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US INSIDER PROFILE · NON-SCORING RESEARCH
Brandenberg Luke C
Chief Executive Officer | President
Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001950434
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 0
- Purchases · 24M
- 6
- Average purchase
- $42.6K
- Median purchase
- $33.9K
- Gross purchase value
- $255.9K
Companies: Granite Ridge Resources, Inc.
6 SEC accession(s) · 0 joint-owner event(s). Values are reported Form 4 transaction values in USD.
Qualifying purchase disclosures
| Published | Company | Ticker | Role | Reported value | SEC source |
|---|---|---|---|---|---|
| 2025-06-04 | Granite Ridge Resources, Inc. | GRNT | Chief Executive Officer | President | $35.4K | Open filing |
| 2025-05-16 | Granite Ridge Resources, Inc. | GRNT | Chief Executive Officer | President | $101.3K | Open filing |
| 2024-12-12 | Granite Ridge Resources, Inc. | GRNT | Chief Executive Officer | President | $61.0K | Open filing |
| 2024-12-05 | Granite Ridge Resources, Inc. | GRNT | Chief Executive Officer | President | $9.3K | Open filing |
| 2024-11-27 | Granite Ridge Resources, Inc. | GRNT | Chief Executive Officer | President | $16.4K | Open filing |
| 2024-11-18 | Granite Ridge Resources, Inc. | GRNT | Chief Executive Officer | President | $32.5K | Open filing |
Post-purchase outcomes
Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 6Developing | 100.0% (6/6) | 33.3% (2/6) | -1.0% | -1.0% | -5.5% |
| 20D | 6Developing | 100.0% (6/6) | 66.7% (4/6) | +5.3% | +2.7% | -10.9% |
| 60D | 6Developing | 100.0% (6/6) | 16.7% (1/6) | -7.5% | -6.8% | -10.9% |
| 120D | 6Developing | 100.0% (6/6) | 0.0% (0/6) | -10.7% | -10.6% | -23.5% |
Research patterns
- First purchase in 12M
- 0/5
- Large purchase ≥ $100k
- 1/6
- Cluster buying · 15D
- 6/6
- Buying the dip
- 0/6
Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.
Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.