Summary
Updated Aug 31, 2026
Mark R. Vondrasek is Executive Vice President, Chief Commercial Officer of Hyatt Hotels Corp (H). 9 SEC Form 4 filings on record going back to 2024, most recently on 1 June 2026. Most recent open-market trade: sold $391K of H on 1 June 2026. Lifetime open-market sales: $4.18M.
Recent Transactions
20Every recent SEC Form 4 transaction Mark R. Vondrasek has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark R. Vondrasek go back to 2024: 9 primary Form 4 filings, an average of 3.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark R. Vondrasek 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.
- Mark Samuel Hoplamazian - $57.88M of H open-market activity in the last 12 months
- JNP 2010-PG Trust - $35.80M of H open-market activity in the last 12 months
- KLP 2006-N3 Family Trust - $8.75M of H open-market activity in the last 12 months
- JNP Parachute Mirror Trust L - $7.16M of H open-market activity in the last 12 months
- TSPV P.G. Trust - $5.98M of H open-market activity in the last 12 months
- JNP Parachute Mirror Trust K - $5.97M of H 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 Mark R. Vondrasek?
Mark R. Vondrasek is a corporate insider, tracked as Executive Vice President, Chief Commercial Officer of Hyatt Hotels Corp (H). InsiderAlpha holds 9 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark R. Vondrasek last file a Form 4?
The most recent primary Form 4 on record is dated 1 June 2026, one of 9 filings going back to 2024.
Has Mark R. Vondrasek been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($4.18M) across all tracked filings.
Where can I see all of Mark R. Vondrasek'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.
Learn More
Follow Mark R. Vondrasek and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial