Luke S. Putman - 05 May 2026 Form 4 Insider Report for Black Stone Minerals, L.P. (BSM)

Reporting relationship: SVP, General Counsel, and Sec
Issuer ticker: BSM
Reported as of: 05 May 2026
Net transaction value: -$403,999
SEC form: 4
Accepted by SEC: 06 May 2026, 17:19:57 UTC
Prior SEC filing: 06 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Luke S. Putman

Key filing fact

Luke S. Putman filed Form 4 for Black Stone Minerals, L.P. (BSM) on 06 May 2026.

Key facts

This page summarizes Luke S. Putman's Form 4 filing for Black Stone Minerals, L.P. (BSM).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 06 May 2026, 17:19.

Change

Previous filing in this sequence was filed on 06 May 2026.
Current net transaction value: -$403,999.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001337171 Primary reporting owner

Putman Luke Stevens

Relationship: SVP, General Counsel, and Sec
Address: 1001 FANNIN STREET, SUITE 2020, HOUSTON
Signature: /s/ Luke S. Putman
Signature date: 06 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BSM transaction

Common units representing limited partner interests

Sale

Transaction value: $403,999
Shares: -29,386
Change %: -4%
Price: $13.75
Shares after: 702,645
Date: 05 May 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 4, 2025.

Footnote F2

The price reported in Column 4 is a weighted average price. These common units were sold in multiple transactions at prices ranging from $13.56 to 14.11, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units sold at each separate price within the ranges set forth in this footnote.