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NorthWestern Corp. 
 SD
  SEC # 73088

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3,055  SEC Filings
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  from  2/14/94  to  3/14/24  (2 Weeks Ago)

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  Filer / Offerer   Owner / Insider   Issuer / Subject Company   Filing Agent   
 
Most-Recent Filing:    ‘4’ — Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 — for 3/13/24 — Filed as:  Filing Agent — Filed by:  Berzina Jeffrey B. — Re:  NorthWestern Energy Group, Inc. 
 
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notifications of all
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Filings
involving  NorthWestern Corp. 

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Forms
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, Documents
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& Exhibits
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 in  886 Filings
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 Filed as:  Filer / Offerer  or  Owner / Insider


        
Latest Filing  Type    Category    Description        Documents
     
12/7/2315-12GRegistration:  Certifications of Terminations of Registration of Classes of Securities — Form 152
12/6/238-KUpdate:  Current Reports — Form 8-K — Press Releases
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& Conference Calls
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 — Financial Reports
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495

8-K Items: 
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12/5/23
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  Business & Operations: 
Entry into a Material Definitive Agreement — Item 1.01 — ‘EX-10’
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60
10/30/20 OLD"Termination of a Material Definitive Agreement — Item 1.02  OLD  — ‘EX-10’
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4
10/26/04 OLD"Bankruptcy or Receivership — Item 1.03  OLD  — ‘EX-2’
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1
11/24/14 OLD
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  Financial Info: 
Completion of Acquisition or Disposition of Assets — Item 2.01  OLD  — ‘EX-2’
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2
10/27/23"Results of Operations and Financial Condition — Item 2.02 — Financial Reports
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75
12/5/23"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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36
10/11/12 OLD"Material Impairments — Item 2.06  OLD  — ‘EX-2’
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1
10/2/23
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  Securities & Trading: 
Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing — Item 3.013
10/26/04 OLD"Unregistered Sales of Equity Securities — Item 3.02  OLD  — ‘EX-1’
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1
10/2/23"Material Modifications to Rights of Security Holders — Item 3.03 — ‘EX-4’
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5
10/26/04 OLD
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  Governance & Management: 
Changes in Control of Registrant — Item 5.01  OLD 1
10/2/23"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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54
10/2/23"Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year — Item 5.03 — ‘EX-3’
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9
5/3/23"Submission of Matters to a Vote of Security Holders — Item 5.0714
12/6/23
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  Disclosures: 
Regulation FD Disclosure — Item 7.01 — ‘EX-99’
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208
4/5/23
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  Events: 
Other Events — Item 8.0163
12/6/23
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  Financials: 
Financial Statements and Exhibits — Item 9.01 — Financial Reports
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362

