undamentalytics Newsletter

Xilio Therapeutics, Inc. insider trading

Every open-market purchase and sale by Xilio Therapeutics, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Xilio Therapeutics, Inc. insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Xilio Therapeutics, Inc.’s insiders pay?

From December 10, 2021 to March 30, 2026, 4 insiders reported 6 open-market purchases and 0 sales not made under a pre-set plan in Xilio Therapeutics, Inc. Twelve months after each purchase was reported, the shares were −64.3% against the S&P 500 on average (median −64.3%), over 1 purchase with a full year of prices; 0% beat the index. That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on December 13, 2021 into $2,568 by November 2, 2026, −24.4% a year. It held shares 33% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $11,962 (+3.8% a year), and held throughout $17,335 (+12.0%).

$0$5.0k$10.0k$15.0k 202120222023202420252026 $17.3k$12.0k$2.6k
Copying Xilio Therapeutics, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Xilio Therapeutics, Inc.'s insiders from December 13, 2021, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 33% of the time.
Xilio Therapeutics, Inc.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Gilead Sciences, Inc. 10% owner 2 — — 0 — December 19, 2024
Shannon James Samuel Director 2 — — 0 — March 30, 2026
Bcip Life Sciences Associates, LP 10% owner 1 −64.3% (1) 0% 0 — December 10, 2021
Russo Rene PRESIDENT AND CEO 1 — — 0 — June 18, 2025

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

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