Atlas Venture Fund X, L.P. - Significant Ownership

Signature - Title
/s/ Ommer Chohan - By: Atlas Venture Associates X, L.P., its general partner, By: Atlas Venture Associates X, LLC, its general partner, By Ommer Chohan, CFO
Location
Cambridge, MA
Summary
This page shows a list of all the recent SCHEDULE 13D/G filings made by Atlas Venture Fund X, L.P..

Significant Ownership of Atlas Venture Fund X, L.P.

Sym Company Class Ownership Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
IRON DISC MEDICINE, INC. Common Stock, $0.0001 par value per share 3.1% $64.8M 1.08M Atlas Venture Fund X, L.P. Aug 13, 2025
IMAGENEBIO, INC. Common Stock, $0.001 par value per share 2.1% 242K Atlas Venture Fund X, L.P. Jul 25, 2025

Schedules 13D/G Reported by Atlas Venture Fund X, L.P.:

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.