Sean P. Leuba

Sean P. Leuba discloses dealings in Mayville Engineering Company, Inc. to SEC (Form 4). We count 11 filings; the first trade dates from 9 January 2024 and the latest from 6 August 2026.

Both buying and selling appear: 3 purchases worth €34k, against 2 sales worth €326k. The net balance comes to €292k on the selling side. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 6 option exercises. 2026 to date brings no purchases and 2 sales.

The median purchase comes to €13k. 2 out of 3 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.

Most recently, on 7 August 2026, the filings show an open-market sale worth €283k in Mayville Engineering Company, Inc. The last purchase on record was published on 11 August 2025, which is 433 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. US insiders must file a Form 4 within two business days of a trade. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.