Home > Insider Trading > Filing (0001567619-21-020653)

Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1604464	Atara Biotherapeutics Inc.	ATRA	Biological Products, (No Disgnostic Substances) (2836)	460920988

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1702457	Joe Newell	C/O Atara Biotherapeutics, Inc. 611 Gateway Blvd., Suite 900 South San Francisco CA 94080	Chief Operations Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2021-11-15	3,500	$12.15	123,429	No	4	M	Direct
Common Stock	Disposition	2021-11-15	7,000	$17.71	116,429	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2021-11-15	2,792	$0.00	2,792	$12.15
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2021-11-15	708	$0.00	708	$12.15

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
32,083		2030-02-28	No	4	M	Direct
9,917		2030-02-28	No	4	M	Direct

Footnotes

Transaction pursuant to Rule 10b5-1 Plan adopted September 14, 2020.
The price in Column 4 is a weighted average sale price. The prices actually received ranged from $17.62 to $17.85. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
1/48th of the shares subject to the stock option vest and become exercisable each month with the initial installment vesting on April 1, 2020, subject to the reporting person's continuous service.