Amphastar Pharmaceuticals
Insider trading & Transactions

Last updated:

Transaction Date Insider Security Shares Price per share Total value Source
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 55,081 $16.75 $922,772
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 55,081 $16.75 $922,772
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 389,118 $16.75 $6,518,894
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 389,118 $21.03 $8,183,541
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 389,118 $16.75 $6,518,894
Sale
PETERSEN FLOYD F. director
 Common Stock 3,000 $19.05 $57,150
Option
LEE HOWARD director
 Stock Option (right to buy) 10,381 $15.23 $158,103
Sale
LEE HOWARD director
 Common Stock 10,381 $15.23 $158,103
Option
LEE HOWARD director
 Common Stock 10,381 $15.23 $158,103
Sale
SHANDELL JASON B. director, officer: President an..
 Common Stock 10,000 $10.46 $104,600
Option
SHANDELL JASON B. director, officer: President an..
 Common Stock 10,000 $10.46 $104,600
Option
SHANDELL JASON B. director, officer: President an..
 Employee Stock Option (right to buy) 10,000 $10.46 $104,600
Sale
GERST DIANE G. director
 Common Stock 24,046 $19.28 $463,607
Option
GERST DIANE G. director
 Employee Stock Option (right to buy) 24,046 $12.58 $302,499
Option
GERST DIANE G. director
 Common Stock 24,046 $12.58 $302,499
Sale
PRINS RICHARD K director
 Common Stock 3,086 $19.62 $60,538
Sale
SHANDELL JASON B. director, officer: President an..
 Common Stock 5,987 $18.86 $112,909
Option
SHOHET STEPHEN B. director
 Common Stock 10,670 $18.35 $195,784
Sale
SHOHET STEPHEN B. director
 Common Stock 10,670 $18.35 $195,784
Option
SHOHET STEPHEN B. director
 Stock Option (right to buy) 10,670 $18.35 $195,784
Option
ZASLOFF MICHAEL A director
 Stock Option (right to buy) 17,400 $18.22 $316,976
Sale
SHOHET STEPHEN B. director
 Common Stock 22,917 $18.26 $418,487
Sale
ZASLOFF MICHAEL A director
 Common Stock 17,400 $18.22 $316,976
Option
ZASLOFF MICHAEL A director
 Common Stock 17,400 $18.22 $316,976
Option
SHOHET STEPHEN B. director
 Stock Option (right to buy) 22,917 $18.26 $418,487
Option
SHOHET STEPHEN B. director
 Common Stock 22,917 $18.26 $418,487
Option
SHOHET STEPHEN B. director
 Stock Option (right to buy) 14,788 $14.73 $217,827
Sale
ZASLOFF MICHAEL A director
 Common Stock 30,975 $18.12 $561,143
Option
ZASLOFF MICHAEL A director
 Common Stock 30,975 $14.73 $456,262
Sale
SHOHET STEPHEN B. director
 Common Stock 14,788 $18.12 $268,018
Sale
PETERS WILLIAM J officer: CFO, SVP & Treasurer
 Common Stock 1,027 $18.19 $18,681
Option
ZASLOFF MICHAEL A director
 Stock Option (right to buy) 30,975 $14.73 $456,262
Option
SHOHET STEPHEN B. director
 Common Stock 14,788 $14.73 $217,827
Option
PRINS RICHARD K director
 Stock Option (right to buy) 10,095 $6.68 $67,465
Sale
SHANDELL JASON B. director, officer: President an..
 Common Stock 5,636 $18.01 $101,482
Option
PRINS RICHARD K director
 Common Stock 13,993 $9.2 $128,708
Sale
PRINS RICHARD K director
 Common Stock 13,993 $18.03 $252,280
Sale
PETERS WILLIAM J officer: CFO, SVP & Treasurer
 Common Stock 2,297 $17.76 $40,795
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 1,551 $15.85 $24,583
Option
PRINS RICHARD K director
 Common Stock 7,500 $15.94 $119,535
Sale
PRINS RICHARD K director
 Common Stock 7,500 $15.94 $119,535
Option
PRINS RICHARD K director
 Stock Option (right to buy) 7,500 $15.94 $119,535
Sale
SHANDELL JASON B. director, officer: President an..
 Common Stock 9,904 $16.43 $162,723
Sale
PETERS WILLIAM J officer: CFO, SVP & Treasurer
 Common Stock 2,297 $16 $36,752
Sale
SHANDELL JASON B. director, officer: President an..
 Common Stock 1,074 $15.6 $16,754
Sale
GERST DIANE G. director
 Common Stock 1,427 $13.97 $19,939
Sale
PRINS RICHARD K director
 Common Stock 3,200 $13.56 $43,392
Option
GERST DIANE G. director
 Employee Stock Option (right to buy) 5,607 $13.04 $73,126
Sale
GERST DIANE G. director
 Common Stock 5,607 $13.04 $73,126
Option
GERST DIANE G. director
 Common Stock 5,607 $13.04 $73,126

Showing 750 to 800 of 904 results.

Insider trading

Monitoring trades made by the management members or major shareholders of companies may help create a sharper picture of what is happening inside the companies. Base your decisions on buys or sells of the people involved and do the right thing at the right time.

Who is insider?

Every director or senior officer, as well as any other entity or individual owning more than 10% of the company’s shares on the stock market, is called an insider. Such people or entities are allowed to buy/sell the company's shares under strictly controlled conditions. Key premise here is that none of them can make trades based on non-public information about the company.

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