ATARA BIOTHERAPEUTICS INC

Ticker: ATRA CUSIP: 046513206 Class: Common Stock

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 13,990 Value ($000) $253 Avg Close $14.93 Range $10.50 - $18.95

Q3 2025

Shares 22,060 Value ($000) $316 Avg Close $11.51 Range $7.54 - $14.90

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	13,990	$253	$14.93	$10.50 - $18.95
Q3 2025	22,060	$316	$11.51	$7.54 - $14.90