AMPH Insider Trading

Insider Ownership Percentage: 27.10%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $18,554,300.27

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: $51.56
Price Change: Price Increase of +0.97 (1.92%)
As of 11/5/2024 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

Amphastar Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
9/5/2024Floyd F. PetersenDirectorSell3,000$46.47$139,410.0075,409View SEC Filing Icon  
8/26/2024Rong ZhouEVPSell4,000$48.35$193,400.00118,388View SEC Filing Icon  
8/12/2024Richard K. PrinsDirectorSell17,101$43.07$736,540.0733,971View SEC Filing Icon  
7/31/2024William J. PetersCFOSell10,282$44.23$454,772.8694,103View SEC Filing Icon  
6/27/2024William J. PetersCFOSell3,596$40.93$147,184.2894,103View SEC Filing Icon  
6/10/2024Floyd F. PetersenDirectorSell3,000$41.40$124,200.0078,409View SEC Filing Icon  
6/3/2024Floyd F. PetersenDirectorSell500$42.65$21,325.0078,333View SEC Filing Icon  
5/1/2024Floyd F. PetersenDirectorSell500$41.67$20,835.0078,833View SEC Filing Icon  
4/1/2024Floyd F. PetersenDirectorSell500$43.43$21,715.0079,333View SEC Filing Icon  
3/5/2024Michael A. ZasloffDirectorSell12,500$47.18$589,750.0021,326View SEC Filing Icon  
3/1/2024Floyd F. PetersenDirectorSell500$45.69$22,845.0079,833View SEC Filing Icon  
2/1/2024Floyd F. PetersenDirectorSell500$53.10$26,550.0080,333View SEC Filing Icon  
1/10/2024Mary Z. LuoCOOSell131,386$54.59$7,172,361.741,104,416View SEC Filing Icon  
1/8/2024Mary Z. LuoCOOSell133,644$58.93$7,875,640.921,321,958View SEC Filing Icon  
1/2/2024Floyd F. PetersenDirectorSell500$61.37$30,685.0080,833View SEC Filing Icon  
12/4/2023Rong ZhouEVPSell3,514$59.58$209,364.12112,420View SEC Filing Icon  
12/1/2023Floyd F. PetersenDirectorSell500$57.90$28,950.0081,333View SEC Filing Icon  
12/1/2023Rong ZhouEVPSell4,316$58.58$252,831.28112,420View SEC Filing Icon  
11/17/2023Richard K. PrinsDirectorSell4,000$55.86$223,440.0031,895View SEC Filing Icon  
11/13/2023Richard K. PrinsDirectorSell5,000$52.50$262,500.0035,895View SEC Filing Icon  
11/1/2023Floyd F. PetersenDirectorSell500$45.30$22,650.0081,833View SEC Filing Icon  
10/2/2023Floyd F. PetersenDirectorSell500$45.78$22,890.0082,333View SEC Filing Icon  
9/6/2023William J. PetersCFOSell60,743$51.75$3,143,450.25101,360View SEC Filing Icon  
8/28/2023Yakob LiawatidewiEVPSell28,816$53.13$1,530,994.0869,669View SEC Filing Icon  
8/18/2023Richard K. PrinsDirectorSell2,000$52.50$105,000.0040,895View SEC Filing Icon  
8/15/2023Michael A. ZasloffDirectorSell12,759$57.22$730,069.9833,826View SEC Filing Icon  
6/15/2023Rong ZhouEVPSell5,000$51.79$258,950.0096,888View SEC Filing Icon  
6/15/2023William J. PetersCFOSell36,868$50.85$1,874,737.80105,603View SEC Filing Icon  
6/13/2023Rong ZhouEVPSell5,000$48.24$241,200.0088,313View SEC Filing Icon  
6/2/2023William J. PetersCFOSell11,000$46.35$509,850.00105,603View SEC Filing Icon  
6/1/2023Howard LeeDirectorSell16,679$45.02$750,888.58142,939View SEC Filing Icon  
5/18/2023Rong ZhouEVPSell10,000$44.20$442,000.0087,598View SEC Filing Icon  
5/18/2023William J. PetersCFOSell10,500$44.35$465,675.00105,148View SEC Filing Icon  
5/17/2023Floyd F. PetersenDirectorSell5,000$43.13$215,650.0080,117View SEC Filing Icon  
5/15/2023Michael A. ZasloffDirectorSell7,500$42.18$316,350.0043,869View SEC Filing Icon  
5/12/2023Richard K. PrinsDirectorSell5,000$42.06$210,300.0047,342View SEC Filing Icon  
4/17/2023William J. PetersCFOSell5,632$42.35$238,515.20105,148View SEC Filing Icon  
4/13/2023William J. PetersCFOSell4,868$42.35$206,159.80105,148View SEC Filing Icon  
4/13/2023Yakob LiawatidewiEVPSell11,494$41.56$477,690.6469,215View SEC Filing Icon  
