Richard Koo

Insider Reports History

Location
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 07 Jun 2021 Direct
Amphastar Pharmaceuticals, Inc. Director Common Stock 10K $570K $57.00 07 Jun 2021 Indirect
Amphastar Pharmaceuticals, Inc. Director Stock Option (right to buy) 17.2K 07 Jun 2021 Direct

Insider Reports Filed by Richard Koo

Symbol Company Period Transactions Value $ Form Type Role Filing Time
AMPH Amphastar Pharmaceuticals, Inc. 07 Jun 2021 2 $0 4 Director 08 Jun 2021, 20:55
AMPH Amphastar Pharmaceuticals, Inc. 01 Jun 2021 3 -$73.7K 4 Director 02 Jun 2021, 19:34