김성수

김성수 is a declared insider at 3 companies (chief executive); the most frequent names are 대성산업, 세미파이브 and 유한양행. The record holds 3 filings, for trades running from 9 April 2026 to 24 April 2026.

On the market, this insider has only ever bought: 3 purchases, €50k in total. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant.

Half of the purchases are above €16k and half below. Measured against the company's value, the median purchase equals 0.0004% of market capitalisation, across 3 purchases where it is known. 3 out of 3 purchases came within 30 days of a purchase by at least one other insider of the same company. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time. After 3 purchases with a full 90-day history, the hit rate stands at 0% and the median 90-day move at -41.8%. These figures describe past trades and do not predict future prices.

The record was last updated on 4 May 2026 with an open-market purchase (€439) in 대성산업. Filings reach the DART (FSS) feed a median of 7 days after the trade. The shorter that gap, the sooner other investors can see what insiders have done. These figures are compiled from regulatory filings published by DART (FSS). They describe what insiders did and are not a recommendation.