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.
"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 Amphastar Pharmaceuticals Inc.
Goto 0, 1, 2, ...6, 7, Next
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
Company Symbol Insider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2022-09-01
Sale
2022-09-02
7:45 pm
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
500 $29.44 $14,722 88,608
(Direct)
View
2022-08-09
Sale
2022-08-10
7:34 pm
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
10,000 $38.35 $383,500 150,002
(Direct)
View
2022-08-08
Sale
2022-08-10
5:04 pm
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
8,055 $38.38 $309,145 67,121
(Indirect
Direct)
View
2022-08-01
Sale
2022-08-02
5:02 pm
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
500 $37.48 $18,739 89,108
(Direct)
View
2022-07-18
Sale
2022-07-19
5:19 pm
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,520 $37.23 $56,597 14,178
(Direct)
View
2022-07-15
Sale
2022-07-18
6:13 pm
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
10,837 $36.64 $397,083 72,121
(Indirect
Direct)
View
2022-07-11
Sale
2022-07-12
7:38 pm
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,521 $36.26 $55,145 15,698
(Direct)
View
2022-07-05
Sale
2022-07-06
8:52 pm
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,813 $35 $63,460 17,219
(Direct)
View
2022-07-01
Sale
2022-07-05
5:05 pm
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
500 $34.78 $17,391 89,608
(Direct)
View
2022-06-30
Sale
2022-07-05
4:06 pm
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
5,146 $35 $180,110 22,658
(Direct)
View
2022-06-30
Sale
2022-07-01
6:08 pm
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
18,386 $34.95 $642,591 107,168
(Direct)
View
2022-06-17
Sale
2022-06-22
4:21 pm
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
5,512 $32.05 $176,682 100,480
(Direct)
View
2022-06-06
Sale
2022-06-07
7:36 pm
Amphastar Pharmaceuticals Inc. AMPH Lee Howard
Director
10,291 $37.79 $388,859 138,776
(Direct)
View
2022-06-01
Sale
2022-06-02
5:14 pm
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
500 $37 $18,499 85,945
(Direct)
View
2022-05-23
Sale
2022-05-25
8:21 pm
Amphastar Pharmaceuticals Inc. AMPH Lee Howard
Director
10,000 $34.93 $349,323 149,067
(Direct)
View
2022-05-20
Sale
2022-05-23
4:05 pm
Amphastar Pharmaceuticals Inc. AMPH Zhang Jack Y.
Luo Mary Z.
CEO
10% Owner
10,650 $34.21 $364,365 10,435,341
(Indirect
Direct)
View
2022-05-18
Sale
2022-05-20
4:38 pm
Amphastar Pharmaceuticals Inc. AMPH Zhang Jack Y.
Luo Mary Z.
CEO
10% Owner
108,776 $34 $3,697,861 10,445,991
(Indirect
Direct)
View
2022-05-18
Sale
2022-05-19
5:58 pm
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
9,924 $35.05 $347,826 86,445
(Direct)
View
2022-05-16
Sale
2022-05-18
4:06 pm
Amphastar Pharmaceuticals Inc. AMPH Zhang Jack Y.
Luo Mary Z.
