FUN

Six Flags Entertainment Corporation/NEW

Insider trading activity for Six Flags Entertainment Corporation/NEW, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

+$248.3K

net buying

Bought(1 · 1 insiders): $248.3K
Sold(0 · 0 insiders): $0

Past 6 months

+$6.4M

net buying

Bought(6 · 4 insiders): $6.4M
Sold(0 · 0 insiders): $0

Past 12 months

+$6.4M

net buying

Bought(6 · 4 insiders): $6.4M
Sold(0 · 0 insiders): $0

Transaction history

The 63 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 12	Reilly John T	President & CEO	PBUY◷★	15,713	$15.80	$248.3K	+5.6%	Open the original filing on SEC.gov
Jul 29	Walia Ashok	Chief Financial Officer	AGRANT	66,738	—	—	+164.4%	Open the original filing on SEC.gov
Jul 29	Hoffman David R.	Chief Accounting Officer	AGRANT	16,017	—	—	+16.1%	Open the original filing on SEC.gov
Jul 29	Bennett Christopher…	Chief Legal Officer	AGRANT	9,343	—	—	+25.0%	Open the original filing on SEC.gov
Jun 25	Walia Ashok	Chief Financial Officer	AGRANT	40,595	—	—	—	Open the original filing on SEC.gov
Jun 25	Tastepe Tayfun	Chief Digital & Tech…	AGRANT	13,032	—	—	+43.9%	Open the original filing on SEC.gov
Jun 25	Reilly John T	President & CEO	AGRANT	122,176	—	—	+76.4%	Open the original filing on SEC.gov
Jun 25	Martin Ziegenfuss Amy	Chief Marketing Officer	AGRANT	18,788	—	—	—	Open the original filing on SEC.gov
Jun 25	Hoffman David R.	Chief Accounting Officer	AGRANT	13,032	—	—	+15.1%	Open the original filing on SEC.gov
Jun 25	Bennett Christopher…	Chief Legal Officer	AGRANT	37,337	—	—	+219,629%	Open the original filing on SEC.gov
Jun 15	Jaffer Rehan	Director	PBUY	125,000	$23.41	$2.9M	+2.6%	Open the original filing on SEC.gov
Jun 12	Jaffer Rehan	Director	PBUY★	125,000	$23.69	$3M	+2.7%	Open the original filing on SEC.gov
May 21	Spiegel Marilyn G	Director	PBUY	2,500	$19.10	$47.8K	+19.8%	Open the original filing on SEC.gov
May 12	Spiegel Marilyn G	Director	PBUY★	2,500	$19.13	$47.8K	+24.6%	Open the original filing on SEC.gov
May 12	Haddrill Richard M	Executive Chair	PBUY★	10,000	$19.08	$190.8K	+4.5%	Open the original filing on SEC.gov
Apr 16	Haddrill Richard M	Executive Chair	AGRANT	217,797	—	—	+9,388%	Open the original filing on SEC.gov
Feb 23	Witherow Brian C	Chief Financial Officer	FTAX	16,469	$18.24	$300.4K	-5.2%	Open the original filing on SEC.gov
Feb 23	Tastepe Tayfun	Chief Digital & Tech…	FTAX	3,639	$18.24	$66.4K	-10.9%	Open the original filing on SEC.gov
Feb 23	Nurse Brian	Chief Legal Officer	FTAX	11,246	$18.24	$205.1K	-12.4%	Open the original filing on SEC.gov
Feb 23	Hoffman David R.	Chief Accounting Officer	FTAX	4,788	$18.24	$87.3K	-5.3%	Open the original filing on SEC.gov
Feb 23	Fisher Tim	Chief Operating Officer	FTAX	19,092	$18.24	$348.2K	-7.9%	Open the original filing on SEC.gov
Feb 23	Dieckmann Christian	Chief Commercial Officer	FTAX	3,887	$18.24	$70.9K	-9.4%	Open the original filing on SEC.gov
Jan 2	Spiegel Marilyn G	Director	AGRANT◆	13,038	—	—	—	Open the original filing on SEC.gov
Jan 2	Mason Jennifer	Director	AGRANT	13,038	—	—	+99.6%	Open the original filing on SEC.gov
Jan 2	Huang Chieh E.	Director	AGRANT◆	13,038	—	—	—	Open the original filing on SEC.gov
Jan 2	Hoffman Steven E	Director	AGRANT◆	13,038	—	—	—	Open the original filing on SEC.gov
Jan 2	Dutra Felipe	Director	AGRANT	13,038	—	—	+381.8%	Open the original filing on SEC.gov
Jan 2	Colglazier Michael A	Director	AGRANT◆	13,038	—	—	—	Open the original filing on SEC.gov
Jan 2	Cochran Sandra B	Director	AGRANT◆	13,038	—	—	—	Open the original filing on SEC.gov
Dec 31, 2025	Hanrahan Daniel J	Director	MEXER◆	7,162	—	—	—	Open the original filing on SEC.gov
