Question 1

How many shares of XOMA does GROUP ONE TRADING LLC own?

Accepted Answer

As of 2026-Q2, GROUP ONE TRADING LLC holds 2,139 shares of XOMA (XOMA ROYALTY CORPORATION).

Question 2

What is GROUP ONE TRADING LLC's XOMA position worth?

Accepted Answer

As of 2026-Q2, GROUP ONE TRADING LLC's XOMA position is worth $90,908.

Question 3

Is GROUP ONE TRADING LLC buying or selling XOMA?

Accepted Answer

In 2026-Q2, GROUP ONE TRADING LLC opened a new position in XOMA.

Question 4

When did GROUP ONE TRADING LLC first buy XOMA?

Accepted Answer

Based on available 13F filings, GROUP ONE TRADING LLC first reported a position in XOMA in 2024-Q3. They have held the position across 25 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	New	2,139	—	$90,908	0.0%	$42.50	30
2025-Q3	Exited	0	-100.0%	$0	0.0%	$37.20	0
2025-Q2	Unchanged	900	0.0%	$22,680	0.0%	$27.49	0
2025-Q1	Increased	900	+125.0%	$17,937	0.0%	$20.33	30
2024-Q4	Unchanged	400	0.0%	$10,512	0.0%	$26.09	0
2024-Q3	Decreased	400	-20.0%	$10,592	0.0%	$26.00	0