A business in context

FUN research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-09-07 · 8010 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-08-12 · 0001671356-26-000005

  2. 10-Q · Quarterly report

    Report date 2026-06-28 · 0001999001-26-000096

  3. 8-K · Current report

    Report date 2026-08-06 · 0001999001-26-000094 · Items 2.02,9.01

  4. 4 · Ownership change

    Report date 2026-07-29 · 0002139766-26-000004

  5. 4 · Ownership change

    Report date 2026-07-29 · 0001522836-26-000005

  6. 4 · Ownership change

    Report date 2026-07-29 · 0001361509-26-000008

  7. 8-K · Current report

    Report date 2026-07-01 · 0001999001-26-000087 · Items 5.02,7.01,9.01

  8. 8-K · Current report

    Report date 2026-06-25 · 0001999001-26-000083 · Items 5.02

  9. 4 · Ownership change

    Report date 2026-06-25 · 0002139766-26-000002

  10. 4 · Ownership change

    Report date 2026-06-25 · 0002136794-26-000004

  11. 4 · Ownership change

    Report date 2026-06-25 · 0002028519-26-000002

  12. 4 · Ownership change

    Report date 2026-06-25 · 0001671356-26-000003

  13. 8-K · Current report

    Report date 2026-05-26 · 0001999001-26-000072 · Items 5.07

  14. 8-K · Current report

    Report date 2026-05-21 · 0001193125-26-242212 · Items 5.02,7.01,9.01

  15. 8-K · Current report

    Report date 2026-05-19 · 0001193125-26-232593 · Items 1.01,5.02,9.01

  16. 10-Q · Quarterly report

    Report date 2026-03-29 · 0001999001-26-000057

  17. 8-K · Current report

    Report date 2026-05-07 · 0001999001-26-000053 · Items 2.02,9.01

  18. 8-K · Current report

    Report date 2026-05-07 · 0001193125-26-212477 · Items 5.02,7.01,9.01

  19. DEF 14A · Proxy statement

    Report date 2026-05-26 · 0001193125-26-149736

  20. 8-K · Current report

    Report date 2026-04-08 · 0001193125-26-148589 · Items 7.01,9.01

  21. 8-K · Current report

    Report date 2026-04-06 · 0001193125-26-143825 · Items 7.01,8.01,9.01

  22. 8-K · Current report

    Report date 2026-03-24 · 0001193125-26-124392 · Items 5.02,7.01,9.01

  23. 8-K · Current report

    Report date 2026-03-10 · 0001193125-26-106226 · Items 5.02

  24. 8-K · Current report

    Report date 2026-03-05 · 0001193125-26-092688 · Items 1.01,7.01,9.01

  25. 10-K · Annual report

    Report date 2025-12-31 · 0001999001-26-000048

  26. 8-K · Current report

    Report date 2026-02-19 · 0001999001-26-000022 · Items 2.02,9.01

  27. 8-K · Current report

    Report date 2026-01-21 · 0001193125-26-021051 · Items 1.01,9.01

  28. 8-K · Current report

    Report date 2026-01-14 · 0001193125-26-012924 · Items 1.01,2.03,9.01

  29. 8-K · Current report

    Report date 2026-01-06 · 0001193125-26-003472 · Items 7.01,8.01,9.01

  30. 8-K · Current report

    Report date 2026-01-05 · 0001193125-26-002779 · Items 8.01

  31. 8-K · Current report

    Report date 2025-12-29 · 0001193125-26-002477 · Items 5.02

  32. 8-K · Current report

    Report date 2025-12-17 · 0001193125-25-330990 · Items 5.02

  33. 8-K · Current report

    Report date 2025-11-21 · 0001193125-25-293793 · Items 5.02,7.01,9.01

  34. 10-Q · Quarterly report

    Report date 2025-09-28 · 0001999001-25-000175

  35. 8-K · Current report

    Report date 2025-11-07 · 0001999001-25-000171 · Items 2.02,7.01,9.01

  36. 8-K · Current report

    Report date 2025-10-17 · 0001193125-25-242513 · Items 1.01,5.02,7.01,9.01

  37. 8-K · Current report

    Report date 2025-10-10 · 0001193125-25-237126 · Items 5.02,7.01,9.01

  38. 8-K · Current report

    Report date 2025-09-12 · 0001999001-25-000164 · Items 7.01,9.01

  39. 8-K/A · Current report

    Report date 2025-06-25 · 0001999001-25-000159 · Items 5.07

  40. 10-Q · Quarterly report

    Report date 2025-06-29 · 0001999001-25-000154

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-09-07 · 2026 Q2: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 5 transaction rows5PSale: 0 transaction rows0SGrant / award: 7 transaction rows7AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

12 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-06-25
2026-06-29
Walia AshokA · Grant / award
Acquired
Common Stock, par value $0.01 per share40595.00.0
2026-06-25
2026-06-29
Martin Ziegenfuss AmyA · Grant / award
Acquired
Common Stock, par value $0.01 per share18788.00.0
2026-06-25
2026-06-29
Tastepe TayfunA · Grant / award
Acquired
Common Stock, par value $0.01 per share13032.00.0
2026-06-25
2026-06-29
Reilly John TA · Grant / award
Acquired
Common Stock, par value $0.01 per share122176.00.0
2026-06-25
2026-06-29
Hoffman David R.A · Grant / award
Acquired
Common Stock, par value $0.01 per share13032.00.0
2026-06-25
2026-06-29
Bennett Christopher LawrenceA · Grant / award
Acquired
Common Stock, par value $0.01 per share37337.00.0
2026-06-15
2026-06-16
JAFFER REHANP · Purchase
Acquired
Common Stock, par value $0.01 per share125000.023.41
2026-06-12
2026-06-16
JAFFER REHANP · Purchase
Acquired
Common Stock, par value $0.01 per share125000.023.69
2026-05-21
2026-05-26
Spiegel Marilyn GP · Purchase
Acquired
Common Stock, par value $0.01 per share2500.019.1
2026-05-12
2026-05-14
HADDRILL RICHARD MP · Purchase
Acquired
Common Stock, par value $0.01 per share10000.019.08
2026-05-12
2026-05-14
Spiegel Marilyn GP · Purchase
Acquired
Common Stock, par value $0.01 per share2500.019.13
2026-04-16
2026-04-20
HADDRILL RICHARD MA · Grant / award
Acquired
Common Stock, par value $0.01 per share217797.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-09-07 · 1611 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001999001Six Flags Entertainment Corporation/NEW

No parent relationship is available in this import; this is not proof of independence.

Legal Entity Identifier
529900AS2CYWYFHRS781
GLEIF legal name
SIX FLAGS ENTERTAINMENT CORPORATION
Entity / LEI registration status
ACTIVE / LAPSED
Reference data updated
2025-03-21T00:30:05Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-09-07 · 1177 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Six Flags · alias · wikidata
  • Six Flags Entertainment Corporation · alias · wikidata
  • CopperSteel HoldCo, Inc. · alias · wikidata
  • CopperSteel HoldCo, Inc. · former SEC name · 2023-11-02 to 2024-06-26
Explore headquarters map ↗

Revenue in constant purchasing power

USD revenue expressed in 2026-07 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$2.71B$2.88B
2023-12-31$1.80B$1.97B
2022-12-31$1.82B$2.07B

Bureau of Labor Statistics · retrieved 2026-09-07 · 9 selected series; gaps remain missing

Explore the CPI history ↗