Vanguard Group's Stake Disclosure in Big Yellow Group plc

The Vanguard Group, Inc. has disclosed its position regarding Big Yellow Group plc through Form 8.3, as per Rule 8.3 of the Takeover Code. As of November 11, 2025, Vanguard holds 10,920,715 ordinary shares, representing 5.55% of Big Yellow’s relevant securities.

No new agreements or understandings related to these securities, such as options or derivatives, have been noted. Additionally, there are no indemnity or other dealing arrangements influencing the transaction. The financial group reported a sale of 7,310 ordinary shares at 11.16 GBP per unit. This disclosure ensures transparency in Vanguard's financial dealings concerning Big Yellow.