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AMPH Insider Trading (Amphastar Pharmaceuticals)

Insider Ownership Percentage: 28.40%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $6,335,292.84

Amphastar Pharmaceuticals Insider Trading History Chart

This chart shows the insider buying and selling history at Amphastar Pharmaceuticals by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Amphastar Pharmaceuticals Share Price & Price History

Current Price: $18.71
Price Change: Price Increase of +0.03 (0.16%)
As of 09/24/2021 01:00 AM ET

This chart shows the closing price history over time for AMPH up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365
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Amphastar Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
7/26/2021Rong ZhouEVPSell6,000$20.87$125,220.0092,244View SEC Filing Icon  
7/20/2021Rong ZhouEVPSell5,187$20.57$106,696.59View SEC Filing Icon  
7/15/2021Yakob LiawatidewiEVPSell31,524$20.01$630,795.2477,927View SEC Filing Icon  
7/7/2021William J. PetersCFOSell10,000$20.37$203,700.00View SEC Filing Icon  
6/8/2021Rong ZhouEVPSell8,180$19.34$158,201.20View SEC Filing Icon  
6/7/2021Richard K. PrinsDirectorSell5,000$18.70$93,500.00140,741View SEC Filing Icon  
6/3/2021Floyd F. PetersenDirectorSell10,000$18.65$186,500.0083,354View SEC Filing Icon  
6/1/2021Richard KooDirectorSell25,827$19.28$497,944.56279,097View SEC Filing Icon  
5/20/2021Howard LeeDirectorSell10,000$19.74$197,400.00142,914View SEC Filing Icon  
5/13/2021Michael A. ZasloffDirectorSell25,827$19.34$499,494.1867,014View SEC Filing Icon  
5/13/2021Rong ZhouEVPSell700$19.58$13,706.0096,965View SEC Filing Icon  
5/11/2021Richard K. PrinsDirectorSell15,827$18.90$299,130.3054,987View SEC Filing Icon  
5/11/2021Yakob LiawatidewiEVPSell10,000$19.06$190,600.0071,351View SEC Filing Icon  
3/15/2021William J. PetersCFOSell4,244$19.03$80,763.3285,304View SEC Filing Icon  
2/18/2021Jack Y ZhangCEOSell30,467$18.59$566,381.53
2/11/2021Jack Y ZhangCEOSell19,823$19.06$377,826.382,246,988View SEC Filing Icon  
2/9/2021Jack Y ZhangCEOSell40,886$18.92$773,563.122,246,988View SEC Filing Icon  
2/4/2021Jack Y ZhangCEOSell25,570$18.89$483,017.302,246,988View SEC Filing Icon  
2/2/2021Jack Y ZhangCEOSell37,931$18.43$699,068.332,246,988View SEC Filing Icon  
2/1/2021Floyd F. PetersenDirectorSell639$18.26$11,668.1473,354View SEC Filing Icon  
1/19/2021William J. PetersCFOSell6,495$18.67$121,261.65View SEC Filing Icon  
12/1/2020Floyd F. PetersenDirectorSell500$17.87$8,935.0073,993View SEC Filing Icon  
11/2/2020Floyd F. PetersenDirectorSell500$19.84$9,920.0074,493View SEC Filing Icon  
9/1/2020Floyd F. PetersenDirectorSell500$19.90$9,950.0075,493View SEC Filing Icon  
8/14/2020David MarisDirectorBuy1,000$20.26$20,260.0013,151View SEC Filing Icon  
8/14/2020William J. PetersCFOSell5,512$20.36$112,224.3295,652View SEC Filing Icon  
8/11/2020Richard K. PrinsDirectorSell6,000$20.33$121,980.0039,160View SEC Filing Icon  
8/3/2020Floyd F. PetersenDirectorSell500$20.62$10,310.0075,993View SEC Filing Icon  
