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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.

Date Insider Transaction Shares Price Value Owned after
2021-06-04 PRINS RICHARD K Director Option exercise · Stock Option (right to buy) −5,000 5,000
2021-06-04 Liawatidewi Yakob EVP Corp Admin Center Shares withheld for taxes −264 $18.79 $5K 54,703
2021-06-03 Petersen Floyd F. Director Option exercise +10,000 $16.43 $164K 83,354
2021-06-03 Petersen Floyd F. Director Sale −10,000 $18.65 $187K 73,354
2021-06-03 Petersen Floyd F. Director Option exercise · Stock option (right to buy) −10,000 15,827
2021-06-01 Koo Richard Director Option exercise +25,827 $16.43 $424K 279,097
2021-06-01 Koo Richard Director Sale −25,827 $19.28 $498K 253,270
2021-06-01 Koo Richard Director Option exercise · Stock Option (right to buy) −25,827 0
2021-05-20 Lee Howard Director Option exercise +10,000 $16.43 $164K 142,914
2021-05-20 Lee Howard Director Sale −10,000 $19.74 $197K 132,914
2021-05-20 Lee Howard Director Option exercise · Stock Option (right to buy) −10,000 15,827
2021-05-19 PETERS WILLIAM J CFO, EVP & Treasurer Grant or award +3,047 111,349
2021-05-19 PETERS WILLIAM J CFO, EVP & Treasurer Grant or award · Employee Stock Option (right to buy) +7,209 7,209
2021-05-17 Liawatidewi Yakob SVP Corp Admin Center Option exercise +9,637 $11.33 $109K 63,210
2021-05-17 Liawatidewi Yakob SVP Corp Admin Center Sale −9,637 $19.99 $193K 53,573
2021-05-17 Liawatidewi Yakob SVP Corp Admin Center Option exercise · Empoyee Stock Option (right to buy) −9,637 0
2021-05-14 Liawatidewi Yakob SVP Corp Admin Center Sale −3,186 $19.92 $63K 53,573
2021-05-14 Zhou Rong EVP, Production Center Option exercise +11,120 $14.23 $158K 107,385
2021-05-14 Zhou Rong EVP, Production Center Sale −17,419 $19.72 $343K 89,966
2021-05-14 Zhou Rong EVP, Production Center Option exercise · Employee Stock Option (right to buy) −11,120 8,180

Page 33 of 81 · 1,602 trades