Company Analysis

Xilio Therapeutics, Inc. (XLO)

Nasdaq: XLO · Pharmaceutical Preparations · Waltham, MA · filing with the SEC since 2021
Grade4.7
◀ Past 4.1● Present 4.1▶ Future 5.9
4 est.

Filings

211 filings since 2017 beside 150 insider forms · Non-accelerated filer and smaller reporting company and emerging growth company · read from EDGAR on Nov 13, 2026
Due nextNon-accelerated filer and smaller reporting company and emerging growth company
10-K Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends. by Mar 31, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end. by May 15, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 41 days after the quarter ended. The proxy statement was last filed Apr 28, 2026.

Filings a yearinsider forms included
774745637257
202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 7 times in the last 36 months, the newest Jun 12, 2026.Listing warning from its exchange (8-K item 3.01): 5 times in the last 36 months, the newest Oct 3, 2025.SEC letters: 6 in the last 36 months, the newest May 27, 2026.
Insider forms 150

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 12, 2026 SCHEDULE 13G Large holder notice
Nov 10, 2026 S-8 Employee stock plan registration
Nov 10, 2026 10-Q Quarterly report Sep 30, 2026
Nov 10, 2026 8-K items 2.02, 9.01 Results released · Current report
Aug 14, 2026 SCHEDULE 13G/A Large holder update, amended
Aug 12, 2026 S-8 Employee stock plan registration
Aug 12, 2026 10-Q Quarterly report Jun 30, 2026
Aug 12, 2026 8-K items 2.02, 9.01 Results released · Current report
Jun 12, 2026 8-K items 5.02, 5.07, 9.01 Officer or director change; Shareholder vote · Current report Jun 10, 2026
May 29, 2026 EFFECT Registration effective
May 27, 2026 CORRESP Reply to the SEC
May 27, 2026 S-3/A Shelf registration, amended
May 18, 2026 UPLOAD SEC comment letter
May 15, 2026 SCHEDULE 13G/A Large holder update, amended
May 15, 2026 SCHEDULE 13G Large holder notice
May 15, 2026 SCHEDULE 13G/A Large holder update, amended
May 15, 2026 SCHEDULE 13G Large holder notice
May 12, 2026 S-3 Shelf registration
May 12, 2026 10-Q Quarterly report Mar 31, 2026
May 12, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 28, 2026 ARS Annual report to shareholders Dec 31, 2025
Apr 28, 2026 DEF 14A Proxy statement Jun 10, 2026
Apr 16, 2026 8-K items 5.02, 9.01 Officer or director change · Current report Apr 15, 2026
Mar 23, 2026 S-8 Employee stock plan registration
Mar 23, 2026 10-K Annual report Dec 31, 2025
Mar 23, 2026 8-K items 2.02, 9.01 Results released · Current report
Mar 12, 2026 8-K items 3.03, 5.03, 9.01 Change to shareholders' rights; Charter, bylaw or fiscal-year change · Current report
Mar 9, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Feb 24, 2026 8-K item 5.07 Shareholder vote · Current report Feb 23, 2026
Feb 17, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 17, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 13, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 12, 2026 8-K items 1.01, 7.01, 9.01 Major agreement signed; Investor disclosure (Regulation FD) · Current report Feb 11, 2026
Feb 12, 2026 424B5 Shelf offering
Feb 12, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 11, 2026 424B5 Shelf offering
Jan 26, 2026 DEF 14A Proxy statement Feb 23, 2026
Jan 16, 2026 PRE 14A Preliminary proxy statement
Jan 8, 2026 8-K items 2.02, 5.02, 9.01 Results released; Officer or director change · Current report Jan 6, 2026
Jan 5, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
40 of 211 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton XLO · research, not advice