Mark J. Silk

Mark J. Silk, listed as board member, appears in our data through filings on Sifco Industries Inc shares, published by SEC (Form 4). The record holds 45 filings, for trades running from 3 March 2009 to 28 January 2026.

On the market, this insider has only ever bought: 28 purchases, €355k 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. The rest of the record consists of 15 share grants.

The median purchase comes to €4,607. Clusters matter here: 3 out of 3 purchases overlapped with buying by a colleague within 30 days. Purchases made close together by different insiders form what is called a cluster. For 28 purchases whose 90-day window has closed, the share price was higher on day 90 than the day after publication in 89% of cases, with a median move of +84.9%. This is a record of the past, not a forecast.

Most recently, on 30 January 2026, the filings show a share grant in Sifco Industries Inc. The latest purchase dates back some time: it was published 2,337 days ago, on 15 June 2020. The median gap between a trade and its publication by SEC (Form 4) is 2 days. 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.