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
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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.

Class	Num Shares	Value	Price $	Transaction Date	Ownership	Underlying Class	Underlying Amount
Common Stock	118K	$5.36M	$45.23	Dec 13, 2024	Direct
Common Srock	120K	$5.17M	$43.05	Mar 16, 2024	Direct
Common Stock	5K	$226K	$45.23	Dec 12, 2024	Indirect
Employee Stock Option (right to buy)	26.4K			Mar 4, 2024	Direct	Common Stock
Employee Stock Option (right to buy)	9.79K			Dec 13, 2024	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.