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(now known as Six Flags Entertainment Corporation) (\"HoldCo\") and CopperSteel Merger Sub, LLC, the reported securities, which included 292,126 shares of Common Stock, 373,001 shares of restricted Common Stock and 2,421 Deferred Stock Units (which settled in shares of Common Stock in connection with closing, which shares were partially withheld to cover taxes) were each disposed of in exchange for .5800 shares of HoldCo common stock."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-24-079903","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/701374/000095017024079903/ownership.xml","form_type":"4"}},{"id":1701675,"issuer":{"id":89213,"kind":"organization","name":"Six Flags Entertainment Corp/OLD","symbol":"SIX"},"owners":[{"id":70278,"kind":"person","name":"BASSOUL SELIM A","position":1,"cik":"0001246380","reported_name":"BASSOUL SELIM A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock, par value $0.025 per share","published_at":"2023-12-22T17:16:49.000Z","date":"2023-12-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":235795,"price":24.05,"value":5670869.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld in payment of tax liability in connection with the grant of (i) 362,370 shares of  restricted stock reported herein and (ii) 246,426 shares of restricted stock granted in settlement of previously reported restricted stock units, as contemplated by the Merger Agreement, which shares of restricted stock will vest at the consummation of the Merger, subject to Mr. Bassoul's continued employment with Six Flags through the consummation of the Merger."}],"balance_after":667548,"source":{"system":"sec-edgar","filing":"0000950170-23-072750","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/701374/000095017023072750/ownership.xml","form_type":"4"}},{"id":1701674,"issuer":{"id":89213,"kind":"organization","name":"Six Flags Entertainment Corp/OLD","symbol":"SIX"},"owners":[{"id":70278,"kind":"person","name":"BASSOUL SELIM A","position":1,"cik":"0001246380","reported_name":"BASSOUL SELIM A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock, par value $0.025 per share","published_at":"2023-12-22T17:16:49.000Z","date":"2023-12-20","kind":"grant","planned":false,"acquired":true,"shares":362370,"price":24.05,"value":8714998.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported securities represent a grant of restricted stock under the Six Flags Entertainment Corporation (\"Six Flags\") Long-Term Incentive Plan (the \"Plan\"), which will vest, subject to Mr. Bassoul's continued employment with Six Flags through the consummation of the previously announced merger of equals transaction (the \"Merger\") by and between Six Flags and Cedar Fair, L.P. pursuant to the merger agreement, dated November 2, 2023, by and among the parties thereto (the \"Merger Agreement\"). The reported amount includes: (i) 62,370 restricted shares received in respect of fifty percent ($1,500,000) of a cash transaction bonus to Mr. Bassoul contemplated by the Merger Agreement and memorialized in that certain Letter Agreement, effective as of December 20, 2023, by and between Six Flags and Mr. Bassoul, and (ii) 300,000 restricted shares granted in settlement of PSUs previously granted to Mr. Bassoul."}],"balance_after":903343,"source":{"system":"sec-edgar","filing":"0000950170-23-072750","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/701374/000095017023072750/ownership.xml","form_type":"4"}},{"id":1833611,"issuer":{"id":111551,"kind":"organization","name":"Diversey Holdings, Ltd.","symbol":"DSEY"},"owners":[{"id":70278,"kind":"person","name":"BASSOUL SELIM A","position":1,"cik":"0001246380","reported_name":"BASSOUL SELIM A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Ordinary Shares, $0.0001 par value","published_at":"2023-07-06T16:01:08.000Z","date":"2023-07-05","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":242075,"price":8.4,"value":2033430.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to and in connection with the transactions contemplated by that certain Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of March 8, 2023, by and among the Issuer, Olympus Water Holdings IV, L.P. (\"Parent\"), acting by its general partner, Olympus Water Holdings Limited and Diamond Merger Limited, each of the Issuer's ordinary shares, par value $0.0001 per share (each, an \"Ordinary Share\"), owned by the Reporting Person were cancelled and exchanged into the right to receive $8.40 in cash (the \"Merger Consideration\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"The Ordinary Shares reported as disposed by the Reporting Person include 59,666 shares underlying restricted share units which, pursuant to the Merger Agreement, were vested and cancelled into the right to receive an amount in cash equal to the Merger Consideration, with payment subject to continued service with Parent and its affiliates, as applicable."