Mark E. Layton

This profile gathers the share dealings of Mark E. Layton in Mammoth Energy Services, Inc., where the filings describe the role as finance chief. We count 11 filings; the first trade dates from 19 October 2016 and the latest from 3 March 2023.

In open-market terms, that means 1 purchase worth €41k on one side and 6 sales worth €454k on the other. On balance, insiders were net sellers of €413k. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Outside the open market, there are 4 share grants.

The latest filing, published on 7 March 2023, reports a share grant of €190k in Mammoth Energy Services, Inc. The last insider purchase was made public on 21 October 2016, 3,671 days ago. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.