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NASDAQ: AMPH
Amphastar Pharmaceuticals Inc Stock Ownership - Who owns Amphastar Pharmaceuticals?

OverviewForecastEarningsDividendOwnership

Insider buying vs selling

Have Amphastar Pharmaceuticals Inc insiders been buying or selling?
Buy
Sell
NameRoleDateSharesPriceValue
Floyd F. PetersenDirector2024-04-01500$43.43
$21.71kSell
Jack Y. ZhangCEO Chief Scientific Officer2024-03-177,052$43.05
$303.59kSell
Rong ZhouSENIOR EVP PRODUCTION CENTER2024-03-171,961$43.05
$84.42kSell
William J. PetersCFO EVP TREASURER2024-03-174,255$43.05
$183.18kSell
Yakob LiawatidewiEVP CORP ADMIN CENTER2024-03-171,726$43.05
$74.30kSell
Jack Y. ZhangCEO Chief Scientific Officer2024-03-1715,768$43.05
$678.81kSell
Yakob LiawatidewiEVP CORP ADMIN CENTER2024-03-161,671$43.05
$71.94kSell
Rong ZhouSENIOR EVP PRODUCTION CENTER2024-03-162,355$43.05
$101.38kSell
William J. PetersCFO EVP TREASURER2024-03-165,105$43.05
$219.77kSell
Jack Y. ZhangCEO Chief Scientific Officer2024-03-15310,930$12.46
$3.87MBuy

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Net Insider Buy/Sell (L12M) Ownership

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AMPH Shareholders

What type of owners hold Amphastar Pharmaceuticals Inc stock?
Institutional
Insider
Retail
NameHoldSharesValueType
Jack Y. Zhang35.55%17,097,827$684.08MInsider
Mary Z. Luo18.59%8,941,010$357.73MInsider
Applied Physics Chemistry Laboratories Inc15.24%7,327,679$293.18MInsider
Blackrock Inc12.55%6,037,158$241.55MInstitution
Federated Hermes Inc6.80%3,272,761$130.94MInstitution
Vanguard Group Inc5.85%2,815,596$112.65MInstitution
Neuberger Berman Group LLC3.52%1,693,002$67.74MInstitution
State Street Corp3.06%1,471,137$58.86MInstitution
Dimensional Fund Advisors LP2.78%1,339,142$53.58MInstitution
Fuller Thaler Asset Management Inc2.65%1,273,017$50.93MInstitution

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AMPH vs Pharmaceutical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMPH49.07%50.93%Net SellingNet Buying
AMRX25.23%74.77%Net SellingNet Selling
SUPN45.35%54.65%Net SellingNet Selling
TARO12.90%50.73%
AVDL61.94%14.34%Net Selling
View Top Pharmaceutical Stocks

Amphastar Pharmaceuticals Stock Ownership FAQ

Who owns Amphastar Pharmaceuticals?

Amphastar Pharmaceuticals (NASDAQ: AMPH) is owned by 69.23% institutional shareholders, 71.84% Amphastar Pharmaceuticals insiders, and 0.00% retail investors. Jack Y. Zhang is the largest individual Amphastar Pharmaceuticals shareholder, owning 17.10M shares representing 35.55% of the company. Jack Y. Zhang's Amphastar Pharmaceuticals shares are currently valued at $686.82M.

If you're new to stock investing, here's how to buy Amphastar Pharmaceuticals stock.
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