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Six Flags Entertainment Corp. 
 TX
  SEC # 701374

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1,855  SEC Filings
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  from  2/2/94  to  3/12/24  (2 Weeks Ago)

  List All Filings  or
  Filer / Offerer   Owner / Insider   Issuer / Subject Company   Filing Agent   
 
Most-Recent Filing:    ‘425’ — Prospectus or Communication – Merger — Filed re:  Issuer / Subject Company — Filed by:  CopperSteel HoldCo, Inc. 
 
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notifications of all
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Filings
involving  Six Flags Entertainment Corp. 

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Forms
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, Documents
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& Exhibits
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 in  735 Filings
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 Filed as:  Filer / Offerer  or  Owner / Insider


        
Latest Filing  Type    Category    Description        Documents
     
3/12/24 New Document this Past Month!425Registration:  Prospectuses and Communications – Mergers  New Document this Past Month! 6
3/12/24 New Document this Past Month!8-KUpdate:  Current Reports — Form 8-K  New Document this Past Month!  — Press Releases
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& Conference Calls
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 — Financial Reports
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361

8-K Items: 
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11/2/23
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  Business & Operations: 
Entry into a Material Definitive Agreement — Item 1.01 — ‘EX-10’
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47
12/20/11 OLD"Termination of a Material Definitive Agreement — Item 1.02  OLD  — ‘EX-10’
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6
5/3/10 OLD"Bankruptcy or Receivership — Item 1.03  OLD  — ‘EX-2’
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2
2/29/24 New Document this Past Month!
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  Financial Info: 
Results of Operations and Financial Condition — Item 2.02  New Document this Past Month!  — Financial Reports
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86
5/4/23"Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant — Item 2.03 — ‘EX-10’
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11
6/15/09 OLD"Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement — Item 2.04  OLD  — ‘EX-10’
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1
9/16/05 OLD"Cost Associated with Exit or Disposal Activities — Item 2.05  OLD  — ‘EX-2’
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1
1/17/07 OLD"Material Impairments — Item 2.06  OLD  — ‘EX-2’
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2
4/9/09 OLD
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  Securities & Trading: 
Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing — Item 3.01  OLD 3
5/3/10 OLD"Unregistered Sales of Equity Securities — Item 3.02  OLD  — ‘EX-1’
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2
3/31/20 OLD"Material Modifications to Rights of Security Holders — Item 3.03  OLD  — ‘EX-4’
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5
5/3/10 OLD
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  Governance & Management: 
Changes in Control of Registrant — Item 5.01  OLD 1
12/22/23"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers — Item 5.02 — List of Directors & Officers
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59
5/6/21 OLD"Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year — Item 5.03  OLD  — ‘EX-3’
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14
3/12/24 New Document this Past Month!"Submission of Matters to a Vote of Security Holders — Item 5.07  New Document this Past Month! 14
11/3/23
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  Disclosures: 
Regulation FD Disclosure — Item 7.01 — ‘EX-99’
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56
3/4/24 New Document this Past Month!
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  Events: 
Other Events — Item 8.01  New Document this Past Month! 107
2/29/24 New Document this Past Month!
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  Financials: 
Financial Statements and Exhibits — Item 9.01  New Document this Past Month!  — Financial Reports
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262

