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Insider Trading - Porter Derrell

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"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
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Insider Trading Transactions for Porter Derrell

Common stock purchase or sale:
Transaction
Date
Reported
DateTime
Company Symbol Insider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2018-05-08
Sale
2018-05-08
8:18 pm
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
1,544 $40.15 $61,992 12,500
(Direct)
View
2018-05-15
Sale
2018-05-16
8:41 pm
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
16,334 $45.02 $735,357 12,500
(Direct)
View
2019-02-15
Sale
2019-02-19
5:05 pm
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
5,909 $40 $236,360 21,688
(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
2017-05-10
Option Award
2017-05-11
7:40 pm
N/A
2024-05-10
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
130,000 $14.3 130,000
(Direct)
View
2018-02-06
Option Award
2018-02-08
5:44 pm
N/A
N/A
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
12,500 $0 25,000
(Direct)
View
2018-02-06
Option Award
2018-02-08
5:44 pm
N/A
2025-02-06
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
25,000 $35.8 25,000
(Direct)
View
2018-05-15
Exercise
2018-05-16
8:41 pm
N/A
N/A
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
16,334 $14.3 12,500
(Direct)
View
2018-05-15
Exercise
2018-05-16
8:41 pm
N/A
2024-05-10
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
16,334 $14.3 12,500
(Direct)
View
2019-02-06
Tax Withholding
2019-02-08
4:23 pm
N/A
N/A
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
1,216 $38.47 24,625
(Direct)
View
2019-02-06
Option Award
2019-02-08
4:23 pm
N/A
N/A
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
12,313 $0 24,625
(Direct)
View
2019-02-06
Option Award
2019-02-08
4:23 pm
N/A
2029-02-05
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
24,625 $38.47 24,625
(Direct)
View
2019-02-15
Exercise
2019-02-19
5:05 pm
N/A
N/A
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
4,000 $14.3 21,688
(Direct)
View
2019-02-15
Exercise
2019-02-19
5:05 pm
N/A
2024-05-10
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
4,000 $14.3 21,688
(Direct)
View
2019-03-26
Option Award
2019-03-27
5:17 pm
N/A
N/A
Atara Biotherapeutics Inc. ATRA Porter Derrell
VP
10,000 $0 31,688
(Direct)
View