Xilio Therapeutics, Inc. (XLO)
NASDAQ: XLO · Real-Time Price · USD
8.85
-0.04 (-0.45%)
At close: Jun 26, 2026, 4:00 PM EDT
9.05
+0.20 (2.26%)
After-hours: Jun 26, 2026, 4:10 PM EDT
Company Description
Xilio Therapeutics, Inc., a clinical-stage biotechnology company, engages in the discovery and development of masked immuno-oncology therapies.
The company’s pipeline includes XTX501, a bispecific PD-1 / masked IL-2, for patients with metastatic non-small cell lung cancer; Efarindodekin alfa, an investigational, masked IL-12, that is in Phase 2 clinical trial for patients with advanced solid tumors; and Vilastobart, an investigational tumor-activated, Fc-enhanced, high affinity binding anti-CTLA-4 monoclonal antibody.
The company was founded in 2016 and is headquartered in Waltham, Massachusetts.
Xilio Therapeutics, Inc.
| Country | United States |
| Founded | 2016 |
| IPO Date | Oct 22, 2021 |
| Industry | Biotechnology |
| Sector | Healthcare |
| Employees | 76 |
| CEO | Rene Russo |
Contact Details
Address: 828 Winter Street, Suite 300 Waltham, Massachusetts 02451 United States | |
| Phone | 857 524 2466 |
| Website | xiliotx.com |
Stock Details
| Ticker Symbol | XLO |
| Exchange | NASDAQ |
| Stock Type | Common Stock |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| IPO Price | $16.00 |
| CIK Code | 0001840233 |
| CUSIP Number | 98422T209 |
| ISIN Number | US98422T2096 |
| Employer ID | 85-1623397 |
| SIC Code | 2834 |
Key Executives
| Name | Position |
|---|---|
| Dr. Rene Russo BCPS, Pharm.D. | President, Chief Executive Officer and Director |
| Christopher Frankenfield | Chief Financial Officer and Chief Operating Officer |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Jun 12, 2026 | 8-K | Current Report |
| May 29, 2026 | EFFECT | Notice of Effectiveness |
| May 27, 2026 | S-3/A | [Amend] Registration statement under Securities Act of 1933 |
| May 15, 2026 | SCHEDULE 13G | Filing |
| May 15, 2026 | SCHEDULE 13G/A | Filing |
| May 15, 2026 | SCHEDULE 13G/A | Filing |
| May 15, 2026 | SCHEDULE 13G | Filing |
| May 12, 2026 | S-3 | Registration statement under Securities Act of 1933 |
| May 12, 2026 | 10-Q | Quarterly Report |
| May 12, 2026 | 8-K | Current Report |