Ownership

Richard Koo

Insider Reports History

Entity: Individual
Location: 11570 6 Th Street, Rancho Cucamonga, CA
Signature: /s/ Eva Wen, by power of attorney
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Richard Koo:

Stock	Role	Class	Num Shares	Value	Price $	Report Date	Ownership
Amphastar Pharmaceuticals, Inc.	Director	Common Stock	259K	$14.8M	$57.00	Jun 7, 2021	Direct
Amphastar Pharmaceuticals, Inc.	Director	Common Stock	10K	$570K	$57.00	Jun 7, 2021	Indirect
Amphastar Pharmaceuticals, Inc.	Director	Stock Option (right to buy)	17.2K			Jun 7, 2021	Direct

Showing 1 to 3 of 3 entries

Insider Reports Filed by Richard Koo

Symbol	Company	Period	Transactions	Value $	Form Type	Date Filed	Role
AMPH	Amphastar Pharmaceuticals, Inc.	Jun 7, 2021	2	$0	4	Jun 8, 2021	Director
AMPH	Amphastar Pharmaceuticals, Inc.	Jun 1, 2021	3	-$73.7K	4	Jun 2, 2021	Director