William N. Mathis
Director · Black Stone Minerals, L.P.
Individual
- 2024
- Oct 3, 2025
- 3
Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies William N. Mathis files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- James Whitehead - $28.10M in BSM purchases and sales in the last 12 months
- D. Mark Dewalch - $1.48M in BSM purchases and sales in the last 12 months
- Luke Stevens Putman - $1.31M in BSM purchases and sales in the last 12 months
- Thomas L. Carter Jr. - $924K in BSM purchases and sales in the last 12 months
- Ashley J. Longmaid - $150K in BSM purchases and sales in the last 12 months
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Frequently asked questions
Who is William N. Mathis?
William N. Mathis is a corporate insider, tracked as Director of Black Stone Minerals, L.P. (BSM). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did William N. Mathis last file a Form 4?
The most recent primary Form 4 on record is dated 3 October 2025, one of 3 filings going back to 2024.
