{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-173432","form_type":"8-K","ticker":null,"cik":"0000811532","company_name":"CEDAR FAIR L P","filed_at":"2024-07-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:15.950704+00:00","generated_at":"2026-06-01T00:19:59.042650+00:00","sec_items":["2.01","3.01","3.03","5.02","7.01","8.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.9,"calibrated_materiality_score":0.9,"confidence":"high","headline":"Cedar Fair and Six Flags complete merger of equals; new co trades under FUN","bullets":["Merger closed July 1, 2024; Cedar Fair unitholders get 1 share of new Six Flags per unit, former Six Flags holders get 0.58 shares per share.","New company renamed Six Flags Entertainment Corporation; common stock trades on NYSE as FUN starting July 2, 2024.","Combined portfolio: 27 amusement parks, 15 water parks, 9 resorts across 17 states, Canada, and Mexico.","All Cedar Fair directors and named officers resigned as of Closing Date; Richard Zimmerman remains CEO.","New co assumed Cedar Fair and former Six Flags debt; supplemental indentures and guarantees executed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-173432","json":"https://secwatch.observer/filing/0001193125-24-173432.json","markdown":"https://secwatch.observer/filing/0001193125-24-173432.md","text":"https://secwatch.observer/filing/0001193125-24-173432.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/d833728d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T00:19:59.042650+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"2c8a6db594","claim":"Louis Carr resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"3b6a69cd9f","claim":"David R. Hoffman departed as Senior Vice President and Chief Accounting Officer at CEDAR FAIR L P.","evidence_excerpt":"Additionally, on the Closing Date and as a result of the Mergers, each of Richard A. Zimmerman (President and Chief Executive Officer), Tim Fisher (Chief Operating Officer), Brian C. Witherow (Executive Vice President and Chief Financial Officer), Brian Nurse (Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary), David R. Hoffman (Senior Vice President and Chief Accounting Officer) and Monica Sauls (Senior Vice President and Chief Human Resources Officer) ceased to serve as officers of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased to serve"},{"label":"Role","value":"Senior Vice President and Chief Accounting Officer"}],"fact_type":"executive_change"},{"claim_id":"419894a2b9","claim":"Daniel J. Hanrahan resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"59f3f2e550","claim":"Nina Barton resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"5b24423ab3","claim":"Michelle McKinney Frymire resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"6458acffae","claim":"Tim Fisher departed as Chief Operating Officer at CEDAR FAIR L P.","evidence_excerpt":"Additionally, on the Closing Date and as a result of the Mergers, each of Richard A. Zimmerman (President and Chief Executive Officer), Tim Fisher (Chief Operating Officer), Brian C. Witherow (Executive Vice President and Chief Financial Officer), Brian Nurse (Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary), David R. Hoffman (Senior Vice President and Chief Accounting Officer) and Monica Sauls (Senior Vice President and Chief Human Resources Officer) ceased to serve as officers of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased to serve"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"},{"claim_id":"7ca20f18da","claim":"Richard A. Zimmerman resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"8176baa99b","claim":"Brian C. Witherow departed as Executive Vice President and Chief Financial Officer at CEDAR FAIR L P.","evidence_excerpt":"Additionally, on the Closing Date and as a result of the Mergers, each of Richard A. Zimmerman (President and Chief Executive Officer), Tim Fisher (Chief Operating Officer), Brian C. Witherow (Executive Vice President and Chief Financial Officer), Brian Nurse (Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary), David R. Hoffman (Senior Vice President and Chief Accounting Officer) and Monica Sauls (Senior Vice President and Chief Human Resources Officer) ceased to serve as officers of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased to serve"},{"label":"Role","value":"Executive Vice President and Chief Financial Officer"}],"fact_type":"executive_change"},{"claim_id":"8204eb6529","claim":"Brian