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VAUGHN ROBERT C

Disclosed activity across 1 company

Tapewire entity
72377
SEC CIK
0001203847

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
DORCHESTER MINERALS, L.P.DMLP · Entity 4715DirectorNovember 28, 2025December 02, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

DORCHESTER MINERALS, L.P.

Report date November 28, 2025 · Filed December 02, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common UnitsSEC Table I · non-derivativeDirect20,547 Reported balance After 2025-11-28 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2025-11-28 · Purchase · Acquired 195 · Balance 20,547

F1: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Common UnitsSEC Table I · non-derivativeIndirect.500,000 Reported balance Holding disclosure · report date 2025-11-28 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 500,000

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.

Common UnitsSEC Table I · non-derivativeIndirect.20,000.686 Reported balance Holding disclosure · report date 2025-11-28 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 20,000.686

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.

Filing footnotes · ownership attribution and instrument terms

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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
November 28, 2025 Filed Dec 2, 2025 22:10 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 195 $21.36 $4,165.20
Disclosure

SEC source: 0001437749-25-036677 · rdgdoc.xml · nonDerivative · entry 1

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,547

F1 · ownership.direct: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Read SEC document
November 25, 2025 Filed Nov 28, 2025 14:08 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 352 $21.39 $7,529.28
Disclosure

SEC source: 0001437749-25-036481 · rdgdoc.xml · nonDerivative · entry 2

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,352

F1 · ownership.direct: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Read SEC document
November 25, 2025 Filed Nov 28, 2025 14:08 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 4,263 $21.41 $91,270.83
Disclosure

SEC source: 0001437749-25-036481 · rdgdoc.xml · nonDerivative · entry 1

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

F1 · ownership.direct: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Read SEC document
March 04, 2020 Filed Mar 4, 2020 22:04 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 667 $14.73 $9,824.91
Disclosure

SEC source: 0001437749-20-004343 · rdgdoc.xml · nonDerivative · entry 5

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 500,000

F1 · ownership.nature: 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.

Read SEC document
March 04, 2020 Filed Mar 4, 2020 22:04 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 9,770 $14.75 $144,107.50
Disclosure

SEC source: 0001437749-20-004343 · rdgdoc.xml · nonDerivative · entry 4

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 499,333

F1 · ownership.nature: 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.

Read SEC document
March 04, 2020 Filed Mar 4, 2020 22:04 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 500 $14.77 $7,385.00
Disclosure

SEC source: 0001437749-20-004343 · rdgdoc.xml · nonDerivative · entry 3

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 489,563

F1 · ownership.nature: 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.

Read SEC document
March 04, 2020 Filed Mar 4, 2020 22:04 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 1,200 $14.82 $17,784.00
Disclosure

SEC source: 0001437749-20-004343 · rdgdoc.xml · nonDerivative · entry 2

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 489,063

F1 · ownership.nature: 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.

Read SEC document
March 04, 2020 Filed Mar 4, 2020 22:04 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 653 $14.81 $9,670.93
Disclosure

SEC source: 0001437749-20-004343 · rdgdoc.xml · nonDerivative · entry 1

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 487,863

F1 · ownership.nature: 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.

Read SEC document
December 19, 2017 Filed Dec 20, 2017 15:03 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 1,702 $14.60 $24,849.20
Disclosure

SEC source: 0001437749-17-020937 · rdgdoc.xml · nonDerivative · entry 6

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,737

F2 · ownership.direct: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Read SEC document
December 19, 2017 Filed Dec 20, 2017 15:03 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 700 $14.60 $10,220.00
Disclosure

SEC source: 0001437749-17-020937 · rdgdoc.xml · nonDerivative · entry 5

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,035

F2 · ownership.direct: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Read SEC document
December 19, 2017 Filed Dec 20, 2017 15:03 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 2,398 $14.60 $35,010.56
Disclosure

SEC source: 0001437749-17-020937 · rdgdoc.xml · nonDerivative · entry 4

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,335

F2 · ownership.direct: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Read SEC document
December 19, 2017 Filed Dec 20, 2017 15:03 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 200 $14.58 $2,915.00
Disclosure

SEC source: 0001437749-17-020937 · rdgdoc.xml · nonDerivative · entry 3

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,937

F2 · ownership.direct: These common units are held by Mr. Vaughn in his individual name, IRA or Keogh Plan.

Read SEC document
December 19, 2017 Filed Dec 20, 2017 15:03 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 475 $14.64 $6,953.95
Disclosure

SEC source: 0001437749-17-020937 · rdgdoc.xml · nonDerivative · entry 2

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 487,210

F1 · ownership.nature: 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.

Read SEC document
December 19, 2017 Filed Dec 20, 2017 15:03 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 2,000 $14.59 $29,184.40
Disclosure

SEC source: 0001437749-17-020937 · rdgdoc.xml · nonDerivative · entry 1

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 486,735

F1 · ownership.nature: 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.

Read SEC document
December 06, 2017 Filed Dec 6, 2017 21:43 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 186 $14.70 $2,734.20
Disclosure

SEC source: 0001437749-17-020240 · rdgdoc.xml · nonDerivative · entry 4

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 484,735

F1 · ownership.nature: 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.

Read SEC document
December 06, 2017 Filed Dec 6, 2017 21:43 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 1,100 $14.75 $16,225.00
Disclosure

SEC source: 0001437749-17-020240 · rdgdoc.xml · nonDerivative · entry 3

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 484,549

F1 · ownership.nature: 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.

Read SEC document
December 06, 2017 Filed Dec 6, 2017 21:43 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 2,900 $14.75 $42,774.71
Disclosure

SEC source: 0001437749-17-020240 · rdgdoc.xml · nonDerivative · entry 2

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 483,449

F1 · ownership.nature: 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.

Read SEC document
December 05, 2017 Filed Dec 6, 2017 21:43 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 2,000 $14.65 $29,300.00
Disclosure

SEC source: 0001437749-17-020240 · rdgdoc.xml · nonDerivative · entry 1

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 480,549

F1 · ownership.nature: 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.

Read SEC document
June 30, 2017 Filed Jul 5, 2017 23:24 UTC DORCHESTER MINERALS, L.P. DMLP · Entity 4715 PurchaseCommon Units 51,339 $14.98 $769,058.22
Disclosure

SEC source: 0001437749-17-012303 · rdgdoc.xml · nonDerivative · entry 1

VAUGHN ROBERT C · CIK 0001203847 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · .

Disclosed balance after: 478,549

F1 · kind: Acquired from the issuer on June 30, 2017 pursuant to a Contribution and Exchange Agreement dated June 30, 2017 by and between the issuer and Vaughn Petroleum (DMLP), LLC.

F2 · ownership.nature: 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. Mr. Vaughn disclaims beneficial ownership of such common units, except to the extent of his pecuniary interest therein.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.