Jarkko Lehtismäki

Jarkko Lehtismäki, listed as senior executive, appears in our data through filings on Kamux Oyj shares, published by Nasdaq Helsinki. The record holds 3 filings, for trades running from 15 May 2023 to 27 February 2026.

Purchases make up the whole of the open-market record (3 purchases, €31k). Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Since January 2026: 1 purchase and no sales on the market.

In size, the median ticket on the buying side is €11k. As a share of market capitalisation, the median purchase stands at 0.018%, based on 3 purchases. Of 3 purchases, 2 formed part of a group of insiders buying within 30 days of each other. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time. Looking at 3 purchases old enough to measure, the stock rose over the following 90 days in 33% of cases; the median change was -7.6%. This is a record of the past, not a forecast.

On 2 March 2026 came the latest disclosure, an open-market purchase for €8,810 in Kamux Oyj. Half of the filings or more reach the Nasdaq Helsinki feed on the day of the trade. 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.