Filed: 10/30/2025ACC: 0001104659-25-104152
📋 What this filing means
ATLAS VENTURE ADVISORS, INC. filed this quarterly 13F‑HR report disclosing 4 equity positions with a total reported market value of $437.73M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
4
Positions
$437.73M
Total AUM (reported)
28.35M
Total Shares
Allocation by class
COM$231.09M52.8%
COM CL A$204.74M46.8%
CL A$1.89M0.4%
Portfolio Concentration
Top 3$435.83M99.6%
4–10$1.89M0.4%
Top 3 weight
99.6%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 28.35M
Sole
Full voting authority
28.10M
shares
% of voting shares99.1%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
245.56K
shares
% of voting shares0.9%
Investment Discretion (by position count)
Sole4
Shared0
Other0
Dominant voting typeSole · 99.1% of voting shares
Institutional Holdings4
Rows:
INTEGRAL AD SCIENCE HLDNG CO
SOLEShares22.72M
TypeSH
Market value$231.09M
52.79%
Sole
22.72M
Shared
0.00
None
0.00
DRAFTKINGS INC
SOLEShares5.32M
TypeSH
Market value$198.96M
45.45%
Sole
5.32M
Shared
0.00
None
0.00
ROKU INC
SOLEShares57.71K
TypeSH
Market value$5.78M
1.32%
Sole
57.71K
Shared
0.00
None
0.00
SNAP INC
SOLEShares245.56K
TypeSH
Market value$1.89M
0.43%
Sole
0.00
Shared
0.00
None
245.56K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
INTEGRAL AD SCIENCE HLDNG COSOLE | COM | 22.72M | SH | $231.09M 52.79% | 22.72M | 0.00 | 0.00 |
DRAFTKINGS INCSOLE | COM CL A | 5.32M | SH | $198.96M 45.45% | 5.32M | 0.00 | 0.00 |
ROKU INCSOLE | COM CL A | 57.71K | SH | $5.78M 1.32% | 57.71K | 0.00 | 0.00 |
SNAP INCSOLE | CL A | 245.56K | SH | $1.89M 0.43% | 0.00 | 0.00 | 245.56K |