7/21/2020Yakob LiawatidewiEVPSell5,978$21.22$126,853.1650,182View SEC Filing Icon  
7/6/2020William J. PetersCFOSell13,656$22.00$300,432.00View SEC Filing Icon  
7/1/2020Floyd F. PetersenDirectorSell500$22.27$11,135.0076,493View SEC Filing Icon  
6/9/2020Yakob LiawatidewiEVPSell23,405$20.12$470,908.6069,529View SEC Filing Icon  
6/3/2020Rong ZhouEVPSell13,163$18.82$247,727.66View SEC Filing Icon  
6/1/2020Floyd F. PetersenDirectorSell500$18.97$9,485.0071,142View SEC Filing Icon  
5/27/2020Richard KooDirectorSell47,782$18.18$868,676.76295,201View SEC Filing Icon  
5/20/2020Howard LeeDirectorSell17,782$18.43$327,722.26145,863View SEC Filing Icon  
5/14/2020Michael A. ZasloffDirectorSell14,832$18.00$266,976.0050,168View SEC Filing Icon  
5/12/2020Michael A. ZasloffDirectorSell10,000$19.00$190,000.0045,336View SEC Filing Icon  
5/1/2020Floyd F. PetersenDirectorSell500$16.66$8,330.0071,642View SEC Filing Icon  
4/1/2020Floyd F. PetersenDirectorSell500$14.36$7,180.0072,142View SEC Filing Icon  
3/13/2020William J. PetersCFOSell4,701$13.94$65,531.9476,011View SEC Filing Icon  
2/6/2020Jason B ShandellGeneral CounselSell21,933$19.83$434,931.39154,513View SEC Filing Icon  
1/21/2020William J. PetersCFOSell3,990$20.07$80,079.30View SEC Filing Icon  
1/8/2020Jason B ShandellGeneral CounselSell25,000$18.44$461,000.00163,898View SEC Filing Icon  
1/2/2020Floyd F. PetersenDirectorSell1,000$19.14$19,140.0073,642View SEC Filing Icon  
12/18/2019Jason B ShandellGeneral CounselSell8,205$19.13$156,961.65138,898View SEC Filing Icon  
12/2/2019Floyd F. PetersenDirectorSell500$19.25$9,625.0074,642View SEC Filing Icon  
11/1/2019Floyd F. PetersenDirectorSell500$19.48$9,740.0075,142View SEC Filing Icon  
10/1/2019Floyd F. PetersenDirectorSell500$19.92$9,960.0075,642View SEC Filing Icon  
9/18/2019Jason B ShandellGeneral CounselSell7,340$21.32$156,488.80147,103View SEC Filing Icon  
9/16/2019Floyd F. PetersenDirectorSell500$21.75$10,875.0076,142View SEC Filing Icon  
9/16/2019William J. PetersCFOSell9,800$21.76$213,248.0092,253View SEC Filing Icon  
9/13/2019Yakob LiawatidewiSVPSell3,000$21.45$64,350.0033,670View SEC Filing Icon  
9/11/2019Jack Y ZhangCEOSell300,000$20.82$6,246,000.002,147,316View SEC Filing Icon  
9/5/2019Yakob LiawatidewiSVPSell1,515$21.24$32,178.6036,670View SEC Filing Icon  
8/26/2019Richard K. PrinsDirectorSell7,500$22.59$169,425.0043,191View SEC Filing Icon  
8/23/2019Richard K. PrinsDirectorSell3,882$22.58$87,655.5643,191View SEC Filing Icon  
8/15/2019William J. PetersCFOSell4,942$21.00$103,782.00View SEC Filing Icon  
8/13/2019Richard K. PrinsDirectorSell10,000$20.78$207,800.0049,309View SEC Filing Icon  
8/13/2019Yakob LiawatidewiSVPSell5,000$20.73$103,650.0047,188View SEC Filing Icon  
7/10/2019Jason B. ShandellInsiderSell6,615$20.31$134,350.65View SEC Filing Icon  
5/6/2019Rong ZhouEVPSell9,600$22.76$218,496.0066,707View SEC Filing Icon  
5/1/2019Jason B ShandellInsiderSell10,000$21.97$219,700.00View SEC Filing Icon  
4/16/2019Jason B ShandellGeneral CounselSell9,478$20.67$195,910.26159,947View SEC Filing Icon  