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001104659-23-078705","document":"tm2320296-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1246380/000110465923078705/tm2320296-1_4seq1.xml","form_type":"4"}},{"id":1892650,"issuer":{"id":89213,"kind":"organization","name":"Six Flags Entertainment Corp/OLD","symbol":"SIX"},"owners":[{"id":70278,"kind":"person","name":"BASSOUL SELIM A","position":1,"cik":"0001246380","reported_name":"BASSOUL SELIM A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT & CEO"}}],"security":"Common Stock, par value $0.025 per share","published_at":"2023-05-16T16:22:42.000Z","date":"2023-05-12","kind":"tax_withholding","planned":false,"acquired":false,"shares":484,"price":26.62,"value":12884.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld in payment of tax liability in connection with the vesting of a previously reported restricted stock award, which vested May 12, 2023."}],"balance_after":540973,"source":{"system":"sec-edgar","filing":"0001415889-23-008102","document":"form4-05162023_080533.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/701374/000141588923008102/form4-05162023_080533.xml","form_type":"4"}},{"id":2272873,"issuer":{"id":89213,"kind":"organization","name":"Six Flags Entertainment Corp/OLD","symbol":"SIX"},"owners":[{"id":70278,"kind":"person","name":"BASSOUL SELIM A","position":1,"cik":"0001246380","reported_name":"BASSOUL SELIM A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT & CEO"}}],"security":"Common Stock, par value $0.025 per share","published_at":"2022-05-13T18:05:34.000Z","date":"2022-05-13","kind":"grant","acquired":true,"shares":1141,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported securities were granted in respect of the reporting person's service as Non-Executive Chairman for the period February-May 2021, which grant was inadvertently delayed due to administrative error."}],"balance_after":541457,"source":{"system":"sec-edgar","filing":"0001415889-22-004970","document":"form4-05132022_030505.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/701374/000141588922004970/form4-05132022_030505.xml","form_type":"4"}},{"id":2312685,"issuer":{"id":111551,"kind":"organization","name":"Diversey Holdings, Ltd.","symbol":"DSEY"},"owners":[{"id":70278,"kind":"person","name":"BASSOUL SELIM A","position":1,"cik":"0001246380","reported_name":"BASSOUL SELIM A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Ordinary Share, $0.0001 par value","published_at":"2022-03-31T16:23:16.000Z","date":"2022-03-29","kind":"grant","acquired":true,"shares":15743,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The reporting person received 15,743 restricted share units (\"RSUs\") under the Diversey Holdings, Ltd. 2021 Omnibus Incentive Plan. The RSUs vest in full on March 29, 2023, subject to the reporting person's continued service to the issuer through the vesting date."}],"balance_after":242075,"source":{"system":"sec-edgar","filing":"0001104659-22-041064","document":"tm2210921-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1246380/000110465922041064/tm2210921-2_4seq1.xml","form_type":"4"}},{"id":2470798,"issuer":{"id":89213,"kind":"organization","name":"Six Flags Entertainment Corp/OLD","symbol":"SIX"},"owners":[{"id":70278,"kind":"person","name":"BASSOUL SELIM A","position":1,"cik":"0001246380","reported_name":"BASSOUL SELIM A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock, par value $0.025 per share","published_at":"2021-12-16T17:11:40.000Z","date":"2021-12-14","kind":"purchase","acquired":true,"shares":32000,"price":37.4824,"value":1199436.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were purchased pursuant to Mr. Bassoul's stock purchase obligation included in his Employment Agreement with the Issuer."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $37.48 to $37.50, inclusive. 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These shares were purchased in multiple transactions ranging from $37.965 to $38.00, inclusive. 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These shares were purchased in multiple transactions ranging from $38.375 to $38.90, inclusive. 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