10/26/2310-QUpdate:  Quarterly Reports — Form 10-Q — Financial Reports
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99
10/2/23POSASRRegistration:  Post-Effective Amendments of Automatic Shelf Registration Statements — Form S-3/F-3ASR2
10/2/23S-8 POSRegistration:  Post-Effective Amendments of Form S-8 Registrations9
6/15/23424B3Registration:  Prospectuses – New Facts or Events9
3/14/23 OLDARSUpdate:  Annual Reports to Security Holders  OLD 10
3/14/23 OLDDEFA14AProxy:  Definitive Additional Proxy Soliciting Materials — Schedule 14A  OLD 44
3/14/23 OLDDEF 14AProxy:  Definitive Proxy Statements — Schedule 14A  OLD  — Financial Reports
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29
2/16/23 OLD10-KUpdate:  Annual Reports — Form 10-K  OLD  — Financial Reports
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33
2/14/22 OLDS-8Registration:  Registration Statements – Securities for Certain Employee Benefit Plans — Form S-8  OLD 12
12/30/21 OLDCORRESPComment:  Comment-Response and Other Letters to the SEC  [ a.k.a. COVER ]  OLD  — All Correspondence with the SEC
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15
11/18/21 OLD424B2Registration:  Prospectuses – Primary Offerings and Shelf Securities  OLD 10
11/15/21 OLD424B5Registration:  Prospectuses – Primary Offerings and Shelf Securities – New Facts or Events  OLD 19
7/16/21 OLDS-3ASRRegistration:  Automatic Shelf Registration Statements by Well-Known Issuers — Form S-3  OLD 8
3/19/21 OLDFWPRegistration:  Prospectuses – Free Writing  OLD 2
9/30/20 OLDCERTTrading:  Certification by a Securities Exchange Approving a Listing — Form CERT  OLD 1
9/30/20 OLD25Trading:  Notices by Issuers of the Removals from Listing and Registration on Securities Exchanges of Matured, Redeemed and Retired Securities — Form 25  OLD 2
9/30/20 OLD8-A12BRegistration:  Registration Statements for Certain Classes of Securities — Form 8-A  OLD 6
8/5/19 OLD144Ownership:  Notices of Proposed Sales of Securities by Insiders — Form 144  OLD 12
2/12/16 OLDPRE 14AProxy:  Preliminary Proxy Statements — Schedule 14A  OLD 6
2/3/16 OLDNO ACTSEC:  SEC No-Action Letter re: a Shareholder Proposal  OLD 1
7/27/12 OLDRWRegistration:  Registration Withdrawal Requests  OLD 2
7/25/12 OLDS-3Registration:  Registration Statements – Securities for Transactions — Form S-3  OLD 16
8/24/09 OLDEFFECTSEC:  SEC Notices of Effectiveness  OLD 2
8/20/09 OLDS-4Registration:  Registration Statements – Securities for Mergers — Form S-4  OLD 11
6/28/06 OLDDEFM14AProxy:  Definitive Proxy Statement – Merger or Acquisition — Schedule 14A  OLD 1
6/9/06 OLDPREM14AProxy:  Preliminary Proxy Statement – Merger or Acquisition — Schedule 14A  OLD 1
4/26/06 OLD8-A12GRegistration:  Registration Statements for Certain Classes of Securities — Form 8-A  OLD 3
6/24/05 OLD11-KUpdate:  Annual Reports by Employee Stock Purchase, Savings and Similar Plans — Form 11-K  OLD 14
12/30/04 OLDREGDEXRegistration:  Notice of an Exempt Offering of Securities — Form D  OLD 1
7/1/03 OLDNT 11-KUpdate:  Notices of Late Filings of Form 11-K Annual Reports — Form 12b-25  OLD 3
4/1/03 OLDNT 10-KUpdate:  Notice of a Late Filing of a Form 10-K Annual Report — Form 12b-25  OLD 1
6/6/02 OLDNT 10-QUpdate:  Notice of a Late Filing of a Form 10-Q Quarterly Report — Form 12b-25  OLD 1
4/1/02 OLD10-K405Update:  Annual Reports — Reg. S-K – Item 405 — Form 10-K  OLD 2
2/25/02 OLDU-1Registration:  Applications and Declarations — Form U-1  OLD 2
1/22/02 OLD424B1Registration:  Prospectus – Info Previously Omitted  OLD 1
9/23/98 OLDS-2Registration:  Registration Statement — Form S-2  OLD 1
2/13/96 OLDSC 13GOwnership:  Statements of Acquisitions of Beneficial Ownership by “Passive” Investors — Schedule 13G  OLD 3
8/3/95 OLD424ARegistration:  Prospectus – Info Substantively Changed or Added  OLD 1

Letters: 
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2/28/07 OLDCOVERComment-Response and Cover Letters to the SEC  [ a.k.a. CORRESP ]  OLD  — All Correspondence with the SEC2

General Exhibits: 
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12/5/23EX-10Material Contracts121
10/2/23EX-3Articles of Incorporation/Organization and Bylaws28
10/2/23EX-2Plans of Acquisitions, Reorganizations, Arrangements, Liquidations and Successions21
7/6/23EX-4Instruments, Including Indentures, Defining the Rights of Security Holders138
6/15/23EX-1Underwriting Agreements  (and mislabeled “1st Exhibits”)28
2/16/23 OLDEX-23Consents of Experts and Counsel  OLD 82
2/16/23 OLDEX-21Subsidiaries Lists  OLD 24
2/14/22 OLDEX-FILING FEESFiling Fees  OLD 1
11/19/21 OLDEX-5Opinions of Counsel re: Legality  OLD 53
2/12/21 OLDEX-25Statements of Eligibility to Act as a Trustee — Forms T-1 & T-2  OLD 38
7/27/12 OLDEX-24Powers of Attorney  OLD 9
4/1/02 OLDEX-13Annual and Quarterly Reports to Security Holders  OLD 10
10/3/00 OLDEX-20Other Documents and Statements Furnished to Security Holders  OLD 2
7/28/95 OLDEX-8Opinion of Counsel re: Tax Matters  OLD 1

