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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
2021-07-15 Liawatidewi Yakob EVP Corp Admin Center Option exercise · Employee Stock Option (right to buy) −7,674 36,176
2021-07-07 PETERS WILLIAM J CFO, EVP & Treasurer Option exercise +10,000 $11.33 $113K 122,278
2021-07-07 PETERS WILLIAM J CFO, EVP & Treasurer Sale −10,000 $20.37 $204K 112,278
2021-07-07 PETERS WILLIAM J CFO, EVP & Treasurer Option exercise · Employee Stock Option (right to buy) −10,000 29,800
2021-06-14 Liawatidewi Yakob EVP Corp Admin Center Shares withheld for taxes −128 $19.68 $3K 54,575
2021-06-12 Lee Howard Director Shares withheld for taxes −157 $19.92 $3K 138,776
2021-06-09 Zhou Rong EVP, Production Center Sale −4,732 $19.58 $93K 86,244
2021-06-08 Zhou Rong EVP, Production Center Option exercise +8,180 $14.23 $116K 99,156
2021-06-08 Zhou Rong EVP, Production Center Sale −8,180 $19.34 $158K 90,976
2021-06-08 Zhou Rong EVP, Production Center Option exercise · Employee Stock Option (right to buy) −8,180 0
2021-06-08 Lee Howard Director Option exercise +8,000 $16.43 $131K 146,933
2021-06-08 Lee Howard Director Sale −8,000 $19.31 $155K 138,933
2021-06-08 Lee Howard Director Returned to the company · Stock Option (right to buy) −8,000 0
2021-06-07 ZASLOFF MICHAEL A Director Grant or award +6,019 47,206
2021-06-07 ZASLOFF MICHAEL A Director Grant or award · Stock Option (right to buy) +17,182 17,182
2021-06-07 PRINS RICHARD K Director Option exercise +5,000 $16.43 $82K 44,160
2021-06-07 PRINS RICHARD K Director Sale −5,000 $18.70 $94K 39,160
2021-06-07 PRINS RICHARD K Director Grant or award +6,019 45,179
2021-06-07 PRINS RICHARD K Director Option exercise · Stock Option (right to buy) −5,000 0
2021-06-07 PRINS RICHARD K Director Grant or award · Stock Option (right to buy) +17,182 17,182

Page 31 of 81 · 1,602 trades