Amphastar Pharmaceuticals
Insider trading & Transactions

Last updated:

Transaction Date Insider Security Shares Price per share Total value Source
Option
GERST DIANE G. director
 Employee Stock Option (right to buy) 14,210 $10.95 $155,528
Sale
GERST DIANE G. director
 Common Stock 15,637 $12.83 $200,654
Option
GERST DIANE G. director
 Common Stock 14,210 $10.95 $155,528
Sale
PRINS RICHARD K director
 Common Stock 2,400 $11.25 $27,000
Sale
SHOHET STEPHEN B. director
 Common Stock 15,191 $14.2 $215,636
Option
SHOHET STEPHEN B. director
 Common Stock 15,191 $14.2 $215,636
Sale
ZASLOFF MICHAEL A director
 Common Stock 14,232 $14.2 $202,109
Option
SHOHET STEPHEN B. director
 Stock Option (right to buy) 15,191 $14.2 $215,636
Option
ZASLOFF MICHAEL A director
 Common Stock 14,232 $14.2 $202,109
Option
ZASLOFF MICHAEL A director
 Stock Option (right to buy) 14,232 $14.2 $202,109
Option
SHOHET STEPHEN B. director
 Common Stock 15,579 $11.68 $181,963
Option
ZASLOFF MICHAEL A director
 Stock Option (right to buy) 16,538 $11.68 $193,164
Sale
LEE HOWARD director
 Common Stock 1,926 $14.33 $27,600
Option
ZASLOFF MICHAEL A director
 Common Stock 16,538 $11.68 $193,164
Sale
ZASLOFF MICHAEL A director
 Common Stock 16,538 $11.68 $193,164
Option
LEE HOWARD director
 Common Stock 1,926 $14.33 $27,600
Option
SHOHET STEPHEN B. director
 Stock Option (right to buy) 15,579 $11.68 $181,963
Sale
SHOHET STEPHEN B. director
 Common Stock 15,579 $11.68 $181,963
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 772 $14.29 $11,032
Option
LEE HOWARD director
 Stock Option (right to buy) 1,926 $14.33 $27,600
Option
LEE HOWARD director
 Stock Option (right to buy) 36,536 $11.68 $426,740
Option
LEE HOWARD director
 Common Stock 36,536 $11.68 $426,740
Sale
LEE HOWARD director
 Common Stock 36,536 $11.68 $426,740
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 15,066 $14.05 $211,738
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 15,066 $14.05 $211,738
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 21,915 $14.32 $313,889
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 21,915 $14.32 $313,889
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 26,319 $14.29 $376,125
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 26,319 $14.29 $376,125
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 24,359 $14.5 $353,108
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 24,359 $14.5 $353,108
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 15,046 $14.59 $219,491
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 15,046 $14.59 $219,491
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 28,712 $14.95 $429,302
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 28,712 $14.95 $429,302
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 18,583 $15.42 $286,457
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 18,583 $15.42 $286,457
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 20,000 $15.49 $309,780
Sale
APPLIED PHYSICS & CHEMISTRY LABORATORIES, INC. 10 percent owner
 Common Stock 20,000 $15.49 $309,780
Option
PETERSEN FLOYD F. director
 Stock Option (right to buy) 38,462 $11.68 $449,236
Option
PETERSEN FLOYD F. director
 Common Stock 38,462 $11.68 $449,236
Sale
PETERSEN FLOYD F. director
 Common Stock 31,529 $14.29 $450,518
Sale
PRINS RICHARD K director
 Common Stock 3,772 $13.95 $52,608
Sale
PRINS RICHARD K director
 Common Stock 9,100 $14.66 $133,397
Option
PRINS RICHARD K director
 Stock Option (right to buy) 2,100 $10.77 $22,617
Option
PRINS RICHARD K director
 Common Stock 2,100 $10.77 $22,617
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 16,962 $12.97 $219,997
Option
PRINS RICHARD K director
 Common Stock 5,400 $10.77 $58,158
Sale
PRINS RICHARD K director
 Common Stock 5,400 $10.77 $58,158
Option
PRINS RICHARD K director
 Stock Option (right to buy) 5,400 $10.77 $58,158

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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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