4/10/2023William J. PetersCFOSell10,032$40.35$404,791.20105,148View SEC Filing Icon  
4/10/2023Yakob LiawatidewiEVPSell5,000$40.00$200,000.0069,215View SEC Filing Icon  
4/3/2023Floyd F. PetersenDirectorSell491$37.72$18,520.5285,117View SEC Filing Icon  
3/15/2023William J. PetersCFOSell12,776$36.43$465,429.68118,451View SEC Filing Icon  
3/1/2023Floyd F. PetersenDirectorSell500$36.70$18,350.0085,608View SEC Filing Icon  
2/1/2023Floyd F. PetersenDirectorSell500$30.35$15,175.0086,108View SEC Filing Icon  
12/1/2022Floyd F. PetersenDirectorSell500$30.13$15,065.0087,108View SEC Filing Icon  
10/3/2022Floyd F. PetersenDirectorSell500$28.59$14,295.0088,108View SEC Filing Icon  
8/9/2022William J. PetersCFOSell10,000$38.35$383,500.00100,480View SEC Filing Icon  
8/9/2022Yakob LiawatidewiEVPSell3,055$39.00$119,145.0061,607View SEC Filing Icon  
8/1/2022Floyd F. PetersenDirectorSell500$37.48$18,740.0089,108View SEC Filing Icon  
7/18/2022Diane G. GerstDirectorSell1,520$37.23$56,589.6012,842View SEC Filing Icon  
7/15/2022Yakob LiawatidewiEVPSell10,837$36.64$397,067.6861,607View SEC Filing Icon  
7/11/2022Diane G. GerstDirectorSell1,521$36.26$55,151.4612,842View SEC Filing Icon  
7/5/2022Diane G. GerstDirectorSell1,813$35.00$63,455.0012,842View SEC Filing Icon  
7/1/2022Floyd F. PetersenDirectorSell500$34.78$17,390.0089,608View SEC Filing Icon  
6/30/2022William J. PetersCFOSell18,386$34.95$642,590.70100,480View SEC Filing Icon  
6/17/2022William J. PetersCFOSell5,512$32.05$176,659.60100,480View SEC Filing Icon  
6/6/2022Howard LeeDirectorSell10,291$37.79$388,896.89138,776View SEC Filing Icon  
6/1/2022Floyd F. PetersenDirectorSell500$37.00$18,500.0085,945View SEC Filing Icon  
5/23/2022Howard LeeDirectorSell10,000$34.93$349,300.00138,776View SEC Filing Icon  
5/18/2022Floyd F. PetersenDirectorSell9,924$35.05$347,836.2086,445View SEC Filing Icon  
5/18/2022Jack Y. ZhangCEOSell67,046$34.14$2,288,950.442,156,523View SEC Filing Icon  
5/16/2022Michael A. ZasloffDirectorSell10,291$35.61$366,462.5147,206View SEC Filing Icon  
5/2/2022Floyd F. PetersenDirectorSell295$35.18$10,378.1076,078View SEC Filing Icon  
4/1/2022Floyd F. PetersenDirectorSell500$36.69$18,345.0076,373View SEC Filing Icon  
3/16/2022Michael A. ZasloffDirectorSell10,000$33.71$337,100.00View SEC Filing Icon  
3/15/2022William J. PetersCFOSell7,900$34.46$272,234.00View SEC Filing Icon  
3/1/2022Floyd F. PetersenDirectorSell500$27.27$13,635.00View SEC Filing Icon  
2/8/2022Rong ZhouEVPSell7,000$26.77$187,390.00View SEC Filing Icon  
2/8/2022William J. PetersCFOSell10,000$26.95$269,500.00View SEC Filing Icon  
2/1/2022Floyd F. PetersenDirectorSell500$24.08$12,040.00View SEC Filing Icon  
1/10/2022Rong ZhouEVPSell20,928$25.36$530,734.08View SEC Filing Icon  
1/10/2022William J. PetersCFOSell16,000$25.40$406,400.00View SEC Filing Icon  
1/7/2022William J. PetersCFOSell31,776$24.43$776,287.68View SEC Filing Icon  
1/3/2022Floyd F. PetersenDirectorSell500$23.22$11,610.00View SEC Filing Icon  
12/22/2021Floyd F. PetersenDirectorSell1,000$22.50$22,500.00View SEC Filing Icon  
12/21/2021William J. PetersCFOSell8,256$22.40$184,934.40View SEC Filing Icon  
12/16/2021William J. PetersCFOSell1,744$22.40$39,065.60View SEC Filing Icon  
12/10/2021Richard K. PrinsDirectorSell5,291$21.36$113,015.76View SEC Filing Icon  
11/22/2021Richard K. PrinsDirectorSell5,000$21.22$106,100.00View SEC Filing Icon  
11/11/2021Rong ZhouEVPSell7,813$21.67$169,307.71View SEC Filing Icon  
11/11/2021William J. PetersCFOSell10,000$21.33$213,300.00View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Amphastar Pharmaceuticals (NASDAQ:AMPH)

