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US INSIDER PROFILE · NON-SCORING RESEARCH
Byng-Thorne Zillah
Director
Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001951623
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 2
- Purchases · 24M
- 3
- Average purchase
- $414.6K
- Median purchase
- $521.4K
- Gross purchase value
- $1.2M
Companies: Norwegian Cruise Line Holdings Ltd.
3 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 |
|---|---|---|---|---|---|
| 2026-05-11 | Norwegian Cruise Line Holdings Ltd. | NCLH | Director | $521.4K | Open filing |
| 2025-11-10 | Norwegian Cruise Line Holdings Ltd. | NCLH | Director | $525.3K | Open filing |
| 2024-11-05 | Norwegian Cruise Line Holdings Ltd. | NCLH | Director | $197.1K | 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 | 3Small Sample | 100.0% (3/3) | 33.3% (1/3) | -5.6% | -3.2% | -7.9% |
| 20D | 3Small Sample | 100.0% (3/3) | 66.7% (2/3) | +1.3% | +4.8% | -1.9% |
| 60D | 3Small Sample | 100.0% (3/3) | 100.0% (3/3) | +12.6% | +12.1% | +2.8% |
| 120D | 2Small Sample | 100.0% (2/2) | 0.0% (0/2) | -26.3% | -26.3% | -34.8% |
Research patterns
- First purchase in 12M
- 1/2
- Large purchase ≥ $100k
- 3/3
- Cluster buying · 15D
- 2/3
- Buying the dip
- 2/3
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.