Amphastar Pharmaceuticals (AMPH) News Today $22.60 -0.26 (-1.14%) Closing price 07/8/2025 04:00 PM EasternExtended Trading$22.94 +0.34 (+1.50%) As of 07/8/2025 04:32 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Headlines Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock AMPH Latest News All Sources Trusted Sources MarketBeat Benzinga Bloomberg GlobeNewswire GuruFocus MarketWatch Motley Fool NASDAQ PR Newswire Reuters Seeking Alpha TalkMarkets The Street TipRanks The Wall Street Journal Wall Street Zen Yahoo Finance Source Sentiment refers to the positivity or negativity of each headline according to our language processing algorithm. Sentiment All Sentiments Very Positive Positive Neutral Negative Very Negative Most Recent July 2025 June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024 January 2024 December 2023 November 2023 October 2023 September 2023 August 2023 July 2023 June 2023 May 2023 April 2023 March 2023 February 2023 January 2023 December 2022 November 2022 October 2022 September 2022 August 2022 Time Period Amphastar Pharmaceuticals (NASDAQ:AMPH) Sets New 1-Year Low - What's Next?July 8 at 2:17 PM | marketbeat.comAmphastar Pharmaceuticals’s Q1 Earnings Call: Our Top 5 Analyst QuestionsJuly 4, 2025 | msn.comInsider Selling: Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Director Sells 500 Shares of StockJuly 4, 2025 | insidertrades.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Director Floyd F. Petersen Sells 500 SharesJuly 3, 2025 | marketbeat.comAMPH Amphastar Pharmaceuticals, Inc. - Seeking AlphaJuly 1, 2025 | seekingalpha.com1 Healthcare Stock with Solid Fundamentals and 2 to IgnoreJuly 1, 2025 | finance.yahoo.comAmphastar Pharmaceuticals Inc.DL-Exchang. Notes 2023(29) BondJune 28, 2025 | markets.businessinsider.comAmphastar Pharmaceuticals (AMPH): Buy, Sell, or Hold Post Q1 Earnings?June 25, 2025 | msn.comAmphastar Pharmaceuticals, Inc. (AMPH) - Yahoo FinanceJune 24, 2025 | finance.yahoo.comBoston Trust Walden Corp Boosts Stock Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 20, 2025 | marketbeat.comAssenagon Asset Management S.A. Has $441,000 Stock Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 20, 2025 | marketbeat.comGAMMA Investing LLC Has $1.12 Million Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 16, 2025 | marketbeat.comAMPH Q1 Earnings Call: Product Mix Shift and Margin Pressures Highlight Competitive ChallengesJune 12, 2025 | msn.comCX Institutional Purchases Shares of 82,147 Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 12, 2025 | marketbeat.com3 Russell 2000 Stocks with Questionable FundamentalsJune 11, 2025 | finance.yahoo.comBridge City Capital LLC Increases Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 9, 2025 | marketbeat.comAmphastar Pharmaceuticals director sells $12,835 in stockJune 6, 2025 | investing.comUBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Has $3.09 Million Stock Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 6, 2025 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Director Sells $12,835.00 in StockJune 5, 2025 | marketbeat.comSquarepoint Ops LLC Buys 11,929 Shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 3, 2025 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Short Interest Up 24.9% in MayJune 3, 2025 | marketbeat.comNuveen Asset Management LLC Has $3.55 Million Stock Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)June 2, 2025 | marketbeat.comVoloridge Investment Management LLC Has $5.33 Million Stock Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 28, 2025 | marketbeat.comTwo Sigma Advisers LP Decreases Stock Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 28, 2025 | marketbeat.comMan Group plc Makes New $810,000 Investment in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 27, 2025 | marketbeat.comDeutsche Bank AG Has $1.27 Million Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 27, 2025 | marketbeat.comPoint72 Asset Management L.P. Sells 29,617 Shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 26, 2025 | marketbeat.comTwinbeech Capital LP Takes $1.74 Million Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 