Form 4: Black Stone Minerals Controller Reports Unit Vesting Tax

Black Stone Minerals' Controller, Erin Leah Phillips, reported a disposition of 211 common units for tax withholding related to restricted unit vesting.

Summary

• Erin Leah Phillips, Controller (PAO) of Black Stone Minerals, L.P. (BSM), reported a transaction on January 7, 2026.
• The transaction involved the disposition of 211 common units representing limited partner interests.
• This disposition was for tax withholding purposes associated with the vesting of restricted common units issued under a Long-Term Incentive Plan (LTIP).
• The units were disposed of at a price of $13.38 per unit.
• Following this transaction, Erin Leah Phillips beneficially owns 1,909 common units directly.

Sentiment

Score: 5

Explanation: The filing reports a routine insider transaction related to tax withholding on vested restricted units, which is a neutral event in terms of company performance or outlook.

Positives

• The transaction indicates the vesting of restricted common units, suggesting the achievement of performance or tenure conditions for the Controller.

Negatives

• The disposition of units for tax withholding reduces the direct beneficial ownership of the Controller by 211 units.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance.

Industry Context

This is a routine insider transaction report (Form 4) detailing a tax withholding event related to equity compensation. It does not provide broader industry context or trends.

Stakeholder Impact

• Shareholders: Minimal direct impact, as this is a routine compensation-related transaction for an executive.

Key Dates

Keywords

Black Stone Minerals, BSM, Form 4, insider transaction, beneficial ownership, restricted units, tax withholding, Controller, LTIP