65.09% 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
11/5/2024Chase Investment Counsel Corp29,000$1.41M0.5%+45.0%0.060%Search for SEC Filing on Google Icon
11/5/2024Victory Capital Management Inc.218,531$10.61M0.0%+10.9%0.449%Search for SEC Filing on Google Icon
11/5/2024GSA Capital Partners LLP6,249$0.30M0.0%N/A0.013%Search for SEC Filing on Google Icon
11/4/2024Los Angeles Capital Management LLC16,169$0.79M0.0%N/A0.033%Search for SEC Filing on Google Icon
11/1/2024Assetmark Inc.43,906$2.13M0.0%+9.1%0.090%Search for SEC Filing on Google Icon
10/31/2024Principal Financial Group Inc.202,017$9.80M0.0%-7.4%0.413%Search for SEC Filing on Google Icon
10/30/2024Amalgamated Bank11,276$0.55M0.0%-1.8%0.023%Search for SEC Filing on Google Icon
10/30/2024AlphaCentric Advisors LLC30,000$1.46M1.1%+20.0%0.061%Search for SEC Filing on Google Icon
10/30/2024Asset Management One Co. Ltd.1,609$78K0.0%N/A0.003%Search for SEC Filing on Google Icon
10/28/2024US Bancorp DE7,368$0.36M0.0%-48.7%0.015%Search for SEC Filing on Google Icon
10/25/2024New York State Teachers Retirement System23,866$1.16M0.0%-14.7%0.049%Search for SEC Filing on Google Icon
10/25/2024China Universal Asset Management Co. Ltd.9,362$0.45M0.1%+63.0%0.019%Search for SEC Filing on Google Icon
10/24/2024Nisa Investment Advisors LLC720$35K0.0%-37.6%0.001%Search for SEC Filing on Google Icon
10/24/2024State of Alaska Department of Revenue21,667$1.05M0.0%-3.3%0.044%Search for SEC Filing on Google Icon
10/24/2024Boston Trust Walden Corp539,639$26.19M0.2%N/A1.104%Search for SEC Filing on Google Icon
10/24/2024Arkadios Wealth Advisors26,585$1.29M0.1%+3.2%0.054%Search for SEC Filing on Google Icon
10/23/2024Mirae Asset Global Investments Co. Ltd.1,761$85K0.0%+20.6%0.004%Search for SEC Filing on Google Icon
10/23/2024Louisiana State Employees Retirement System18,400$0.89M0.0%-4.2%0.038%Search for SEC Filing on Google Icon
10/23/2024Dakota Wealth Management4,164$0.20M0.0%N/A0.009%Search for SEC Filing on Google Icon
10/23/2024Assenagon Asset Management S.A.167,355$8.12M0.0%-11.7%0.342%Search for SEC Filing on Google Icon
10/23/2024Moody Aldrich Partners LLC100,340$4.87M0.9%+80.0%0.205%Search for SEC Filing on Google Icon
10/22/2024International Assets Investment Management LLC22,809$11.07M0.0%N/A0.047%Search for SEC Filing on Google Icon
10/22/2024Guidance Capital Inc.10,388$0.53M0.2%+6.3%0.021%Search for SEC Filing on Google Icon
10/21/2024Retirement Guys Formula LLC4,185$0.20M0.1%N/A0.009%Search for SEC Filing on Google Icon
10/19/2024Allspring Global Investments Holdings LLC24,263$1.18M0.0%-40.7%0.050%Search for SEC Filing on Google Icon
10/18/2024Raymond James & Associates116,677$5.66M0.0%+1.7%0.239%Search for SEC Filing on Google Icon
10/16/2024nVerses Capital LLC2,600$0.13M0.1%+18.2%0.005%Search for SEC Filing on Google Icon
10/9/2024Juncture Wealth Strategies LLC10,652$0.52M0.2%-5.1%0.022%Search for SEC Filing on Google Icon
10/7/2024GAMMA Investing LLC663$32K0.0%+70.0%0.001%Search for SEC Filing on Google Icon
