Question 1

Does Citadel Advisors own CLGN stock?

Accepted Answer

Yes. As of its Q2 2026 13F, Citadel Advisors holds 53,700 shares of CLGN (CollPlant Biotechnologies), worth $18,736.

Question 2

How many shares of CLGN does Citadel Advisors own?

Accepted Answer

As of its Q2 2026 13F, Citadel Advisors holds 53,700 shares of CLGN (CollPlant Biotechnologies).

Question 3

What is Citadel Advisors' CLGN position worth?

Accepted Answer

As of its Q2 2026 13F, Citadel Advisors' CLGN position is worth $18,736.

Question 4

Is Citadel Advisors buying or selling CLGN?

Accepted Answer

In Q2 2026, Citadel Advisors increased its CLGN position by 21,535 shares (+67.0%).

Question 5

When did Citadel Advisors first buy CLGN?

Accepted Answer

Citadel Advisors first reported CLGN in its Q2 2021 13F and has listed it in 5 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	53,700	+67.0%	$18,736	0.0%	$3.49	19
2026-Q1	New	32,165	—	$17,211	0.0%	$5.36	28