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XLO

Xilio Therapeutics (XLO) stock: insider trades, news & valuation

Net buying
Close · Oct 9, 2026 $9.05 +0.4% on the day -22.9% over 12 months 52-week range $7.14 – $11.90

Share price and insider trades

XLO closeInsider buyInsider sale
681012NovDecJan 2026FebMarAprMayJunJulAugSepOctSold $5,668 on 2026-01-02 · Christopher James Frankenfield, Kevin M. BrennanBought $43,950 on 2026-03-26 · James Samuel Shannon
Bought, 12 months$44K
Sold, 12 months$6K
Insiders buying1
Insiders selling2

Xilio Therapeutics insider trading at a glance (Oct 9, 2026): in the past 12 months, 1 insider bought $44K and 2 sold $6K of XLO stock on the open market.

XLO insider buying and selling by quarter

Open-market purchases (green, above the line) and sales (red, below), by trade date.

Q1 2026: $44K bought (1 trades)$44KQ1 2026: $6K sold (2 trades)Q1 2026Q2 2026Q3 2026Q4 2026
QuarterBoughtPurchasesSoldSales
Q4 2026—0—0
Q3 2026—0—0
Q2 2026—0—0
Q1 2026$44K1$6K2

Valuation, profit and volume

P/E (trailing)n/aSector median —
Market value— 
Profit margin—Revenue growth —
Volume vs. 50-day0.6×Last 5 sessions
Insiders' paper profit+$1KOn all tracked purchases +3.0%

Summary

Over the past 12 months, 1 Xilio Therapeutics, Inc. insider reported open-market purchases totaling $44K, while 2 insiders reported sales totaling $6K. 2 of 2 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.

Insider transactions

Open-market purchases and sales.

Filed Insider Type Shares Price Value Since Score
Mar 30SEC James Samuel ShannonDirector Buy 5,00010,000 held (+100%) $8.79 $44K +3.0% —
Jan 5SEC Christopher James FrankenfieldCFO Sell Plan 7,03024,766 held (−22%) $0.64 $4K +1314.1% —
Jan 5SEC Kevin M. BrennanSvp, Finance And Accounting Sell Plan 1,8266,371 held (−22%) $0.64 $1K +1314.1% —

Insiders at Xilio Therapeutics, Inc.

InsiderBoughtSoldLast filingScore
James Samuel ShannonDirector $44K — Mar 30, 2026 —
Christopher James FrankenfieldCFO — $4K Jan 5, 2026 —
Kevin M. BrennanSvp, Finance And Accounting — $1K Jan 5, 2026 —

XLO stock: common questions

Are Xilio Therapeutics, Inc. insiders buying XLO stock?

In the past 12 months, 1 insiders reported open-market purchases of XLO worth $44K. The latest was Director James Samuel Shannon bought $44K of XLO at $8.79 — first open-market purchase in our records; raises the stake by 100%.

Are Xilio Therapeutics, Inc. insiders selling XLO stock?

2 insiders reported sales worth $6K over the same period.

Where does this data come from?

Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.

What is XLO's 52-week range?

Over the past year XLO has traded between $7.14 and $11.90. It last closed at $9.05 on Oct 9, 2026.