Xilio TherapeuticsXLO
13F holders, Q3 2025 (September 30)36holders +1
4new positions
3sold out
1famous investor
$0.84avg. 13F price*
At the end of Q3 2025, 36 institutions reported holding Xilio Therapeutics Inc. (XLO) in their 13F filings, up 1 from Q2 2025. 4 opened new positions and 3 sold out. The largest holders were Gilead Sciences, Inc. ($7.7M), Bain Capital Life Sciences Investors, LLC ($3.8M) and Merck & Co., Inc. ($1.3M). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Xilio Therapeutics Inc.
- CUSIP
- 98422T100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $72K |
| Exits | 3 | $1.0M |
All 13F filers, Q2 2025 → Q3 2025: 496,902 shares bought and 2,240,249 shares sold, net −1,743,347 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 36 holders
| Gilead Sciences, Inc. | 0.43% | No change | 9,105,451 | $7.7M |
| Bain Capital Life Sciences Investors, LLC | 0.26% | No change | 4,566,817 | $3.8M |
| Merck & Co., Inc. | 0.55% | No change | 1,483,758 | $1.3M |
| Takeda Pharmaceutical Co. Ltd. | 7.59% | No change | 1,475,121 | $1.2M |
| Vanguard Group Inc. | 0.00% | Add +9.1% | 1,255,692 | $1.1M |
| Morgan Stanley | 0.00% | Reduce -33.4% | 961,917 | $811K |
| AJU IB Investment Co., Ltd. | 0.52% | No change | 667,742 | $596K |
| FMR LLC | 0.00% | No change | 511,820 | $431K |
| Geode Capital Management, LLC | 0.00% | Reduce -11.0% | 328,972 | $277K |
| Squarepoint Ops LLC | 0.00% | Add +39.6% | 328,794 | $277K |
| Trustees of Columbia University in the City of New York | 0.03% | No change | 249,635 | $210K |
| Renaissance Technologies | 0.00% | Add +24.7% | 204,700 | $173K |
| Balyasny Asset Management L.P. | 0.00% | No change | 198,859 | $168K |
| State Street Corp. | 0.00% | Add +277.7% | 163,890 | $138K |
| Two Sigma Investments, LP | 0.00% | Add +12.5% | 87,790 | $74K |
| XTX Topco Ltd | 0.00% | Add +119.0% | 76,045 | $64K |
| Northern Trust Corp. | 0.00% | No change | 66,609 | $56K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 56,081 | $47K |
| Two Sigma Securities, LLC | 0.00% | New | 32,130 | $27K |
| LPL Financial LLC | 0.00% | No change | 31,000 | $26K |
| Two Sigma Advisers, LP | 0.00% | New | 29,689 | $25K |
| Aptus Capital Advisors, LLC | 0.00% | No change | 25,000 | $21K |
| Mariner, LLC | 0.00% | No change | 25,000 | $21K |
| HRT Financial LP | 0.00% | New | 24,736 | $20K |
| SevenBridge Financial Group, LLC | 0.00% | No change | 25,000 | $19K |
| Raymond James Financial Inc. | 0.00% | No change | 18,761 | $16K |
| UBS Group AG | 0.00% | Reduce -94.3% | 13,652 | $12K |
| Dunhill Financial, LLC | 0.00% | No change | 10,274 | $9K |
| Investors Asset Management of Georgia Inc. /Ga/ | 0.00% | No change | 10,000 | $8K |
| Pinnacle Financial Group, LLC / IL | 0.00% | No change | 10,000 | $8K |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 3,300 | $3K |
| BlackRock, Inc. | 0.00% | No change | 2,037 | $2K |
| Key Financial Inc | 0.00% | No change | 830 | $691 |
| Private Wealth Management Group, LLC | 0.00% | No change | 310 | $262 |
| Citigroup Inc. | 0.00% | New | 258 | $217 |
| Bank of America Corp. | 0.00% | Reduce -25.7% | 246 | $207 |
"% of holder's portfolio" is XLO's weight in each manager's 13F, not the share of Xilio Therapeutics Inc. the manager owns.