William N. Mathis - 03 Oct 2025 Form 4 Insider Report for Black Stone Minerals, L.P. (BSM)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
07 Oct 2025, 17:04:49 UTC
Prior SEC filing
03 Jul 2025
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Steve Putman, attorney-in-fact for William N. Mathis

Key filing fact

William N. Mathis filed Form 4 for Black Stone Minerals, L.P. (BSM) on 07 Oct 2025.

Key facts

  • This page summarizes William N. Mathis's Form 4 filing for Black Stone Minerals, L.P. (BSM).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 07 Oct 2025, 17:04.

Change

  • Previous filing in this sequence was filed on 03 Jul 2025.
  • Current net transaction value: +$31,247.

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 0001640004 Primary reporting owner

Mathis William N.

Relationship
Director
Address
1001 FANNIN STREET, SUITE 2020, HOUSTON
Signature
/s/ Steve Putman, attorney-in-fact for William N. Mathis
Signature date
07 Oct 2025

Reported non-derivative transactions

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

BSM transaction

Common units representing limited partner interests

Award

Transaction value
$31,247
Shares
+2,378
Change %
+0.98%
Price
$13.14
Shares after
246,200
Date
03 Oct 2025
Ownership
Direct
Footnotes
F1
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
324,763
Date
03 Oct 2025
Ownership
By Travis A. Mathis Special Trust
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
842,637
Date
03 Oct 2025
Ownership
By WM Capital Partners, L.P.
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
295,574
Date
03 Oct 2025
Ownership
By William Mathis 2012 Trust
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
295,573
Date
03 Oct 2025
Ownership
By Travis Mathis 2012 Trust
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
10,436
Date
03 Oct 2025
Ownership
By William Mathis 2012 GSTE
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
10,437
Date
03 Oct 2025
Ownership
By Travis Mathis 2012 GSTE
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,153
Date
03 Oct 2025
Ownership
By W2M Limited
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
54,690
Date
03 Oct 2025
Ownership
By Willen Partners LP
BSM holding

Common units representing limited partner interests

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
178,913
Date
03 Oct 2025
Ownership
By Conti Street Partners, L.P.
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Pursuant to a previous arrangement, the Reporting Person elected to receive common units in lieu of a cash retainer for service on the Board of Directors of the Partnership's General Partner.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .