Petri Niemisvirta

Filings by Petri Niemisvirta span 2 companies, the busiest being Mandatum Oyj and Sampo. The record holds 8 filings, for trades running from 15 September 2022 to 16 March 2026.

No open-market sale appears; the market trades are 4 purchases worth €52k. The totals exclude 1 filing filed without an amount. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. 2026 to date brings 1 purchase and no sales.

The median purchase comes to €7,065. Measured against the company's value, the median purchase equals 0.0002% of market capitalisation, across 3 purchases where it is known. On 3 out of 3 purchases, another insider of the same company was buying within the same 30 days. When several insiders buy within a few weeks of each other, analysts speak of a cluster purchase.

The latest filing, published on 16 March 2026, reports an open-market purchase in Mandatum Oyj. Between a trade and the moment it shows up on Nasdaq Helsinki, the median delay is 1 day. Under the Market Abuse Regulation, managers have three business days to notify their trades. These figures are compiled from regulatory filings published by Nasdaq Helsinki. They describe what insiders did and are not a recommendation.