LMR Partners LLP

SEC CIK: 0001578621
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

MRSN holding history

Mersana Therapeutics, Inc. in every 13F filed by LMR Partners LLP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MRSN overview All 13F holders of MRSN Full Q2 2026 holdings

Shares (Q1 2023): 0; Sold out in Q1 2023
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q3 2022

Holdings of MRSN by LMR Partners LLP, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q1 2023	0	$0	0.0%	−500,000−100.0%	Sold out	Holders
Q4 2022	500,000	$2.93M	0.1%	+350,000+233.3%	Added	Holders
Q3 2022	150,000	$1.01M	<0.1%	+150,000	New	Holders