Question 1

Does Vanguard Group own CMPX stock?

Accepted Answer

As of its last 13F, for Q4 2025, Vanguard Group held 8,048,374 shares of CMPX (Compass Therapeutics), worth $43.2M.

Question 2

How many shares of CMPX does Vanguard Group own?

Accepted Answer

As of its last 13F, for Q4 2025, Vanguard Group held 8,048,374 shares of CMPX (Compass Therapeutics).

Question 3

What is Vanguard Group's CMPX position worth?

Accepted Answer

As of its last 13F, for Q4 2025, Vanguard Group's CMPX position was worth $43.2M.

Question 4

Is Vanguard Group buying or selling CMPX?

Accepted Answer

In Q4 2025, Vanguard Group increased its CMPX position by 985,575 shares (+14.0%).

Question 5

When did Vanguard Group first buy CMPX?

Accepted Answer

Vanguard Group already held CMPX in its Q3 2024 13F, the earliest on record, and listed it in 6 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2025-Q4 Latest	Increased	8M	+13.9%	$43.2M	0.0%	$5.38	33
2025-Q3	Increased	7.1M	+45.6%	$24.7M	0.0%	$3.82	39
2025-Q2	Increased	4.9M	+0.3%	$12.6M	0.0%	$2.56	28
2025-Q1	Increased	4.8M	+2.5%	$9.2M	0.0%	$1.99	28
2024-Q4	Increased	4.7M	+10.2%	$6.8M	0.0%	$1.48	30
2024-Q3	First report	4.3M	-	$7.9M	0.0%	$1.88	0

CMPX6 quarters

CMPX
6 quarters