James Samuel Shannon insider trades: Xilio Therapeutics (XLO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where James reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 17, 2025 | XLO | ↑ Buy | 70,000 | $0.69 | $48K | Direct | Jun 18, 2025 (1d) |
| Mar 1, 2021 | HZNP | ↓ Sell | 7,232 | $91.30 | $660K | Direct | Mar 3, 2021 (2d) |
| Sep 13, 2019 | HZNP | ↓ Sell | 25,000 | $26.44 | $661K | Direct | Sep 13, 2019 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other XLO insiders
Open-market trades in the last 12 months
About James Samuel Shannon's insider trades
James Samuel Shannon is an insider at Xilio Therapeutics (XLO). Since Sep 13, 2019, James has reported 1 open-market purchase worth $48K and 2 sales worth $1.3M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (28 filings), option exercises (11 filings), shares withheld for taxes (8 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every XLO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.