Amphastar Pharmaceuticals (AMPH) News Today $31.28 -0.02 (-0.06%) Closing price 04:00 PM EasternExtended Trading$31.28 +0.00 (+0.02%) As of 04:50 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 InterestSustainabilityTrends All Sources Trusted Sources MarketBeat Benzinga Bloomberg 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 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 July 2022 June 2022 May 2022 April 2022 March 2022 Time Period Amphastar Pharmaceuticals (NASDAQ:AMPH) Hits New 12-Month Low - Should You Sell?Amphastar Pharmaceuticals (NASDAQ:AMPH) Hits New 12-Month Low - Here's WhyFebruary 20 at 12:42 AM | marketbeat.comAmphastar Pharmaceuticals: A Gradual StrategyFebruary 19 at 2:08 PM | seekingalpha.comAmphastar Pharmaceuticals (AMPH) Projected to Post Quarterly Earnings on WednesdayAmphastar Pharmaceuticals (NASDAQ:AMPH) will be releasing earnings before the market opens on Wednesday, February 26.February 19 at 3:54 AM | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Sees Large Drop in Short InterestAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Get Free Report) was the target of a large decrease in short interest in the month of January. As of January 31st, there was short interest totalling 4,120,000 shares, a decrease of 10.4% from the January 15th total of 4,600,000 shares. Based on an average trading volume of 545,700 shares, the short-interest ratio is currently 7.5 days. Currently, 11.5% of the shares of the company are short sold.February 17, 2025 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Short Interest Down 10.4% in JanuaryFebruary 17, 2025 | americanbankingnews.comAmphastar stock hits 52-week low at $31.54 amid market challengesFebruary 13, 2025 | msn.comPolaris Capital Management LLC Purchases Shares of 24,500 Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Polaris Capital Management LLC purchased a new stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) in the 4th quarter, according to its most recent 13F filing with the Securities & Exchange Commission. The institutional investor purchased 24,500 shares of the companyFebruary 11, 2025 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Reaches New 12-Month Low - Should You Sell?Amphastar Pharmaceuticals (NASDAQ:AMPH) Sets New 12-Month Low - Time to Sell?February 10, 2025 | marketbeat.comPiper Sandler Downgrades Amphastar Pharmaceuticals (AMPH)February 5, 2025 | msn.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Shares Gap Down - Here's What HappenedAmphastar Pharmaceuticals (NASDAQ:AMPH) Shares Gap Down - Time to Sell?February 4, 2025 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Downgraded to Neutral Rating by Piper SandlerPiper Sandler lowered Amphastar Pharmaceuticals from an "overweight" rating to a "neutral" rating and lowered their target price for the company from $66.00 to $36.00 in a report on Tuesday.February 4, 2025 | marketbeat.comAmphastar downgraded to Neutral from Overweight at Piper SandlerFebruary 4, 2025 | markets.businessinsider.comAmphastar Pharmaceuticals (AMPH) Gets a Hold from Bank of America SecuritiesFebruary 4, 2025 | markets.businessinsider.comPiper Sandler cuts Amphastar stock rating, slashes price targetFebruary 4, 2025 | msn.comBoston Trust Walden Corp Grows Holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Boston Trust Walden Corp grew its stake in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 81.4% during the 4th quarter, according to its most recent disclosure with the Securities and Exchange Commission. The institutional investor owned 978,920 shares of the company's stock afterFebruary 4, 2025 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Reaches New 52-Week Low - Here's What HappenedAmphastar Pharmaceuticals (NASDAQ:AMPH) Reaches New 12-Month Low - Here's What HappenedFebruary 3, 2025 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Short Interest Up 10.3% in JanuaryAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Get Free Report) saw a large increase in short interest in January. As of January 15th, there was short interest totalling 4,820,000 shares, an increase of 10.3% from the December 31st total of 4,370,000 shares. Based on an average trading volume of 476,100 shares, the short-interest ratio is currently 10.1 days. Currently, 13.5% of the company's stock are sold short.February 1, 2025 | marketbeat.comPacer Advisors Inc. Has $50.14 Million Stock Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Pacer Advisors Inc. grew its position in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 51,977.4% in the fourth quarter, according to the company in its most recent 13F filing with the Securities & Exchange Commission. The fund owned 1,350,368 shares of the company's sJanuary 28, 2025 | marketbeat.comAnalysts Are Bullish on Top Healthcare Stocks: Abbott Laboratories (ABT), Arrowhead Pharmaceuticals (ARWR)January 23, 2025 | markets.businessinsider.comAmphastar reports Q4 adjusted EPS 55c, consensus 50cJanuary 23, 2025 | markets.businessinsider.comCorrection: Amphastar did not report Q4 earnings this morningJanuary 23, 2025 | markets.businessinsider.