3/15/2019Jason B ShandellInsiderSell32,336$20.35$658,037.60160,490View SEC Filing Icon  
3/4/2019William J. PetersCFOSell1,500$25.36$38,040.0077,050View SEC Filing Icon  
3/1/2019Jason B ShandellInsiderSell7,500$24.99$187,425.00175,818View SEC Filing Icon  
3/1/2019Rong ZhouEVPSell3,200$25.00$80,000.0055,230View SEC Filing Icon  
2/15/2019William J. PetersCFOSell10,016$24.37$244,089.9285,566View SEC Filing Icon  
2/14/2019Jason B ShandellInsiderSell7,519$23.99$180,380.81175,837View SEC Filing Icon  
2/14/2019Yakob LiawatidewiSVPSell8,868$23.86$211,590.4839,883View SEC Filing Icon  
2/12/2019Yakob LiawatidewiSVPSell4,000$23.70$94,800.0039,883View SEC Filing Icon  
2/5/2019Rong ZhouEVPSell4,289$23.00$98,647.0056,319View SEC Filing Icon  
2/5/2019Yakob LiawatidewiSVPSell11,397$23.18$264,182.4647,280View SEC Filing Icon  
1/23/2019Jason B ShandellInsiderSell15,497$22.39$346,977.83168,518View SEC Filing Icon  
1/23/2019Yakob LiawatidewiSVPSell7,000$22.52$157,640.0040,463View SEC Filing Icon  
1/16/2019Yakob LiawatidewiSVPSell3,183$22.15$70,503.4537,471View SEC Filing Icon  
1/14/2019Yakob LiawatidewiSVPSell8$22.15$177.2037,471View SEC Filing Icon  
1/2/2019William J. PetersCFOSell3,245$19.52$63,342.4075,550View SEC Filing Icon  
12/14/2018Richard K. PrinsDirectorSell1,616$20.65$33,370.4033,818View SEC Filing Icon  
12/13/2018Jack Y ZhangCEOSell29,689$20.99$623,172.112,115,894View SEC Filing Icon  
12/13/2018Physics & Chemistry La AppliedMajor ShareholderSell133,915$21.29$2,851,050.357,398,090View SEC Filing Icon  
12/11/2018Jack Y ZhangCEOSell66,757$21.47$1,433,272.792,115,894View SEC Filing Icon  
12/11/2018Richard KooDirectorSell29,278$21.32$624,206.9689,263View SEC Filing Icon  
12/7/2018Howard LeeDirectorSell29,278$21.67$634,454.26133,381View SEC Filing Icon  
12/3/2018Jason B. ShandellInsiderSell16,630$22.44$373,177.20View SEC Filing Icon  
12/3/2018Rong ZhouEVPSell1,089$22.00$23,958.00View SEC Filing Icon  
12/3/2018William J. PetersCFOSell10,000$22.40$224,000.00133,381View SEC Filing Icon  
11/30/2018Yakob LiawatidewiSVPSell13,980$21.50$300,570.0048,963View SEC Filing Icon  
11/29/2018Richard K. PrinsDirectorSell5,000$20.50$102,500.00View SEC Filing Icon  
11/28/2018Yakob LiawatidewiSVPSell1,520$20.49$31,144.8037,463View SEC Filing Icon  
11/23/2018Yakob LiawatidewiSVPSell1,299$20.26$26,317.7437,463View SEC Filing Icon  
11/14/2018Jason B ShandellInsiderSell16,015$20.41$326,866.15183,890View SEC Filing Icon  
11/14/2018Richard K. PrinsDirectorSell5,000$20.23$101,150.0040,434View SEC Filing Icon  
11/12/2018William J. PetersCFOSell38,484$20.74$798,158.16106,636View SEC Filing Icon  
11/9/2018Jason B ShandellGeneral CounselSell16,095$20.99$337,834.05204,805View SEC Filing Icon  
11/9/2018Rong ZhouEVPSell2,173$20.50$44,546.5054,392View SEC Filing Icon  
11/9/2018William J. PetersCFOSell10,000$21.47$214,700.00106,636View SEC Filing Icon  
11/9/2018Yakob LiawatidewiSVPSell17,808$20.97$373,433.7646,763View SEC Filing Icon  
See Full Table
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SEC Filings (Institutional Ownership Changes) for Amphastar Pharmaceuticals (NASDAQ:AMPH)

