Question 1

How many shares of ATRA does UBS Group AG own?

Accepted Answer

As of 2026-Q2, UBS Group AG holds 3,979 shares of ATRA (ATARA BIOTHERAPEUTICS INC).

Question 2

What is UBS Group AG's ATRA position worth?

Accepted Answer

As of 2026-Q2, UBS Group AG's ATRA position is worth $45,679.

Question 3

Is UBS Group AG buying or selling ATRA?

Accepted Answer

In 2026-Q2, UBS Group AG decreased their ATRA position (-92.0% change in shares).

Question 4

When did UBS Group AG first buy ATRA?

Accepted Answer

Based on available 13F filings, UBS Group AG first reported a position in ATRA in 2024-Q2. They have held the position across 9 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	3,979	-92.0%	$45,679	0.0%	$11.48	0
2026-Q1	Increased	50,070	+3484.1%	$236,831	0.0%	$5.42	25
2025-Q4	Decreased	1,397	-91.9%	$25,271	0.0%	$17.88	0
2025-Q3	Increased	17,268	+105.9%	$247,451	0.0%	$13.81	25
2025-Q2	Decreased	8,385	-65.5%	$64,732	0.0%	$7.96	0
2025-Q1	Increased	24,334	+2817.8%	$144,544	0.0%	$6.53	25
2024-Q4	Increased	834	+107.5%	$11,101	0.0%	$13.28	19
2024-Q3	Decreased	402	-0.3%	$3,268	0.0%	$8.07	0
2024-Q2	New	403	-	$3,426	0.0%	$8.50	21

ATRA9 quarters

ATRA
9 quarters