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Short Interest Up 10.3% in DecemberAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Get Free Report) was the recipient of a large increase in short interest during the month of December. As of December 31st, there was short interest totalling 4,820,000 shares, an increase of 10.3% from the December 15th total of 4,370,000 shares. Based on an average daily trading volume, of 476,100 shares, the short-interest ratio is currently 10.1 days. Approximately 13.5% of the shares of the company are sold short.January 18, 2025 | marketbeat.comAmphastar stock hits 52-week low at $34.6 amid market challengesJanuary 16, 2025 | msn.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Reaches New 52-Week Low - Here's WhyAmphastar Pharmaceuticals (NASDAQ:AMPH) Sets New 12-Month Low - Here's WhyJanuary 16, 2025 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Stock Price Down 2.4% - Should You Sell?Amphastar Pharmaceuticals (NASDAQ:AMPH) Stock Price Down 2.4% - What's Next?January 15, 2025 | marketbeat.comAmphastar Pharmaceuticals, Inc.: Amphastar Pharmaceuticals to Present at the 43rd Annual J.P. Morgan Healthcare ConferenceJanuary 9, 2025 | finanznachrichten.deAmphastar Pharmaceuticals (NASDAQ:AMPH) Trading Up 4.6% - Here's What HappenedAmphastar Pharmaceuticals (NASDAQ:AMPH) Trading 4.6% Higher - Time to Buy?January 8, 2025 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Hits New 1-Year Low - What's Next?Amphastar Pharmaceuticals (NASDAQ:AMPH) Hits New 12-Month Low - What's Next?January 6, 2025 | marketbeat.comAmphastar Pharmaceuticals: Cheap With CaveatsJanuary 3, 2025 | seekingalpha.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Short Interest Up 6.1% in DecemberAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Get Free Report) was the recipient of a significant growth in short interest during the month of December. As of December 15th, there was short interest totalling 4,370,000 shares, a growth of 6.1% from the November 30th total of 4,120,000 shares. Based on an average daily volume of 424,600 shares, the days-to-cover ratio is currently 10.3 days. Currently, 12.2% of the company's shares are short sold.January 1, 2025 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Hits New 1-Year Low - Here's What HappenedAmphastar Pharmaceuticals (NASDAQ:AMPH) Reaches New 12-Month Low - Time to Sell?December 31, 2024 | marketbeat.comPrincipal Financial Group Inc. Cuts Stake in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Principal Financial Group Inc. decreased its position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 7.4% during the 3rd quarter, according to the company in its most recent disclosure with the Securities & Exchange Commission. The institutional investor owned 202,017 sharesDecember 31, 2024 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Shares Down 2.6% - Here's What HappenedAmphastar Pharmaceuticals (NASDAQ:AMPH) Trading Down 2.6% - Here's WhyDecember 24, 2024 | marketbeat.comGeode Capital Management LLC Has $44.67 Million Stake in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Geode Capital Management LLC grew its stake in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 1.5% in the third quarter, according to its most recent disclosure with the Securities and Exchange Commission (SEC). The fund owned 920,363 shares of the company's stock after buying an adDecember 24, 2024 | marketbeat.comBarclays PLC Has $3.61 Million Stake in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Barclays PLC lifted its holdings in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 53.3% in the 3rd quarter, according to its most recent filing with the Securities and Exchange Commission. The firm owned 74,456 shares of the company's stock after acquiring an additional 2December 23, 2024 | marketbeat.comWellington Management Group LLP Acquires New Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Wellington Management Group LLP bought a new position in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) during the third quarter, according to its most recent filing with the Securities and Exchange Commission. The institutional investor bought 19,723 shares of the company'sDecember 20, 2024 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) EVP Sells $310,940.00 in StockDecember 17, 2024 | insidertrades.comInsider Selling: Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) EVP Sells 7,000 Shares of StockAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Get Free Report) EVP Rong Zhou sold 7,000 shares of the business's stock in a transaction that occurred on Thursday, December 12th. The stock was sold at an average price of $44.42, for a total transaction of $310,940.00. Following the sale, the executive vice president now directly owns 118,469 shares in the company, valued at approximately $5,262,392.98. This represents a 5.58 % decrease in their position. The transaction was disclosed in a legal filing with the SEC, which is available through this hyperlink.December 16, 2024 | marketbeat.comWorld Investment Advisors LLC Invests $1.61 Million in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)World Investment Advisors LLC bought a new stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) during the 3rd quarter, according to the company in its most recent disclosure with the Securities & Exchange Commission. The fund bought 33,249 shares of the company's stocDecember 15, 2024 | marketbeat.comAmphastar Pharmaceuticals (NASDAQ:AMPH) Trading Down 5.4% - Here's WhyAmphastar Pharmaceuticals (NASDAQ:AMPH) Shares Down 5.4% - Time to Sell?December 13, 2024 | marketbeat.comXTX Topco Ltd Invests $674,000 in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)XTX Topco Ltd purchased a new stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) in the 3rd quarter, according to its most recent Form 13F filing with the Securities and Exchange Commission. The firm purchased 13,891 shares of the company's stock, valued at approximatelyDecember 13, 2024 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Director Sells $437,700.00 in StockDecember 12, 2024 | insidertrades.comCentiva Capital LP Sells 17,110 Shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Centiva Capital LP lessened its holdings in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 72.6% during the 3rd quarter, according to its most recent filing with the Securities and Exchange Commission (SEC). The firm owned 6,465 shares of the company's stock after selling 17,110 shaDecember 11, 2024 | marketbeat.comPoint72 Asset Management L.P. Sells 197,019 Shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Point72 Asset Management L.P. reduced its stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 83.5% during the 3rd quarter, according to its most recent 13F filing with the SEC. The firm owned 38,817 shares of the company's stock after selling 197,019 shares during theDecember 10, 2024 | marketbeat.comTaika Capital LP Buys New Position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Taika Capital LP bought a new stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) during the 3rd quarter, according to the company in its most recent disclosure with the Securities & Exchange Commission. The fund bought 36,775 shares of the company's stock, valued atDecember 6, 2024 | marketbeat.comHotchkis & Wiley Capital Management LLC Makes New Investment in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Hotchkis & Wiley Capital Management LLC purchased a new position in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) in the third quarter, according to the company in its most recent 13F filing with the SEC. The institutional investor purchased 222,620 shares of the company's stock, valDecember 5, 2024 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Shares Bought by BNP Paribas Financial MarketsBNP Paribas Financial Markets lifted its stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 59.6% during the third quarter, according to the company in its most recent disclosure with the Securities & Exchange Commission. The fund owned 94,466 shares of the companDecember 4, 2024 | marketbeat.comAmphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Shares Sold by Dynamic Technology Lab Private LtdDynamic Technology Lab Private Ltd lessened its holdings in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 70.6% during the 3rd quarter, according to its most recent disclosure with the SEC. The institutional investor owned 4,682 shares of the company's stock after sellinDecember 3, 2024 | marketbeat.comGlenmede Trust Co. NA Grows Stake in Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH)Glenmede Trust Co. NA lifted its stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 145.3% in the third quarter, according to its most recent Form 13F filing with the Securities & Exchange Commission. The institutional investor owned 37,884 shares of the company'December 2, 2024 | marketbeat.comWhy Amphastar Pharmaceuticals (AMPH) Is One of the Most Profitable Pharmaceutical Stocks Right Now?November 30, 2024 | msn.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▼0.330.60▲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. 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