Question 1

How many shares of MRSN does MILLENNIUM MANAGEMENT LLC own?

Accepted Answer

MILLENNIUM MANAGEMENT LLC previously held 0 shares of MRSN (MERSANA THERAPEUTICS INC) before exiting the position in 2026-Q1.

Question 2

What is MILLENNIUM MANAGEMENT LLC's MRSN position worth?

Accepted Answer

MILLENNIUM MANAGEMENT LLC's MRSN position was last reported at $0 in 2026-Q1 before the exit.

Question 3

Is MILLENNIUM MANAGEMENT LLC buying or selling MRSN?

Accepted Answer

In 2026-Q1, MILLENNIUM MANAGEMENT LLC exited their MRSN position entirely (-100.0% change in shares).

Question 4

When did MILLENNIUM MANAGEMENT LLC first buy MRSN?

Accepted Answer

Based on available 13F filings, MILLENNIUM MANAGEMENT LLC first reported a position in MRSN in 2024-Q3. They have held the position across 30 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	63,305	-18.8%	$1.8M	0.0%	$28.65	0
2025-Q3	Decreased	77,989	-96.3%	$605,195	0.0%	$7.79	0
2025-Q2	New	2.1M	-	$618,710	0.0%	$7.28	34
2025-Q1	Exited	0	-100.0%	$0	0.0%	$9.49	0
2024-Q4	Increased	795,973	+206.4%	$1.1M	0.0%	$35.50	41
2024-Q3	Decreased	259,783	-62.5%	$490,990	0.0%	$46.25	0

MRSNShowing 7 of 30 quarters

MRSN
Showing 7 of 30 quarters