3/4/24 New Document this Past Month!DEFA14AProxy:  Definitive Additional Proxy Soliciting Materials — Schedule 14A  New Document this Past Month! 40
2/29/24 New Document this Past Month!10-KUpdate:  Annual Reports — Form 10-K  New Document this Past Month!  — Financial Reports
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32
1/31/24DEFM14AProxy:  Definitive Proxy Statement – Merger or Acquisition — Schedule 14A1
11/13/2310-QUpdate:  Quarterly Reports — Form 10-Q — Financial Reports
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87
3/28/23 OLDARSUpdate:  Annual Reports to Security Holders  OLD 10
3/28/23 OLDDEF 14AProxy:  Definitive Proxy Statements — Schedule 14A  OLD  — Financial Reports
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27
3/17/23 OLDPRE 14AProxy:  Preliminary Proxy Statements — Schedule 14A  OLD  — Financial Reports
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11
3/2/23 OLDNT 10-KUpdate:  Notice of a Late Filing of a Form 10-K Annual Report — Form 12b-25  OLD 1
9/14/22 OLDCORRESPComment:  Comment-Response and Other Letters to the SEC  [ a.k.a. COVER ]  OLD  — All Correspondence with the SEC
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18
4/1/21 OLD8-A12BRegistration:  Registration Statements for Certain Classes of Securities — Form 8-A  OLD 11
4/1/20 OLDCERTTrading:  Certification by a Securities Exchange Approving a Listing — Form CERT  OLD 1
7/28/17 OLDS-8Registration:  Registration Statements – Securities for Certain Employee Benefit Plans — Form S-8  OLD 11
6/16/17 OLDS-3ASRRegistration:  Automatic Shelf Registration Statements by Well-Known Issuers — Form S-3  OLD 3
6/28/10 OLD11-KUpdate:  Annual Reports by Employee Stock Purchase, Savings and Similar Plans — Form 11-K  OLD 3
6/25/10 OLDEFFECTSEC:  SEC Notice of Effectiveness  OLD 1
6/24/10 OLD424B3Registration:  Prospectuses – New Facts or Events  OLD 8
6/22/10 OLDS-3Registration:  Registration Statements – Securities for Transactions — Form S-3  OLD 19
6/21/10 OLD15-12GRegistration:  Certification of a Termination of Registration of a Class of Securities — Form 15  OLD 1
6/18/10 OLDCERTNYSTrading:  Certification by the NYSE Approving a Listing — Form CERT  OLD 1
5/14/10 OLDDRegistration:  Notice of an Exempt Offering of Securities — Form D  OLD 1
6/15/09 OLDSC TO-IOwnership:  Tender-Offer Statements by Issuers — Schedule TO  OLD 4
4/17/09 OLDSC TO-COwnership:  Tender-Offer Communication by an Issuer or Third Party — Schedule TO  OLD 1
10/6/08 OLDS-8 POSRegistration:  Post-Effective Amendment of a Form S-8 Registration  OLD 1
11/14/05 OLDSC14D9COwnership:  Tender-Offer Communications by Issuers re: Third-Party Offers — Schedule 14D-9C  OLD 10
11/4/05 OLDSC 14D9Ownership:  Tender-Offer Solicitation/Recommendation Statements — Schedule 14D-9  OLD 4
10/25/05 OLDDEFC14AProxy:  Definitive Proxy Statement – Contested Solicitation — Schedule 14A  OLD 1
10/6/05 OLDPRER14AProxy:  Preliminary Revised Proxy Soliciting Materials — Schedule 14A  OLD 4
8/25/05 OLDPREC14AProxy:  Preliminary Proxy Statement – Contested Solicitation — Schedule 14A  OLD 1
2/4/05 OLDS-4Registration:  Registration Statements – Securities for Mergers — Form S-4  OLD 14
11/17/04 OLD424B5Registration:  Prospectuses – Primary Offerings and Shelf Securities – New Facts or Events  OLD 6
11/16/04 OLDS-3MEFRegistration:  Registration Statements to Add Securities to Prior Form S-3 Registrations  OLD 2
1/8/01 OLD424B4Registration:  Prospectuses – Info Previously Omitted & New Facts or Events  OLD 8
3/30/00 OLD10-K405Update:  Annual Reports — Reg. S-K – Item 405 — Form 10-K  OLD 2
6/25/99 OLD424B2Registration:  Prospectus – Primary Offering or Shelf Securities  OLD 1
8/14/98 OLDNT 10-QUpdate:  Notice of a Late Filing of a Form 10-Q Quarterly Report — Form 12b-25  OLD 1
1/30/97 OLDPOS AMRegistration:  Post-Effective Amendments of Registration Statements  OLD 2
1/27/97 OLDS-2Registration:  Registration Statements — Form S-2  OLD 11
1/27/97 OLDS-2MEFRegistration:  Registration Statements to Add Securities to Prior Form S-2 Registrations  OLD 2
12/27/96 OLDDEF 14CProxy:  Definitive Proxy Info Statements — Schedule 14C  OLD 2
11/26/96 OLD424ARegistration:  Prospectus – Info Substantively Changed or Added  OLD 1
6/17/96 OLD10-CUpdate:  Report of a Change in the Number of Shares Outstanding or an Issuer Name Change by an Issuer of Securities Quoted on the Nasdaq Stock Market — Form 10-C  OLD 1
5/8/96 OLD8-A12GRegistration:  Registration Statement for a Class of Securities — Form 8-A  OLD 1
4/5/96 OLDPRE 14CProxy:  Preliminary Proxy Info Statement — Schedule 14C  OLD 1
11/3/95 OLDS-1Registration:  Registration Statements (General Form) — Form S-1  OLD 2

