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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
2015-05-27 Shohet Stephen B. Director Grant or award +8,686 12,186
2015-05-27 Shohet Stephen B. Director Grant or award · Stock Option (right to buy) +47,782 47,782
2015-05-27 PRINS RICHARD K Director Grant or award +8,686 42,722
2015-05-27 PRINS RICHARD K Director Grant or award · Stock Option (right to buy) +47,782 47,782
2015-05-27 Petersen Floyd F. Director Grant or award +8,686 50,298
2015-05-27 Petersen Floyd F. Director Grant or award · Stock Option (right to buy) +47,782 47,782
2015-05-27 Lee Howard Director Grant or award +8,686 109,901
2015-05-27 Lee Howard Director Grant or award · Stock Option (right to buy) +47,782 47,782
2015-05-27 Koo Richard Director Grant or award +8,686 223,408
2015-05-27 Koo Richard Director Grant or award · Stock Option (right to buy) +47,782 47,782
2015-05-22 PRINS RICHARD K Director Option exercise +1,942 $10.77 $21K 37,993
2015-05-22 PRINS RICHARD K Director Sale −1,942 $14.76 $29K 36,051
2015-05-22 PRINS RICHARD K Director Option exercise · Stock Option (right to buy) −1,942 47,500
2015-05-21 PRINS RICHARD K Director Option exercise +11,901 $11.68 $139K 47,952
2015-05-21 PRINS RICHARD K Director Option exercise −1,664 $10.77 $18K 49,616
2015-05-21 PRINS RICHARD K Director Sale −13,565 $14.76 $200K 36,051
2015-05-21 PRINS RICHARD K Director Option exercise · Stock Option (right to buy) −11,901 0
2015-05-21 PRINS RICHARD K Director Option exercise · Stock Option (right to buy) −1,664 49,442
2015-05-20 PRINS RICHARD K Director Option exercise +13,945 $11.68 $163K 49,996
2015-05-20 PRINS RICHARD K Director Sale −13,945 $14.79 $206K 36,051

Page 78 of 81 · 1,602 trades