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 Koo Richard
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
Company Symbol Insider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2021-06-01
Sale
2021-06-02
7:34 pm
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
25,827 $19.28 $498,009 263,270
(Indirect
Direct)
View
2020-05-27
Sale
2020-05-28
4:05 pm
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
47,782 $18.18 $868,892 257,419
(Indirect
Direct)
View
2018-12-11
Sale
2018-12-12
8:39 pm
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
29,278 $21.32 $624,075 251,928
(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
2021-06-07
Option Award
2021-06-08
8:55 pm
N/A
2029-06-07
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
23,201 $0 286,471
(Direct)
View
2021-06-01
Exercise
2021-06-02
7:34 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
25,827 $16.43 263,270
(Direct)
View
2021-06-01
Exercise
2021-06-02
7:34 pm
N/A
2021-06-09
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
25,827 $0 263,270
(Direct)
View
2020-06-08
Option Award
2020-06-09
8:21 pm
N/A
2028-06-08
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
21,855 $0 279,274
(Direct)
View
2020-05-27
Exercise
2020-05-28
4:05 pm
N/A
2020-05-27
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
47,782 $0 257,419
(Direct)
View
2020-05-27
Exercise
2020-05-28
4:05 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
47,782 $15.11 257,419
(Direct)
View
2019-06-12
Option Award
2019-06-13
7:57 pm
N/A
2027-06-12
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
19,406 $0 271,334
(Direct)
View
2018-12-11
Exercise
2018-12-12
8:39 pm
N/A
2018-12-20
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
29,278 $0 251,928
(Direct)
View
2018-12-11
Exercise
2018-12-12
8:39 pm
N/A
N/A
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
29,278 $14.66 251,928
(Direct)
View
2018-06-07
Option Award
2018-06-11
8:05 pm
N/A
2026-06-07
Amphastar Pharmaceuticals Inc. AMPH Koo Richard
Director
23,269 $0 268,607
(Direct)
View