General Exhibits: 
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2/29/24 New Exhibit this Past Month!EX-97Clawback Policy re: Recovery of Erroneously Awarded Compensation  New Exhibit this Past Month! 1
2/29/24 New Exhibit this Past Month!EX-23Consents of Experts and Counsel  New Exhibit this Past Month! 208
2/29/24 New Exhibit this Past Month!EX-4Instruments, Including Indentures, Defining the Rights of Security Holders  New Exhibit this Past Month! 50
2/29/24 New Exhibit this Past Month!EX-21Subsidiaries Lists  New Exhibit this Past Month! 28
12/22/23EX-10Material Contracts199
11/2/23EX-2Plans of Acquisitions, Reorganizations, Arrangements, Liquidations and Successions9
8/11/23EX-3Articles of Incorporation/Organization and Bylaws30
7/28/17 OLDEX-5Opinions of Counsel re: Legality  OLD 42
5/28/10 OLDEX-24Powers of Attorney  OLD 2
2/4/05 OLDEX-25Statements of Eligibility to Act as a Trustee — Forms T-1 & T-2  OLD 12
11/19/04 OLDEX-1Underwriting Agreements  (and mislabeled “1st Exhibits”)  OLD 15
1/23/01 OLDEX-14Code of Ethics  OLD 1
5/8/98 OLDEX-8Opinions of Counsel re: Tax Matters  OLD 2

Additional Exhibits: 
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2/29/24 New Exhibit this Past Month!EX-99Miscellaneous Exhibits, such as Press Releases  New Exhibit this Past Month!  — Press Releases
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& Conference Calls
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348

Financials: 
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3/12/24 New Report this Past Month!XML  &  R#IDEA Financial Reports Info  New Report this Past Month!  — Financial Reports
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3,104
3/12/24 New Workbook this Past Month!EXCELIDEA Workbooks of Financial Reports Info  New Workbook this Past Month!  — Workbooks of Financial Reports
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130
3/12/24 New Exhibit this Past Month!EX-101.*XBRL Data  (XBRL Files)  New Exhibit this Past Month! 529
3/12/24 New Exhibit this Past Month!JSONXBRL Instances as JavaScript Object Notation Data  (JSON Files)  New Exhibit this Past Month! 91
3/12/24 New Folder this Past Month!ZIPXBRL Zipped Folders
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  (Folders of XBRL Files)  New Folder this Past Month! 
123
2/29/24 New Exhibit this Past Month!EX-31Certifications — §302 – SOA’02  New Exhibit this Past Month! 168
2/29/24 New Exhibit this Past Month!EX-32Certifications — §906 – SOA’02  New Exhibit this Past Month! 168
2/19/19 OLDEX-12Statements re: Computations of Ratios  OLD 41
11/14/00 OLDEX-27Financial Data Schedules {Pre-XBRL}  OLD  — Financial Reports
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26
3/31/97 OLDEX-11Statements re: Computations of Earnings Per Share  OLD 6
12/31/96 OLDEX-15Letters re: Unaudited Interim Financial Info  OLD 2

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2/29/24 New Graphic this Past Month!GRAPHICPhotos, Images and Graphs  New Graphic this Past Month! 997


Forms
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, Documents
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& Exhibits
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 in  1,145 Filings
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 Filed re:  Issuer / Subject Company


        
New Filing!  List all Money Managers that own this Security Issuer:  CUSIP 83001A
 

