HEIDEN WILLIAM K bought ATRA
June 9, 2026 · Form 4 insider transaction
HEIDEN WILLIAM K bought 12,000 shares of Atara Biotherapeutics, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
12,000
Price
$0.00
Total value
N/A
InsiderHEIDEN WILLIAM K
Role—
SecurityCommon Stock
Transaction codeA: Grant or award
Transaction dateJune 9, 2026
Filing dateJune 11, 2026
Shares owned after34,188
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
These restricted stock units shall vest on the earlier of June 9, 2027 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.