GRANT-HUERTA YANINA

PrivateCIK: 2064348
Location

THOUSAND OAKS, CA

GRANT-HUERTA YANINA (Chief Accounting Officer) sold 5.1% of their position (1.80K shares) of ATARA BIOTHERAPEUTICS, INC. on the open market

Open‑market sale worth $23.8K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderGRANT-HUERTA YANINACIK 2064348
Officer· Chief Accounting Officer
Since Mar 2026
-1.80K
Net shares
Net seller
$23.8K
Total sold
3
Open market trades
0B · 3S
3
Total transactions
1.80K disposed
Non-Derivative Transactions3

Common Stock

Direct
S · Sale

Shares

1.65K

Price / share

$13.19

Trade value

$21.69K

% of position

4.7%
11/17/2025
35.26K33.61K

Common Stock

Direct
S · Sale

Shares

85.00

Price / share

$13.19

Trade value

$1.12K

% of position

0.3%
11/17/2025
33.61K33.53K

Common Stock

Direct
S · Sale

Shares

74.00

Price / share

$13.19

Trade value

$976.13

% of position

0.2%
11/17/2025
33.53K33.45K
Total

Net shares

1.80K

Net value

-$23.79K

Derivative Transactions0
No derivative transactions reported
GRANT-HUERTA YANINA — Insider Transaction (Form 4) Filed Nov 19, 2025 | Finecho