        
Latest Filing  Type    Category    Description        Documents
     
3/12/24 New Document this Past Month!425Registration:  Prospectuses and Communications – Mergers  New Document this Past Month! 16
2/13/24SC 13GOwnership:  Statements of Acquisitions of Beneficial Ownership by “Passive” Investors — Schedule 13G170
12/26/234Ownership:  Statements of Changes in Beneficial Ownership of Securities by Insiders — Form 4760
11/15/23SC 13DOwnership:  Statements of Acquisitions of Beneficial Ownership by “Active” Investors — Schedule 13D55
9/20/23144Ownership:  Notices of Proposed Sales of Securities by Insiders — Form 1442
2/2/23 OLD3Ownership:  Initial Statements of Beneficial Ownership of Securities by Insiders — Form 3  OLD 72
2/2/21 OLD5Ownership:  Annual Statements of Changes in Beneficial Ownership of Securities by Insiders — Form 5  OLD 8
6/15/09 OLDSC TO-IOwnership:  Tender-Offer Statements by Issuers — Schedule TO  OLD 4
4/28/09 OLD25-NSETrading:  Notices by Securities Exchanges of the Removals from Listing and Registration of Matured, Redeemed and Retired Securities — Form 25  OLD 2
4/17/09 OLDSC TO-COwnership:  Tender-Offer Communications by Issuers and Third Parties — Schedule TO  OLD 7
11/22/05 OLDDFAN14AProxy:  Definitive Additional Non-Management Proxy Soliciting Materials — Schedule 14A  OLD 12
11/14/05 OLDSC14D9COwnership:  Tender-Offer Communications by Issuers re: Third-Party Offers — Schedule 14D-9C  OLD 10
11/4/05 OLDSC 14D9Ownership:  Tender-Offer Solicitation/Recommendation Statements — Schedule 14D-9  OLD 4
10/25/05 OLDDEFC14AProxy:  Definitive Proxy Statements – Contested Solicitations — Schedule 14A  OLD 2
10/4/05 OLDPRRN14AProxy:  Preliminary Revised Non-Management Proxy Soliciting Materials – Contested Solicitations and Other Situations — Schedule 14A  OLD 3
8/25/05 OLDPREC14AProxy:  Preliminary Proxy Statements – Contested Solicitations — Schedule 14A  OLD 2

Letters: 
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9/22/22 OLDLETTERComment and Other Letters from the SEC  [ a.k.a. UPLOAD ]  OLD  — All Correspondence with the SEC19
9/22/22 OLDTEXT-EXTRACTComment and Other Letters from the SEC – PDFs’ Text  [ a.k.a. LETTER ]  OLD 5

General Exhibits: 
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2/14/11 OLDEX-1Underwriting Agreements  (and mislabeled “1st Exhibits”)  OLD 2
12/1/05 OLDEX-14Code of Ethics  OLD 1
11/22/05 OLDEX-13Annual or Quarterly Report to Security Holders  OLD 1
10/5/05 OLDEX-10Material Contract  OLD 1
10/5/05 OLDEX-9Voting Trust Agreement  OLD 1
2/13/01 OLDEX-24Powers of Attorney  OLD 4

Additional Exhibits: 
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11/15/23EX-99Miscellaneous Exhibits, such as Press Releases70

Financials: 
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12/1/05 OLDEX-15Letter re: Unaudited Interim Financial Info  OLD 1
11/22/05 OLDEX-12Statement re: the Computation of Ratios  OLD 1
10/5/05 OLDEX-7Correspondence from an Accountant re: Non-Reliance on a Previously Issued Audit Report or Completed Interim Review  OLD 1

Graphics: 
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11/3/23GRAPHICPhotos, Images and Graphs110


        

Filings History

Year    # of Filings
In descending order
2024 15
2023 63
2022 73
2021 69
2020 96
2019 68
2018 82
2017 68
2016 89
2015 78
2014 64
2013 60
2012 100
2011 71
2010 125
2009 54
2008 51
2007 116
2006 102
2005 120
2004 52
2003 25
2002 16
2001 33
2000 20
1999 21
1998 50
1997 24
1996 35
1995 14
1994 1

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