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

Signature - Title
/s/ Frank Castellucci - General Counsel and Secretary of General Partner of General Partner
Location
Boston, MA
Summary
This page shows a list of all the recent SCHEDULE 13D/G filings made by Atlas Venture Fund VIII, L.P..

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

Sym Company Class Ownership Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
IAS INTEGRAL AD SCIENCE HOLDING CORP. Common Stock, $0.001 0% $0 0 Atlas Venture Fund VIII, L.P. 23 Dec 2025

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

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