Question 1

Does Comerica Bank own RMBS stock?

Accepted Answer

As of its last 13F, for Q4 2025, Comerica Bank held 30,625 shares of RMBS (Rambus), worth $2.8M.

Question 2

How many shares of RMBS does Comerica Bank own?

Accepted Answer

As of its last 13F, for Q4 2025, Comerica Bank held 30,625 shares of RMBS (Rambus).

Question 3

What is Comerica Bank's RMBS position worth?

Accepted Answer

As of its last 13F, for Q4 2025, Comerica Bank's RMBS position was worth $2.8M.

Question 4

Is Comerica Bank buying or selling RMBS?

Accepted Answer

In Q4 2025, Comerica Bank reduced its RMBS position by 25,265 shares (-45.2%).

Question 5

When did Comerica Bank first buy RMBS?

Accepted Answer

Comerica Bank already held RMBS in its Q4 2018 13F, the earliest on record, and listed it in 28 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2025-Q4 Latest	Decreased	30,625	-45.2%	$2.8M	0.0%	$91.89	0
2025-Q3	Decreased	55,890	-33.3%	$5.8M	0.0%	$104.20	0
2025-Q2	Decreased	83,759	-17.1%	$5.4M	0.0%	$64.02	0
2025-Q1	Decreased	101,012	-16.3%	$5.2M	0.0%	$51.78	0
2024-Q4	Increased	120,657	+21.9%	$6.4M	0.0%	$52.86	33
2024-Q3	Increased	99,010	+24.6%	$4.2M	0.0%	$42.22	33