Nurse departed as Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary at CEDAR FAIR L P.","evidence_excerpt":"Additionally, on the Closing Date and as a result of the Mergers, each of Richard A. Zimmerman (President and Chief Executive Officer), Tim Fisher (Chief Operating Officer), Brian C. Witherow (Executive Vice President and Chief Financial Officer), Brian Nurse (Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary), David R. Hoffman (Senior Vice President and Chief Accounting Officer) and Monica Sauls (Senior Vice President and Chief Human Resources Officer) ceased to serve as officers of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased to serve"},{"label":"Role","value":"Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary"}],"fact_type":"executive_change"},{"claim_id":"8db89e21d9","claim":"Monica Sauls departed as Senior Vice President and Chief Human Resources Officer at CEDAR FAIR L P.","evidence_excerpt":"Additionally, on the Closing Date and as a result of the Mergers, each of Richard A. Zimmerman (President and Chief Executive Officer), Tim Fisher (Chief Operating Officer), Brian C. Witherow (Executive Vice President and Chief Financial Officer), Brian Nurse (Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary), David R. Hoffman (Senior Vice President and Chief Accounting Officer) and Monica Sauls (Senior Vice President and Chief Human Resources Officer) ceased to serve as officers of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased to serve"},{"label":"Role","value":"Senior Vice President and Chief Human Resources Officer"}],"fact_type":"executive_change"},{"claim_id":"9ac743f99a","claim":"D. Scott Olivet resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"ba350cd35d","claim":"Jennifer Mason resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"d19af026bd","claim":"Carlos A. Ruisanchez resigned as Director at CEDAR FAIR L P.","evidence_excerpt":"Nina Barton, Louis Carr, Michelle McKinney Frymire, Daniel J. Hanrahan, Jennifer Mason, D. Scott Olivet, Carlos A. Ruisanchez and Richard A. Zimmerman resigned as members of the board of directors of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"f2a544ff42","claim":"Richard A. Zimmerman departed as President and Chief Executive Officer at CEDAR FAIR L P.","evidence_excerpt":"Additionally, on the Closing Date and as a result of the Mergers, each of Richard A. Zimmerman (President and Chief Executive Officer), Tim Fisher (Chief Operating Officer), Brian C. Witherow (Executive Vice President and Chief Financial Officer), Brian Nurse (Executive Vice President, Chief Legal and Compliance Officer and Corporate Secretary), David R. Hoffman (Senior Vice President and Chief Accounting Officer) and Monica Sauls (Senior Vice President and Chief Human Resources Officer) ceased to serve as officers of the General Partner.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased to serve"},{"label":"Role","value":"President and Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"1f61b2817ade7ce859d19ddce96ada11e06826f0","claim":"CEDAR FAIR L P completed an acquisition involving Six Flags Entertainment Corporation for Cedar Fair unitholders received one share of common stock in Six Flags Entertainment Corporation for each unit owned, and Former Six Flags shareholders received (closed 2024-07-01).","evidence_excerpt":"On July 1, 2024 (the \" Closing Date \"), Cedar Fair, L.P. (the \" Partnership \") completed the previously announced merger of equals transaction contemplated by the Agreement and Plan of Merger, dated as of November 2, 2023 (the \" Merger Agreement \"), by and among the Partnership, Six Flags Entertainment Corporation (\" Former Six Flags \"), CopperSteel HoldCo, Inc. (\" HoldCo \"), and CopperSteel Merger Sub, LLC (\" Copper Merger Sub \").","evidence_source":"SEC 8-K Item 2.01/5.01","evidence_url":"https://www.sec.gov/Archives/edgar/data/811532/000119312524173432/0001193125-24-173432-index.htm","confidence":0.95,"family_label":"M&A Transactions","details":[{"label":"Action","value":"acquisition"},{"label":"Counterparty","value":"Six Flags Entertainment Corporation"},{"label":"Consideration","value":"Cedar Fair unitholders received one share of common stock in Six Flags Entertainment Corporation for each unit owned, and Former Six Flags shareholders received"},{"label":"Closing","value":"2024-07-01"}],"fact_type":"ma_transaction"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}