10/3/2024SG Americas Securities LLC35,234$1.71M0.0%N/A0.072%Search for SEC Filing on Google Icon
9/20/2024Healthcare of Ontario Pension Plan Trust Fund9,100$0.36M0.0%N/A0.019%Search for SEC Filing on Google Icon
9/16/2024Point72 DIFC Ltd2,127$85K0.0%-79.8%0.004%Search for SEC Filing on Google Icon
9/16/2024Point72 Asia Singapore Pte. Ltd.746$30K0.0%-83.4%0.002%Search for SEC Filing on Google Icon
9/6/2024Cim LLC10,016$0.40M0.1%+7.5%0.020%Search for SEC Filing on Google Icon
9/5/2024Sanctuary Advisors LLC9,439$0.39M0.0%N/A0.019%Search for SEC Filing on Google Icon
8/22/2024Aurora Investment Counsel54,466$2.18M1.3%N/A0.111%Search for SEC Filing on Google Icon
8/21/2024Truist Financial Corp14,485$0.58M0.0%-5.8%0.030%Search for SEC Filing on Google Icon
8/19/2024Point72 Asset Management L.P.235,836$9.43M0.0%-10.1%0.482%Search for SEC Filing on Google Icon
8/16/2024Invst LLC11,638$0.45M0.0%+101.3%0.024%Search for SEC Filing on Google Icon
8/15/2024The Manufacturers Life Insurance Company22,246$0.89M0.0%+4.5%0.045%Search for SEC Filing on Google Icon
8/15/2024Millennium Management LLC738,748$29.55M0.0%+84.6%1.511%Search for SEC Filing on Google Icon
8/15/2024Deerfield Management Company L.P. Series C6,623$0.27M0.0%N/A0.014%Search for SEC Filing on Google Icon
8/15/2024AQR Capital Management LLC55,796$2.23M0.0%-2.2%0.114%Search for SEC Filing on Google Icon
8/15/2024Point72 Asia Singapore Pte. Ltd.746$30K0.0%-83.4%0.002%Search for SEC Filing on Google Icon
8/14/2024Squarepoint Ops LLC90,552$3.62M0.0%+10.4%0.185%Search for SEC Filing on Google Icon
8/14/2024Point72 DIFC Ltd2,127$85K0.0%-79.8%0.004%Search for SEC Filing on Google Icon
8/14/2024Marshall Wace LLP227,127$9.09M0.0%N/A0.464%Search for SEC Filing on Google Icon
8/14/2024Public Sector Pension Investment Board83,887$3.36M0.0%+9.5%0.172%Search for SEC Filing on Google Icon
8/14/2024Epoch Investment Partners Inc.1,078,852$43.15M0.2%+35.1%2.206%Search for SEC Filing on Google Icon
8/14/2024ProShare Advisors LLC8,840$0.35M0.0%-19.4%0.018%Search for SEC Filing on Google Icon
8/13/2024Hancock Whitney Corp5,738$0.23M0.0%-6.0%0.012%Search for SEC Filing on Google Icon
8/13/2024Thrivent Financial for Lutherans31,665$1.27M0.0%-2.3%0.065%Search for SEC Filing on Google Icon
8/13/2024Sei Investments Co.26,543$1.06M0.0%-13.3%0.054%Search for SEC Filing on Google Icon
8/13/2024Granite Investment Partners LLC397,514$15.90M0.7%+12.7%0.813%Search for SEC Filing on Google Icon
8/13/2024Public Employees Retirement Association of Colorado5,265$0.21M0.0%-13.0%0.011%Search for SEC Filing on Google Icon
8/12/2024Intech Investment Management LLC10,658$0.43M0.0%N/A0.022%Search for SEC Filing on Google Icon
8/12/2024Hsbc Holdings PLC6,718$0.27M0.0%-9.6%0.014%Search for SEC Filing on Google Icon
8/10/2024Mutual of America Capital Management LLC93,729$3.75M0.0%-4.0%0.192%Search for SEC Filing on Google Icon
8/9/2024Renaissance Technologies LLC537,700$21.51M0.0%-10.2%1.100%Search for SEC Filing on Google Icon
