Matador Resources CFO buys 2,000 common shares

The direct holding includes 3,334 restricted shares granted February 14, 2024, which vest on the grant's third anniversary.

Available on EDGAR 11/05/2026 - 06:58 PM EST Accepted by SEC EDGAR 11/05/2026 - 06:58 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Matador Resources Co (MTDR) reported that Christopher P. Calvert, its EVP and CFO, purchased 2,000 common shares on November 5, 2026, at $52.57 per share through his 401(k) account, bringing shares held in that account to 46,000. A separate direct holding entry lists 85,624 common shares; its footnotes say the amount includes shares granted under the company’s Employee Stock Purchase Plan. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Net Buyer: 2,000 shares

Net Buy 1 txn

Insider Calvert Christopher P

Role EVP and CFO

Bought 2,000 shs ($105K)

Increase in Position 4.5%

Type	Security	Shares	Price	Value
Purchase	Common Stock	2,000	$52.57	$105K
Holding	Common Stock F1, F2	--	--	--

Holdings After Transaction: Common Stock — 46,000 shares (Indirect, Represents shares held of record by the reporting person's 401(k) account); Common Stock — 85,624 shares (Direct)

Holdings Before and After: Common Stock, 44,000 to 46,000 shares (Indirect, Represents shares held of record by the reporting person's 401(k) account)

Other Insiders: 1 other insider reported open-market purchases of this stock in the 30 days up to this filing.

Footnotes (2)

1. F1. Includes 3,334 shares of restricted stock granted to the reporting person on February 14, 2024 that vest on the third anniversary of the date of grant.
2. F2. Includes shares acquired pursuant to the Issuer's Employee Stock Purchase Plan. Such acquisitions are exempt under Rule 16b-3.

Key Figures

Common shares purchased: 2,000 shares Purchase price: $52.57 per share Shares held through 401(k) account after purchase: 46,000 shares +2 more

5 metrics

Common shares purchased 2,000 shares Purchased through Christopher P. Calvert's 401(k) account on November 5, 2026

Purchase price $52.57 per share November 5, 2026 purchase

Shares held through 401(k) account after purchase 46,000 shares Reported after the November 5, 2026 purchase

Direct common shares 85,624 shares Separate holding entry dated November 5, 2026

Restricted stock 3,334 shares Granted February 14, 2024; vest on the third anniversary of the grant

Key Terms

Employee Stock Purchase Plan, Rule 16b-3, restricted stock

3 terms

Employee Stock Purchase Plan financial

"acquired pursuant to the Issuer's Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Rule 16b-3 regulatory

"Such acquisitions are exempt under Rule 16b-3."

Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.

restricted stock financial

"3,334 shares of restricted stock granted to the reporting person"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

FAQ

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

How many MTDR shares did Christopher P. Calvert purchase, and at what price?

Christopher P. Calvert purchased 2,000 shares at $52.57 per share on November 5, 2026, through his 401(k) account; no Rule 10b5-1 plan is reported.

How many MTDR shares did Christopher P. Calvert report holding directly?

A separate direct holding entry lists 85,624 common shares. The associated footnotes state that the amount includes 3,334 restricted shares granted February 14, 2024, which vest on the third anniversary, and shares acquired under the Employee Stock Purchase Plan.

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

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Calvert Christopher P

(Last) (First) (Middle)

5400 LBJ FREEWAY

SUITE 1500

(Street)

DALLAS TEXAS 75240

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Matador Resources Co [ MTDR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/05/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/05/2026		P		2,000	A	$52.57	46,000	I	Represents shares held of record by the reporting person's 401(k) account
Common Stock								85,624(1)(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 3,334 shares of restricted stock granted to the reporting person on February 14, 2024 that vest on the third anniversary of the date of grant.

2. Includes shares acquired pursuant to the Issuer's Employee Stock Purchase Plan. Such acquisitions are exempt under Rule 16b-3.

Remarks:

	/s/ Christopher P. Calvert, by Derek E. Gabriel as attorney-in-fact	11/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)