Amphastar Pharmaceuticals
Insider trading & Transactions

Last updated:

Transaction Date Insider Security Shares Price per share Total value Source
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 25,250 $13.03 $329,008
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Employee Stock Option (right to buy) 25,250 $13.03 $329,008
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Employee Stock Option (right to buy) 21,250 $20.23 $429,888
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Employee Stock Option (right to buy) 10,000 $19.79 $197,900
Option
LIAWATIDEWI YAKOB director, officer: EVP Corp Adm..
 Common Stock 20,000 $13.03 $260,600
Option
LIAWATIDEWI YAKOB director, officer: EVP Corp Adm..
 Common Stock 5,497 $20.23 $111,204
Option
LIAWATIDEWI YAKOB director, officer: EVP Corp Adm..
 Common Stock 3,319 $16.96 $56,290
Sale
LIAWATIDEWI YAKOB director, officer: EVP Corp Adm..
 Common Stock 28,816 $53.13 $1,530,994
Option
LIAWATIDEWI YAKOB director, officer: EVP Corp Adm..
 Employee Stock Option (right to buy) 20,000 $13.03 $260,600
Option
LIAWATIDEWI YAKOB director, officer: EVP Corp Adm..
 Employee Stock Option (right to buy) 8,816 $18.6 $163,934
Sale
PRINS RICHARD K director
 Common Stock 2,000 $52.5 $105,006
Sale
PRINS RICHARD K director
 Common Stock 4,163 $57.39 $238,910
Sale
ZASLOFF MICHAEL A director
 Common Stock 12,759 $57.22 $730,032
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 9,651 $11.33 $109,346
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 9,651 $11.33 $109,346
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 1,171 $16.19 $18,958
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 13,575 $14.4 $195,480
Sale
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 11,868 $48.79 $579,040
Sale
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 12,000 $50.79 $609,480
Sale
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 13,000 $52.79 $686,270
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Employee Stock Option (right to buy) 36,868 $19.79 $729,618
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 13,575 $14.4 $195,480
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 5,000 $51.79 $258,945
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 4,631 $14.95 $69,233
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 4,631 $14.95 $69,233
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 1,171 $16.19 $18,958
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 36,868 $19.79 $729,618
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 5,000 $14.4 $72,000
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 5,000 $48.24 $241,200
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 5,000 $14.4 $72,000
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 11,000 $13.35 $146,850
Sale
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 11,000 $46.35 $509,861
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Employee Stock Option (right to buy) 11,000 $13.35 $146,850
Option
LEE HOWARD director
 Common Stock 16,679 $16.69 $278,373
Sale
LEE HOWARD director
 Common Stock 16,679 $45.02 $750,955
Option
LEE HOWARD director
 Stock Option (right to buy) 16,679 $16.69 $278,373
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 10,000 $14.4 $144,000
Sale
DEFLIN GAYLE director
 Common Stock 4,519 $44.01 $198,890
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 10,000 $44.21 $442,050
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 10,000 $14.4 $144,000
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 10,500 $13.35 $140,175
Sale
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Common Stock 10,500 $44.35 $465,675
Option
PETERS WILLIAM J director, officer: CFO, EVP & T..
 Employee Stock Option (right to buy) 10,500 $13.35 $140,175
Sale
PETERSEN FLOYD F. director
 Common Stock 5,000 $43.13 $215,655
Sale
ZASLOFF MICHAEL A director
 Common Stock 7,500 $42.18 $316,335
Option
PRINS RICHARD K director
 Common Stock 5,000 $16.69 $83,450
Sale
PRINS RICHARD K director
 Common Stock 5,000 $43.5 $217,500
Sale
DEFLIN GAYLE director
 Common Stock 1,500 $43.15 $64,728
Option
PRINS RICHARD K director
 Stock option (right to buy) 5,000 $16.69 $83,450
Option
PRINS RICHARD K director
 Common Stock 5,000 $16.69 $83,450

Showing 100 to 150 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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