Auction Technology Group PlcLSE: ATG

Notice of Trading Update

· Issued by Auction Technology Group Plc

AUCTION TECHNOLOGY GROUP PLC

Notice of Trading Update

Auction Technology Group plc ("ATG", "the Company") (LON: ATG), the operator of world-leading auction and list price marketplaces that connect millions of buyers with unique items worth finding again, will provide a trading update on the 22 January 2026 for the three month period ended 31 December 2025.

For further information, please contact:

ATG

For investor enquiries

chrisdyett@auctiontechnologygroup.com

matthewwalker@auctiontechnologygroup.com

For media enquiries

press@auctiontechnologygroup.com

Teneo Communications

+44 207 353 4200

(Public relations advisor to ATG)

ATG@teneo.com

Tom Murray, Matt Low, Arthur Rogers

About Auction Technology Group plc

Auction Technology Group plc ("ATG") is the operator of world-leading auction and list price marketplaces that connect millions of buyers with unique items worth finding again. ATG operates across two major sectors: Arts & Antiques ("A&A") and Industrial & Commercial ("I&C").

The Group powers ten branded online auction and list price marketplaces using best in class proprietary technology, and collectively facilitates the sale of more than 26m unique secondary items per year with a value of over $12bn annually. ATG has offices in North America, the United Kingdom, Germany and Mexico.