PETERS WILLIAM J

Corporate insiderCFO, EVP & TREASUREROpen-market Form 4 activity · 7 Aug 2026 – 21 Sept 2026

Transactions

0 buys · 2 sells

Bought

Open-market purchases

Sold

$287K

Open-market sales

Stocks

Traded

★ Trade spotlightAMPHAmphastar Pharmaceuticals, Inc.The latest-traded stock and its 1Y chart are free

● buy● sell

Loading price history…

All transactions

2 trades in the recent window · 1 grouped rows

	Stock	Trades	Bought	Sold	Latest
	AMPH Amphastar Pharmaceuticals, Inc.	2 0 buys · 2 sells	—	$287K	21 Sept 2026

▸AMPHAmphastar Pharmaceuticals, Inc.

2 trades · latest 21 Sept 2026— / $287K