Amphastar Pharmaceuticals
Insider trading & Transactions

Last updated:

Transaction Date Insider Security Shares Price per share Total value Source
Sale
ZASLOFF MICHAEL A director
 Common Stock 10,000 $33.71 $337,070
Option
ZASLOFF MICHAEL A director
 Stock Option (right to buy) 10,000 $17.11 $171,100
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 7,900 $34.46 $272,250
Option
PRINS RICHARD K director
 Common Stock 10,000 $17.11 $171,100
Sale
PRINS RICHARD K director
 Common Stock 10,000 $34.02 $340,210
Option
PRINS RICHARD K director
 Stock Option (right to buy) 10,000 $17.11 $171,100
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Employee Stock Option (right to buy) 13,026 $13.35 $173,897
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 13,026 $29.35 $382,313
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 13,026 $13.35 $173,897
Sale
PETERSEN FLOYD F. director
 Common Stock 500 $27.27 $13,635
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 11,000 $27.95 $307,450
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Employee Stock Option (right to buy) 23,000 $14.95 $343,850
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 7,000 $10.93 $76,510
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 23,000 $14.95 $343,850
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 12,000 $28.95 $347,400
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 13,246 $28.77 $381,087
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 7,000 $10.93 $76,510
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Employee Stock Option (right to buy) 10,000 $14.95 $149,500
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 7,000 $10.93 $76,510
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 10,000 $26.95 $269,500
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 10,000 $14.95 $149,500
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 7,000 $10.93 $76,510
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 7,000 $26.77 $187,390
Sale
PETERSEN FLOYD F. director
 Common Stock 89 $23.37 $2,080
Sale
PETERSEN FLOYD F. director
 Common Stock 411 $24.24 $9,961
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Employee Stock Option (right to buy) 47,776 $14.4 $687,974
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 16,000 $25.4 $406,400
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 20,928 $25.37 $530,860
Option
ZHOU RONG officer: EVP, Production Center
 Employee Stock Option (right to buy) 14,000 $10.93 $153,020
Option
ZHOU RONG officer: EVP, Production Center
 Common Stock 14,000 $10.93 $153,020
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 16,000 $14.4 $230,400
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 31,776 $24.53 $779,306
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 31,776 $14.4 $457,574
Sale
PETERSEN FLOYD F. director
 Common Stock 500 $23.22 $11,609
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 10,000 $23.4 $234,000
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 10,000 $14.4 $144,000
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Employee Stock Option (right to buy) 10,000 $14.4 $144,000
Sale
PETERSEN FLOYD F. director
 Common Stock 1,000 $22.5 $22,503
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 8,256 $22.4 $184,934
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 8,256 $14.4 $118,886
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Employee Stock Option (right to buy) 8,256 $14.4 $118,886
Sale
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 1,744 $22.4 $39,066
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Employee Stock Option (right to buy) 1,744 $14.4 $25,114
Option
PETERS WILLIAM J officer: CFO, EVP & Treasurer
 Common Stock 1,744 $14.4 $25,114
Sale
PRINS RICHARD K director
 Common Stock 5,291 $21.36 $113,005
Option
PRINS RICHARD K director
 Common Stock 5,291 $17.11 $90,529
Option
PRINS RICHARD K director
 Stock Option (right to buy) 5,291 $17.11 $90,529
Option
PRINS RICHARD K director
 Stock Option (right to buy) 5,000 $17.11 $85,550
Option
PRINS RICHARD K director
 Common Stock 5,000 $17.11 $85,550
Sale
PRINS RICHARD K director
 Common Stock 5,000 $21.22 $106,100

Showing 250 to 300 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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