Mark Collis

Mark Collis is a declared insider of Vesuvius plc, with filings sourced from RNS (LSE). We count 26 filings; the first trade dates from 15 June 2023 and the latest from 12 October 2026.

Purchases make up the whole of the open-market record (14 purchases, €496k). No amount is published for 6 filings, which the totals therefore leave out. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Outside the open market, there are 12 share grants. So far in 2026, the count stands at 2 purchases and no sales.

Half of the purchases are above €41k and half below. Of 14 purchases, 2 formed part of a group of insiders buying within 30 days of each other. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase. Ninety days after publication, 7 purchases show a median change of +3.5%, with the price up in 57% of them. This is a record of the past, not a forecast.

The newest entry dates from 13 October 2026: a share grant of €2,438, in Vesuvius plc. The most recent open-market purchase was published on 1 October 2026, 16 days ago. The median gap between a trade and its publication by RNS (LSE) is 1 day. Under the UK Market Abuse Regulation, managers have three business days to notify their trades. This summary is built from RNS (LSE) disclosures alone and does not predict where the share price will go.