Stocks · Health care · Pharmaceutical Preparations

Amphastar Pharmaceuticals, Inc.

AMPH Clue Score63
United States Fiscal year ends December CIK 0001297184 Results filed 5 Nov 2026

What the insiders did Net selling

Insider
Date
Role
Action
Shares
Price
Amount
David Maris
14 Aug 2020
Director
Buy
1,000
$20.26
$20.26K
Showing 250 of 408 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 482
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 49
Sales on a Rule 10b5-1 plan 40
Sales straight out of an exercise 199
Sales at will 149
Transactions with no price 0
Shares from compensation/vesting 15,408,925
Sales filed before the plan box existed 131
History held since 19 Aug 2014