Filing Details

Accession Number:
0001140361-23-040563
Form Type:
4
Zero Holdings:
No
Publication Time:
2023-08-18 18:25:23
Reporting Period:
2023-08-16
Accepted Time:
2023-08-18 18:25:23
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
1809916 Amar Murugan C/O Atara Biotherapeutics, Inc.
2380 Conejo Spectrum St, Suite 200
Thousand Oaks CA 91320
Evp, Chief Legal Officer No No 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 2023-08-16 5,050 $1.65 269,013 No 4 S Direct
Common Stock Disposition 2023-08-16 3,622 $1.65 265,391 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Direct
No 4 S Direct
Footnotes
  1. Shares sold automatically to satisfy tax withholding obligations in connection with the vesting of previously granted restricted stock units, pursuant to a sale-to-cover provision in the award agreement.
  2. The sale price of the reporting person's shares represents the weighted average price of all shares sold by a broker on August 16, 2023 and August 17, 2023 on behalf of a group of employees of the Issuer to satisfy the payment of withholding tax liability of such employee.
  3. Includes 3,118 shares purchased under the Issuer's Employee Stock Purchase Plan on May 31, 2023.