Ownership

Rong Zhou - SENIOR EVP, PRODUCTION CENTER at Amphastar Pharmaceuticals, Inc.

Insider Transactions and Holdings

Entity Type: Individual
Role: Senior Evp, Production Center
Stock Symbol: AMPH on Nasdaq
Industry: Pharmaceutical Preparations
All Insider Reports: All Insider Reports

Rong Zhou - trading volume in the past year for Amphastar Pharmaceuticals, Inc.

	Shares	%	Avg Price	Total $
Buys
Sells	-28.9K	100%	$46.65	-$1.35M
Net	-28.9K	-100%		-$1.35M

Holdings reported by Rong Zhou for Amphastar Pharmaceuticals, Inc.

Security	Num Shares	Value	Price $	Transaction Date	Ownership	Underlying Class	Underlying Amount
Common Srock	120K	$5.17M	$43.05	Mar 16, 2024	Direct
Common Srock	137K	$3.81M	$27.69	Mar 17, 2025	Direct
Common Stock	5K	$138K	$27.69	Mar 15, 2025	Indirect
Employee Stock Option (right to buy)	52.4K			Mar 10, 2025	Direct	Common Stock

Transactions reported by Rong Zhou for Amphastar Pharmaceuticals, Inc.

Sym	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.