AMPHASTAR PHARMACEUTICLS ($AMPH) posted quarterly earnings results on Wednesday, May 7th. The company reported earnings of $0.74 per share, beating estimates of $0.70 by $0.04. The company also reported revenue of $170,530,000, missing estimates of $176,397,780 by $-5,867,780.
You can see Quiver Quantitative's $AMPH stock page to track data on insider trading, hedge fund activity, congressional trading, and more.
AMPHASTAR PHARMACEUTICLS Insider Trading Activity
AMPHASTAR PHARMACEUTICLS insiders have traded $AMPH stock on the open market 11 times in the past 6 months. Of those trades, 0 have been purchases and 11 have been sales.
Here’s a breakdown of recent trading of $AMPH stock by insiders over the last 6 months:
- RONG ZHOU (SENIOR EVP, PRODUCTION CENTER) has made 0 purchases and 3 sales selling 21,893 shares for an estimated $1,009,744.
- RICHARD K PRINS has made 0 purchases and 2 sales selling 15,000 shares for an estimated $681,687.
- WILLIAM J PETERS (CFO, EVP & TREASURER) has made 0 purchases and 2 sales selling 11,657 shares for an estimated $503,038.
- YAKOB LIAWATIDEWI (EVP CORP ADMIN CENTER) sold 5,214 shares for an estimated $271,388
- FLOYD F. PETERSEN has made 0 purchases and 3 sales selling 2,000 shares for an estimated $54,218.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
AMPHASTAR PHARMACEUTICLS Hedge Fund Activity
We have seen 121 institutional investors add shares of AMPHASTAR PHARMACEUTICLS stock to their portfolio, and 159 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- FEDERATED HERMES, INC. removed 1,123,613 shares (-57.7%) from their portfolio in Q4 2024, for an estimated $41,719,750
- PACER ADVISORS, INC. removed 870,978 shares (-64.5%) from their portfolio in Q1 2025, for an estimated $25,249,652
- BESSEMER GROUP INC removed 488,069 shares (-99.9%) from their portfolio in Q1 2025, for an estimated $14,149,120
- BOSTON PARTNERS added 426,636 shares (+inf%) to their portfolio in Q4 2024, for an estimated $15,840,994
- TD ASSET MANAGEMENT INC added 371,856 shares (+20.2%) to their portfolio in Q1 2025, for an estimated $10,780,105
- BOONE CAPITAL MANAGEMENT LLC removed 316,556 shares (-100.0%) from their portfolio in Q4 2024, for an estimated $11,753,724
- WEALTHFRONT ADVISERS LLC removed 249,605 shares (-100.0%) from their portfolio in Q1 2025, for an estimated $7,236,048
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.
