Porter Derrell 4
4 · Atara Biotherapeutics, Inc. · Filed Feb 8, 2019
Insider Transaction Report
Form 4
Porter Derrell
SVP, Head of Global Commercial
Transactions
- Award
Employee Stock Option (Right to Buy)
2019-02-06+24,625→ 24,625 totalExercise: $38.47Exp: 2029-02-05→ Common Stock (24,625 underlying) - Award
Common Stock
2019-02-06−12,313→ 23,597 total - Tax Payment
Common Stock
2019-02-06$38.47/sh−1,216$46,780→ 11,284 total
Footnotes (3)
- [F1]Shares withheld to cover tax obligation from settlement of vested restricted stock units.
- [F2]These restricted stock units vest in four equal annual installments on each of the first, second, third and fourth anniversaries of the grant date, subject to the reporting person's continuous service.
- [F3]1/48th of the shares subject to the stock option vest and become exercisable each month following February 6, 2019, subject to the reporting person's continuous service.