ROBERT C. VAUGHN - 28 Nov 2025 Form 4 Insider Report for DORCHESTER MINERALS, L.P. (DMLP)

Role: Director
Signature: /s/ Robert C. Vaughn
Issuer symbol: DMLP
Transactions as of: 28 Nov 2025
Transactions value $: $4,165
Form type: 4
Filing time: 02 Dec 2025, 17:10:29 UTC
Previous filing: 28 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
VAUGHN ROBERT C	Director	3838 OAK LAWN AVENUE, SUITE 710, DALLAS	/s/ Robert C. Vaughn	02 Dec 2025	0001203847

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DMLP	Common Units	Purchase	$4.17K	+195	+0.96%	$21.36	20.5K	28 Nov 2025	Direct	F1
holding	DMLP	Common Units						500K	28 Nov 2025	.	F2
holding	DMLP	Common Units						20K	28 Nov 2025	.	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.
F2	These common units are held by Vaughn Petroleum (DMLP), LLC. Mr. Vaughn and his spouse are the only unit holders of Vaughn Petroleum (DMLP), LLC.
F3	These common units are held by Empire Partners, Ltd. Mr. Vaughn is the President of Empire (GP), Inc., the general partner of Empire Partners, Ltd. Mr. Vaughn and his spouse are the shareholders of Empire (GP), Inc. Mr. Vaughn disclaims beneficial ownership of such common units, except to the extent of his pecuniary interest therein.