Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH)

Q1 2025 13F Holders as of 31 Mar 2025

Type / Class
Equity / Common Stock
Shares outstanding
46.4M
Number of holders
240
Total 13F shares, excl. options
33.2M
Shares change
-1.47M
Total reported value, excl. options
$963M
Value change
-$63.2M
Put/Call ratio
0.56
Number of buys
111
Number of sells
-142
Price
$28.99

Significant Holders of Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) as of Q1 2025

292 filings reported holding AMPH - Amphastar Pharmaceuticals, Inc. - Common Stock as of Q1 2025.
Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH) has 240 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 33.2M shares of 46.4M outstanding shares and own 71.69% of the company stock.
Largest 10 shareholders include BlackRock, Inc. (6.15M shares), VANGUARD GROUP INC (2.42M shares), TD Asset Management Inc (2.21M shares), STATE STREET CORP (1.6M shares), DIMENSIONAL FUND ADVISORS LP (1.36M shares), FULLER & THALER ASSET MANAGEMENT, INC. (1.26M shares), Epoch Investment Partners, Inc. (1.26M shares), Boston Trust Walden Corp (1.22M shares), MARSHALL WACE, LLP (1.03M shares), and GEODE CAPITAL MANAGEMENT, LLC (955K shares).
This table shows the top 240 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
Investor Option Weight % Change % Value $ * Price $ Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.