Summary
Updated Aug 30, 2026
Zillah Byng-Thorne is Director of Norwegian Cruise Line Holdings Ltd. (NCLH). 3 SEC Form 4 filings on record going back to 2024, most recently on 11 May 2026. Most recent open-market trade: bought $79K of NCLH on 11 May 2026. Lifetime open-market purchases: $1.24M. Historical track record: 4/5 stars across 4 tracked purchases.
Recent Transactions
4Every recent SEC Form 4 transaction Zillah Byng-Thorne has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Zillah Byng-Thorne 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.
- Stephen G. Pagliuca - $24.99M of NCLH open-market activity in the last 12 months
- John Chidsey - $2.50M of NCLH open-market activity in the last 12 months
- Jonathan Z. Cohen - $475K of NCLH open-market activity in the last 12 months
- Harry Sommer - $463K of NCLH open-market activity in the last 12 months
- Jason Montague - $252K of NCLH open-market activity in the last 12 months
- Brian P. Macdonald - $248K of NCLH 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 Zillah Byng-Thorne?
Zillah Byng-Thorne is a corporate insider, tracked as Director of Norwegian Cruise Line Holdings Ltd. (NCLH). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Zillah Byng-Thorne last file a Form 4?
The most recent primary Form 4 on record is dated 11 May 2026, one of 3 filings going back to 2024.
Has Zillah Byng-Thorne been buying or selling stock?
Recorded transactions: 4 open-market purchases ($1.24M) and 0 open-market sales across all tracked filings.
How accurate is Zillah Byng-Thorne's historical track record?
Across 4 tracked purchases, Zillah Byng-Thorne averaged +7.6% avg 30-day return with a 100% 30-day win rate. InsiderAlpha rates the track record at 4/5 stars.
Where can I see all of Zillah Byng-Thorne'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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