Insider txns (12m)
79
Stock / equity
XLO Xilio Therapeutics, Inc.
- Company
- Xilio Therapeutics, Inc.
- Security
- Equity
- Size, estimated from filings
- Micro cap (under $300M)
- Insiders on record
- 14
- Latest trade on record
- October 1, 2026
XLO (Xilio Therapeutics, Inc.) has 79 disclosed insider transactions from 14 insiders in the last 12 months (2 open-market buys, 2 sales, about $12.0M at reported prices) and 0 congressional trades from 0 members of Congress. The most recent disclosure was filed October 2, 2026.
Open-market buys / sales
2 / 2
Congress trades (12m)
0
Distinct filers (12m)
14
Share price
Price and chart by TradingView for Xilio Therapeutics, Inc.. US share prices here are delayed, not real-time. The trade records on this page come from government filings, not from this chart.
XLO in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
3 people account for the disclosed buying and selling in XLO over the last 12 months; the most active is Shannon James Samuel with $44K.
Prices insiders traded at
What price did insiders buy and sell at? Each marker is one open-market trade at the share price reported on its Form 4.
▲ Bought▼ SoldAverage reported price that day
Insiders reported 3 open-market trades in XLO since Jan 2, 2026, at prices from $0.64 to $8.79; the most recent was a purchase at $8.79 on Mar 26, 2026. These are the prices on the filings, not adjusted for stock splits, and not a market price series.
Insiders trading XLO
Everyone who filed a Form 4 for this ticker, by number of rows on record. "Bought" and "sold" count open-market purchases (code P) and sales only; awards, option exercises and shares withheld for tax are in the row count but not in those two columns.
| Insider | Role | Rows | Bought | Sold | Value bought | Value sold | Latest |
|---|---|---|---|---|---|---|---|
| Frankenfield Christopher James | Chief Financial Officer | 21 | 0 | 1 | — | $4,522 | January 2, 2026 |
| Russo Rene | PRESIDENT AND CEO | 20 | 0 | 0 | — | — | January 1, 2026 |
| Luptakova Katarina | CHIEF MEDICAL OFFICER | 14 | 0 | 0 | — | — | January 1, 2026 |
| Brennan Kevin M. | SVP, FINANCE AND ACCOUNTING | 11 | 0 | 1 | — | $1,174 | January 2, 2026 |
| GILEAD SCIENCES, INC. | Insider | 3 | 0 | 0 | — | — | February 13, 2026 |
| Shannon James Samuel | Director | 2 | 1 | 0 | $44K | — | June 11, 2026 |
| Houvras Yariv | CHIEF MEDICAL OFFICER | 1 | 0 | 0 | — | — | October 1, 2026 |
| Bello Akintunde Olatokumbo | Director | 1 | 0 | 0 | — | — | June 11, 2026 |
| Bonstein Sara | Chief Financial Officer | 1 | 0 | 0 | — | — | June 11, 2026 |
| Brennan Aoife | Director | 1 | 0 | 0 | — | — | June 11, 2026 |
| Curran Daniel J. | Director | 1 | 0 | 0 | — | — | June 11, 2026 |
| ROSS ROBERT W. | Director | 1 | 0 | 0 | — | — | June 11, 2026 |
| Xu Yuan | Director | 1 | 0 | 0 | — | — | June 11, 2026 |
| Blanchard Cheryl R | Director | 1 | 0 | 0 | — | — | April 15, 2026 |
What kind of transactions these are 6 Form 4 codes
| Code | Meaning | Rows | Shares | Value at reported prices |
|---|---|---|---|---|
| A | Grant or award | 41 | 9,994,447 | — |
| D | Sale back to the company | 24 | 3,371,594 | — |
| M | Option exercise or conversion | 8 | 170,500 | — |
| P | Open-market purchase | 2 | 3,744,000 | $2.0M |
| S | Open-market sale | 2 | 8,856 | $5,696 |
| X | Exercise of an in-the-money option | 2 | 26,670,000 | $10.0M |
What each code means: Form 4 transaction codes.
Insider transactions
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Houvras Yariv | Other A | October 1, 2026 | October 2, 2026 | 1d | 105,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Aoife | Other A | June 11, 2026 | June 12, 2026 | 1d | 5,000 | — | — | derivative | Form 4 ↗ | |
| Bonstein Sara | Other A | June 11, 2026 | June 12, 2026 | 1d | 5,000 | — | — | derivative | Form 4 ↗ | |
| ROSS ROBERT W. | Other A | June 11, 2026 | June 12, 2026 | 1d | 5,000 | — | — | derivative | Form 4 ↗ | |
| Xu Yuan | Other A | June 11, 2026 | June 12, 2026 | 1d | 5,000 | — | — | derivative | Form 4 ↗ | |
| Curran Daniel J. | Other A | June 11, 2026 | June 12, 2026 | 1d | 5,000 | — | — | derivative | Form 4 ↗ | |
| Shannon James Samuel | Other A | June 11, 2026 | June 12, 2026 | 1d | 5,000 | — | — | derivative | Form 4 ↗ | |
| Bello Akintunde Olatokumbo | Other A | June 11, 2026 | June 12, 2026 | 1d | 5,000 | — | — | derivative | Form 4 ↗ | |
| Blanchard Cheryl R | Other A | April 15, 2026 | April 16, 2026 | 1d | 10,000 | — | — | derivative | Form 4 ↗ | |
| Shannon James Samuel | Buy P | March 26, 2026 | March 30, 2026 | 4d | 5,000 | $9 | $44K | Form 4 ↗ | ||
| GILEAD SCIENCES, INC. | Option / conversion P | February 13, 2026 | February 17, 2026 | 4d | 3,739,000 | $1 | $2.0M | derivative | Form 4 ↗ | |
| Luptakova Katarina | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 16,625 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Other A | December 31, 2025 | January 5, 2026 | 5d | 451,885 | — | — | latederivative | Form 4 ↗ | |
| Luptakova Katarina | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 16,625 | — | — | Form 4 ↗ | ||
| Brennan Kevin M. | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 5,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Brennan Kevin M. | Other A | December 31, 2025 | January 5, 2026 | 5d | 95,221 | — | — | late10b5-1 planderivative | Form 4 ↗ | |
| Brennan Kevin M. | Sell S | January 2, 2026 | January 5, 2026 | 3d | 1,826 | $1 | $1,174 | 10b5-1 plan | Form 4 ↗ | |
| Brennan Kevin M. | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 5,000 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 19,375 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | December 31, 2025 | January 5, 2026 | 5d | 668,789 | — | — | late10b5-1 planderivative | Form 4 ↗ | |
| Frankenfield Christopher James | Sell S | January 2, 2026 | January 5, 2026 | 3d | 7,030 | $1 | $4,522 | 10b5-1 plan | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 19,375 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Russo Rene | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 44,250 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | December 31, 2025 | January 5, 2026 | 5d | 1,500,258 | — | — | latederivative | Form 4 ↗ | |
| Russo Rene | Option / conversion M | January 1, 2026 | January 5, 2026 | 4d | 44,250 | — | — | Form 4 ↗ | ||
| GILEAD SCIENCES, INC. | Option / conversion X | November 26, 2025 | December 1, 2025 | 5d | 13,335,000 | — | — | latederivative | Form 4 ↗ | |
| GILEAD SCIENCES, INC. | Option / conversion X | November 26, 2025 | December 1, 2025 | 5d | 13,335,000 | $1 | $10.0M | latederivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 300,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 300,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 150,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 150,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 117,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 117,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 20,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 20,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 45,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 45,000 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 37,296 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 37,296 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 23,786 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 23,786 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 155,090 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 155,090 | — | — | derivative | Form 4 ↗ | |
| Frankenfield Christopher James | Other A | November 21, 2025 | November 25, 2025 | 4d | 925,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Kevin M. | Other A | November 21, 2025 | November 25, 2025 | 4d | 20,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Kevin M. | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 20,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Kevin M. | Other A | November 21, 2025 | November 25, 2025 | 4d | 25,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Kevin M. | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 25,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Kevin M. | Other A | November 21, 2025 | November 25, 2025 | 4d | 55,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Kevin M. | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 55,000 | — | — | derivative | Form 4 ↗ | |
| Brennan Kevin M. | Other A | November 21, 2025 | November 25, 2025 | 4d | 131,700 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Other A | November 21, 2025 | November 25, 2025 | 4d | 106,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 106,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Other A | November 21, 2025 | November 25, 2025 | 4d | 25,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 25,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Other A | November 21, 2025 | November 25, 2025 | 4d | 35,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 35,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Other A | November 21, 2025 | November 25, 2025 | 4d | 15,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 15,000 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Other A | November 21, 2025 | November 25, 2025 | 4d | 44,210 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 44,210 | — | — | derivative | Form 4 ↗ | |
| Luptakova Katarina | Other A | November 21, 2025 | November 25, 2025 | 4d | 625,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 700,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 700,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 350,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 350,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 150,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 150,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 100,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 100,000 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 50,041 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 50,041 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 135,134 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 135,134 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 473,334 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 473,334 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 239,703 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Option / conversion D | November 21, 2025 | November 25, 2025 | 4d | 239,703 | — | — | derivative | Form 4 ↗ | |
| Russo Rene | Other A | November 21, 2025 | November 25, 2025 | 4d | 2,075,000 | — | — | derivative | Form 4 ↗ |
Congressional trades
No member of Congress has disclosed a trade in this ticker in the filings we have parsed.
Related stocks
Tickers traded by the same people who traded XLO, by number of filers in common. It shows overlap in public filings and nothing else.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 20 | 79 | November 25, 2025 | October 2, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk and the Senate eFD. Values use the reported price for Form 4 and the disclosed range for Congress. See methodology and corrections.
Not investment advice. Disclosures are shown as filed and may lag the trade or be amended. No recommendation is made or implied.