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INSIDER PROFILE · UK
William Whitehorn
Chair of Seraphim Space Investment Trust Plc | Chair of Seraphim Space Investment Trust plc
Profile key: uk|william whitehorn
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 4
- Purchases · 24M
- 4
- Average purchase
- £13,689
- Gross purchase value
- £54,757
- Last purchase
- 2026-06-26
- Completed 20D events
- 4.0
- Outcome status
- INSUFFICIENT_SAMPLE
Latest company: Seraphim Space Investment Trust Plc
Companies: Seraphim Space Investment Trust 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 | 4Small sample | 100.0% (4/4) | 25.0% (1/4) | -1.3% | -3.5% | -11.9% |
| 20D | 4Small sample | 100.0% (4/4) | 0.0% (0/4) | -17.4% | -17.9% | -22.8% |
| 60D | 4Small sample | 100.0% (4/4) | 0.0% (0/4) | -22.7% | -18.0% | -26.3% |
| 120D | 0No data | Awaiting maturity | — | — | — | — |
Research patterns
- First purchase in 12M
- 1/4
- Large purchase ≥ €100k
- 0/4
- Cluster buying · 15D
- 2/4
- Buying the dip · ≥20% below prior 52W high
- Not classifiable
- 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.