Lasse Petterson

Lasse Petterson, listed as chief executive, appears in our data through filings on Great Lakes Dredge & Dock Corp shares, published by SEC (Form 4). The record holds 61 filings, for trades running from 30 December 2016 to 1 April 2026.

In open-market terms, that means 13 purchases worth €1.2M on one side and 4 sales worth €1.5M on the other. The net balance comes to €343k on the selling side. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Outside the open market, there are 43 share grants.

The median purchase comes to €54k. 10 out of 13 purchases came within 30 days of a purchase by at least one other insider of the same company. Purchases made close together by different insiders form what is called a cluster.

The record was last updated on 1 April 2026 with a share grant in Great Lakes Dredge & Dock Corp. The last insider purchase was made public on 5 August 2022, 1,538 days ago. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. Section 16 rules allow two business days to file each Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.