John B. Williamson III

This profile gathers the share dealings of John B. Williamson III across 3 companies, led by RGC Resources Inc, Optical Cable Corp and Corning Natural Gas Holding Corp. The record holds 92 filings, for trades running from 4 January 2016 to 24 September 2026.

On the market, this insider has only ever bought: 31 purchases, €256k in total. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 60 share grants. In 2026 alone, the filings show 21 purchases and no sales.

In size, the median ticket on the buying side is €4,541. Scaled by market value, the purchases weigh a median 0.0020% of market cap (sample: 22 purchases). Of 31 purchases, 31 formed part of a group of insiders buying within 30 days of each other. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.

The latest filing, published on 25 September 2026, reports an open-market purchase of €4,541 in RGC Resources Inc. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.