XLO — XILIO THERAPEUTICS INC
As of Q2 2026, 7 SEC-registered investment managers reported holding XLO (XILIO THERAPEUTICS INC) in their latest 13F filings, with a combined reported value of $2.01M across 209.43K shares. That is +13.3% by share count (+24.57K shares) versus the previous quarter, while reported value moved +29.1%. Ownership is concentrated: the five largest holders account for 95.8% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 3 opened new positions, 2 added to existing stakes, 2 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
XLO is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Point72 Asset Management history | Q4 2025 | 4.00M | $2.56M | 0.00% | New |
| Vanguard Group history | Q4 2025 | 1.26M | $803.64K | 0.00% | Hold |
| Renaissance Technologies history | Q2 2026 | 64.15K | $614.59K | 0.00% | Add |
| Morgan Stanley history | Q2 2026 | 56.95K | $545.62K | 0.00% | Reduce |
| Davidson Kempner Capital Management history | Q4 2021 | 29.00K | $458.00K | 0.01% | New |
| Geode Capital Management history | Q2 2026 | 39.05K | $374.17K | 0.00% | Add |
| Marshall Wace history | Q4 2021 | 20.19K | $324.00K | 0.00% | New |
| Fidelity Management & Research (FMR) history | Q1 2026 | 36.56K | $307.45K | 0.00% | Reduce |
| Citadel Advisors history | Q2 2026 | 25.95K | $248.60K | 0.00% | New |
| Fidelity International (FIL) history | Q4 2024 | 218.71K | $208.86K | 0.00% | Hold |
| Balyasny Asset Management history | Q3 2025 | 198.86K | $167.58K | 0.00% | Hold |
| BNY Mellon history | Q1 2022 | 21.03K | $149.00K | 0.00% | Add |
| Two Sigma Investments history | Q2 2026 | 14.54K | $139.33K | 0.00% | New |
| BlackRock Inc history | Q2 2026 | 8.76K | $83.89K | 0.00% | New |
| Northern Trust Corp history | Q4 2025 | 66.61K | $42.64K | 0.00% | Hold |
| Millennium Management history | Q1 2025 | 51.11K | $37.02K | 0.00% | New |
| Deutsche Bank AG history | Q1 2022 | 4.03K | $28.00K | 0.00% | Reduce |
| Charles Schwab Investment Management history | Q2 2024 | 11.93K | $11.30K | 0.00% | Hold |
| Legal & General Investment Management America history | Q1 2022 | 698 | $5.00K | 0.00% | Hold |
| Harvard Management Company history | Q3 2023 | 416.06K | $878 | 0.10% | Hold |
New Positions (Q2 2026)
- Citadel Advisors 25.95K sh · $248.60K
- Two Sigma Investments 14.54K sh · $139.33K
- BlackRock Inc 8.76K sh · $83.89K
Fully Exited (vs previous quarter)
- Fidelity Management & Research (FMR) sold 36.56K sh · $307.45K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Renaissance Technologies | — | — | 75.30K | 28.50K | 37.10K | 18.80K | 20.30K | 20.70K | 209.70K | 249.45K | 295.00K | 266.30K | 296.62K | 177.70K | 164.20K | 204.70K | 344.42K | 49.57K | 64.15K |
| Morgan Stanley | 1.04K | 2.10K | 7.04K | 6.84K | 25.61K | 30.54K | 27.02K | 26.27K | 127.27K | 221.91K | 1.11M | 1.52M | 1.00M | 1.16M | 1.44M | 961.92K | 839.85K | 57.49K | 56.95K |
| Geode Capital Management | 134.19K | 141.71K | 83.59K | 83.59K | 84.73K | 84.73K | 84.73K | 84.83K | 84.83K | 84.83K | 182.85K | 338.19K | 358.42K | 379.02K | 369.66K | 328.97K | 328.97K | 37.20K | 39.05K |
| Citadel Advisors | — | — | — | — | — | 71.64K | 13.15K | — | 51.42K | — | — | — | 40.32K | — | — | — | 436.22K | — | 25.95K |
| Two Sigma Investments | — | — | — | — | — | — | — | — | — | — | — | 10.39K | 10.82K | 84.07K | 78.03K | 87.79K | 62.03K | — | 14.54K |
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | 75.62K | 76.09K | 74.70K | 2.04K | 2.04K | 2.04K | — | 8.76K |
| UBS Group AG | 3.98K | 964 | 2.81K | 201 | 201 | 201 | 201 | 201 | 201 | 201 | 201 | 15.73K | 249.40K | 163.10K | 239.97K | 13.65K | 203 | 4.04K | 14 |
| Point72 Asset Management | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4.00M | — | — |
| Fidelity Management & Research (FMR) | 2.57M | 2.59M | 2.52M | 2.22M | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 1.40M | 1.40M | 1.40M | 884.03K | 511.82K | 511.82K | 511.82K | 36.56K | — |
| Balyasny Asset Management | — | — | — | — | — | — | — | — | — | 338.54K | 272.49K | 272.49K | 343.23K | 254.35K | 198.86K | 198.86K | — | — | — |
| Bank of America Corp | 4.77K | 2.61K | — | — | 233.07K | 227.28K | 227.21K | 226.72K | 11 | — | 692 | 266 | 265 | 290 | 331 | 246 | 261 | — | — |
| Citigroup Inc | 2.19K | 323 | 67 | — | — | — | — | — | — | — | — | — | — | — | — | 258 | — | — | — |
| Northern Trust Corp | 63.03K | 63.57K | 12.90K | 12.90K | 12.90K | 16.90K | 17.80K | 17.80K | 17.80K | 17.80K | 39.21K | 39.21K | 39.21K | 66.61K | 66.61K | 66.61K | 66.61K | — | — |
| Vanguard Group | 424.22K | 416.39K | 419.17K | 891.53K | 890.35K | 890.35K | 890.35K | 890.35K | 902.53K | 902.53K | 902.53K | 902.53K | 902.53K | 1.14M | 1.15M | 1.26M | 1.26M | — | — |
| JPMorgan Chase & Co | 11.69K | 4.84K | 2.73K | 2.70K | 2.70K | 2.70K | 2.70K | 2.72K | 2.86K | 2.74K | 59 | 75 | 66 | 62 | — | — | — | — | — |
| Fidelity International (FIL) | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | 218.71K | — | — | — | — | — | — |
| Deutsche Bank AG | 4.51K | 4.03K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| BNY Mellon | 14.24K | 21.03K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Davidson Kempner Capital Management | 29.00K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Harvard Management Company | 416.06K | 416.06K | 416.06K | 416.06K | 416.06K | 416.06K | 416.06K | 416.06K | — | — | — | — | — | — | — | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details