CEO
10% Owner
118,445 $35.75 $4,234,897 10,554,767
(Indirect
Direct)
View
2022-05-16
Sale
2022-05-17
7:46 pm
Amphastar Pharmaceuticals Inc. AMPH ZASLOFF MICHAEL A
Director
10,291 $35.61 $366,500 47,206
(Direct)
View
2022-05-02
Sale
2022-05-03
8:15 pm
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
295 $35.18 $10,378 76,078
(Direct)
View
2022-04-01
Sale
2022-04-04
8:20 pm
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
500 $36.69 $18,345 76,373
(Direct)
View
2022-03-16
Sale
2022-03-18
6:57 pm
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
50,777 $33.96 $1,724,427 104,987
(Direct)
View
2022-03-15
Sale
2022-03-17
8:38 pm
Amphastar Pharmaceuticals Inc. AMPH PRINS RICHARD K
Director
10,000 $34.02 $340,208 45,179
(Direct)
View
2022-03-15
Sale
2022-03-17
6:13 pm
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
7,900 $34.46 $272,248 164,887
(Direct)
View
2022-03-16
Sale
2022-03-17
5:13 pm
Amphastar Pharmaceuticals Inc. AMPH ZASLOFF MICHAEL A
Director
10,000 $33.71 $337,069 57,497
(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
2022-08-09
Exercise
2022-08-10
7:34 pm
N/A
2027-03-16
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
10,000 $0 150,002
(Direct)
View
2022-08-09
Exercise
2022-08-10
7:34 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
10,000 $13.35 150,002
(Direct)
View
2022-08-08
Exercise
2022-08-10
5:04 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
8,055 $19.79 67,121
(Direct)
View
2022-08-08
Exercise
2022-08-10
5:04 pm
N/A
2028-03-15
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
8,055 $0 67,121
(Direct)
View
2022-07-18
Exercise
2022-07-19
5:19 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,520 $20.08 14,178
(Direct)
View
2022-07-18
Exercise
2022-07-19
5:19 pm
N/A
2028-06-08
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,520 $0 14,178
(Direct)
View
2022-07-15
Exercise
2022-07-18
6:13 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
10,837 $19.79 72,121
(Direct)
View
2022-07-15
Exercise
2022-07-18
6:13 pm
N/A
2028-03-15
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
10,837 $0 72,121
(Direct)
View
2022-07-11
Exercise
2022-07-12
7:38 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,521 $20.08 15,698
(Direct)
View
2022-07-11
Exercise
2022-07-12
7:38 pm
N/A
2028-06-08
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,521 $0 15,698
(Direct)
View
2022-07-05
Exercise
2022-07-06
8:52 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,813 $20.08 17,219
(Direct)
View
2022-07-05
Exercise
2022-07-06
8:52 pm
N/A
2028-06-08
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,813 $0 17,219
(Direct)
View
2022-06-30
Exercise
2022-07-05
4:06 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
1,813 $20.08 22,658
(Direct)
View
2022-06-30
Exercise
2022-07-05
4:06 pm
N/A
2027-06-12
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
5,146 $0 22,658
(Direct)
View
2022-06-30
Exercise
2022-07-05
4:06 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
3,333 $20.03 22,658
(Direct)
View
2022-06-30
Exercise
2022-07-01
6:08 pm
N/A
2025-03-26
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
18,386 $0 107,168
(Direct)
View
2022-06-30
Exercise
2022-07-01
6:08 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
18,386 $14.95 107,168
(Direct)
View
2022-06-14
Tax Withholding
2022-06-15
4:06 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
128 $31.02 64,066
(Direct)
View
2022-06-10
Option Award
2022-06-14
5:31 pm
N/A
2030-06-10
Amphastar Pharmaceuticals Inc. AMPH ZASLOFF MICHAEL A
Director
15,147 $0 62,353
(Direct)
View
2022-06-10
Option Award
2022-06-14
5:30 pm
N/A
2030-06-10
Amphastar Pharmaceuticals Inc. AMPH PRINS RICHARD K
Director
15,147 $0 58,326
(Direct)
View
2022-06-10
Gift
2022-06-14
5:30 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PRINS RICHARD K
Director
2,000 $0 58,326
(Direct)
View
2022-06-10
Option Award
2022-06-14
5:29 pm
N/A
2030-06-10
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
15,147 $0 101,092
(Direct)
View
2022-06-10
Option Award
2022-06-14
5:28 pm
N/A
2030-06-10
Amphastar Pharmaceuticals Inc. AMPH Lee Howard
Director
15,147 $0 153,923
(Direct)
View
2022-06-10
Option Award
2022-06-14
5:26 pm
N/A
2030-06-10
Amphastar Pharmaceuticals Inc. AMPH Gerst Diane G.
