Question 1

Does Janus Henderson Group own CMPX stock?

Accepted Answer

Yes. As of its Q1 2026 13F, Janus Henderson Group holds 55,600 shares of CMPX (Compass Therapeutics), worth $293,846.

Question 2

How many shares of CMPX does Janus Henderson Group own?

Accepted Answer

As of its Q1 2026 13F, Janus Henderson Group holds 55,600 shares of CMPX (Compass Therapeutics).

Question 3

What is Janus Henderson Group's CMPX position worth?

Accepted Answer

As of its Q1 2026 13F, Janus Henderson Group's CMPX position is worth $293,846.

Question 4

Is Janus Henderson Group buying or selling CMPX?

Accepted Answer

In Q1 2026, Janus Henderson Group opened a new CMPX position of 55,600 shares.

Question 5

When did Janus Henderson Group first buy CMPX?

Accepted Answer

Janus Henderson Group first reported CMPX in its Q4 2021 13F and has listed it in 13 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	New	55,600	—	$293,846	0.0%	$5.29	32
2024-Q4	Exited	0	-100.0%	$0	0.0%	$1.45	0
2024-Q3	Decreased	1.8M	-64.7%	$3.4M	0.0%	$1.88	0