Michael Diefenbeck

Michael Diefenbeck appears in our data through filings on Bonesupport Holding AB shares, published by Finansinspektionen. The record holds 44 filings, for trades running from 27 March 2018 to 19 November 2024.

Both buying and selling appear: 10 purchases worth €369k, against 32 sales worth €2.8M. Netting one side against the other leaves €2.5M of net selling. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Besides market trades, the filings include 2 share grants. In 2024 alone, the filings show 2 purchases and 30 sales.

In size, the median ticket on the buying side is €17k. Clusters matter here: 5 out of 10 purchases overlapped with buying by a colleague within 30 days. When several insiders buy within a few weeks of each other, analysts speak of a cluster purchase.

The newest entry dates from 19 November 2024: an open-market sale of €870k, in Bonesupport Holding AB. The last insider purchase was made public on 15 November 2024, 704 days ago. Typically, a trade is published a median of 1 day after it takes place. The regulation allows three business days to notify a trade (MAR article 19). Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Source: insider filings from Finansinspektionen. Past trades are no guide to future returns.