Thomas L. Carter Jr., Executive Chairman and Director of Black Stone Minerals, L.P., filed a Form 4 on November 10, 2026, disclosing a purchase of 50,000 common units on November 9, 2026.

Key Highlights

  • Purchase transaction: Carter acquired 50,000 common units representing limited partner interests on November 9, 2026, with transaction code P (open-market purchase).
  • Weighted average price: The reported price of $13.7258 per unit reflects a weighted average across multiple transactions at prices ranging from $13.66 to $13.77, inclusive.
  • Direct beneficial ownership: Following the transaction, Carter directly holds 3,732,724 common units.
  • Indirect holdings: Carter also holds units indirectly through multiple entities and trusts, including 11,481,503 units through Carter2221, Ltd. and 167,155 units held by his spouse.
  • Roles: The reporting person is identified in the filing as both a Director and Executive Chairman of Black Stone Minerals, L.P. (NYSE:BSM).
  • Signing authority: The form was signed by Steve Putman as attorney-in-fact for Thomas L. Carter, Jr., and dated November 10, 2026.

Carter's Open-Market Unit Purchase and Beneficial Ownership at Black Stone Minerals

According to the filing, Thomas L. Carter Jr. purchased 50,000 common units of Black Stone Minerals, L.P. (NYSE:BSM) on November 9, 2026, at a weighted average price of $13.7258 per unit. The filing notes that the units were acquired in multiple transactions at prices ranging from $13.66 to $13.77, inclusive, and that Carter undertakes to provide full detail on the number of units purchased at each separate price upon request by the issuer, any security holder, or the SEC staff.

Following the reported transaction, Carter's direct beneficial ownership stands at 3,732,724 common units, according to the filing. In addition to these directly held units, the filing reports several categories of indirect ownership: 13,141 units held by the Fowler Thomas Carter 1995 Trust, 37,741 units by the Georgia Elizabeth Carter 1995 Trust, 37,742 units by the Molly Leachman Carter 1995 Trust, 37,741 units by the Katherine Ross Carter 1995 Trust, 167,155 units held by his spouse, and 11,481,503 units held through Carter2221, Ltd.

The filing identifies Carter as both a Director and Executive Chairman of the issuer. No derivative securities transactions were reported in Table II of the filing. The form was filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 and was signed on November 10, 2026, by Steve Putman as attorney-in-fact.

What Was Disclosed

This Form 4 discloses an open-market purchase by Executive Chairman Thomas L. Carter Jr. of 50,000 Black Stone Minerals common units on November 9, 2026, at a weighted average price of $13.7258, bringing his direct holdings to 3,732,724 units, alongside substantial indirect holdings through trusts and an affiliated entity.