SEC Form 4 · accession 0001209191-16-106236
Atara Biotherapeutics, Inc. · ATRA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Heather D Turner
Officer — VP, General Counsel & Sec.
Period of report
Aug 3, 2015
Accepted (ET)
Mar 4, 2016 · 6:59 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001604464
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Employee Stock Option (Right to Buy)F1 | $56.98 | Aug 3, 2015 | A | 130,000 | A | — | Aug 3, 2022 | Common Stock | 130,000 | 130,000 | D |
Explanation of responses
- F125% of the shares subject to the option vest and become exercisable on July 6, 2016 and 1/48th of the shares subject to the stock option vest and become exercisable each full month thereafter.