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.
Goto 0, 1, 2, ...5, 6, Next
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2024-03-06
Sale
2024-03-08
4:52 pm
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & TREASURER
18,136$46.48$842,883109,300
(Direct)
View
2024-03-05
Sale
2024-03-06
5:57 pm
Amphastar Pharmaceuticals Inc.AMPHZASLOFF MICHAEL A
Director
12,500$47.18$589,72421,326
(Direct)
View
2024-03-01
Sale
2024-03-04
8:35 pm
Amphastar Pharmaceuticals Inc.AMPHPetersen Floyd F.
Director
500$45.69$22,84779,833
(Direct)
View
2024-02-01
Sale
2024-02-02
7:37 pm
Amphastar Pharmaceuticals Inc.AMPHPetersen Floyd F.
Director
500$53.1$26,54880,333
(Direct)
View
2024-01-10
Sale
2024-01-11
4:37 pm
Amphastar Pharmaceuticals Inc.AMPHLuo Mary Z.
Zhang Jack Y.
COO,Chief Scientist & Chairman
10% Owner
131,386$54.59$7,171,76810,015,813
(Indirect
Direct)
View
2024-01-08
Sale
2024-01-10
6:27 pm
Amphastar Pharmaceuticals Inc.AMPHLuo Mary Z.
Zhang Jack Y.
COO,Chief Scientist & Chairman
10% Owner
219,800$58.23$12,798,70810,147,199
(Indirect
Direct)
View
2024-01-02
Sale
2024-01-03
7:25 pm
Amphastar Pharmaceuticals Inc.AMPHPetersen Floyd F.
Director
500$61.37$30,68380,833
(Direct)
View
2023-12-01
Sale
2023-12-05
6:25 pm
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
Senior EVP, Production Center
7,830$59.03$462,195217,088
(Indirect
Direct)
View
2023-12-01
Sale
2023-12-04
8:49 pm
Amphastar Pharmaceuticals Inc.AMPHPetersen Floyd F.
Director
500$57.9$28,95281,333
(Direct)
View
2023-11-17
Sale
2023-11-20
5:23 pm
Amphastar Pharmaceuticals Inc.AMPHPRINS RICHARD K
Director
4,000$55.86$223,44630,895
(Direct)
View
2023-11-14
Sale
2023-11-16
4:05 pm
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
59,250$55.67$3,298,475147,685
(Direct)
View
2023-11-13
Sale
2023-11-15
4:31 pm
Amphastar Pharmaceuticals Inc.AMPHPRINS RICHARD K
Director
5,000$52.5$262,50035,895
(Direct)
View
2023-11-14
Sale
2023-11-15
4:30 pm
Amphastar Pharmaceuticals Inc.AMPHDeflin Gayle
Director
4,163$55.45$230,8382,716
(Direct)
View
2023-11-01
Sale
2023-11-02
8:37 pm
Amphastar Pharmaceuticals Inc.AMPHPetersen Floyd F.
Director
500$45.3$22,65181,833
(Direct)
View
2023-10-02
Sale
2023-10-03
6:38 pm
Amphastar Pharmaceuticals Inc.AMPHPetersen Floyd F.
