BSM plans common stock sale under Form 144

A holder of BSM common stock has filed a notice of a planned sale of shares through Morgan Stanley Smith Barney LLC Executive Financial Services on the NYSE, referencing 212710571 common shares and an associated value of 21515946.02.

Rhea-AI Filing Summary

A holder of BSM common stock has filed a notice of a planned sale of shares through Morgan Stanley Smith Barney LLC Executive Financial Services on the NYSE, referencing 212710571 common shares and an associated value of 21515946.02.

The filing also lists prior cash-funded private acquisitions from the issuer or an affiliate of 984866 common shares on May 6, 2015 and 643896 common shares on May 24, 2019.

Key Figures

Common shares figure: 212710571 shares Associated value: 21515946.02 Private acquisition 2015: 984866 shares +2 more

5 metrics

Common shares figure 212710571 shares Common shares referenced in connection with the planned sale on the NYSE

Associated value 21515946.02 Value figure listed alongside the BSM common shares to be sold

Private acquisition 2015 984866 shares Common shares acquired on May 6, 2015 via private acquisition from issuer/affiliate for cash

Private acquisition 2019 643896 shares Common shares acquired on May 24, 2019 via private acquisition from issuer/affiliate for cash

Planned sale date 08/06/2026 Date associated with the planned sale of BSM common stock

Key Terms

Form 144, Private Acquisition from Issuer/Affiliate, Executive Financial Services

3 terms

Form 144 regulatory

"144: Filer Information 144: Issuer Information 144: Securities Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Private Acquisition from Issuer/Affiliate financial

"Common | 05/06/2015 | Private Acquisition from Issuer/Affiliate | Issuer"

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does BSM’s Form 144 filing disclose?

The Form 144 for BSM discloses a planned sale of common shares through Morgan Stanley Smith Barney LLC Executive Financial Services on the NYSE, including figures of 212710571 common shares and an associated value of 21515946.02.

Which broker is involved in the BSM Form 144 stock sale?

The planned sale of BSM common stock is listed as being handled by Morgan Stanley Smith Barney LLC Executive Financial Services, based at 1 New York Plaza, 8th Floor, New York, NY 10004, for trading on the NYSE market.

What share amounts are referenced in BSM’s Form 144?

The filing references 212710571 common shares and an associated figure of 21515946.02. It additionally lists prior private acquisitions of 984866 shares in 2015 and 643896 shares in 2019, both funded in cash from the issuer or an affiliate.

What historical acquisitions of BSM shares are reported in the Form 144?

The Form 144 notes a private acquisition of 984866 BSM common shares on May 6, 2015 and another of 643896 shares on May 24, 2019, each described as a cash transaction from the issuer or an affiliate.

On which exchange is the BSM common stock in this Form 144 traded?

The common stock referenced in the BSM Form 144 is identified as being traded on the NYSE. The filing connects these NYSE-traded common shares with a planned sale via Morgan Stanley Smith Barney LLC Executive Financial Services.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/06/2026 - 04:21 PM Accepted by SEC EDGAR 08/06/2026 - 04:21 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001987724
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	BLACK STONE MINERALS, L.P.
SEC File Number	001-37362
Address of Issuer	1001 FANNIN STREET, SUITE 2020 HOUSTON TEXAS 77022
Phone	(713)658-0647
Name of Person for Whose Account the Securities are To Be Sold	LACY PROPERTIES, LTD.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1628762	21515946.02	212710571	08/06/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/06/2015	Private Acquisition from Issuer/Affiliate	Issuer			984866	05/06/2015	Cash
Common	05/24/2019	Private Acquisition from Issuer/Affiliate	Issuer			643896	05/24/2019	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/06/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ James Walter Whitehead
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)