8/9/2024Dimensional Fund Advisors LP1,070,275$42.81M0.0%-9.6%2.189%Search for SEC Filing on Google Icon
8/9/2024WINTON GROUP Ltd22,234$0.89M0.1%+8.0%0.045%Search for SEC Filing on Google Icon
8/8/2024Federated Hermes Inc.1,944,800$77.79M0.2%-6.4%3.977%Search for SEC Filing on Google Icon
8/8/2024American Century Companies Inc.740,408$29.62M0.0%+19.7%1.514%Search for SEC Filing on Google Icon
8/7/2024Texas Permanent School Fund Corp38,626$1.55M0.0%+18.1%0.079%Search for SEC Filing on Google Icon
8/6/2024Quest Partners LLC4,349$0.17M0.0%+434,800.0%0.009%Search for SEC Filing on Google Icon
8/6/2024LSV Asset Management80,400$3.22M0.0%-64.2%0.164%Search for SEC Filing on Google Icon
8/6/2024Gallacher Capital Management LLC6,971$0.28M0.1%N/A0.014%Search for SEC Filing on Google Icon
8/6/2024Advisor OS LLC26,012$1.04M0.1%-3.4%0.053%Search for SEC Filing on Google Icon
8/5/2024Arizona State Retirement System10,943$0.44M0.0%+3.9%0.022%Search for SEC Filing on Google Icon
8/5/2024Victory Capital Management Inc.197,001$7.88M0.0%-7.4%0.403%Search for SEC Filing on Google Icon
8/3/2024Chase Investment Counsel Corp20,000$0.87M0.3%N/A0.041%Search for SEC Filing on Google Icon
8/3/2024TD Asset Management Inc1,691,569$67.66M0.1%+67.4%3.459%Search for SEC Filing on Google Icon
8/2/2024Mesirow Institutional Investment Management Inc.353,447$14.14M1.2%+0.9%0.723%Search for SEC Filing on Google Icon
8/1/2024Rhumbline Advisers90,587$3.62M0.0%+1.6%0.185%Search for SEC Filing on Google Icon
8/1/2024Guidance Capital Inc.9,770$0.43M0.1%+16.1%0.020%Search for SEC Filing on Google Icon
7/31/2024nVerses Capital LLC2,200$88K0.1%+37.5%0.004%Search for SEC Filing on Google Icon
7/30/2024Maryland State Retirement & Pension System13,299$0.53M0.0%-2.1%0.027%Search for SEC Filing on Google Icon
7/29/2024Crossmark Global Holdings Inc.11,300$0.45M0.0%+2.5%0.023%Search for SEC Filing on Google Icon
7/29/2024Principal Financial Group Inc.218,172$8.73M0.0%-0.2%0.446%Search for SEC Filing on Google Icon
7/29/2024Innealta Capital LLC1,371$55K0.0%N/A0.003%Search for SEC Filing on Google Icon
7/29/2024Zurcher Kantonalbank Zurich Cantonalbank6,244$0.25M0.0%-29.6%0.013%Search for SEC Filing on Google Icon
7/29/2024Arkadios Wealth Advisors25,755$1.03M0.1%N/A0.053%Search for SEC Filing on Google Icon
7/26/2024Legato Capital Management LLC14,810$0.59M0.1%+41.0%0.030%Search for SEC Filing on Google Icon
7/26/2024Allspring Global Investments Holdings LLC40,946$1.64M0.0%-36.6%0.084%Search for SEC Filing on Google Icon
7/26/2024Shaker Investments LLC OH18,545$0.74M0.3%-62.3%0.038%Search for SEC Filing on Google Icon
7/26/2024Bank of New York Mellon Corp289,954$11.60M0.0%-1.5%0.593%Search for SEC Filing on Google Icon
7/26/2024AlphaCentric Advisors LLC25,000$1M0.7%N/A0.051%Search for SEC Filing on Google Icon
7/24/2024Louisiana State Employees Retirement System19,200$0.77M0.0%+3.8%0.039%Search for SEC Filing on Google Icon
