SEC Form 4/A · accession 0001209191-19-009507
Atara Biotherapeutics, Inc. · ATRA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
This is an amendment (Form 4/A). It replaces an earlier filing for the same period.
Reporting owner
Isaac E. Ciechanover
Officer — Chief Executive Officer · Director
Period of report
Feb 6, 2019
Accepted (ET)
Feb 12, 2019 · 7:17 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001604464
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF2 | Feb 6, 2019 | F | 24,683 | $38.47 | D | 375,611 | D | |
| Common StockF3 | holding | — | — | — | 329,269 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Shares withheld to cover tax obligation from settlement of vested restricted stock units.
- F2Filed solely to state the price which was inadvertently omitted.
- F3Shares are held by the Isaac E. Ciechanover and Allison M. Ciechanover Family Trust dated 8/8/08, of which the Reporting Person is a trustee.