Filing Details

Accession Number:
0001209191-15-025188
Form Type:
4
Zero Holdings:
No
Publication Time:
2015-03-11 16:35:24
Reporting Period:
2015-03-09
Filing Date:
2015-03-11
Accepted Time:
2015-03-11 16:35:24
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
1216955 S Joel Marcus C/o Alexandria Real Estate Equities, Inc
385 East Colorado Boulevard, Suite 299
Pasadena CA 91101
Yes 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 Acquisiton 2015-03-09 2,500 $29.32 2,500 No 4 P Indirect Held by the Joel S. Marcus and Barbara A. Marcus Family Trust
Common Stock Acquisiton 2015-03-10 1,500 $29.99 4,000 No 4 P Indirect Held by the Joel S. Marcus and Barbara A. Marcus Family Trust
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 P Indirect Held by the Joel S. Marcus and Barbara A. Marcus Family Trust
No 4 P Indirect Held by the Joel S. Marcus and Barbara A. Marcus Family Trust
Reported Non-Derivative Holdings
Sec. Name Remaning Holdings Nature of Ownership Explanation
Common Stock 908,355 Indirect See Footnote
Footnotes
  1. The shares were purchased at prices ranging from $28.95 to $29.35. The reporting person will provide upon request to the SEC, the issuer or any security holder of the issuer, full information regarding the number of shares purchased at each separate price.
  2. The shares were purchased at prices ranging from $29.97 to $30.00. The reporting person will provide upon request to the SEC, the issuer or any security holder of the issuer, full information regarding the number of shares purchased at each separate price.