Mark R. Vondrasek

CIK: 0001685938

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)9 (18.8%)

Position reduction

Option Exercises (M)13 (27.1%)

Derivative conversions

Awards (A)9 (18.8%)

Compensation grants

Other (G, F, J, C, D, …)17 (35.4%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

Hyatt Hotels Corp

Officer

DENN

DENNY'S Corp

Director

Discretionary Trading P&L

Holdings

Transaction History (48 total)

H
Hyatt Hotels Corp
May 29, 2026
Sale(S)
Direct
6.1K shares at avg. $185.00$1.1M
H
Hyatt Hotels Corp
May 29, 2026
Sale(S)
Direct
2.1K shares at avg. $186.00$391K
H
Hyatt Hotels Corp
May 20, 2026
Tax Payment(F)
Direct
4.4K shares at avg. $173.19$764K
H
Hyatt Hotels Corp
May 20, 2026
Award(A)
Direct
9.9K shares-
H
Hyatt Hotels Corp
Mar 23, 2026
Sale(S)
Direct
6.5K shares at avg. $147.18$957K
H
Hyatt Hotels Corp
Mar 19, 2026
Award(A)
Restricted Stock Units
Direct
4.5K shares-
H
Hyatt Hotels Corp
Mar 19, 2026
Award(A)
Stock Appreciation Rights
Direct
9.9K shares-
H
Hyatt Hotels Corp
Mar 16, 2026
Tax Payment(F)
Direct
494 shares at avg. $141.33$70K
H
Hyatt Hotels Corp
Mar 16, 2026
Tax Payment(F)
Direct
382 shares at avg. $141.33$54K
H
Hyatt Hotels Corp
Mar 16, 2026
Tax Payment(F)
Direct
555 shares at avg. $141.33$78K
H
Hyatt Hotels Corp
Mar 16, 2026
Exercise(M)
Direct
1.3K shares-
H
Hyatt Hotels Corp
Mar 16, 2026
Exercise(M)
Direct
1.8K shares-
H
Hyatt Hotels Corp
Mar 16, 2026
Tax Payment(F)
Direct
748 shares at avg. $141.33$106K
H
Hyatt Hotels Corp
Mar 16, 2026
Exercise(M)
Direct
1.2K shares-
H
Hyatt Hotels Corp
Mar 16, 2026
Exercise(M)
Direct
907 shares-
H
Hyatt Hotels Corp
Mar 4, 2026
Tax Payment(F)
Direct
2.3K shares at avg. $162.00$372K
H
Hyatt Hotels Corp
Mar 4, 2026
Award(A)
Direct
9K shares-
H
Hyatt Hotels Corp
Mar 4, 2026
Tax Payment(F)
Direct
3.7K shares at avg. $162.00$596K
H
Hyatt Hotels Corp
Mar 4, 2026
Award(A)
Direct
5.2K shares-
DENN
DENNY'S Corp
Jan 16, 2026
Exercise(M)
Direct
38.7K shares-
DENN
DENNY'S Corp
Jan 16, 2026
Disposition(D)
Direct
38.7K shares at avg. $6.25$242K
H
Hyatt Hotels Corp
Nov 11, 2025
Sale(S)
Direct
4.9K shares at avg. $155.91$769K
H
Hyatt Hotels Corp
Nov 11, 2025
Disposition(D)
Direct
4.2K shares at avg. $155.91$662K
H
Hyatt Hotels Corp
Nov 11, 2025
Exercise(M)
Direct
7K shares at avg. $95.06$662K
H
Hyatt Hotels Corp
Nov 11, 2025
Disposition(D)
Direct
2.4K shares at avg. $155.91$368K

		Type	Shares	Price		Ownership
May 29, 2026	H Hyatt Hotels Corp	Sale(S)	6,100	$185.00	$1,128,500	Direct
May 29, 2026	H Hyatt Hotels Corp	Sale(S)	2,100	$186.00	$390,600	Direct
May 20, 2026	H Hyatt Hotels Corp	Tax Payment(F)	4,414	$173.19	$764,461	Direct
May 20, 2026	H Hyatt Hotels Corp	Award(A)	9,900	-	$0	Direct
Mar 23, 2026	H Hyatt Hotels Corp	Sale(S)	6,500	$147.18	$956,670	Direct
Mar 19, 2026	H Hyatt Hotels Corp	Award(A) Restricted Stock Units	4,468	-	-	Direct
Mar 19, 2026	H Hyatt Hotels Corp	Award(A) Stock Appreciation Rights	9,944	-	-	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Tax Payment(F)	494	$141.33	$69,817	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Tax Payment(F)	382	$141.33	$53,988	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Tax Payment(F)	555	$141.33	$78,438	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Exercise(M)	1,319	-	$0	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Exercise(M)	1,777	-	$0	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Tax Payment(F)	748	$141.33	$105,715	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Exercise(M)	1,174	-	$0	Direct
Mar 16, 2026	H Hyatt Hotels Corp	Exercise(M)	907	-	$0	Direct
Mar 4, 2026	H Hyatt Hotels Corp	Tax Payment(F)	2,298	$162.00	$372,276	Direct
Mar 4, 2026	H Hyatt Hotels Corp	Award(A)	9,005	-	$0	Direct
Mar 4, 2026	H Hyatt Hotels Corp	Tax Payment(F)	3,678	$162.00	$595,836	Direct
Mar 4, 2026	H Hyatt Hotels Corp	Award(A)	5,175	-	$0	Direct
Jan 16, 2026	DENN DENNY'S Corp	Exercise(M)	38,697	-	$0	Direct
Jan 16, 2026	DENN DENNY'S Corp	Disposition(D)	38,697	$6.25	$241,856	Direct
Nov 11, 2025	H Hyatt Hotels Corp	Sale(S)	4,930	$155.91	$768,636	Direct
Nov 11, 2025	H Hyatt Hotels Corp	Disposition(D)	4,244	$155.91	$661,682	Direct
Nov 11, 2025	H Hyatt Hotels Corp	Exercise(M)	6,960	$95.06	$661,618	Direct
Nov 11, 2025	H Hyatt Hotels Corp	Disposition(D)	2,363	$155.91	$368,415	Direct

1-25 of 48 transactions

About VONDRASEK MARK R

VONDRASEK MARK R (SEC CIK 0001685938) files insider reports with the SEC as Officer of Hyatt Hotels Corp (H) and Director of DENNY'S Corp (DENN).

Signal8 holds 14 ownership filings by VONDRASEK MARK R, all Form 4s, filed between Nov 26, 2024 and Jun 1, 2026. Those filings report 48 transactions, from Nov 25, 2024 to May 29, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on VONDRASEK MARK R's filings is in CHICAGO, IL.

Recent filings by VONDRASEK MARK R

May 29, 2026: Open-market sales of H shares (2 lines, Form 4, code S).
May 20, 2026: Tax withholding of H shares (Form 4, code F).
May 20, 2026: Grant or award of H shares (Form 4, code A).
Mar 23, 2026: Open-market sale of H shares (Form 4, code S).
Mar 19, 2026: Grants or awards of H derivative securities (2 lines, Form 4, code A).

Other insiders filing for Hyatt Hotels Corp (H)

How to read Form 4 transaction codes