Dec 31, 2025	Hanrahan Daniel J	Director	DTOISS	7,162	$15.34	$109.9K	-11.0%	Open the original filing on SEC.gov
Dec 31, 2025	Hanrahan Daniel J	Director	MEXER	7,162	—	—	+12.4%	Open the original filing on SEC.gov
Dec 31, 2025	Bassoul Selim A	Executive Chairman	FTAX	110,955	$15.34	$1.7M	-17.1%	Open the original filing on SEC.gov
Dec 31, 2025	Bassoul Selim A	Executive Chairman	AGRANT	261,000	—	—	+67.4%	Open the original filing on SEC.gov
Dec 24, 2025	Carr Louis	Director	MEXER◆	3,581	—	—	—	Open the original filing on SEC.gov
Dec 24, 2025	Carr Louis	Director	DTOISS	3,581	$14.35	$51.4K	-19.0%	Open the original filing on SEC.gov
Dec 24, 2025	Carr Louis	Director	MEXER	3,581	—	—	+23.5%	Open the original filing on SEC.gov
Dec 8, 2025	Reilly John T	President & CEO	AGRANT	159,847	—	—	—	Open the original filing on SEC.gov
Dec 5, 2025	Zimmerman Richard	President & CEO	FTAX	130,310	$15.32	$2M	-14.5%	Open the original filing on SEC.gov
Dec 5, 2025	Zimmerman Richard	President & CEO	AGRANT	298,190	—	—	+49.5%	Open the original filing on SEC.gov
Dec 5, 2025	Zimmerman Richard	President & CEO	FTAX	114,531	$15.32	$1.8M	-16.0%	Open the original filing on SEC.gov
Aug 22, 2025	Fisher Tim	Chief Operating Officer	FTAX	21,850	$25.59	$559.1K	-8.3%	Open the original filing on SEC.gov
Aug 7, 2025	Hoffman Steven E	Director	PBUY	5,044	$24.79	$125K	+59.8%	Open the original filing on SEC.gov
Aug 7, 2025	Hoffman Steven E	Director	PBUY	5,014	$24.54	$123K	+146.8%	Open the original filing on SEC.gov
Jun 25, 2025	Olivet D Scott	Director	MEXER◆	7,162	—	—	—	Open the original filing on SEC.gov
Jun 25, 2025	Olivet D Scott	Director	MEXER	7,162	—	—	+21.1%	Open the original filing on SEC.gov
Jun 25, 2025	Hoffman Steven E	Director	AGRANT	3,415	—	—	—	Open the original filing on SEC.gov
Jun 25, 2025	Dutra Felipe	Director	AGRANT	3,415	—	—	—	Open the original filing on SEC.gov
Jun 25, 2025	Colglazier Michael A	Director	AGRANT◆	3,415	—	—	—	Open the original filing on SEC.gov
Jun 25, 2025	Cochran Sandra B	Director	AGRANT◆	3,415	—	—	—	Open the original filing on SEC.gov
Jun 20, 2025	Sauls Monica	Chief HR Officer	FTAX	10,289	$30.34	$312.2K	-23.0%	Open the original filing on SEC.gov
Jun 20, 2025	Sauls Monica	Chief HR Officer	AGRANT	23,542	—	—	+110.9%	Open the original filing on SEC.gov
Jun 20, 2025	Sauls Monica	Chief HR Officer	FTAX	15,950	$30.34	$483.9K	-42.9%	Open the original filing on SEC.gov
Jun 4, 2025	Witherow Brian C	Chief Financial Officer	FTAX	11,245	$33.11	$372.3K	-3.5%	Open the original filing on SEC.gov
Jun 4, 2025	Zimmerman Richard	President & CEO	FTAX	25,071	$33.11	$830.1K	-3.4%	Open the original filing on SEC.gov
Jun 4, 2025	Nurse Brian	Chief Legal Officer	FTAX	6,508	$33.11	$215.5K	-6.7%	Open the original filing on SEC.gov
Jun 4, 2025	Hoffman David R.	Chief Accounting Officer	FTAX	3,374	$33.11	$111.7K	-3.6%	Open the original filing on SEC.gov
Jun 4, 2025	Fisher Tim	Chief Operating Officer	FTAX	11,143	$33.11	$368.9K	-4.1%	Open the original filing on SEC.gov
Jun 4, 2025	Dieckmann Christian	Chief Commercial Officer	FTAX	2,786	$33.11	$92.2K	-6.3%	Open the original filing on SEC.gov
May 12, 2025	Frymire Michelle M	Director	SSELL	5,929	$37.89	$224.6K	-45.3%	Open the original filing on SEC.gov
May 2, 2025	White Robert Anderson	Chief Commercial Officer	FTAX	10,454	$34.92	$365.1K	-20.4%	Open the original filing on SEC.gov
May 2, 2025	White Robert Anderson	Chief Commercial Officer	AGRANT	23,921	—	—	+87.6%	Open the original filing on SEC.gov
May 2, 2025	White Robert Anderson	Chief Commercial Officer	FTAX	11,556	$34.92	$403.5K	-29.7%	Open the original filing on SEC.gov

