MRSN — MERSANA THERAPEUTICS INC

Ownership history in Rangeley Capital, LLC  ·  1 quarter on record

This page tracks every 13F SEC filing in which Rangeley Capital, LLC reported a position in MERSANA THERAPEUTICS INC (MRSN). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
1.37% (2025 Q4)
Avg. % of fund
1.37%
First filed
2025 Q4
Last filed
2025 Q4
Quarters held
1
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 INITIATED 57,098 — — 1.37% $1.7M —
% of Fund (quarterly)

Other funds also holding MRSN

As of 2025 Q4 — sorted by position size

Bain Capital Life Sciences Investors, LLC 3Y 7Y 0.77% Yakira Capital Management, Inc. 3Y 7Y 0.32% EQUITEC PROPRIETARY MARKETS, LLC 3Y 7Y 0.25% Rock Springs Capital Management LP 3Y 7Y 0.23% Knott David M Jr 3Y 0.2% Affinity Asset Advisors, LLC 3Y 0.16% EQUITEC PROPRIETARY MARKETS, LLC 3Y 7Y 0.09% DELTEC ASSET MANAGEMENT LLC 3Y 7Y 0.09% Lion Point Capital, LP 3Y 7Y 0.01% GABELLI FUNDS LLC 3Y 7Y 0.01%
← Back to Rangeley Capital, LLC Holdings