Granite Ridge Resources (GRNT) director adds 18,180 shares in open-market buy

Rhea-AI Filing Summary

Granite Ridge Resources, Inc. director Matthew Reade Miller reported an open-market purchase of the company’s common stock. On May 13, 2026, he bought 18,180 shares of common stock at a price of $5.21 per share.

Following this transaction, Miller directly owns 1,350,213 shares of Granite Ridge Resources common stock. The filing shows this as a straightforward open-market purchase with direct ownership and no derivative securities reported.

Insider Trade Summary

Net Buyer: 18,180 shares ($94,718)

Net Buy 1 txn

Insider Miller Matthew Reade

Role null

Bought 18,180 shs ($95K)

Type	Security	Shares	Price	Value
Purchase	Common Stock, par value $0.0001 per share	18,180	$5.21	$95K

Holdings After Transaction: Common Stock, par value $0.0001 per share — 1,350,213 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 18,180 shares Purchase price: $5.21 per share Shares owned after transaction: 1,350,213 shares +1 more

4 metrics

Shares purchased 18,180 shares Open-market purchase on May 13, 2026

Purchase price $5.21 per share Open-market buy of common stock

Shares owned after transaction 1,350,213 shares Director’s direct holdings post-transaction

Net buy shares 18,180 shares Net share change from reported Form 4

Key Terms

open-market purchase, Common Stock, par value $0.0001 per share, Form 4

3 terms

open-market purchase financial

"transaction_action: "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock, par value $0.0001 per share financial

"security_title: "Common Stock, par value $0.0001 per share""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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^*

Miller Matthew Reade

(Last) (First) (Middle)

5217 MCKINNEY AVE., SUITE 400

(Street)

DALLAS TEXAS 75205

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Granite Ridge Resources, Inc. [ GRNT ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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, par value $0.0001 per share	05/13/2026		P		18,180	A	$5.21	1,350,213	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:

Remarks:

	/s/ Emily Fuquay, by power of attorney for Matthew R. Miller	05/13/2026
	** 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)

FAQ

What insider transaction did Granite Ridge Resources (GRNT) report?

Granite Ridge Resources reported that director Matthew Reade Miller made an open-market purchase of 18,180 common shares at $5.21 per share. This transaction was disclosed on Form 4 and reflects a direct ownership increase in the company’s stock.

How many Granite Ridge Resources (GRNT) shares did the director buy and at what price?

Director Matthew Reade Miller bought 18,180 Granite Ridge Resources common shares at $5.21 per share. This was an open-market purchase, meaning he bought the shares on the public market at prevailing prices rather than through a grant or option exercise.

What are Matthew Reade Miller’s holdings in Granite Ridge Resources (GRNT) after the transaction?

After the reported transaction, Matthew Reade Miller directly owns 1,350,213 shares of Granite Ridge Resources common stock. This post-transaction figure includes the 18,180 shares purchased at $5.21 per share in the open market on May 13, 2026.

Was the Granite Ridge Resources (GRNT) insider transaction a purchase or a sale?

The insider transaction was a purchase. Director Matthew Reade Miller executed an open-market buy of 18,180 Granite Ridge Resources common shares at $5.21 per share, increasing his direct ownership to 1,350,213 shares according to the Form 4 disclosure.

Does the Granite Ridge Resources (GRNT) Form 4 show any derivative securities activity?

The Form 4 does not show any derivative securities activity. It reports only a non-derivative transaction, specifically an open-market purchase of 18,180 common shares at $5.21 per share, resulting in direct ownership of 1,350,213 Granite Ridge Resources shares.