Insider Trading & Ownership - Zhou Rong

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Zhou Rong
Common stock purchase or sale:
Transaction
Date		 Reported
DateTime		 Company Symbol Insider
Relationship		 Shares
Traded		 Average
Price		 Total
Amount		 Shares
Owned		 Filing
2024-12-12
Sale		 2024-12-16
5:22 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 15,000 $44.85 $672,815 250,711
(Indirect
Direct)		 View
2024-11-12
Sale		 2024-11-13
8:26 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 6,893 $48.88 $336,930 223,056
(Indirect
Direct)		 View
2024-09-13
Sale		 2024-09-17
4:11 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 3,000 $48.26 $144,785 229,949
(Indirect
Direct)		 View
2024-08-26
Sale		 2024-08-27
9:33 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 4,000 $48.35 $193,400 232,949
(Indirect
Direct)		 View
2023-12-01
Sale		 2023-12-05
6:25 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
Senior EVP, Production Center		 7,830 $59.03 $462,195 217,088
(Indirect
Direct)		 View
2023-06-15
Sale		 2023-06-20
4:05 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 5,000 $51.79 $258,947 229,081
(Indirect
Direct)		 View
2023-06-13
Sale		 2023-06-14
5:36 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 5,000 $48.24 $241,200 210,872
(Indirect
Direct)		 View
2023-05-18
Sale		 2023-05-19
6:36 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 10,000 $44.2 $442,050 215,157
(Indirect
Direct)		 View
2022-02-25
Sale		 2022-03-01
4:07 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 13,246 $28.77 $381,087 174,975
(Indirect
Direct)		 View
2022-02-08
Sale		 2022-02-09
9:07 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,000 $26.77 $187,390 188,221
(Indirect
Direct)		 View
2022-01-10
Sale		 2022-01-11
8:28 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 20,928 $25.36 $530,684 195,221
(Indirect
Direct)		 View
2021-11-11
Sale		 2021-11-12
7:44 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,813 $21.67 $169,308 187,789
(Indirect
Direct)		 View
2021-08-02
Sale		 2021-08-04
4:05 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 9,123 $21.24 $193,734 195,602
(Indirect
Direct)		 View
2021-07-26
Sale		 2021-07-27
6:46 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 6,000 $20.87 $125,220 204,725
(Indirect
Direct)		 View
2021-07-20
Sale		 2021-07-22
4:13 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 5,187 $20.57 $106,697 210,725
(Indirect
Direct)		 View
2021-06-08
Sale		 2021-06-10
4:45 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 12,912 $19.43 $250,829 190,912
(Indirect
Direct)		 View
2021-05-13
Sale		 2021-05-17
7:38 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 18,119 $19.71 $357,170 222,114
(Indirect
Direct)		 View
2020-06-03
Sale		 2020-06-05
4:15 pm		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 22,969 $18.98 $435,855 192,822
(Indirect
Direct)		 View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date		 Reported
DateTime		 Exercisable
Expiration		 Company Symnbol Insider
Relationship		 Shares
Traded		 Conversion
Price		 Shares
Owned		 Filing
2025-03-15
Tax Withholding		 2025-03-18
7:43 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 1,222 $26.66 242,165
(Direct)		 View
2025-03-17
Tax Withholding		 2025-03-18
7:43 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 1,967 $27.69 242,165
(Direct)		 View
2025-03-10
Option Award		 2025-03-12
4:53 pm		 N/A
2035-03-10		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 77,129 $0 297,791
(Direct)		 View
2025-03-06
Tax Withholding		 2025-03-10
6:10 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 1,354 $28.32 220,662
(Direct)		 View
2025-03-04
Tax Withholding		 2025-03-06
4:22 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 1,121 $27.62 222,016
(Direct)		 View
2024-12-12
Exercise		 2024-12-16
5:22 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 15,000 $11.33 250,711
(Direct)		 View
2024-12-12
Exercise		 2024-12-16
5:22 pm		 N/A
2026-03-17		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 15,000 $0 250,711
(Direct)		 View
2024-11-12
Exercise		 2024-11-13
8:26 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 6,893 $14.95 223,056
(Direct)		 View
2024-11-12
Exercise		 2024-11-13
8:26 pm		 N/A
2025-03-26		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 6,893 $0 223,056
(Direct)		 View
2024-09-13
Exercise		 2024-09-17
4:11 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 3,000 $14.95 229,949
(Direct)		 View
2024-09-13
Exercise		 2024-09-17
4:11 pm		 N/A
2025-03-26		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 3,000 $0 229,949
(Direct)		 View
2024-08-26
Exercise		 2024-08-27
9:33 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 4,000 $14.95 232,949
(Direct)		 View
2024-08-26
Exercise		 2024-08-27
9:33 pm		 N/A
2025-03-26		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 4,000 $0 232,949
(Direct)		 View
2024-03-15
Tax Withholding		 2024-03-19
5:15 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 5,535 $43.05 222,684
(Direct)		 View
2024-03-06
Tax Withholding		 2024-03-08
4:47 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 1,390 $46.31 228,219
(Direct)		 View
2024-03-04
Option Award		 2024-03-06
5:51 pm		 N/A
2034-03-04		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
SENIOR EVP, PRODUCTION CENTER		 38,899 $0 255,987
(Direct)		 View
2023-12-04
Exercise		 2023-12-05
6:25 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
Senior EVP, Production Center		 3,514 $16.19 217,088
(Direct)		 View
2023-12-01
Exercise		 2023-12-05
6:25 pm		 N/A
2024-04-14		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
Senior EVP, Production Center		 7,830 $0 217,088
(Direct)		 View
2023-12-01
Exercise		 2023-12-05
6:25 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
