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Form 8.3 - The Vanguard Group, Inc.: Vesuvius plc

The Vanguard Group, Inc. filed a Form 8.3 public opening position disclosure on 27 October 2026 regarding Vesuvius plc, with the position held or dealing undertaken on 26 October 2026. Vanguard also stated it is making disclosures in respect of RHI Magnesita N.V.

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What happened

The Vanguard Group, Inc. filed a Form 8.3 public opening position disclosure on 27 October 2026 regarding Vesuvius plc, with the position held or dealing undertaken on 26 October 2026. Vanguard also stated it is making disclosures in respect of RHI Magnesita N.V.

Confirmed

Global impact / market context

A Form 8.3 is used under the Takeover Code when an investor holds 1% or more of a company involved in a possible or actual offer. It gives other investors an early view of Vanguard's position in Vesuvius plc.

Analyst inference

Vanguard's disclosure covers both Vesuvius plc and RHI Magnesita N.V., which means both may be parties to the same offer situation. Vesuvius plc and RHI Magnesita N.V. appear linked through a possible deal, and the filing signals Vanguard holds stakes tied to it.

Analyst inference

What to watch

  1. Vanguard disclosed a position in Vesuvius plc on 26 October 2026 and stated it is also making disclosures in respect of RHI Magnesita N.V. under the Takeover Code. Confirmed
  2. Further Form 8.3 filings by Vanguard could indicate whether its holdings in Vesuvius plc and RHI Magnesita N.V. are changing as the offer situation develops. Analyst inference
  3. Investors should watch for details of any offer for Vesuvius plc, since the Takeover Code disclosure implies a possible or actual offer involving the company and RHI Magnesita N.V. Proposed

Evidence