BCLS II Investco, LP - Significant Ownership

Signature - Title
/s/ Adam Koppel - Adam Koppel, Partner of Bain Capital Life Sciences Investors, LLC
Location
Boston, MA
Summary
This page shows a list of all the recent SCHEDULE 13D/G filings made by BCLS II Investco, LP.

Significant Ownership of BCLS II Investco, LP

Sym Company Class Ownership Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
SLDB Solid Biosciences Inc. Common Stock, $0.001 par value per share 7.8% $238K 6.18M BCLS II Investco, LP Feb 19, 2025
NAMS NewAmsterdam Pharma Company N.V. Ordinary Shares, nominal value Euro 0.12 per share 4.7% $214M -$241M 5.38M -52.9% BCLS Fund III Investments, LP Dec 2, 2025
MRSN Mersana Therapeutics, Inc. Common Stock, par value $0.0001 per share 4% $1.54M 199K BCLS II Investco, LP Nov 12, 2025

Schedules 13D/G Reported by BCLS II Investco, LP:

Sym Target Class Ownership Change Current Shares Change Value Reporting name Form Report Period Date Filed
* An asterisk sign (*) next to the price indicates that the price is likely invalid.