Rong Zhou

Insider Reports History

Entity
Individual
Location
C/O Amphastar Pharmaceuticals Inc., 11570 Sixth 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 Rong Zhou:

Stock Role Class Num Shares Value Price $ Report Date Ownership
Amphastar Pharmaceuticals, Inc. SENIOR EVP, PRODUCTION CENTER Common Stock 118K $5.79M $48.88 Nov 12, 2024 Direct
Amphastar Pharmaceuticals, Inc. SENIOR EVP, PRODUCTION CENTER Common Srock 120K $5.17M $43.05 Mar 16, 2024 Direct
Amphastar Pharmaceuticals, Inc. SENIOR EVP, PRODUCTION CENTER Common Stock 5K $244K $48.88 Nov 12, 2024 Indirect
Amphastar Pharmaceuticals, Inc. SENIOR EVP, PRODUCTION CENTER Employee Stock Option (right to buy) 26.4K Mar 4, 2024 Direct
Amphastar Pharmaceuticals, Inc. SENIOR EVP, PRODUCTION CENTER Employee Stock Option (right to buy) 0 Nov 12, 2024 Direct

Insider Reports Filed by Rong Zhou

Symbol Company Period Transactions Value $ Form Type Date Filed Role
AMPH Amphastar Pharmaceuticals, Inc. Nov 12, 2024 3 -$234K 4 Nov 13, 2024 SENIOR EVP, PRODUCTION CENTER
AMPH Amphastar Pharmaceuticals, Inc. Sep 13, 2024 3 -$99.9K 4 Sep 17, 2024 SENIOR EVP, PRODUCTION CENTER
AMPH Amphastar Pharmaceuticals, Inc. Aug 26, 2024 3 -$134K 4 Aug 27, 2024 SENIOR EVP, PRODUCTION CENTER
AMPH Amphastar Pharmaceuticals, Inc. Mar 15, 2024 3 -$238K 4 Mar 19, 2024 SENIOR EVP, PRODUCTION CENTER
AMPH Amphastar Pharmaceuticals, Inc. Mar 6, 2024 1 -$64.4K 4 Mar 8, 2024 SENIOR EVP, PRODUCTION CENTER
AMPH Amphastar Pharmaceuticals, Inc. Mar 4, 2024 2 $0 4 Mar 6, 2024 SENIOR EVP, PRODUCTION CENTER
AMPH Amphastar Pharmaceuticals, Inc. Dec 1, 2023 6 -$343K 4 Dec 5, 2023 Senior EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Jun 20, 2023 2 $109K 4 Jun 21, 2023 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Jun 15, 2023 7 $24.7K 4 Jun 20, 2023 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Jun 13, 2023 3 -$169K 4 Jun 14, 2023 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. May 18, 2023 3 -$298K 4 May 19, 2023 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Mar 16, 2023 2 -$155K 4 Mar 20, 2023 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Mar 15, 2023 1 -$75.8K 4 Mar 17, 2023 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Mar 6, 2023 2 $0 4 Mar 8, 2023 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Mar 16, 2022 2 -$162K 4 Mar 18, 2022 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Mar 15, 2022 3 -$57.4K 4 Mar 17, 2022 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Feb 25, 2022 3 -$305K 4 Mar 1, 2022 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Feb 8, 2022 3 -$111K 4 Feb 9, 2022 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Jan 10, 2022 4 -$378K 4 Jan 11, 2022 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Nov 11, 2021 3 -$87.4K 4 Nov 12, 2021 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Aug 2, 2021 3 -$131K 4 Aug 4, 2021 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Jul 26, 2021 3 -$62.3K 4 Jul 27, 2021 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Jul 20, 2021 3 -$52.3K 4 Jul 22, 2021 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. Jun 8, 2021 4 -$134K 4 Jun 10, 2021 EVP, Production Center
AMPH Amphastar Pharmaceuticals, Inc. May 13, 2020 6 -$189K 4 May 17, 2021 EVP, Production Center