Updated Jul 16, 2026
VONDRASEK MARK R has filed 2 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $3.41M.

Mark R. Vondrasek is a corporate executive known for his role at Hyatt Hotels Corporation, where he has held various positions. He has been involved in the company's strategic initiatives and operations, contributing to its growth in the hospitality industry.
| Role | See Remarks |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-01 | H | Hyatt Hotels Corp | S — Open-market sale | 2.1K | $186.00 | $391K |
| 2026-06-01 | H | Hyatt Hotels Corp | S — Open-market sale | 6.1K | $185.00 | $1.13M |
| 2026-05-22 | H | Hyatt Hotels Corp | F — Tax withholding / forfeiture | 4.4K | $173.19 | $764K |
| 2026-05-22 | H | Hyatt Hotels Corp | A — Grant or award | 9.9K | $0.00 | |
| 2026-03-23 | H | Hyatt Hotels Corp | S — Open-market sale | 6.5K | $147.18 | $957K |
| 2026-03-18 | H | Hyatt Hotels Corp | F — Tax withholding / forfeiture | 555 | $141.33 | $78K |
| 2026-03-18 | H | Hyatt Hotels Corp | M — Option exercise | 1.3K | — | |
| 2026-03-18 | H | Hyatt Hotels Corp | F — Tax withholding / forfeiture | 382 | $141.33 | $54K |
| 2026-03-18 | H | Hyatt Hotels Corp | M — Option exercise | 907 | — | |
| 2026-03-18 | H | Hyatt Hotels Corp | F — Tax withholding / forfeiture | 494 | $141.33 | $70K |
| 2026-03-18 | H | Hyatt Hotels Corp | M — Option exercise | 1.2K | — | |
| 2026-03-18 | H | Hyatt Hotels Corp | F — Tax withholding / forfeiture | 748 | $141.33 | $106K |
| 2026-03-18 | H | Hyatt Hotels Corp | M — Option exercise | 1.8K | — | |
| 2026-03-06 | H | Hyatt Hotels Corp | F — Tax withholding / forfeiture | 3.7K | $162.00 | $596K |
| 2026-03-06 | H | Hyatt Hotels Corp | A — Grant or award | 9.0K | $0.00 | |
| 2026-03-06 | H | Hyatt Hotels Corp | F — Tax withholding / forfeiture | 2.3K | $162.00 | $372K |
| 2026-03-06 | H | Hyatt Hotels Corp | A — Grant or award | 5.2K | $0.00 | |
| 2026-01-20 | DENN | DENNY'S Corp | D — Derivative transaction | 38.7K | $6.25 | $242K |
| 2026-01-20 | DENN | DENNY'S Corp | M — Option exercise | 38.7K | — | |
| 2025-08-13 | H | Hyatt Hotels Corp | S — Open-market sale | 2.3K | $140.30 | $328K |
Mark R. Vondrasek is a corporate executive known for his role at Hyatt Hotels Corporation, where he has held various positions. He has been involved in the company's strategic initiatives and operations, contributing to its growth in the hospitality industry.…
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 6 open-market sales ($3.41M) across all tracked 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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