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CIK 0001297184 · Large accelerated filer

Amphastar Pharmaceuticals, Inc.

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Ticker
AMPH
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Entity type
operating
EIN
330702205
Phone
909-980-9484
Business address
11570 SIXTH STREET, RANCHO CUCAMONGA, CA, 91730
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$1,232,854
in 4 filings, $918K under 10b5-1 plans

Net −$1,232,854. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. PETERS WILLIAM J −$918K CFO, EVP & TREASURER sold 16% of stake
  2. Zhou Rong −$315K SENIOR EVP, PRODUCTION CENTER sold 7% of stake
Date Insider Transaction Shares Price Value Owned after
2016-04-14 Gerst Diane G. EVP, QA & Regulatory Affairs Shares withheld for taxes −741 $12.66 $9K 31,503
2016-03-27 Shandell Jason B. President Shares withheld for taxes −5,938 $11.96 $71K 227,588
2016-03-27 Zhang Jack Y. CEO & Chief Science Officer Shares withheld for taxes −25,856 $11.96 $309K 1,088,335
2016-03-27 Zhang Jack Y. CEO & Chief Science Officer Shares withheld for taxes −8,641 $11.96 $103K 752,321
2016-03-26 Zhou Rong EVP, Production Shares withheld for taxes −568 $11.96 $7K 37,137
2016-03-26 Gerst Diane G. EVP, QA & Regulatory Affairs Shares withheld for taxes −614 $11.96 $7K 32,244
2016-03-26 PETERS WILLIAM J CFO, SVP & Treasurer Shares withheld for taxes −1,823 $11.96 $22K 70,629
2016-03-26 Shandell Jason B. President Shares withheld for taxes −4,714 $11.96 $56K 233,526
2016-03-26 Zhang Jack Y. CEO & Chief Science Officer Shares withheld for taxes −15,711 $11.96 $188K 1,114,191
2016-03-26 Zhang Jack Y. CEO & Chief Science Officer Shares withheld for taxes −6,704 $11.96 $80K 760,962
2016-03-17 PRINS RICHARD K Director Sale −2,400 $11.25 $27K 26,200
2016-03-17 Gerst Diane G. EVP, QA & Regulatory Affairs Grant or award +11,253 32,858
2016-03-17 Gerst Diane G. EVP, QA & Regulatory Affairs Grant or award · Employee Stock Option (right to buy) +33,774 33,774
2016-03-17 Zhou Rong EVP, Production Grant or award +11,473 37,705
2016-03-17 Zhou Rong EVP, Production Grant or award · Employee Stock Option (right to buy) +34,438 34,438
2016-03-17 PETERS WILLIAM J CFO, SVP & Treasurer Grant or award +39,717 72,452
2016-03-17 PETERS WILLIAM J CFO, SVP & Treasurer Grant or award · Employee Stock Option (right to buy) +119,201 119,201
2016-03-17 Shandell Jason B. President Grant or award +75,022 238,240
2016-03-17 Shandell Jason B. President Grant or award · Employee Stock Option (right to buy) +225,153 225,153
2016-03-17 Zhang Jack Y. CEO & Chief Science Officer Grant or award +184,466 1,129,902

Page 70 of 81 · 1,602 trades