Director
500$45.78$22,89082,333
(Direct)
View
2023-09-06
Sale
2023-09-08
4:08 pm
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
60,743$51.75$3,143,195211,988
(Direct)
View
2023-08-28
Sale
2023-08-29
6:54 pm
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP Corp Admin Center
28,816$53.13$1,530,99488,304
(Indirect
Direct)
View
2023-08-18
Sale
2023-08-21
4:05 pm
Amphastar Pharmaceuticals Inc.AMPHPRINS RICHARD K
Director
2,000$52.5$105,00640,895
(Direct)
View
2023-08-15
Sale
2023-08-16
8:23 pm
Amphastar Pharmaceuticals Inc.AMPHZASLOFF MICHAEL A
Director
12,759$57.22$730,02533,826
(Direct)
View
2023-08-15
Sale
2023-08-16
8:22 pm
Amphastar Pharmaceuticals Inc.AMPHPRINS RICHARD K
Director
4,163$57.39$238,91142,895
(Direct)
View
2023-06-15
Sale
2023-06-20
4:05 pm
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
5,000$51.79$258,947229,081
(Indirect
Direct)
View
2023-06-15
Sale
2023-06-20
4:01 pm
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
36,868$50.85$1,874,790120,656
(Direct)
View
2023-06-13
Sale
2023-06-14
5:36 pm
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
5,000$48.24$241,200210,872
(Indirect
Direct)
View
2023-06-02
Sale
2023-06-05
5:06 pm
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
11,000$46.35$509,859113,093
(Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2024-03-06
Exercise
2024-03-08
4:52 pm
N/A
2026-03-17
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & TREASURER
8,826$0109,300
(Direct)
View
2024-03-06
Exercise
2024-03-08
4:52 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & TREASURER
8,826$11.33109,300
(Direct)
View
2024-03-06
Tax Withholding
2024-03-08
4:52 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & TREASURER
2,190$46.31109,300
(Direct)
View
2024-03-06
Tax Withholding
2024-03-08
4:49 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP CORP ADMIN CENTER
1,221$46.3181,661
(Direct)
View
2024-03-06
Tax Withholding
2024-03-08
4:47 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
SENIOR EVP, PRODUCTION CENTER
1,390$46.31228,219
(Direct)
View
2024-03-06
Tax Withholding
2024-03-08
4:32 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhang Jack Y.
Luo Mary Z.
CEO & Chief Scientific Officer
10% Owner
10,021$46.3110,092,212
(Direct)
View
2024-03-04
Option Award
2024-03-06
6:29 pm
N/A
2034-03-04
Amphastar Pharmaceuticals Inc.AMPHZhang Jack Y.
Luo Mary Z.
CEO & CHIEF SCIENTIFIC OFFICER
10% Owner
284,002$010,294,815
(Direct)
View
2024-03-04
Option Award
2024-03-06
5:54 pm
N/A
2034-03-04
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP CORP ADMIN CENTER
33,409$0105,537
(Direct)
View
2024-03-04
Option Award
2024-03-06
5:51 pm
N/A
2034-03-04
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
SENIOR EVP, PRODUCTION CENTER
38,899$0255,987
(Direct)
View
2024-03-04
Option Award
2024-03-06
5:49 pm
N/A
2034-03-04
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & TREASURER
60,395$0161,755
(Direct)
View
2023-12-01
Exercise
2023-12-05
6:25 pm
N/A
2024-04-14
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
Senior EVP, Production Center
7,830$0217,088
(Direct)
View
2023-12-04
Exercise
2023-12-05
6:25 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
Senior EVP, Production Center
3,514$16.19217,088
(Direct)
View
2023-12-01
Exercise
2023-12-05
6:25 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
Senior EVP, Production Center
4,316$14.4217,088
(Direct)
View
2023-11-17
Gift
2023-11-20
5:23 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPRINS RICHARD K
Director
1,000$030,895
(Direct)
View
2023-11-14
Exercise
2023-11-16
4:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
21,250$20.23147,685
(Direct)
View
2023-11-14
Exercise
2023-11-16
4:05 pm
N/A
2029-03-15
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
59,250$0147,685
(Direct)
View
2023-11-14
Exercise
2023-11-16
4:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
38,000$13.03147,685
(Direct)
View
