Summary
Updated Aug 31, 2026
John McCartney is Director of Granite Ridge Resources, Inc. (GRNT). 39 SEC Form 4 filings on record going back to 2024, most recently on 17 August 2026. Most recent open-market trade: bought $10K of GRNT on 17 August 2026. Lifetime open-market purchases: $323K. Lifetime open-market sales: $2.04M. Historical track record: 2/5 stars across 18 tracked purchases.
Recent Transactions
20Every recent SEC Form 4 transaction John McCartney has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★☆☆☆ (2/5) |
| Total purchases tracked | 18 |
| Purchases with forward-return data | 18 |
| 30-day win rate | 33% |
| 90-day win rate | 6% |
| Avg 5-day return | -0.46% |
| Avg 30-day return | -3.62% |
| Avg 90-day return | -3.97% |
| Best 30-day return | +9.86% |
Trading Pattern
InsiderAlpha's records for John McCartney go back to 2024: 39 primary Form 4 filings, an average of 13.0 per year. The typical open-market purchase is $16K (20 buys totaling $323K). The largest single buy on record is $26K of GRNT in 2025. Sales side: 16 recorded sales totaling $2.04M, so the filing history runs sell-heavy by dollar value. 8 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies John McCartney files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Toby Z. Rice - $15.00M of EQT open-market activity in the last 12 months
- Todd James - $1.99M of EQT open-market activity in the last 12 months
- Jeremy Knop - $1.23M of EQT open-market activity in the last 12 months
- Lesley Evancho - $1.21M of EQT open-market activity in the last 12 months
- J.E.B. Bolen - $566K of EQT open-market activity in the last 12 months
- Griffin Perry - $549K of GRNT open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is John McCartney?
John McCartney is a corporate insider, tracked as Director of Granite Ridge Resources, Inc. (GRNT). InsiderAlpha holds 39 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has John McCartney submitted recently?
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Has John McCartney been buying or selling stock?
Recorded transactions: 20 open-market purchases ($323K) and 16 open-market sales ($2.04M) across all tracked filings.
How accurate is John McCartney's historical track record?
Across 18 tracked purchases, John McCartney averaged -3.6% avg 30-day return with a 33% 30-day win rate. InsiderAlpha rates the track record at 2/5 stars.
Where can I see all of John McCartney's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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