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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
2018-06-07 PRINS RICHARD K Director Grant or award +6,590 35,434
2018-06-07 PRINS RICHARD K Director Grant or award · Stock Option (right to buy) +16,679 16,679
2018-06-07 Petersen Floyd F. Director Grant or award +6,590 71,151
2018-06-07 Petersen Floyd F. Director Grant or award · Stock Option (right to buy) +16,679 16,679
2018-06-07 Lee Howard Director Grant or award +6,590 125,135
2018-06-07 Lee Howard Director Grant or award · Stock Option (right to buy) +16,679 16,679
2018-06-07 Koo Richard Director Grant or award +6,590 241,928
2018-06-07 Koo Richard Director Grant or award · Stock Option (right to buy) +16,679 16,679
2018-05-16 Zhang Jack Y. CEO & Chief Scientific Officer Purchase +15,000 $16.06 $241K 2,080,619
2018-05-15 Zhang Jack Y. CEO & Chief Scientific Officer Purchase +25,000 $16.08 $402K 2,065,619
2018-04-21 PETERS WILLIAM J CFO, SVP & Treasurer Shares withheld for taxes −1,273 $19.31 $25K 91,374
2018-03-27 Shandell Jason B. President and General Counsel Shares withheld for taxes −7,833 $18.47 $145K 212,561
2018-03-26 Zhou Rong EVP, Production Center Shares withheld for taxes −535 $18.61 $10K 54,434
2018-03-26 PETERS WILLIAM J CFO, SVP & Treasurer Shares withheld for taxes −1,677 $18.61 $31K 92,647
2018-03-26 Shandell Jason B. President and General Counsel Shares withheld for taxes −4,492 $18.61 $84K 220,394
2018-03-26 Zhang Jack Y. CEO & Chief Scientific Officer Shares withheld for taxes −20,728 $18.61 $386K 2,040,619
2018-03-26 Zhang Jack Y. CEO & Chief Scientific Officer Shares withheld for taxes −8,844 $18.61 $165K 1,346,129
2018-03-20 Shandell Jason B. President and General Counsel Sale −8,293 $19.52 $162K 224,886
2018-03-19 Shandell Jason B. President and General Counsel Sale −11,707 $19.37 $227K 233,179
2018-03-17 Zhou Rong EVP, Production Center Shares withheld for taxes −969 $19.91 $19K 54,969

Page 55 of 81 · 1,602 trades