John Ernest Black

John Ernest Black has filed trades across 2 companies (mainly through SEDI), most often in Regulus Resources Inc. and Centauri Minerals Inc. Over a trading history stretching from 27 July 2016 to 17 September 2026, the count stands at 36 filings.

Purchases make up the whole of the open-market record (24 purchases, €267k). Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 6 option exercises.

The median purchase comes to €11k. None of the 20 purchases we analysed coincided with buying by another insider of the same company within 30 days.

The latest filing, published on 21 September 2026, reports an option exercise of €934 in Centauri Minerals Inc. The last purchase on record was published on 16 February 2023, which is 1,346 days ago. Typically, a trade is published a median of 1 day after it takes place. This delay matters because a trade only becomes useful information once it is public. Source: insider filings from SEDI. Past trades are no guide to future returns.