Vanguard Group Discloses Position on Vesuvius plc

The Vanguard Group, Inc. has issued a Form 8.3 under the UK Takeover Code, revealing its interest in Vesuvius plc. As of November 5, 2026, Vanguard holds 10,913,829 shares, representing a 4.40% interest in Vesuvius plc.

The disclosure highlights Vanguard's transactions in Vesuvius's ordinary shares, with a recent purchase of 2,484 shares at 4.59 GBP each. Additionally, disclosures extend to RHI Magnesita N.V., a party related to the offer involving Vesuvius.

No indemnities, options, or other formal or informal agreements affecting dealings or voting rights in securities related to this disclosure were found. Moreover, no Supplemental Form 8 is attached, indicating no open stock-settled derivatives.

This regulatory filing complies with the Rule 8 of the Code, ensuring transparency in shareholding changes and offers.