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INSIDER PROFILE · UK
Rosa Maria Diaz Torres , wife of Stephen Birrell
C hief Executive Officer
Profile key: uk|rosa maria diaz torres , wife of stephen birrell
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 1
- Purchases · 24M
- 1
- Average purchase
- £3,025
- Gross purchase value
- £3,025
- Last purchase
- 2025-11-05
- Completed 20D events
- 1.0
- Outcome status
- INSUFFICIENT_SAMPLE
Latest company: Nativo Resources Plc
Companies: Nativo Resources Plc
Post-purchase outcomes
Benchmark-relative outcomes are available against FTSE 100.
- Excess return = stock return − FTSE 100 return over the same period.
- Hit rate = positive excess-return events ÷ completed events.
- Price coverage = valid point-in-time prices ÷ events mature enough for that period.
- 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 | 1Small sample | 100.0% (1/1) | 0.0% (0/1) | -16.5% | -16.5% | -16.5% |
| 20D | 1Small sample | 100.0% (1/1) | 0.0% (0/1) | -20.1% | -20.1% | -20.1% |
| 60D | 1Small sample | 100.0% (1/1) | 100.0% (1/1) | +24.5% | +24.5% | +24.5% |
| 120D | 1Small sample | 100.0% (1/1) | 0.0% (0/1) | -40.5% | -40.5% | -40.5% |
Research patterns
- First purchase in 12M
- 1/1
- Large purchase ≥ €100k
- 0/1
- Cluster buying · 15D
- 1/1
- Buying the dip · ≥20% below prior 52W high
- 1/1
- Routine / opportunistic
- Not classifiable
Counts are profile-wide, point-in-time research labels. They never affect the insider score or ranking.
Every completed outcome is shown; n<5 is descriptive small-sample evidence and is not scored. Disclosure-level observations published on the same date may share a return path and may not be statistically independent. These results never affect the insider score or ranking.