56.53% of Amphastar Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at AMPH by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Amphastar Pharmaceuticals Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/3/2021Parametric Portfolio Associates LLC152,030$3.07M0.0%+37.6%0.317%Search for SEC Filing on Google Icon
8/26/2021Comerica Bank32,650$0.61M0.0%-7.8%0.068%Search for SEC Filing on Google Icon
8/23/2021Morgan Stanley414,225$8.35M0.0%+21.3%0.862%Search for SEC Filing on Google Icon
8/17/2021Wells Fargo & Company MN368,019$7.42M0.0%+101.8%0.766%Search for SEC Filing on Google Icon
8/17/2021Invesco Ltd.788,414$15.90M0.0%-15.6%1.641%Search for SEC Filing on Google Icon
8/17/2021Metropolitan Life Insurance Co NY12,543$0.25M0.0%+113,927.3%0.026%Search for SEC Filing on Google Icon
8/17/2021Millennium Management LLC16,510$0.33M0.0%-86.2%0.034%Search for SEC Filing on Google Icon
8/17/2021Oberweis Asset Management Inc.10,600$0.21M0.0%N/A0.022%Search for SEC Filing on Google Icon
8/17/2021Prudential Financial Inc.181,665$3.66M0.0%-24.1%0.378%Search for SEC Filing on Google Icon
8/17/2021Citadel Advisors LLC24,373$0.49M0.0%-11.1%0.051%Search for SEC Filing on Google Icon
8/16/2021Squarepoint Ops LLC40,760$0.82M0.0%N/A0.085%Search for SEC Filing on Google Icon
8/16/2021AQR Capital Management LLC19,868$0.40M0.0%-19.0%0.041%Search for SEC Filing on Google Icon
8/16/2021Bank of America Corp DE62,936$1.27M0.0%-5.5%0.131%Search for SEC Filing on Google Icon
8/16/2021Amalgamated Bank18,011$0.36M0.0%N/A0.037%Search for SEC Filing on Google Icon
8/16/2021UBS Asset Management Americas Inc.43,811$0.88M0.0%+6.6%0.091%Search for SEC Filing on Google Icon
8/16/2021FORA Capital LLC1,338$27K0.0%N/A0.003%Search for SEC Filing on Google Icon
8/16/2021Cubist Systematic Strategies LLC20,363$0.41M0.0%+35.7%0.042%Search for SEC Filing on Google Icon
8/16/2021California State Teachers Retirement System51,101$1.03M0.0%-7.0%0.106%Search for SEC Filing on Google Icon
8/16/2021Occudo Quantitative Strategies LP13,910$0.28M0.0%N/A0.029%Search for SEC Filing on Google Icon
8/16/2021Royal Bank of Canada3,534$71K0.0%+253.4%0.007%Search for SEC Filing on Google Icon
8/16/2021Tudor Investment Corp Et Al37,433$0.76M0.0%-14.5%0.078%Search for SEC Filing on Google Icon
8/16/2021Morgan Stanley414,225$8.35M0.0%+21.3%0.862%Search for SEC Filing on Google Icon
8/16/2021Credit Suisse AG39,074$0.79M0.0%-5.8%0.081%Search for SEC Filing on Google Icon
8/16/2021Charles Schwab Investment Management Inc.253,387$5.11M0.0%+2.2%0.528%Search for SEC Filing on Google Icon
8/16/2021State Street Corp1,439,931$29.03M0.0%+2.5%2.998%Search for SEC Filing on Google Icon
8/16/2021Nuveen Asset Management LLC419,137$8.45M0.0%+139.0%0.873%Search for SEC Filing on Google Icon
8/16/2021Federated Hermes Inc.3,341,501$67.36M0.1%-2.9%6.957%Search for SEC Filing on Google Icon
8/16/2021Silvercrest Asset Management Group LLC377,455$7.61M0.0%+28.6%0.786%Search for SEC Filing on Google Icon
8/16/2021Goldman Sachs Group Inc.844,062$17.02M0.0%+17.4%1.757%Search for SEC Filing on Google Icon
8/13/2021Renaissance Technologies LLC247,100$4.98M0.0%+9.5%0.514%Search for SEC Filing on Google Icon
8/13/2021Northern Trust Corp433,603$8.74M0.0%-5.8%0.903%Search for SEC Filing on Google Icon
8/13/2021Jump Financial LLC37,700$0.76M0.1%N/A0.078%Search for SEC Filing on Google Icon
8/13/2021Ensign Peak Advisors Inc10,900$0.22M0.0%+240.6%0.023%Search for SEC Filing on Google Icon
8/13/2021Geode Capital Management LLC689,084$13.89M0.0%+4.3%1.435%Search for SEC Filing on Google Icon
8/13/2021Vanguard Group Inc.2,459,731$49.59M0.0%-3.7%5.121%Search for SEC Filing on Google Icon
