Atlas Venture Advisors, Inc.
In its 13F for Q3 2025 (holdings as of September 30, 2025, filed October 30, 2025), Atlas Venture Advisors, Inc. reported 4 stock positions worth $437.7 million. Its top holding was Integral Ad Science (IAS) at 52.8% of the portfolio, followed by Draftkings Class A (DKNG, 45.5%) and Roku (ROKU, 1.3%). Its holdings were unchanged from Q2 2025.
- Most Recent 13F
- Q2 2026
- Location
- BOSTON, MA
- CIK
- 0001767432
- Portfolio Value
- $437.7M (Q3 2025)
- SEC Filing
- 0001104659-25-104152 ↗ filed Oct 30, 2025
Holdings Value
Holdings 4 stocks · $437.7M
Portfolio Sells Q2 2025 → Q3 2025
| None this quarter. | |||
Portfolio Buys Q2 2025 → Q3 2025
| None this quarter. | |||
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 3 | $143.4M | DKNG, ROKU, SNAP |
| Q1 2026 | 3 | $121.6M | DKNG, ROKU, SNAP |
| Q4 2025 | 3 | $191.6M | DKNG, ROKU, SNAP |
| Q3 2025 | 4 | $437.7M | IAS, DKNG, ROKU, SNAP |
| Q2 2025 | 4 | $424.2M | DKNG, IAS, ROKU, SNAP |
| Q1 2025 | 4 | $366.0M | IAS, DKNG, ROKU, SNAP |
| Q4 2024 | 4 | $463.4M | IAS, DKNG, ROKU, SNAP |
| Q3 2024 | 5 | $484.4M | IAS, DKNG, ROKU, SNAP, LRMR |
| Q2 2024 | 5 | $454.6M | DKNG, IAS, SNAP, ROKU, LRMR |
| Q1 2024 | 5 | $502.6M | DKNG, IAS, ROKU, SNAP, LRMR |