5 insiders reported 10 Form 4 transactions for Xilio Therapeutics, Inc. (XLO) over the past 18 months (most recent 2026-03-30). Recent activity: Shannon James Samuel (Director) Buy 5,000 shares, Russo Rene (PRESIDENT AND CEO) Buy 44,250 shares, Luptakova Katarina (CHIEF MEDICAL OFFICER) Buy 16,625 shares, Brennan Kevin M. (SVP, FINANCE AND ACCOUNTING) Buy 5,000 shares, Brennan Kevin M. (SVP, FINANCE AND ACCOUNTING) Sell 1,826 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-30 | Shannon James Samuel | Director | Buy | 5,000 | $43,950 |
| 2026-01-05 | Russo Rene | PRESIDENT AND CEO | Buy | 44,250 | $0 |
| 2026-01-05 | Luptakova Katarina | CHIEF MEDICAL OFFICER | Buy | 16,625 | $0 |
| 2026-01-05 | Brennan Kevin M. | SVP, FINANCE AND ACCOUNTING | Buy | 5,000 | $0 |
| 2026-01-05 | Brennan Kevin M. | SVP, FINANCE AND ACCOUNTING | Sell | 1,826 | $0 |
| 2026-01-05 | Frankenfield Christopher James | Chief Financial Officer | Buy | 19,375 | $0 |
| 2026-01-05 | Frankenfield Christopher James | Chief Financial Officer | Sell | 7,030 | $0 |
| 2025-06-18 | Shannon James Samuel | Director | Buy | 45,000 | $0 |
| 2025-06-18 | Shannon James Samuel | Director | Buy | 25,000 | $0 |
| 2025-06-18 | Russo Rene | PRESIDENT AND CEO | Buy | 36,289 | $0 |
Source: SEC Form 4 filings · as of 2026-03-30