8/13/2021Public Sector Pension Investment Board74,952$1.51M0.0%-24.9%0.156%Search for SEC Filing on Google Icon
8/13/2021ProShare Advisors LLC19,158$0.39M0.0%+10.2%0.040%Search for SEC Filing on Google Icon
8/13/2021Fuller & Thaler Asset Management Inc.399,445$8.05M0.1%+0.4%0.832%Search for SEC Filing on Google Icon
8/12/2021Lazard Asset Management LLC3,479$70K0.0%N/A0.007%Search for SEC Filing on Google Icon
8/12/2021Dimensional Fund Advisors LP1,695,893$34.19M0.0%+0.4%3.560%Search for SEC Filing on Google Icon
8/12/2021Globeflex Capital L P16,457$0.33M0.1%N/A0.035%Search for SEC Filing on Google Icon
8/12/2021Legal & General Group Plc76,601$1.54M0.0%-24.5%0.161%Search for SEC Filing on Google Icon
8/12/2021JPMorgan Chase & Co.181,995$3.67M0.0%+305.2%0.382%Search for SEC Filing on Google Icon
8/12/2021Bank of Montreal Can15,868$0.33M0.0%+37.2%0.033%Search for SEC Filing on Google Icon
8/12/2021Shell Asset Management Co.38,622$0.78M0.0%+5.7%0.081%Search for SEC Filing on Google Icon
8/11/2021Bank of New York Mellon Corp355,548$7.17M0.0%-6.1%0.746%Search for SEC Filing on Google Icon
8/11/2021BlackRock Inc.7,269,619$146.56M0.0%-1.5%15.261%Search for SEC Filing on Google Icon
8/11/2021Deutsche Bank AG75,877$1.53M0.0%+72.9%0.159%Search for SEC Filing on Google Icon
8/11/2021Eagle Asset Management Inc.304,474$6.14M0.0%-1.9%0.639%Search for SEC Filing on Google Icon
8/11/2021Panagora Asset Management Inc.7,916$0.16M0.0%-13.9%0.017%Search for SEC Filing on Google Icon
8/11/2021Factorial Partners LLC20,000$0.40M0.3%N/A0.042%Search for SEC Filing on Google Icon
8/10/2021Principal Financial Group Inc.253,684$5.11M0.0%+0.9%0.533%Search for SEC Filing on Google Icon
8/10/2021BNP Paribas Arbitrage SA22,649$0.46M0.0%+50.9%0.048%Search for SEC Filing on Google Icon
8/10/2021Aigen Investment Management LP12,390$0.25M0.0%-22.9%0.026%Search for SEC Filing on Google Icon
8/10/2021State Board of Administration of Florida Retirement System22,334$0.45M0.0%-55.8%0.047%Search for SEC Filing on Google Icon
8/10/2021Citigroup Inc.25,202$0.51M0.0%+98.6%0.053%Search for SEC Filing on Google Icon
8/10/2021WINTON GROUP Ltd53,752$1.08M0.1%+8.0%0.113%Search for SEC Filing on Google Icon
8/9/2021Frontier Capital Management Co. LLC184,979$3.73M0.0%N/A0.388%Search for SEC Filing on Google Icon
8/6/2021Nisa Investment Advisors LLC32,264$0.65M0.0%-7.7%0.068%Search for SEC Filing on Google Icon
8/6/2021Swiss National Bank83,800$1.69M0.0%-2.4%0.176%Search for SEC Filing on Google Icon
8/5/2021American Century Companies Inc.93,288$1.88M0.0%N/A0.196%Search for SEC Filing on Google Icon
8/5/2021Rhumbline Advisers91,326$1.84M0.0%+8.4%0.192%Search for SEC Filing on Google Icon
8/4/2021LSV Asset Management30,400$0.61M0.0%N/A0.064%Search for SEC Filing on Google Icon
8/2/2021Arizona State Retirement System10,330$0.21M0.0%-6.6%0.022%Search for SEC Filing on Google Icon
8/1/2021Exchange Traded Concepts LLC57,851$1.17M0.0%+10.5%0.121%Search for SEC Filing on Google Icon
8/1/2021Zurcher Kantonalbank Zurich Cantonalbank3,549$72K0.0%-33.5%0.007%Search for SEC Filing on Google Icon
7/31/2021Ziegler Capital Management LLC33,747$0.68M0.0%N/A0.071%Search for SEC Filing on Google Icon
7/12/2021State of Alaska Department of Revenue25,378$0.51M0.0%+2.5%0.053%Search for SEC Filing on Google Icon
5/22/2021Teachers Retirement System of The State of Kentucky10,331$0.19M0.0%+46.9%0.022%Search for SEC Filing on Google Icon
5/18/2021Millennium Management LLC119,695$2.19M0.0%-33.4%0.251%Search for SEC Filing on Google Icon
5/18/2021D. E. Shaw & Co. Inc.17,778$0.33M0.0%+38.0%0.037%Search for SEC Filing on Google Icon