24, 2025 | marketbeat.comBNP Paribas Financial Markets Sells 57,502 Shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 22, 2025 | marketbeat.comSystematic Financial Management LP Acquires Shares of 246,348 Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 20, 2025 | marketbeat.comJanus Henderson Group PLC Grows Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 20, 2025 | marketbeat.comD. E. Shaw & Co. Inc. Boosts Stock Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 20, 2025 | marketbeat.comJane Street Group LLC Raises Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 15, 2025 | marketbeat.comNorthern Trust Corp Buys 29,808 Shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 15, 2025 | marketbeat.comJPMorgan Chase & Co. Reiterates "Neutral" Rating for Amphastar Pharmaceuticals (NASDAQ:AMPH)May 14, 2025 | marketbeat.comAmphastar stock rating cut to Neutral by JPMorganMay 13, 2025 | investing.comJP Morgan Downgrades Amphastar Pharmaceuticals (AMPH)May 13, 2025 | msn.comAmphastar Pharmaceuticals: Navigating Through An Inflection YearMay 11, 2025 | seekingalpha.comAmphastar Pharmaceuticals, Inc.: Amphastar Pharmaceuticals to Present at the 2025 Bank of America Health Care ConferenceMay 10, 2025 | finanznachrichten.deAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Shares Purchased by Schonfeld Strategic Advisors LLCMay 9, 2025 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Q1 2025 Earnings Call TranscriptMay 8, 2025 | insidermonkey.comAmphastar outlines key launches and product growth drivers for 2025May 7, 2025 | msn.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Misses Q1 Sales TargetsMay 7, 2025 | msn.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Misses Q1 Sales TargetsMay 7, 2025 | msn.comAmphastar Pharmaceuticals (AMPH) Reports Earnings Tomorrow: What To ExpectMay 6, 2025 | finance.yahoo.comDimensional Fund Advisors LP Buys 105,288 Shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 6, 2025 | marketbeat.comFirst Trust Advisors LP Raises Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 6, 2025 | marketbeat.comAristeia Capital L.L.C. Acquires Shares of 43,235 Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)May 5, 2025 | marketbeat.comAmphastar Pharmaceuticals (AMPH) Projected to Post Quarterly Earnings on WednesdayMay 4, 2025 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Director Sells $12,040.00 in StockMay 3, 2025 | insidertrades.com Get Amphastar Pharmaceuticals News Delivered to You Automatically Sign up to receive the latest news and ratings for AMPH and its competitors with MarketBeat's FREE daily newsletter. Email Address AMPH Media Mentions By Week AMPH Media Sentiment Learn about the media sentiment score. Each headline receives a score ranging from 2 (good news) to -2 (bad news). Our company news sentiment scores track the average news sentiment of articles about each company over the most recent 7 days in order to identify companies that are receiving positive press. AMPH News Sentiment▼0.230.57▲Average Medical News Sentiment AMPH News Coverage Learn about the media coverage comparison. We track news headlines from hundreds of news outlets and tag them by company. This chart compares the number of articles about this company in the last seven days compared with the average number of articles about this company on a typical week. AMPH Articles This Week▼54▲AMPH Articles Average Week Get Amphastar Pharmaceuticals News Delivered to You Automatically Sign up to receive the latest news and ratings for AMPH and its competitors with MarketBeat's FREE daily newsletter. Email Address Related Companies and Tools Related Companies ADMA News Today PCVX News Today KRYS News Today RYTM News Today CYTK News Today PTCT News Today ZLAB News Today ACAD News Today MRUS News Today ACLX News Today Headlines Tools Trending Media MentionsHigh Media Sentiment StocksLive News FeedMarketBeat OriginalsStock Ideas This page (NASDAQ:AMPH) was last updated on 7/9/2025 by MarketBeat.com Staff From Our PartnersA grave, grave error.I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. 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