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..
 Employee Stock Option (right to buy) 8,481 $12.97 $109,999
Sale
SHOHET STEPHEN B. director
 Common Stock 7,692 $11.68 $89,843
Option
SHOHET STEPHEN B. director
 Common Stock 7,692 $11.68 $89,843
Sale
ZASLOFF MICHAEL A director
 Common Stock 7,692 $11.68 $89,843
Option
ZASLOFF MICHAEL A director
 Stock Option (right to buy) 7,692 $11.68 $89,843
Option
SHOHET STEPHEN B. director
 Stock Option (right to buy) 7,692 $11.68 $89,843
Option
ZASLOFF MICHAEL A director
 Common Stock 7,692 $11.68 $89,843
Sale
ZHOU RONG officer: EVP, Production Center
 Common Stock 1,000 $16.48 $16,480
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 50,061 $12.97 $649,291
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 50,061 $12.97 $649,291
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 45,382 $16.29 $739,454
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 228,178 $16.16 $3,686,900
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 250,952 $12.97 $3,254,847
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 125,476 $12.97 $1,627,424
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 51,580 $12.97 $668,993
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 25,790 $12.97 $334,496
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 46,528 $16.47 $766,270
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 25,594 $12.97 $331,954
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 46,284 $16.38 $757,947
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 51,188 $12.97 $663,908
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 56,757 $12.97 $736,138
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 56,757 $12.97 $736,138
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 51,500 $16.18 $833,218
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 60,218 $12.97 $781,027
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 60,218 $12.97 $781,027
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 54,120 $16.61 $898,987
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Employee Stock Option (right to buy) 99,142 $12.97 $1,285,872
Sale
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 88,138 $16.47 $1,451,192
Option
ZHANG JACK Y. director, 10 percent owner, off..
 Common Stock 99,142 $12.97 $1,285,872
Option
PRINS RICHARD K director
 Common Stock 1,942 $14.76 $28,654
Sale
PRINS RICHARD K director
 Common Stock 1,942 $14.76 $28,654
Option
PRINS RICHARD K director
 Stock Option (right to buy) 1,942 $14.76 $28,654
Option
PRINS RICHARD K director
 Common Stock 11,901 $11.68 $139,004
Option
PRINS RICHARD K director
 Common Stock 13,565 $11.23 $152,267
Option
PRINS RICHARD K director
 Stock Option (right to buy) 13,565 $11.23 $152,267
Sale
PRINS RICHARD K director
 Common Stock 13,565 $14.76 $200,179
Option
PRINS RICHARD K director
 Stock Option (right to buy) 13,945 $11.68 $162,878
Option
PRINS RICHARD K director
 Common Stock 13,945 $11.68 $162,878
Sale
PRINS RICHARD K director
 Common Stock 13,945 $11.68 $162,878
Option
PRINS RICHARD K director
 Common Stock 3,000 $11.68 $35,040
Option
PRINS RICHARD K director
 Stock Option (right to buy) 3,000 $11.68 $35,040
Sale
PRINS RICHARD K director
 Common Stock 3,000 $11.68 $35,040
Sale
PURCHASE MARILYN J. officer: Corp. Exec. VP of Oper..
 Common Stock 28,000 $14.8 $414,400
Option
PURCHASE MARILYN J. officer: Corp. Exec. VP of Oper..
 Employee Stock Option (right to buy) 28,000 $14.8 $414,400
Option
PURCHASE MARILYN J. officer: Corp. Exec. VP of Oper..
 Common Stock 28,000 $14.8 $414,400
Sale
GERST DIANE G. director
 Common Stock 10,000 $14.8 $148,000
Option
GERST DIANE G. director
 Common Stock 10,000 $14.8 $148,000
Purchase
LEE HOWARD director
 Common Stock 6,000 $10.84 $65,022
Purchase
ZASLOFF MICHAEL A director
 Common Stock 3,500 $10 $35,000
Purchase
PRINS RICHARD K director
 Common Stock 2,600 $10.03 $26,078

Showing 850 to 900 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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