Additional Exhibits: 
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12/6/23EX-99Miscellaneous Exhibits, such as Press Releases — Press Releases
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& Conference Calls
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584

Financials: 
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12/6/23XML  &  R#IDEA Financial Reports Info — Financial Reports
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3,326
12/6/23EXCELIDEA Workbooks of Financial Reports Info — Workbooks of Financial Reports
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160
12/6/23EX-101.*XBRL Data  (XBRL Files)687
12/6/23JSONXBRL Instances as JavaScript Object Notation Data  (JSON Files)118
12/6/23ZIPXBRL Zipped Folders
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  (Folders of XBRL Files)
153
10/26/23EX-31Certifications — §302 – SOA’02165
10/26/23EX-32Certifications — §906 – SOA’02166
2/12/18 OLDEX-12Statements re: Computations of Ratios  OLD 22
7/23/12 OLDEX-18Letter re: a Change in Accounting Principles or Practices  OLD 1
5/22/02 OLDEX-16Letter re: a Change in Accountant  OLD 1
11/13/00 OLDEX-27Financial Data Schedules {Pre-XBRL}  OLD  — Financial Reports
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26

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12/6/23GRAPHICPhotos, Images and Graphs9,283


Forms
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, Documents
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& Exhibits
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 in  2,151 Filings
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 Filed re:  Issuer / Subject Company


        
New Filing!  List all Money Managers that own this Security Issuer:  CUSIP 668074
 

        
Latest Filing  Type    Category    Description        Documents
     
2/13/24SC 13GOwnership:  Statements of Acquisitions of Beneficial Ownership by “Passive” Investors — Schedule 13G107
9/29/2325-NSETrading:  Notices by Securities Exchanges of the Removals from Listing and Registration of Matured, Redeemed and Retired Securities — Form 252
6/16/233Ownership:  Initial Statements of Beneficial Ownership of Securities by Insiders — Form 346
5/17/234Ownership:  Statements of Changes in Beneficial Ownership of Securities by Insiders — Form 41,819
5/16/23144Ownership:  Notices of Proposed Sales of Securities by Insiders — Form 14413
3/19/21 OLDFWPRegistration:  Prospectuses – Free Writing  OLD 2
1/10/08 OLDSC 13DOwnership:  Statements of Acquisitions of Beneficial Ownership by “Active” Investors — Schedule 13D  OLD 28
1/12/07 OLD5Ownership:  Annual Statements of Changes in Beneficial Ownership of Securities by Insiders — Form 5  OLD 110
2/13/06 OLDDFAN14AProxy:  Definitive Additional Non-Management Proxy Soliciting Material — Schedule 14A  OLD 1
2/8/06 OLD425Registration:  Prospectuses and Communications – Mergers  OLD 5

Letters: 
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1/10/22 OLDLETTERComment and Other Letters from the SEC  [ a.k.a. UPLOAD ]  OLD  — All Correspondence with the SEC18
1/10/22 OLDTEXT-EXTRACTComment and Other Letters from the SEC – PDFs’ Text  [ a.k.a. LETTER ]  OLD 2

General Exhibits: 
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12/8/05 OLDEX-1Underwriting Agreements  (and mislabeled “1st Exhibits”)  OLD 5

Additional Exhibits: 
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9/29/23EX-99Miscellaneous Exhibits, such as Press Releases15

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2/13/06 OLDGRAPHICPhotos, Images and Graphs  OLD 21


        

Filings History

Year    # of Filings
In descending order
2024 34
2023 86
2022 83
2021 74
2020 68
2019 63
2018 79
2017 67
2016 87
2015 97
2014 119
2013 107
2012 111
2011 100
2010 79
2009 112
2008 88
2007 105
2006 146
2005 128
2004 65
2003 72
2002 110
2001 192
2000 203
1999 204
1998 192
1997 121
1996 33
1995 19
1994 11

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