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Atlas Venture Advisors, Inc.

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13F filer, CIK 1767432, BOSTON, MA

Atlas Venture Advisors, Inc. reported $191,564,876 across 3 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-01-29.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001104659-26-007932

Period
2025-12-31
Reported value
$192M
Holdings
3
Top 10 weight
100%
New
0
Sold out
1

Part of the filer group Atlas Venture Advisors, Inc.

How groups are built

Largest buys vs the previous quarter

None.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
INTEGRAL AD SCIENCE HLDNG COexited-22,722,770-$231M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q4 2025

Share positions as resolved from 13F-HR 0001104659-26-007932, largest first. % of portfolio is the value over $191,564,876, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
DKNGDRAFTKINGS INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,894,409 shares; 2024Q4: 5,894,409 shares; 2025Q1: 5,319,866 shares; 2025Q2: 5,319,866 shares; 2025Q3: 5,319,866 shares; 2025Q4: 5,319,866 shares 5,319,866$183M95.7%0Timeline
ROKUROKU INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 57,707 shares; 2024Q4: 57,707 shares; 2025Q1: 57,707 shares; 2025Q2: 57,707 shares; 2025Q3: 57,707 shares; 2025Q4: 57,707 shares 57,707$6.26M3.27%0Timeline
SNAPSNAP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 245,559 shares; 2024Q4: 245,559 shares; 2025Q1: 245,559 shares; 2025Q2: 245,559 shares; 2025Q3: 245,559 shares; 2025Q4: 245,559 shares 245,559$1.98M1.03%0Timeline

Sold out in Q4 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
INTEGRAL AD SCIENCE HLDNG COINTEGRAL AD SCIENCE HLDNG CO22,722,770$231Mshares

How Q4 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001104659-26-007932 base2026-01-29acceptance time not in the bulk data set