Granite Ridge Resources, Inc. insider trading

Every open-market purchase and sale by Granite Ridge Resources, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchases, 5 years $1.4M 34 trades by 7 insiders 3 months later: median −1.2% (−3.7% vs S&P 500) Insider sales, 5 years $0 0 trades by 0 insiders

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.

Granite Ridge Resources, Inc. insider open-market trades
Date	Insider	Trade	Shares	Price	Value	1M after	3M after	6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Granite Ridge Resources, Inc.’s insiders pay?

From May 24, 2023 to September 14, 2026, 10 insiders reported 82 open-market purchases and 1 sale not made under a pre-set plan in Granite Ridge Resources, Inc. Twelve months after each purchase was reported, the shares were −18.7% against the S&P 500 on average (median −18.9%), over 55 purchases with a full year of prices; 6% beat the index. After sales, the shares moved −11.0% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on May 25, 2023 into $11,377 by November 2, 2026, +3.8% a year. It held shares 100% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $19,055 (+20.7% a year), and held throughout $19,055 (+20.7%).

Copying Granite Ridge Resources, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Granite Ridge Resources, Inc.'s insiders from May 25, 2023, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 100% of the time.

Granite Ridge Resources, Inc.: each insider's record
Insider	Role	Purchases	12 months after their purchases	Beat the S&P 500	Sales	12 months after their sales	Latest report
Mccartney John	Director	20	−19.5% (7)	0%	0	—	September 2, 2026
Miller Matthew Reade	Director	20	−20.1% (15)	7%	0	—	September 14, 2026
Brandenberg Luke C	President and CEO	12	−19.4% (12)	8%	0	—	June 4, 2025
Farquharson Tyler	President and CEO	10	−17.2% (8)	0%	0	—	May 13, 2026
Darden Thaddeus	Director	8	−16.3% (8)	13%	0	—	May 13, 2025
Perry Griffin	Director	5	−18.5% (4)	0%	0	—	May 18, 2026
Kettler Ronald Kyle	Chief Financial Officer	4	—	—	0	—	September 8, 2026
Lazarine Kirk	Director	2	−16.3% (1)	0%	0	—	November 21, 2025
Everard Michele J	Director	1	—	—	0	—	March 12, 2026
Grep Gp III Holdings, LLC	10% owner	0	—	—	1	−11.0% (1)	September 15, 2023

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Granite Ridge Resources, Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Granite Ridge Resources, Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 3 buying crowds with six months of prices, it averaged −11.2% against the index. One company's history is too short to judge by; the test across every company is the better guide.

Month	Crowd	3 months on, vs S&P 500	6 months	12 months
May 30, 2025	2 buying	−8.9%	−21.1%	−33.3%
September 29, 2023	6 buying	−11.1%	−12.0%	−31.1%
May 31, 2023	3 buying	+29.4%	−0.5%	−5.2%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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