SEC Form 4 · accession 0001209191-18-032073
Atara Biotherapeutics, Inc. · ATRA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Mitchall G. Clark
Officer — EVP & Chief R & QA Officer
Period of report
May 18, 2018
Accepted (ET)
May 21, 2018 · 6:32 pm EDT
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 | May 18, 2018 | S | 25,860 | $50.03 | D | 107,972 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Transaction pursuant to Rule 10b5-1 Plan adopted January 25, 2018.
- F2The price in Column 4 is a weighted average sale price. The prices actually received ranged from $50.00 to $50.10. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.