AMPHASTAR PHARMACEUTICLS ($AMPH) posted quarterly earnings results for Q1 2026 on Thursday, May 7th. The company reported earnings of $0.42 per share, missing estimates of $0.72 by $0.30. The company also reported revenue of $171,170,000, missing estimates of $176,859,503 by $-5,689,503.
Stock price change since market close: -12.15%
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 5 times in the past 6 months. Of those trades, 0 have been purchases and 5 have been sales.
Here’s a breakdown of recent trading of $AMPH stock by insiders over the last 6 months:
- FLOYD F. PETERSEN has made 0 purchases and 3 sales selling 20,842 shares for an estimated $549,345.
- RONG ZHOU (SENIOR EVP, PRODUCTION CENTER) sold 9,787 shares for an estimated $256,379
- RICHARD K PRINS sold 4,179 shares for an estimated $113,253
To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API.
AMPHASTAR PHARMACEUTICLS Hedge Fund Activity
We have seen 101 institutional investors add shares of AMPHASTAR PHARMACEUTICLS stock to their portfolio, and 141 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- MILLENNIUM MANAGEMENT LLC removed 407,092 shares (-58.3%) from their portfolio in Q4 2025, for an estimated $10,901,923
- AMERICAN CENTURY COMPANIES INC added 376,751 shares (+130.6%) to their portfolio in Q4 2025, for an estimated $10,089,391
- MARSHALL WACE, LLP added 363,216 shares (+41.6%) to their portfolio in Q4 2025, for an estimated $9,726,924
- ALGERT GLOBAL LLC removed 267,772 shares (-68.2%) from their portfolio in Q4 2025, for an estimated $7,170,934
- PRICE T ROWE ASSOCIATES INC /MD/ removed 238,426 shares (-86.6%) from their portfolio in Q4 2025, for an estimated $6,385,048
- DIMENSIONAL FUND ADVISORS LP added 228,262 shares (+12.7%) to their portfolio in Q1 2026, for an estimated $4,471,652
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added 167,116 shares (+42.6%) to their portfolio in Q4 2025, for an estimated $4,475,366
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API.
AMPHASTAR PHARMACEUTICLS Price Targets
Multiple analysts have issued price targets for $AMPH recently. We have seen 4 analysts offer price targets for $AMPH in the last 6 months, with a median target of $26.5.
Here are some recent targets:
- Dennis Ding from Jefferies set a target price of $22.0 on 04/21/2026
- Glen Santangelo from Barclays set a target price of $23.0 on 04/08/2026
- Serge Belanger from Needham set a target price of $30.0 on 02/27/2026
- Benjamin Burnett from Wells Fargo set a target price of $30.0 on 02/27/2026
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.
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