Xilio Therapeutics, Inc.

XLO·NASDAQ·$8.35Share Price as of 11/2·$50MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/12/26 10-QQ1 ended 03/31/2605/12/26 10-KFY 202503/23/26 10-QQ3 ended 09/30/2511/13/25 10-QQ2 ended 06/30/2508/14/25

Disclosures

8-KCurrent report08/12/26 8-KCurrent report06/12/26 8-KCurrent report05/12/26 8-KCurrent report04/16/26 8-KCurrent report03/23/26

Prospectuses and Registrations

S-8Registration of securities for employees08/12/26 S-3/AShelf registration (amended)05/27/26 S-3Shelf registration05/12/26 S-8Registration of securities for employees03/23/26 424B5Prospectus supplement02/12/26

Proxies

DEF 14ADefinitive proxy04/28/26 DEF 14ADefinitive proxy01/26/26 PRE 14APreliminary proxy01/16/26 DEF 14ADefinitive proxy10/20/25 PRE 14APreliminary proxy10/10/25

Ownership

Form 3Initial insider ownership10/02/26 Form 4Insider transaction10/02/26 SC 13G/ABeneficial ownership (amended)08/14/26 Form 4Insider transaction06/12/26 Form 4Insider transaction06/12/26

Other

EFFECTRequest for effectiveness05/29/26 CORRESPCorrespondence with the SEC05/27/26 UPLOADLetter from the SEC05/18/26 ARSAnnual report to shareholders04/28/26 EFFECTRequest for effectiveness05/08/25