Director
15,147 $0 23,826
(Direct)
View
2022-06-10
Option Award
2022-06-14
5:25 pm
N/A
2030-06-10
Amphastar Pharmaceuticals Inc. AMPH Deflin Gayle
Director
15,147 $0 21,166
(Direct)
View
2022-06-06
Exercise
2022-06-07
7:36 pm
N/A
2022-06-08
Amphastar Pharmaceuticals Inc. AMPH Lee Howard
Director
10,291 $0 138,776
(Direct)
View
2022-06-06
Exercise
2022-06-07
7:36 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Lee Howard
Director
10,291 $17.11 138,776
(Direct)
View
2022-06-04
Tax Withholding
2022-06-06
4:59 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
264 $37.77 64,194
(Direct)
View
2022-05-23
Exercise
2022-05-25
8:21 pm
N/A
2022-06-08
Amphastar Pharmaceuticals Inc. AMPH Lee Howard
Director
10,000 $0 149,067
(Direct)
View
2022-05-23
Exercise
2022-05-25
8:21 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Lee Howard
Director
10,000 $17.11 149,067
(Direct)
View
2022-05-19
Tax Withholding
2022-05-20
5:53 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
378 $33.7 104,609
(Direct)
View
2022-05-18
Exercise
2022-05-19
5:58 pm
N/A
2022-06-08
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
20,291 $0 86,445
(Direct)
View
2022-05-18
Exercise
2022-05-19
5:58 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director
20,291 $17.11 86,445
(Direct)
View
2022-05-16
Exercise
2022-05-17
7:46 pm
N/A
2022-06-08
Amphastar Pharmaceuticals Inc. AMPH ZASLOFF MICHAEL A
Director
10,291 $0 47,206
(Direct)
View
2022-05-16
Exercise
2022-05-17
7:46 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH ZASLOFF MICHAEL A
Director
10,291 $17.11 47,206
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
7:04 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
1,673 $34.18 63,199
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
7:04 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
1,619 $34.22 63,199
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
7:01 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
VP
2,447 $34.18 182,251
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
7:01 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
VP
2,283 $34.22 182,251
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
6:57 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
4,162 $34.18 104,987
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
6:57 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
4,995 $34.22 104,987
(Direct)
View
2022-03-16
Exercise
2022-03-18
6:57 pm
N/A
2024-04-21
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
50,777 $0 104,987
(Direct)
View
2022-03-16
Exercise
2022-03-18
6:57 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
50,777 $14.4 104,987
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
6:54 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Zhang Jack Y.
Luo Mary Z.
CEO
10% Owner
22,820 $34.18 10,673,212
(Direct)
View
2022-03-16
Tax Withholding
2022-03-18
6:54 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Zhang Jack Y.
Luo Mary Z.
CEO
10% Owner
35,667 $34.22 10,673,212
(Direct)
View
2022-03-15
Exercise
2022-03-17
8:38 pm
N/A
2022-06-08
Amphastar Pharmaceuticals Inc. AMPH PRINS RICHARD K
Director
10,000 $0 45,179
(Direct)
View
2022-03-15
Exercise
2022-03-17
8:38 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PRINS RICHARD K
Director
10,000 $17.11 45,179
(Direct)
View
2022-03-15
Option Award
2022-03-17
6:13 pm
N/A
2032-03-15
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
72,734 $0 164,887
(Direct)
View
2022-03-15
Tax Withholding
2022-03-17
6:13 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO
5,989 $34.74 164,887
(Direct)
View
2022-03-16
Exercise
2022-03-17
5:13 pm
N/A
2022-06-08
Amphastar Pharmaceuticals Inc. AMPH ZASLOFF MICHAEL A
Director
10,000 $0 57,497
(Direct)
View
2022-03-16
Exercise
2022-03-17
5:13 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH ZASLOFF MICHAEL A
Director
10,000 $17.11 57,497
(Direct)
View
2022-03-15
Option Award
2022-03-17
5:11 pm
N/A
2032-03-15
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
38,081 $0 93,058
(Direct)
View
2022-03-15
Tax Withholding
2022-03-17
5:11 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
VP
1,559 $34.74 93,058
(Direct)
View
2022-03-15
Option Award
2022-03-17
5:07 pm
N/A
2032-03-15
Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
VP
45,174 $0 218,497
(Direct)
View
2022-03-15
Tax Withholding
2022-03-17
5:07 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Zhou Rong
VP
1,652 $34.74 218,497
(Direct)
View
Goto 0, 1, 2, ...6, 7, Next