Question 1

How many shares of MRSN does STATE STREET CORP own?

Accepted Answer

STATE STREET CORP previously held 0 shares of MRSN (MERSANA THERAPEUTICS INC) before exiting the position in 2026-Q1.

Question 2

What is STATE STREET CORP's MRSN position worth?

Accepted Answer

STATE STREET CORP's MRSN position was last reported at $0 in 2026-Q1 before the exit.

Question 3

Is STATE STREET CORP buying or selling MRSN?

Accepted Answer

In 2026-Q1, STATE STREET CORP exited their MRSN position entirely (-100.0% change in shares).

Question 4

When did STATE STREET CORP first buy MRSN?

Accepted Answer

Based on available 13F filings, STATE STREET CORP first reported a position in MRSN in 2024-Q3. They have held the position across 10 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Exited	0	-100.0%	$0	0.0%	$29.08	0
2025-Q4	Decreased	19,543	-34.5%	$565,379	0.0%	$28.65	0
2025-Q3	Decreased	29,843	-93.4%	$231,582	0.0%	$7.79	0
2025-Q2	Decreased	452,110	-82.6%	$133,825	0.0%	$7.28	0
2025-Q1	Decreased	2.6M	-5.8%	$896,251	0.0%	$9.49	0
2024-Q4	Increased	2.8M	+1.4%	$4M	0.0%	$35.50	27
2024-Q3	Increased	2.7M	+1.6%	$5.2M	0.0%	$46.25	27

MRSNShowing 7 of 10 quarters

MRSN
Showing 7 of 10 quarters