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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
2019-12-18 Shandell Jason B. President and General Counsel Sale −8,205 $19.13 $157K 138,898
2019-12-02 Petersen Floyd F. Director Sale −500 $19.25 $10K 74,642
2019-11-01 Petersen Floyd F. Director Sale −500 $19.48 $10K 75,142
2019-10-01 Petersen Floyd F. Director Sale −500 $19.92 $10K 75,642
2019-09-18 Shandell Jason B. President and General Counsel Sale −7,340 $21.32 $157K 147,103
2019-09-16 PETERS WILLIAM J CFO, SVP & Treasurer Option exercise +9,800 $11.33 $111K 92,253
2019-09-16 PETERS WILLIAM J CFO, SVP & Treasurer Sale −9,800 $21.76 $213K 82,453
2019-09-16 PETERS WILLIAM J CFO, SVP & Treasurer Option exercise · Employee Stock Option (right to buy) −9,800 49,800
2019-09-16 Petersen Floyd F. Director Sale −500 $21.75 $11K 76,142
2019-09-13 Liawatidewi Yakob SVP Corp Admin Center Sale −3,000 $21.45 $64K 33,670
2019-09-11 Zhang Jack Y. CEO & Chief Scientific Officer Sale −300,000 $20.82 $6.2M 7,027,679
2019-09-06 Liawatidewi Yakob SVP Corp Admin Center Sale −2,395 $21.90 $52K 2,459
2019-09-05 Liawatidewi Yakob SVP Corp Admin Center Sale −1,515 $21.24 $32K 4,854
2019-08-26 PRINS RICHARD K Director Option exercise +3,618 $15.11 $55K 42,927
2019-08-26 PRINS RICHARD K Director Sale −3,618 $22.60 $82K 39,309
2019-08-26 PRINS RICHARD K Director Option exercise · Common Stock −3,618 30,282
2019-08-23 PRINS RICHARD K Director Option exercise +3,882 $15.11 $59K 43,191
2019-08-23 PRINS RICHARD K Director Sale −3,882 $22.58 $88K 39,309
2019-08-23 PRINS RICHARD K Director Option exercise · Common Stock −3,882 33,900
2019-08-15 PETERS WILLIAM J CFO, SVP & Treasurer Sale −4,942 $21.00 $104K 82,453

Page 43 of 81 · 1,602 trades