7/23/20241620 Investment Advisors Inc.2,318$93K0.1%N/A0.005%Search for SEC Filing on Google Icon
7/19/2024Raymond James & Associates114,719$4.59M0.0%+16.9%0.235%Search for SEC Filing on Google Icon
7/19/2024Oakworth Capital Inc.5,023$0.20M0.0%N/A0.010%Search for SEC Filing on Google Icon
7/18/2024Blue Trust Inc.1,604$70K0.0%+23.9%0.003%Search for SEC Filing on Google Icon
7/18/2024Ellsworth Advisors LLC86,391$3.46M1.0%+6.4%0.177%Search for SEC Filing on Google Icon
7/18/2024Assenagon Asset Management S.A.189,605$7.58M0.0%+22.9%0.388%Search for SEC Filing on Google Icon
7/11/2024Mendota Financial Group LLC4,504$0.18M0.1%N/A0.009%Search for SEC Filing on Google Icon
7/11/2024Juncture Wealth Strategies LLC11,220$0.45M0.2%-2.9%0.023%Search for SEC Filing on Google Icon
7/2/2024First Hawaiian Bank5,519$0.22M0.0%-5.9%0.011%Search for SEC Filing on Google Icon
5/24/2024Invst LLC5,781$0.25M0.0%N/A0.012%Search for SEC Filing on Google Icon
5/20/2024EMC Capital Management3,113$0.14M0.1%N/A0.006%Search for SEC Filing on Google Icon
5/17/2024Comerica Bank15,591$0.69M0.0%-7.0%0.032%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Amphastar Pharmaceuticals logo
Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. It offers BAQSIMI, a nasal spray for the treatment of severe hypoglycemia; Primatene Mist, an over-the-counter epinephrine inhalation product for the temporary relief of mild symptoms of intermittent asthma; Enoxaparin, to prevent and treat deep vein thrombosis; REXTOVY and Naloxone for opioid overdose; Glucagon for injection emergency kit; and Cortrosyn, for use as a diagnostic agent in the screening of patients with adrenocortical insufficiency. The company provides Amphadase, an injection to absorb and disperse other injected drugs; Epinephrine injection for allergic reactions; Lidocaine jelly, an anesthetic product for urological procedures; Lidocaine topical solution for various procedures; Phytonadione injection, a vitamin K1 injection for newborn babies; emergency syringe products; morphine injection for use with patient-controlled analgesia pumps; and Lorazepam injection for surgery and medical procedures. In addition, it offers Neostigmine methylsulfate injection to treat myasthenia gravis and to reverse the effects of muscle relaxants; Isoproterenol hydrochloride injection for mild or transient episodes of heart block; Ganirelix Acetate injection for the inhibition of premature luteinizing hormone surges; Vasopressin to increase blood pressure; and Regadenoson, a stress agent for radionuclide myocardial perfusion imaging. Further, the company distributes recombinant human insulin APIs and porcine insulin API. Additionally, it develops generic product candidates, such as injectable, inhalation, and analytical technologies; biosimial product candidates; and intranasal epinephrine for the treatment of allergic reactions. The company was founded in 1996 and is headquartered in Rancho Cucamonga, California.
Read More on Amphastar Pharmaceuticals

