O'Shaughnessy Asset Management, LLC Amphastar Pharmaceuticals, Inc. Transaction History
O'Shaughnessy Asset Management, LLC
- $14.2 Billion
- Q2 2025
A detailed history of O'Shaughnessy Asset Management, LLC transactions in Amphastar Pharmaceuticals, Inc. stock. As of the latest transaction made, O'Shaughnessy Asset Management, LLC holds 40,309 shares of AMPH stock, worth $1.05 Million. This represents 0.01% of its overall portfolio holdings.
Number of Shares
40,309Holding current value
$1.05 Million% of portfolio
0.01%Shares
4 transactions
Others Institutions Holding AMPH
# of Institutions
257Shares Held
33.3MCall Options Held
18.3KPut Options Held
12.6K-
Black Rock Inc. New York, NY5.94MShares$154 Million0.01% of portfolio
-
Vanguard Group Inc Valley Forge, PA2.69MShares$69.8 Million0.0% of portfolio
-
Td Asset Management Inc2.03MShares$52.9 Million0.04% of portfolio
-
Dimensional Fund Advisors LP Austin, TX1.63MShares$42.3 Million0.01% of portfolio
-
State Street Corp Boston, MA1.58MShares$41 Million0.0% of portfolio
About Amphastar Pharmaceuticals, Inc.
- Ticker AMPH
- Exchange NASDAQ
- Sector Healthcare
- Industry Drug Manufacturers—Specialty & Generic
- Shares Outstandng 49,015,200
- Market Cap $1.27B
- Description
- Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. The company operates through two segments, Finished Pharmaceutical Products and API. It offers Primatene Mist, an over-the-count...