Form4insider filings, from the source

SEC Form 4 · accession 0001209191-15-044665

Atara Biotherapeutics, Inc. · ATRA

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

Reporting owner
Period of report
May 15, 2015
Accepted (ET)
May 19, 2015 · 6:59 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 StockF1May 15, 2015M7,478$0.00A7,478D

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Restricted Stock UnitsF2,F3,F4—May 15, 2015M7,478D——Common Stock7,47818,162D

Explanation of responses