5/18/2021Morgan Stanley341,600$6.26M0.0%+2.9%0.717%Search for SEC Filing on Google Icon
5/18/2021Tudor Investment Corp Et Al43,789$0.80M0.0%+67.6%0.092%Search for SEC Filing on Google Icon
5/18/2021Cubist Systematic Strategies LLC15,006$0.28M0.0%N/A0.032%Search for SEC Filing on Google Icon
5/17/2021Great West Life Assurance Co. Can30,450$0.56M0.0%-13.7%0.064%Search for SEC Filing on Google Icon
5/17/2021AQR Capital Management LLC24,521$0.45M0.0%-33.1%0.051%Search for SEC Filing on Google Icon
5/17/2021Captrust Financial Advisors1,492$27K0.0%+1,889.3%0.003%Search for SEC Filing on Google Icon
5/17/2021Ameriprise Financial Inc.194,086$3.56M0.0%+3.3%0.407%Search for SEC Filing on Google Icon
5/17/2021Nuveen Asset Management LLC175,388$3.21M0.0%-6.0%0.368%Search for SEC Filing on Google Icon
5/17/2021Nordea Investment Management AB254,470$4.60M0.0%-2.3%0.534%Search for SEC Filing on Google Icon
5/17/2021Goldman Sachs Group Inc.718,882$13.17M0.0%+30.0%1.509%Search for SEC Filing on Google Icon
5/14/2021Arrowstreet Capital Limited Partnership55,869$1.02M0.0%N/A0.117%Search for SEC Filing on Google Icon
5/14/2021Dimensional Fund Advisors LP1,689,089$31.01M0.0%-6.5%3.546%Search for SEC Filing on Google Icon
5/14/2021Credit Suisse AG41,501$0.76M0.0%-17.8%0.087%Search for SEC Filing on Google Icon
5/14/2021Quantbot Technologies LP2,900$53K0.0%+866.7%0.006%Search for SEC Filing on Google Icon
5/13/2021Franklin Resources Inc.10,366$0.19M0.0%N/A0.022%Search for SEC Filing on Google Icon
5/13/2021Trexquant Investment LP12,503$0.23M0.0%N/A0.026%Search for SEC Filing on Google Icon
5/13/2021SG Americas Securities LLC5,487$0.10M0.0%N/A0.012%Search for SEC Filing on Google Icon
5/13/2021Barclays PLC75,117$1.38M0.0%+3.1%0.158%Search for SEC Filing on Google Icon
5/13/2021Renaissance Technologies LLC225,600$4.13M0.0%-27.8%0.474%Search for SEC Filing on Google Icon
5/13/2021Bank of New York Mellon Corp378,683$6.94M0.0%-2.0%0.795%Search for SEC Filing on Google Icon
5/13/2021Cornercap Investment Counsel Inc.54,751$1M0.1%N/A0.115%Search for SEC Filing on Google Icon
5/13/2021Citigroup Inc.12,687$0.23M0.0%-12.7%0.027%Search for SEC Filing on Google Icon
5/13/2021Federated Hermes Inc.3,441,367$63.05M0.1%+6.7%7.224%Search for SEC Filing on Google Icon
5/13/2021Allianz Asset Management GmbH27,761$0.51M0.0%N/A0.058%Search for SEC Filing on Google Icon
5/12/2021Northern Trust Corp460,410$8.44M0.0%-5.9%0.967%Search for SEC Filing on Google Icon
5/12/2021Ergoteles LLC15,543$0.29M0.0%N/A0.033%Search for SEC Filing on Google Icon
5/12/2021Geode Capital Management LLC660,413$12.10M0.0%+15.0%1.386%Search for SEC Filing on Google Icon
5/12/2021Prudential Financial Inc.239,337$4.39M0.0%-17.2%0.502%Search for SEC Filing on Google Icon
5/12/2021Ensign Peak Advisors Inc3,200$59K0.0%N/A0.007%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Amphastar Pharmaceuticals logo
Amphastar Pharmaceuticals, Inc. engages in the development, manufacture, market, and sale of technically challenging and proprietary injectable, inhalation, and intranasal products. It operates through Finished Pharmaceutical Products and Active Pharmaceutical Ingredients Products segments. The Finished Pharmaceutical Products segment manufactures, markets, and distributes Primatene Mist, enoxaparin, naloxone, phytonadione, lidocaine, and other critical and non-critical care drugs. The Active Pharmaceutical Ingredients Products segment manufactures and distributes recombinant human insulin and porcine insulin. The company was founded by Zi-Ping Luo and Yong Feng Zhang on February 29, 1996 and is headquartered in Rancho Cucamonga, CA.
Read More on Amphastar Pharmaceuticals