Senior EVP, Production Center		 4,316 $14.4 217,088
(Direct)		 View
2023-06-20
Exercise		 2023-06-21
5:05 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 9,651 $11.33 241,796
(Direct)		 View
2023-06-20
Exercise		 2023-06-21
5:05 pm		 N/A
2026-03-17		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 9,651 $0 241,796
(Direct)		 View
2023-06-15
Exercise		 2023-06-20
4:05 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 1,171 $16.19 229,081
(Direct)		 View
2023-06-15
Exercise		 2023-06-20
4:05 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 4,631 $14.95 229,081
(Direct)		 View
2023-06-15
Exercise		 2023-06-20
4:05 pm		 N/A
2024-04-14		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 19,377 $0 229,081
(Direct)		 View
2023-06-15
Exercise		 2023-06-20
4:05 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 13,575 $14.4 229,081
(Direct)		 View
2023-06-13
Exercise		 2023-06-14
5:36 pm		 N/A
2024-04-14		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 5,000 $0 210,872
(Direct)		 View
2023-06-13
Exercise		 2023-06-14
5:36 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 5,000 $14.4 210,872
(Direct)		 View
2023-05-18
Exercise		 2023-05-19
6:36 pm		 N/A
2024-04-14		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 10,000 $0 215,157
(Direct)		 View
2023-05-18
Exercise		 2023-05-19
6:36 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 10,000 $14.4 215,157
(Direct)		 View
2023-03-17
Tax Withholding		 2023-03-20
8:04 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 1,901 $36.29 192,266
(Direct)		 View
2023-03-16
Tax Withholding		 2023-03-20
8:04 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 2,283 $37.6 192,266
(Direct)		 View
2023-03-15
Tax Withholding		 2023-03-17
7:04 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 2,057 $36.84 196,450
(Direct)		 View
2023-03-06
Option Award		 2023-03-08
4:06 pm		 N/A
2033-03-06		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 47,011 $0 230,389
(Direct)		 View
2022-03-16
Tax Withholding		 2022-03-18
7:01 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 2,283 $34.22 182,251
(Direct)		 View
2022-03-17
Tax Withholding		 2022-03-18
7:01 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 2,447 $34.18 182,251
(Direct)		 View
2022-03-15
Tax Withholding		 2022-03-17
5:07 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 1,652 $34.74 218,497
(Direct)		 View
2022-03-15
Option Award		 2022-03-17
5:07 pm		 N/A
2032-03-15		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 45,174 $0 218,497
(Direct)		 View
2022-02-25
Exercise		 2022-03-01
4:07 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,000 $10.93 174,975
(Direct)		 View
2022-02-25
Exercise		 2022-03-01
4:07 pm		 N/A
2023-07-30		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,000 $0 174,975
(Direct)		 View
2022-02-08
Exercise		 2022-02-09
9:07 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,000 $10.93 188,221
(Direct)		 View
2022-02-08
Exercise		 2022-02-09
9:07 pm		 N/A
2023-07-30		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,000 $0 188,221
(Direct)		 View
2022-01-10
Exercise		 2022-01-11
8:28 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 14,000 $10.93 195,221
(Direct)		 View
2022-01-10
Exercise		 2022-01-11
8:28 pm		 N/A
2023-07-30		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 14,000 $0 195,221
(Direct)		 View
2021-11-11
Exercise		 2021-11-12
7:44 pm		 N/A
2022-11-07		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,813 $0 187,789
(Direct)		 View
2021-11-11
Exercise		 2021-11-12
7:44 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 7,813 $10.48 187,789
(Direct)		 View
2021-08-02
Exercise		 2021-08-04
4:05 pm		 N/A
2022-11-07		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 6,000 $0 195,602
(Direct)		 View
2021-08-02
Exercise		 2021-08-04
4:05 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 6,000 $10.48 195,602
(Direct)		 View
2021-07-26
Exercise		 2021-07-27
6:46 pm		 N/A
2022-11-07		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 6,000 $0 204,725
(Direct)		 View
2021-07-26
Exercise		 2021-07-27
6:46 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 6,000 $10.48 204,725
(Direct)		 View
2021-07-20
Exercise		 2021-07-22
4:13 pm		 N/A
2022-11-07		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 5,187 $0 210,725
(Direct)		 View
2021-07-20
Exercise		 2021-07-22
4:13 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 5,187 $10.48 210,725
(Direct)		 View
2021-06-08
Exercise		 2021-06-10
4:45 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 8,180 $14.23 190,912
(Direct)		 View
2021-06-08
Exercise		 2021-06-10
4:45 pm		 N/A
2021-12-22		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 8,180 $0 190,912
(Direct)		 View
2021-05-13
Exercise		 2021-05-17
7:38 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 11,820 $14.23 222,114
(Direct)		 View
2021-05-13
Exercise		 2021-05-17
7:38 pm		 N/A
2021-12-22		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 11,820 $0 222,114
(Direct)		 View
2021-03-16
Tax Withholding		 2021-03-18
8:52 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 3,303 $18.44 252,554
(Direct)		 View
2021-03-17
Option Award		 2021-03-18
8:52 pm		 N/A
2031-03-17		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 73,605 $0 252,554
(Direct)		 View
2021-03-15
Tax Withholding		 2021-03-17
8:00 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 1,652 $19.15 182,252
(Direct)		 View
2020-06-03
Exercise		 2020-06-05
4:15 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 20,000 $11.41 192,822
(Direct)		 View
2020-06-03
Exercise		 2020-06-05
4:15 pm		 N/A
2021-03-08		 Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
EVP, Production Center		 20,000 $0 192,822
(Direct)		 View