Insider Trading & Ownership - Amphastar Pharmaceuticals Inc. (AMPH)

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 Amphastar Pharmaceuticals Inc.
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Common stock purchase or sale:
Transaction
Date		 Reported
DateTime		 Company Symbol Insider
Relationship		 Shares
Traded		 Average
Price		 Total
Amount		 Shares
Owned		 Filing
2022-10-03
Sale		 2022-10-04
7:12 pm		 Amphastar Pharmaceuticals Inc. AMPH Petersen Floyd F.
Director		 500 $28.59 $14,296 88,108
(Direct)		 View
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, EVP & Treasurer		 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
EVP Corp Admin Center		 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
EVP Corp Admin Center		 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, EVP & Treasurer		 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, EVP & Treasurer		 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 & Chief Scientific Officer
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 & Chief Scientific Officer
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 & Chief Scientific Officer
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, EVP & Treasurer		 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, EVP & Treasurer		 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, EVP & Treasurer		 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, EVP & Treasurer		 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
EVP Corp Admin Center		 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
EVP Corp Admin Center		 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
EVP Corp Admin Center		 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
EVP Corp Admin Center		 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, EVP & Treasurer		 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, EVP & Treasurer		 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
EVP Corp Admin Center		 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
2022-05-17
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
EVP Corp Admin Center		 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, EVP & Treasurer		 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
2022-03-17
Tax Withholding		 2022-03-18
7:04 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Liawatidewi Yakob
EVP Corp Admin Center		 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
EVP Corp Admin Center		 1,619 $34.22 63,199
(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
2022-03-16
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
2022-03-16
Exercise		 2022-03-18
6:57 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO, EVP & Treasurer		 50,777 $14.4 104,987
(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, EVP & Treasurer		 50,777 $0 104,987
(Direct)		 View
2022-03-17
Tax Withholding		 2022-03-18
6:57 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH PETERS WILLIAM J
CFO, EVP & Treasurer		 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, EVP & Treasurer		 4,995 $34.22 104,987
(Direct)		 View
2022-03-17
Tax Withholding		 2022-03-18
6:54 pm		 N/A
N/A		 Amphastar Pharmaceuticals Inc. AMPH Zhang Jack Y.
Luo Mary Z.
CEO & Chief Scientific Officer
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 & Chief Scientific Officer
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, EVP & Treasurer		 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, EVP & Treasurer		 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
EVP Corp Admin Center		 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
EVP Corp Admin Center		 1,559 $34.74 93,058
(Direct)		 View
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