Filing Details

Accession Number:
0001209191-21-009054
Form Type:
4
Zero Holdings:
No
Publication Time:
2021-02-09 19:59:13
Reporting Period:
2021-02-08
Accepted Time:
2021-02-09 19:59:13
SEC Url:
Form 4 Filing
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 Disposition 2021-02-08 3,886 $20.39 105,669 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Direct
Footnotes
  1. Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the reporting person. The sale is intended to comply with the requirements of Rule 10b5-1(c)(1)(i)(B) under the Exchange Act and be interpreted to meet the requirements of Rule 10b5-1(c).
  2. The sale price of the reporting person's shares represents the weighted average price of all shares sold by a broker on February 8, 2021 on behalf of a group of employees of the Issuer to satisfy the payment of withholding tax liability of such employees.