2023-09-06
Exercise
2023-09-08
4:08 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
21,250$20.23211,988
(Direct)
View
2023-09-06
Exercise
2023-09-08
4:08 pm
N/A
2028-03-15
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
56,500$0211,988
(Direct)
View
2023-09-06
Exercise
2023-09-08
4:08 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
10,000$19.79211,988
(Direct)
View
2023-09-06
Exercise
2023-09-08
4:08 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
25,250$13.03211,988
(Direct)
View
2023-08-28
Exercise
2023-08-29
6:54 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP Corp Admin Center
5,497$20.2388,304
(Direct)
View
2023-08-28
Exercise
2023-08-29
6:54 pm
N/A
2028-06-14
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP Corp Admin Center
28,816$088,304
(Direct)
View
2023-08-28
Exercise
2023-08-29
6:54 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP Corp Admin Center
20,000$13.0388,304
(Direct)
View
2023-08-28
Exercise
2023-08-29
6:54 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP Corp Admin Center
3,319$16.9688,304
(Direct)
View
2023-06-20
Exercise
2023-06-21
5:05 pm
N/A
2026-03-17
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
9,651$0241,796
(Direct)
View
2023-06-20
Exercise
2023-06-21
5:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
9,651$11.33241,796
(Direct)
View
2023-06-15
Exercise
2023-06-20
4:05 pm
N/A
2024-04-14
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
19,377$0229,081
(Direct)
View
2023-06-15
Exercise
2023-06-20
4:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
4,631$14.95229,081
(Direct)
View
2023-06-15
Exercise
2023-06-20
4:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
1,171$16.19229,081
(Direct)
View
2023-06-15
Exercise
2023-06-20
4:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
13,575$14.4229,081
(Direct)
View
2023-06-15
Exercise
2023-06-20
4:01 pm
N/A
2028-03-15
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
36,868$0120,656
(Direct)
View
2023-06-15
Exercise
2023-06-20
4:01 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
36,868$19.79120,656
(Direct)
View
2023-06-13
Exercise
2023-06-14
5:36 pm
N/A
2024-04-14
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
5,000$0210,872
(Direct)
View
2023-06-13
Exercise
2023-06-14
5:36 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHZhou Rong
EVP, Production Center
5,000$14.4210,872
(Direct)
View
2023-06-10
Tax Withholding
2023-06-12
4:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHLee Howard
Director
375$45.67145,280
(Direct)
View
2023-06-05
Option Award
2023-06-07
8:13 pm
N/A
2031-06-05
Amphastar Pharmaceuticals Inc.AMPHPRINS RICHARD K
Director
9,732$054,074
(Direct)
View
2023-06-05
Option Award
2023-06-07
8:12 pm
N/A
2031-06-05
Amphastar Pharmaceuticals Inc.AMPHPetersen Floyd F.
Director
9,732$089,849
(Direct)
View
2023-06-05
Option Award
2023-06-07
6:24 pm
N/A
2031-06-05
Amphastar Pharmaceuticals Inc.AMPHGerst Diane G.
Director
9,732$022,574
(Direct)
View
2023-06-05
Option Award
2023-06-07
5:20 pm
N/A
2031-06-05
Amphastar Pharmaceuticals Inc.AMPHZASLOFF MICHAEL A
Director
9,732$053,601
(Direct)
View
2023-06-05
Option Award
2023-06-07
5:19 pm
N/A
2031-06-05
Amphastar Pharmaceuticals Inc.AMPHLee Howard
Director
9,732$0152,671
(Direct)
View
2023-06-05
Option Award
2023-06-07
5:18 pm
N/A
2031-06-05
Amphastar Pharmaceuticals Inc.AMPHDeflin Gayle
Director
9,732$013,895
(Direct)
View
2023-06-04
Tax Withholding
2023-06-06
6:49 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHLiawatidewi Yakob
EVP Corp Admin Center
378$46.772,128
(Direct)
View
2023-06-02
Exercise
2023-06-05
5:06 pm
N/A
2027-03-16
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
11,000$0113,093
(Direct)
View
2023-06-02
Exercise
2023-06-05
5:06 pm
N/A
N/A
Amphastar Pharmaceuticals Inc.AMPHPETERS WILLIAM J
CFO, EVP & Treasurer
11,000$13.35113,093
(Direct)
View
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