Today's Range

Now: $51.56
Low: $50.33
High: $51.72

50 Day Range

MA: $48.40
Low: $44.36
High: $51.56

52 Week Range

Now: $51.56
Low: $36.56
High: $65.92

Volume

199,229 shs

Average Volume

390,885 shs

Market Capitalization

$2.51 billion

P/E Ratio

16.47

Dividend Yield

N/A

Beta

0.82

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

Amphastar Pharmaceuticals' top insider shareholders include:
  1. Mary Z Luo (COO)
  2. Howard Lee (Director)
  3. William J Peters (CFO)
  4. Rong Zhou (EVP)
  5. Floyd F Petersen (Director)
  6. Yakob Liawatidewi (EVP)
  7. Richard K Prins (Director)
  8. Michael A Zasloff (Director)
Learn More about top insider investors at Amphastar Pharmaceuticals.

Who are the major institutional investors of Amphastar Pharmaceuticals?

Amphastar Pharmaceuticals' top institutional shareholders include:
  1. Boston Trust Walden Corp — 1.10%
  2. Victory Capital Management Inc. — 0.45%
  3. Principal Financial Group Inc. — 0.41%
  4. Assenagon Asset Management S.A. — 0.34%
  5. Raymond James & Associates — 0.24%
  6. Moody Aldrich Partners LLC — 0.21%
Learn More about top institutional investors of Amphastar Pharmaceuticals stock.

Which institutional investors are selling Amphastar Pharmaceuticals stock?

During the previous quarter, AMPH stock was sold by these institutional investors:
  1. Assenagon Asset Management S.A.
  2. Allspring Global Investments Holdings LLC
  3. Principal Financial Group Inc.
  4. US Bancorp DE
  5. New York State Teachers Retirement System
  6. Louisiana State Employees Retirement System
  7. State of Alaska Department of Revenue
  8. Juncture Wealth Strategies LLC
In the last year, company insiders that have sold Amphastar Pharmaceuticals company stock include:
  1. Mary Z Luo (COO)
  2. Howard Lee (Director)
  3. William J Peters (CFO)
  4. Rong Zhou (EVP)
  5. Floyd F Petersen (Director)
  6. Yakob Liawatidewi (EVP)
Learn More investors selling Amphastar Pharmaceuticals stock.

Which institutional investors are buying Amphastar Pharmaceuticals stock?

During the last quarter, AMPH stock was bought by institutional investors including:
  1. Boston Trust Walden Corp
  2. Moody Aldrich Partners LLC
  3. SG Americas Securities LLC
  4. International Assets Investment Management LLC
  5. Victory Capital Management Inc.
  6. Los Angeles Capital Management LLC
  7. Chase Investment Counsel Corp
  8. GSA Capital Partners LLP