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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
2020-06-08 Lee Howard Director Grant or award +5,851 133,269
2020-06-08 Lee Howard Director Grant or award · Stock Option (right to buy) +16,004 16,004
2020-06-08 Koo Richard Director Grant or award +5,851 253,270
2020-06-08 Koo Richard Director Grant or award · Stock Option (right to buy) +16,004 16,004
2020-06-08 Gerst Diane G. Director Grant or award +2,925 5,670
2020-06-08 Gerst Diane G. Director Grant or award · Stock Option (right to buy) +8,003 8,003
2020-06-07 Lee Howard Director Shares withheld for taxes −663 $19.52 $13K 127,418
2020-06-04 Liawatidewi Yakob SVP Corp Admin Center Grant or award +3,048 53,529
2020-06-04 Liawatidewi Yakob SVP Corp Admin Center Grant or award · Employee Stock Option (right to buy) +7,091 7,091
2020-06-04 Zhou Rong EVP, Production Center Option exercise +8,918 $11.41 $102K 89,042
2020-06-04 Zhou Rong EVP, Production Center Sale −9,806 $19.19 $188K 79,236
2020-06-04 Zhou Rong EVP, Production Center Option exercise · Employee Stock Option (right to buy) −8,918 0
2020-06-03 Zhou Rong EVP, Production Center Option exercise +11,082 $11.41 $126K 93,287
2020-06-03 Zhou Rong EVP, Production Center Sale −13,163 $18.82 $248K 80,124
2020-06-03 Zhou Rong EVP, Production Center Option exercise · Employee Stock Option (right to buy) −11,082 8,918
2020-06-01 Petersen Floyd F. Director Sale −500 $18.97 $9K 71,142
2020-05-27 Koo Richard Director Option exercise +47,782 $15.11 $722K 295,201
2020-05-27 Koo Richard Director Sale −47,782 $18.18 $869K 247,419
2020-05-27 Koo Richard Director Option exercise · Stock Option (right to buy) −47,782 0
2020-05-26 Lee Howard Director Option exercise +10,000 $15.11 $151K 138,081

Page 38 of 81 · 1,602 trades