Insider Trading - Clark Mitchall G.

Real time insider trading transaction history:

  1. Insiders must file a Form 4 covering their trades within two business days.
  2. Section 16 prohibits insiders 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 Clark Mitchall G.

Common stock purchase or sale:
Transaction
Date		 Reported
DateTime		 Company Symbol Insider
Relationship		 Shares
Traded		 Average
Price		 Total
Amount		 Shares
Owned		 Filing
2017-02-15
Sale		 2017-02-16
8:09 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 3,059 $15.96 $48,822 183,315
(Direct)		 View
2017-05-15
Sale		 2017-05-17
4:57 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 3,873 $15.25 $59,063 179,442
(Direct)		 View
2017-08-15
Sale		 2017-08-17
5:34 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 3,021 $14.33 $43,291 178,361
(Direct)		 View
2017-11-15
Sale		 2017-11-17
6:26 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 3,290 $14.2 $46,718 175,071
(Direct)		 View
2018-03-27
Sale		 2018-03-28
8:10 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 100,203 $37.87 $3,795,062 202,890
(Direct)		 View
2018-03-29
Sale		 2018-04-03
4:14 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 22,400 $40.07 $897,568 133,671
(Direct)		 View
2018-05-15
Sale		 2018-05-16
8:38 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 4,647 $46.06 $214,026 133,832
(Direct)		 View
2018-05-18
Sale		 2018-05-21
6:32 pm		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 25,860 $50.03 $1,293,776 107,972
(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
2017-02-06
Option Award		 2017-02-08
5:34 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 49,500 $0 144,687
(Direct)		 View
2017-02-15
Exercise		 2017-02-16
8:09 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 7,211 $0 183,315
(Direct)		 View
2017-05-15
Exercise		 2017-05-17
4:57 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 7,212 $0 179,442
(Direct)		 View
2017-08-15
Exercise		 2017-08-17
5:34 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 7,211 $0 178,361
(Direct)		 View
2017-11-15
Exercise		 2017-11-17
6:26 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 7,212 $0 175,071
(Direct)		 View
2018-02-06
Option Award		 2018-02-08
5:43 pm		 N/A
2025-02-06		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 75,000 $0 233,617
(Direct)		 View
2018-02-06
Tax Withholding		 2018-02-08
5:43 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 4,437 $35.8 233,617
(Direct)		 View
2018-02-09
Tax Withholding		 2018-02-12
8:56 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 3,704 $41.7 179,913
(Direct)		 View
2018-02-15
Exercise		 2018-02-20
8:23 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 7,211 $0 188,328
(Direct)		 View
2018-02-15
Tax Withholding		 2018-02-20
8:23 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 3,604 $47.05 188,328
(Direct)		 View
2018-03-27
Exercise		 2018-03-28
8:10 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 28,848 $25.15 202,890
(Direct)		 View
2018-03-27
Exercise		 2018-03-28
8:10 pm		 N/A
2022-01-16		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 72,754 $0 202,890
(Direct)		 View
2018-03-27
Exercise		 2018-03-28
8:10 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 32,500 $22.72 202,890
(Direct)		 View
2018-03-27
Exercise		 2018-03-28
8:10 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 11,406 $11 202,890
(Direct)		 View
2018-05-15
Exercise		 2018-05-16
8:38 pm		 N/A
N/A		 Atara Biotherapeutics Inc. ATRA Clark Mitchall G.
EVP & Chief R & QA Officer		 4,808 $0 133,832
(Direct)		 View