Question 1

Does Renaissance Technologies own KLRS stock?

Accepted Answer

Yes. As of its Q2 2026 13F, Renaissance Technologies holds 149,351 shares of KLRS (Kalaris Therapeutics), worth $607,859.

Question 2

How many shares of KLRS does Renaissance Technologies own?

Accepted Answer

As of its Q2 2026 13F, Renaissance Technologies holds 149,351 shares of KLRS (Kalaris Therapeutics).

Question 3

What is Renaissance Technologies' KLRS position worth?

Accepted Answer

As of its Q2 2026 13F, Renaissance Technologies' KLRS position is worth $607,859.

Question 4

Is Renaissance Technologies buying or selling KLRS?

Accepted Answer

In Q2 2026, Renaissance Technologies increased its KLRS position by 83,200 shares (+125.8%).

Question 5

When did Renaissance Technologies first buy KLRS?

Accepted Answer

Renaissance Technologies already held KLRS in its Q1 2025 13F, the earliest on record, and has listed it in 6 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	149,351	+125.8%	$607,859	0.0%	$4.07	39
2026-Q1	Decreased	66,151	-24.6%	$381,691	0.0%	$9.42	0
2025-Q4	Decreased	87,751	-22.2%	$740,618	0.0%	$8.38	0
2025-Q3	Increased	112,751	+16.5%	$651,701	0.0%	$6.35	28
2025-Q2	Increased	96,751	+402.6%	$258,325	0.0%	$2.62	37
2025-Q1	New	19,251	-	$154,586	0.0%	$8.60	31

KLRS6 quarters

KLRS
6 quarters