Shawn D. Williams

Shawn D. Williams, listed as board member, has filed trades across 3 companies (mainly through SEC (Form 4)), most often in Kirby Corp, Marathon OIL Corp and Tetra Technologies Inc. The record holds 11 filings, for trades running from 2 August 2021 to 5 May 2025.

None of the filings is a plain purchase or sale on the open market; they cover grants, option exercises and other movements. Such operations are usually part of compensation schedules, which makes them a weaker signal than an open-market trade.

On 6 May 2025 came the latest disclosure, a share grant in Kirby Corp. Typically, a trade is published a median of 2 days after it takes place. Section 16 rules allow two business days to file each Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.