Senior insider sale
Chief Accounting Officer at ATARA BIOTHERAPEUTICS, INC. — senior position signals high conviction
$39.6K
4.86K shares
What this filing means
GRANT-HUERTA YANINA plans to sell 4.86K shares of ATARA BIOTHERAPEUTICS, INC. valued at approximately $39.6K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 5/18/2026ACC: 0000905148-26-002506
Officer· Chief Accounting Officer
Since Mar 2026
4.86K
Shares to sell
$39.6K
Approx. market value
6.39K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
Settlement of vested RSUs issued under an S-8 Registration Plan
Equity compensation for services rendered
5/15/2026
6.39KTotal acquired6.39K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
5/15/2026 | Settlement of vested RSUs issued under an S-8 Registration Plan Equity compensation for services rendered | 6.39K | — |
| Total | 6.39K | ||
Planned & Completed Dispositions2
Completed
—Completed
Units to sell
2.10K
Market value
$10.7K
3/2/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
2.75K
Market value
$28.9K
5/18/2026
Total
Units
4.86K
Value
$39.6K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
3/2/2026 | 2.10K | $10.7K | — | Completed |
| Planned — Approximate Date | ||||
5/18/2026 | 2.75K | $28.9K | NASDAQ | Planned |
| Total | 4.86K | $39.6K | ||