PBUY◷★$248.3K

Reilly John T · President & CEOAug 12

15,713 sh @ $15.80 · +5.6% own

AGRANT—

Walia Ashok · Chief Financial…Jul 29

66,738 sh · +164.4% own

AGRANT—

Hoffman David R. · Chief Accounting…Jul 29

16,017 sh · +16.1% own

AGRANT—

Bennett Christopher… · Chief Legal…Jul 29

9,343 sh · +25.0% own

AGRANT—

Walia Ashok · Chief Financial…Jun 25

40,595 sh

AGRANT—

Tastepe Tayfun · Chief Digital &…Jun 25

13,032 sh · +43.9% own

AGRANT—

Reilly John T · President & CEOJun 25

122,176 sh · +76.4% own

AGRANT—

Martin Ziegenfuss Amy · Chief Marketing…Jun 25

18,788 sh

AGRANT—

Hoffman David R. · Chief Accounting…Jun 25

13,032 sh · +15.1% own

AGRANT—

Bennett Christopher… · Chief Legal…Jun 25

37,337 sh · +219,629% own

PBUY$2.9M

Jaffer Rehan · DirectorJun 15

125,000 sh @ $23.41 · +2.6% own

PBUY★$3M

Jaffer Rehan · DirectorJun 12

125,000 sh @ $23.69 · +2.7% own

PBUY$47.8K

Spiegel Marilyn G · DirectorMay 21

2,500 sh @ $19.10 · +19.8% own

PBUY★$47.8K

Spiegel Marilyn G · DirectorMay 12

2,500 sh @ $19.13 · +24.6% own

PBUY★$190.8K

Haddrill Richard M · Executive ChairMay 12

10,000 sh @ $19.08 · +4.5% own

AGRANT—

Haddrill Richard M · Executive ChairApr 16

217,797 sh · +9,388% own

FTAX$300.4K

Witherow Brian C · Chief Financial…Feb 23

16,469 sh @ $18.24 · -5.2% own

FTAX$66.4K

Tastepe Tayfun · Chief Digital &…Feb 23

3,639 sh @ $18.24 · -10.9% own

FTAX$205.1K

Nurse Brian · Chief Legal…Feb 23

11,246 sh @ $18.24 · -12.4% own

FTAX$87.3K

Hoffman David R. · Chief Accounting…Feb 23

4,788 sh @ $18.24 · -5.3% own

FTAX$348.2K

Fisher Tim · Chief Operating…Feb 23

19,092 sh @ $18.24 · -7.9% own

FTAX$70.9K

Dieckmann Christian · Chief Commercial…Feb 23

3,887 sh @ $18.24 · -9.4% own

AGRANT◆—

Spiegel Marilyn G · DirectorJan 2

13,038 sh

AGRANT—

Mason Jennifer · DirectorJan 2

13,038 sh · +99.6% own

AGRANT◆—

Huang Chieh E. · DirectorJan 2

13,038 sh

AGRANT◆—

Hoffman Steven E · DirectorJan 2

13,038 sh

AGRANT—

Dutra Felipe · DirectorJan 2

13,038 sh · +381.8% own

AGRANT◆—

Colglazier Michael A · DirectorJan 2

13,038 sh

AGRANT◆—

Cochran Sandra B · DirectorJan 2

13,038 sh

MEXER◆—

Hanrahan Daniel J · DirectorDec 31, 2025

7,162 sh

DTOISS$109.9K

Hanrahan Daniel J · DirectorDec 31, 2025

7,162 sh @ $15.34 · -11.0% own

MEXER—

Hanrahan Daniel J · DirectorDec 31, 2025

7,162 sh · +12.4% own

FTAX$1.7M

Bassoul Selim A · Executive ChairmanDec 31, 2025

110,955 sh @ $15.34 · -17.1% own

AGRANT—

Bassoul Selim A · Executive ChairmanDec 31, 2025

