov 12, 2025 Q3 2025 |
10
shares
|
$260
0.0% of portfolio
|
Q3 2024
New holding
|
|
|
Capital Advisors, Ltd. LLC
|
Oct 16, 2025 Q3 2025 |
8
shares
|
$208
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Abound Wealth Management
Franklin, TN |
Jan 12, 2026 Q4 2025 |
4
shares
|
$104
0.0% of portfolio
|
Q3 2024
Reduced 33.33%
|
|
|
Caitong International Asset Management Co., LTD
Hong Kong, K3 |
Nov 19, 2025 Q3 2025 |
3
shares
|
$78
0.0% of portfolio
|
Q3 2025
Reduced 99.19%
|
|
|
Concourse Financial Group Securities, Inc.
Birmingham, AL |
Aug 12, 2025 Q2 2025 |
0
shares
|
$0
100.0% of portfolio
|
Q2 2025
New holding
|