Question 1

Does Renaissance Technologies own CABA stock?

Accepted Answer

Yes. As of its Q2 2026 13F, Renaissance Technologies holds 1,535,300 shares of CABA (Cabaletta Bio), worth $4.8M.

Question 2

How many shares of CABA does Renaissance Technologies own?

Accepted Answer

As of its Q2 2026 13F, Renaissance Technologies holds 1,535,300 shares of CABA (Cabaletta Bio).

Question 3

What is Renaissance Technologies' CABA position worth?

Accepted Answer

As of its Q2 2026 13F, Renaissance Technologies' CABA position is worth $4.8M.

Question 4

Is Renaissance Technologies buying or selling CABA?

Accepted Answer

In Q2 2026, Renaissance Technologies reduced its CABA position by 501,363 shares (-24.6%).

Question 5

When did Renaissance Technologies first buy CABA?

Accepted Answer

Renaissance Technologies first reported CABA in its Q1 2020 13F and has listed it in 17 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	1.5M	-24.6%	$4.8M	0.0%	$3.11	0
2026-Q1	Increased	2M	+33.8%	$5.5M	0.0%	$2.69	35
2025-Q4	Increased	1.5M	+13.7%	$3.3M	0.0%	$2.19	30
2025-Q3	Increased	1.3M	+962.2%	$3.1M	0.0%	$2.34	43
2025-Q2	Increased	126,100	+1056.9%	$191,672	0.0%	$1.52	37
2025-Q1	Decreased	10,900	-95.3%	$15,097	0.0%	$1.39	0
2024-Q4	New	230,161	—	$522,465	0.0%	$2.27	33