John Williamson

John Williamson appears in our data through filings on Altiplano Metals Inc. shares, published by SEDI. The record holds 60 filings, for trades running from 1 August 2018 to 19 December 2025.

The open-market side counts 36 purchases for €65k alongside 1 sale for €15k. The net balance comes to €50k on the buying side. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. The rest of the record consists of 4 option exercises. 2025 to date brings 3 purchases and no sales.

In size, the median ticket on the buying side is €946. Across 29 purchases, this insider has always bought alone, with no colleague buying within 30 days.

The record was last updated on 19 December 2025 with a transaction (€120k) in Altiplano Metals Inc. The latest purchase dates back some time: it was published 633 days ago, on 31 January 2025. Publication is fast: at least half of the trades appear on SEDI on the same day. The shorter that gap, the sooner other investors can see what insiders have done. Every figure here comes from the filings published by SEDI and describes the past, not future prices; it is not investment advice.