261,000 sh · +67.4% own

MEXER◆—

Carr Louis · DirectorDec 24, 2025

3,581 sh

DTOISS$51.4K

Carr Louis · DirectorDec 24, 2025

3,581 sh @ $14.35 · -19.0% own

MEXER—

Carr Louis · DirectorDec 24, 2025

3,581 sh · +23.5% own

AGRANT—

Reilly John T · President & CEODec 8, 2025

159,847 sh

FTAX$2M

Zimmerman Richard · President & CEODec 5, 2025

130,310 sh @ $15.32 · -14.5% own

AGRANT—

Zimmerman Richard · President & CEODec 5, 2025

298,190 sh · +49.5% own

FTAX$1.8M

Zimmerman Richard · President & CEODec 5, 2025

114,531 sh @ $15.32 · -16.0% own

FTAX$559.1K

Fisher Tim · Chief Operating…Aug 22, 2025

21,850 sh @ $25.59 · -8.3% own

PBUY$125K

Hoffman Steven E · DirectorAug 7, 2025

5,044 sh @ $24.79 · +59.8% own

PBUY$123K

Hoffman Steven E · DirectorAug 7, 2025

5,014 sh @ $24.54 · +146.8% own

MEXER◆—

Olivet D Scott · DirectorJun 25, 2025

7,162 sh

MEXER—

Olivet D Scott · DirectorJun 25, 2025

7,162 sh · +21.1% own

AGRANT—

Hoffman Steven E · DirectorJun 25, 2025

3,415 sh

AGRANT—

Dutra Felipe · DirectorJun 25, 2025

3,415 sh

AGRANT◆—

Colglazier Michael A · DirectorJun 25, 2025

3,415 sh

AGRANT◆—

Cochran Sandra B · DirectorJun 25, 2025

3,415 sh

FTAX$312.2K

Sauls Monica · Chief HR OfficerJun 20, 2025

10,289 sh @ $30.34 · -23.0% own

AGRANT—

Sauls Monica · Chief HR OfficerJun 20, 2025

23,542 sh · +110.9% own

FTAX$483.9K

Sauls Monica · Chief HR OfficerJun 20, 2025

15,950 sh @ $30.34 · -42.9% own

FTAX$372.3K

Witherow Brian C · Chief Financial…Jun 4, 2025

11,245 sh @ $33.11 · -3.5% own

FTAX$830.1K

Zimmerman Richard · President & CEOJun 4, 2025

25,071 sh @ $33.11 · -3.4% own

FTAX$215.5K

Nurse Brian · Chief Legal…Jun 4, 2025

6,508 sh @ $33.11 · -6.7% own

FTAX$111.7K

Hoffman David R. · Chief Accounting…Jun 4, 2025

3,374 sh @ $33.11 · -3.6% own

FTAX$368.9K

Fisher Tim · Chief Operating…Jun 4, 2025

11,143 sh @ $33.11 · -4.1% own

FTAX$92.2K

Dieckmann Christian · Chief Commercial…Jun 4, 2025

2,786 sh @ $33.11 · -6.3% own

SSELL$224.6K

Frymire Michelle M · DirectorMay 12, 2025

5,929 sh @ $37.89 · -45.3% own

FTAX$365.1K

White Robert Anderson · Chief Commercial…May 2, 2025

10,454 sh @ $34.92 · -20.4% own

AGRANT—

White Robert Anderson · Chief Commercial…May 2, 2025

23,921 sh · +87.6% own

FTAX$403.5K

White Robert Anderson · Chief Commercial…May 2, 2025

11,556 sh @ $34.92 · -29.7% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 48 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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