Form4insider filings, from the source

SEC Form 4 · accession 0001209191-15-067010

Atara Biotherapeutics, Inc. · ATRA

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Period of report
Aug 17, 2015
Accepted (ET)
Aug 19, 2015 · 8:24 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001604464

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1Aug 17, 2015M1,603$0.00A9,081D

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Restricted Stock UnitsF2,F3,F4—Aug 17, 2015M1,603D——Common Stock1,60316,559D

Explanation of responses