Insiders who reported open-market trades in the last 12 months at the companies Thomas L. Carter Jr. 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
Ashley J. Longmaid - $150K in BSM purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Thomas L. Carter Jr. is a corporate insider, tracked as Executive Chairman, Director of Black Stone Minerals, L.P. (BSM). InsiderAlpha holds 9 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Thomas L. Carter Jr. last file a Form 4?
The most recent primary Form 4 on record is dated 14 May 2026, one of 9 filings going back to 2025.
Has Thomas L. Carter Jr. been buying or selling stock?
Recorded transactions: 15 open-market purchases ($2.91M) and 0 open-market sales across all tracked filings.
Thomas L. Carter Jr. is Executive Chairman, Director of Black Stone Minerals, L.P. (BSM). 9 SEC Form 4 filings on record going back to 2025, most recently on 14 May 2026. Most recent open-market trade: bought $15K of BSM on 14 May 2026. Lifetime open-market purchases: $2.91M.
Recent transactions
18
The latest 18 SEC Form 4 transactions reported by Thomas L. Carter Jr..
InsiderAlpha's records for Thomas L. Carter Jr. go back to 2025: 9 primary Form 4 filings, an average of 4.5 per year. The typical open-market purchase is $194K (15 buys totaling $2.91M). The largest single buy on record is $337K of BSM in 2026. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