Today's Range

Now: $18.71
Low: $18.62
High: $18.79

50 Day Range

MA: $19.48
Low: $17.83
High: $21.49

52 Week Range

Now: $18.71
Low: $16.91
High: $21.63

Volume

76,868 shs

Average Volume

197,637 shs

Market Capitalization

$898.68 million

P/E Ratio

89.10

Dividend Yield

N/A

Beta

0.74

Who are the company insiders with the largest holdings of Amphastar Pharmaceuticals?

Amphastar Pharmaceuticals' top insider shareholders include:
  1. Jack Y Zhang (CEO)
  2. Richard Koo (Director)
  3. Jason B Shandell (General Counsel)
  4. Howard Lee (Director)
  5. Richard K Prins (Director)
  6. Rong Zhou (EVP)
  7. William J Peters (CFO)
  8. Floyd F Petersen (Director)
  9. Yakob Liawatidewi (EVP)
  10. Michael A Zasloff (Director)
  11. David Maris (Director)
  12. William J Peters (CFO)

Who are the major institutional investors of Amphastar Pharmaceuticals?

Amphastar Pharmaceuticals' top institutional shareholders include:
  1. BlackRock Inc. — 15.26%
  2. Federated Hermes Inc. — 6.96%
  3. Vanguard Group Inc. — 5.12%
  4. Dimensional Fund Advisors LP — 3.56%
  5. State Street Corp — 3.00%
  6. Goldman Sachs Group Inc. — 1.76%

Which institutional investors are selling Amphastar Pharmaceuticals stock?

During the previous quarter, AMPH stock was sold by these institutional investors:
  1. Invesco Ltd.
  2. BlackRock Inc.
  3. Millennium Management LLC
  4. Federated Hermes Inc.
  5. Vanguard Group Inc.
  6. Prudential Financial Inc.
  7. State Board of Administration of Florida Retirement System
  8. Northern Trust Corp
In the last year, company insiders that have sold Amphastar Pharmaceuticals company stock include:
  1. Jack Y Zhang (CEO)
  2. Richard Koo (Director)
  3. Jason B Shandell (General Counsel)
  4. Howard Lee (Director)
  5. Richard K Prins (Director)
  6. Rong Zhou (EVP)
  7. William J Peters (CFO)
  8. Floyd F Petersen (Director)
  9. Yakob Liawatidewi (EVP)
  10. Michael A Zasloff (Director)

Which institutional investors are buying Amphastar Pharmaceuticals stock?

During the last quarter, AMPH stock was bought by institutional investors including:
  1. Nuveen Asset Management LLC
  2. Wells Fargo & Company MN
  3. Frontier Capital Management Co. LLC
  4. JPMorgan Chase & Co.
  5. Goldman Sachs Group Inc.
  6. American Century Companies Inc.
  7. Silvercrest Asset Management Group LLC
  8. Morgan Stanley
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