O'Shaughnessy Asset Management, LLC Amphastar Pharmaceuticals, Inc. Transaction History
O'Shaughnessy Asset Management, LLC
- $16.5 Billion
- Q3 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 69,058 shares of AMPH stock, worth $1.8 Million. This represents 0.01% of its overall portfolio holdings.
Number of Shares
69,058
Previous 40,309
71.32%
Holding current value
$1.8 Million
Previous $925,000
98.92%
% of portfolio
0.01%
Previous 0.01%
Shares
5 transactions
Others Institutions Holding AMPH
# of Institutions
262Shares Held
33.5MCall Options Held
73.4KPut Options Held
12.6K-
Black Rock Inc. New York, NY5.94MShares$155 Million0.01% of portfolio
-
Vanguard Group Inc Valley Forge, PA2.63MShares$68.6 Million0.0% of portfolio
-
Td Asset Management Inc1.93MShares$50.3 Million0.05% of portfolio
-
Dimensional Fund Advisors LP Austin, TX1.76MShares$45.8 Million0.01% of portfolio
-
State Street Corp Boston, MA1.5MShares$39.1 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 $1.28B
- 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...