Black Stone Minerals, L.P. SEC Filing

Morgan Stanley Smith Barney LLC (reported for a BSM insider) filed a Form 144 proposing a sale of 29,386 shares of common stock.

Accepted by SEC EDGAR 04/06/2026 - 04:33 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC (reported for a BSM insider) filed a Form 144 proposing a sale of 29,386 shares of common stock. The filing notes prior 10b5-1 sales of 30,276 shares on 03/05/2026 for $461,584.87. The securities are listed NYSE and the proposed sale date is 01/07/2026.

Key Figures

Proposed shares to sell: 29,386 shares Recent 10b5-1 sales: 30,276 shares Proceeds from prior sale: $461,584.87 +1 more

4 metrics

Proposed shares to sell 29,386 shares proposed sale dated 01/07/2026

Recent 10b5-1 sales 30,276 shares sold on 03/05/2026

Proceeds from prior sale $461,584.87 aggregate proceeds for 03/05/2026 sale

Adjacent aggregate figure $430,504.90 figure listed near 29,386 share line in excerpt

Key Terms

Form 144, 10b5-1, RSA / PSU

3 terms

Form 144 regulatory

"Filer Information | 144: Filer 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.

10b5-1 regulatory

"10b5-1 Sales for LUKE STEVENS PUTMAN"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

RSA / PSU financial

"Securities To Be Sold Common | 01/07/2026 | RSA / PSU"

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

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	0001337171
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, SUITE 2020, HOUSTON TEXAS 77002
Phone	7136580647
Name of Person for Whose Account the Securities are To Be Sold	LUKE STEVENS PUTMAN
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	Officer

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	29386	430504.90	212333793	04/06/2026	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	01/07/2026	RSA / PSU	Issuer			29386	01/07/2026	N/A

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for LUKE STEVENS PUTMAN 1001 fANNIN, SUITE 2020, HOUSTON TX 77002	Common	03/05/2026	30276	461584.87

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock awards and performance stock units during the period of 1/7/2026 through 02/23/2026.
Date of Notice	04/06/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/04/2025
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/ Luke Stevens Putman
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)