Zenith Insurance Company
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SEC Filings

On May 20, 2010, Fairfax, through its affiliates, acquired all of the outstanding shares of Zenith National common stock that it did not already own for $38 per share in cash pursuant to a merger transaction (the “Merger”) as provided for in an Agreement and Plan of Merger dated as of February 17, 2010.

In connection with the closing of the Merger, Zenith National’s common stock was delisted from the New York Stock Exchange (the “NYSE”) and trading of the common stock on the NYSE was suspended. Zenith National also deregistered all of its common stock covered under registration statements on Form S 8 and suspended its reporting obligations under Section 12 of the Exchange Act. As a result, all Zenith National’s common stock is deregistered and delisted and Zenith National is no longer a public company under the securities laws and no longer files reports, financial or other, with the Securities and Exchange Commission. The following reports are included solely for historical informational purposes.

 

2010
Filing DateFormDescriptionFiling Group
06/02/1015-12BTermination of registration under Section 12(g) or suspension of duty to file reportsOther
05/26/108-KReport of unscheduled material events or corporate eventCurrent Reports
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/104Statement of changes in beneficial ownership of securities3,4,5
05/24/10S-8 POSPost-effective amendment to an S-8 filingRegistration Statements
05/24/10S-8 POSPost-effective amendment to an S-8 filingRegistration Statements
05/24/10S-8 POSPost-effective amendment to an S-8 filingRegistration Statements
05/24/10S-8 POSPost-effective amendment to an S-8 filingRegistration Statements
05/24/10S-8 POSPost-effective amendment to an S-8 filingRegistration Statements
05/21/10SC 13D/AAn amendment to a SC 13D filingOther
05/21/1025-NSE25-NSEOther
05/19/10SC 13D/AAn amendment to a SC 13D filingOther
05/18/10SC 13G/AAn amendment to a SC 13G filingOther
05/14/104Statement of changes in beneficial ownership of securities3,4,5
05/14/104Statement of changes in beneficial ownership of securities3,4,5
05/14/104Statement of changes in beneficial ownership of securities3,4,5
05/07/10SC 13DFiling by person(s) reporting owned shares of common stock in a public company >5%Other
05/04/108-KReport of unscheduled material events or corporate eventCurrent Reports
05/03/108-KReport of unscheduled material events or corporate eventCurrent Reports
04/26/10SC 13GA statement of beneficial ownership of common stock by certain personsOther
04/23/10DEFA14AAdditional proxy soliciting materials - definitiveProxy Filings
04/23/108-KReport of unscheduled material events or corporate eventCurrent Reports
04/21/1010-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
04/21/108-KReport of unscheduled material events or corporate eventCurrent Reports
04/01/104Statement of changes in beneficial ownership of securities3,4,5
04/01/104Statement of changes in beneficial ownership of securities3,4,5
04/01/10   4Statement of changes in beneficial ownership of securities3,4,5
03/31/10   DEFM14AOfficial notification of matters relating to a merger or acquisitionMergers & Acquisitions
03/31/10   8-KReport of unscheduled material events or corporate eventCurrent Reports
03/31/10   DEFA14AAdditional proxy soliciting materials - definitiveProxy Filings
03/16/10   8-KReport of unscheduled material events or corporate eventCurrent Reports
03/16/10   DEFA14AAdditional proxy soliciting materials - definitiveProxy Filings
03/15/10   4Statement of changes in beneficial ownership of securities3,4,5
03/15/10   3Initial filing by director officer or owner of more than ten percent3,4,5
03/10/10   SC 13G/AAn amendment to the SC 13G filingOther
03/04/10   PREM14AA preliminary proxy statement relating to a merger or acquisitionMergers & Acquisitions
03/03/10   10-K/AAmendment to a previously filed 10-KAnnual Filings
02/19/10SC 13D/AAn amendment to a SC 13D filingOther
02/18/108-KReport of unscheduled material events or corporate eventCurrent Reports
02/18/10  DEFA14AAdditional proxy soliciting materials - definitiveProxy Filings
02/18/10DEFA14A  Additional proxy soliciting materials - definitiveProxy Filings
02/12/104Statement of changes in beneficial ownership of securities3,4,5
02/12/10   4Statement of changes in beneficial ownership of securities3,4,5
02/12/10   4Statement of changes in beneficial ownership of securities3,4,5
02/10/108-KReport of unscheduled material events or corporate eventCurrent Reports
02/10/10  10-KAnnual report which provides a comprehensive overview of the company for the past yearAnnual Filings
02/10/108-KReport of unscheduled material events or corporate eventCurrent Reports
02/01/10   4/AAmendment to a previously filed 43,4,5
01/29/10SC 13D  Filing by person(s) reporting owned shares of common stock in a public company >5%Other
01/29/108-KReport of unscheduled material events or corporate eventCurrent Reports
01/11/10   8-KReport of unscheduled material events or corporate eventCurrent Reports
01/08/10SC 13GA statement of beneficial ownership of common stock by certain personsOther
01/04/10  4Statement of changes in beneficial ownership of securities3,4,5
01/04/10  4Statement of changes in beneficial ownership of securities3,4,5
01/04/10  4Statement of changes in beneficial ownership of securities3,4,5


2009
Filing DateFormDescriptionFiling Group
12/10/09   SC 13G/AAn amendment to the SC 13G filingOther
12/07/09  4Statement of changes in beneficial ownership of securities3,4,5
12/07/098-KReport of unscheduled material events or corporate eventCurrent Reports
12/04/094Statement of changes in beneficial ownership of securities3,4,5
12/04/094Statement of changes in beneficial ownership of securities3,4,5
12/04/094Statement of changes in beneficial ownership of securities3,4,5
12/04/094Statement of changes in beneficial ownership of securities3,4,5
12/04/094Statement of changes in beneficial ownership of securities3,4,5
12/04/094Statement of changes in beneficial ownership of securities3,4,5
12/04/098-KReport of unscheduled material events or corporate eventCurrent Reports
11/19/098-KReport of unscheduled material events or corporate eventCurrent Reports
11/13/09  4Statement of changes in beneficial ownership of securities3,4,5
10/21/0910-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
10/20/098-KReport of unscheduled material events or corporate eventCurrent Reports
10/02/09   4Statement of changes in beneficial ownership of securities3,4,5
09/02/098-KReport of unscheduled material events or corporate eventCurrent Reports
08/14/09  4Statement of changes in beneficial ownership of securities3,4,5
07/23/0910-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
07/23/098-KReport of unscheduled material events or corporate eventCurrent Reports
07/01/09 4Statement of changes in beneficial ownership of securities3,4,5
06/25/0911-KAn annual report of employee stock purchase, savings and similar plansAnnual Filings
06/08/098-KReport of unscheduled material events or corporate eventCurrent Reports
06/01/098-KReport of unscheduled material events or corporate eventCurrent Reports
05/20/098-KReport of unscheduled material events or corporate eventCurrent Reports
05/19/098-KReport of unscheduled material events or corporate eventCurrent Reports
05/14/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/09 4Statement of changes in beneficial ownership of securities3,4,5
05/13/098-KReport of unscheduled material events or corporate eventCurrent Reports
04/21/098-KReport of unscheduled material events or corporate eventCurrent Reports
04/21/0910-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
04/01/09 4Statement of changes in beneficial ownership of securities3,4,5
03/24/09DEF 14AOfficial notification to shareholders of matters to be brought to a vote ("Proxy")Proxy Filings
03/09/09 4Statement of changes in beneficial ownership of securities3,4,5
03/06/09 4Statement of changes in beneficial ownership of securities3,4,5
02/17/09 4Statement of changes in beneficial ownership of securities3,4,5
02/17/09SC 13G/AAn amendment to the SC 13G filingOther
02/13/0910-KAnnual report which provides a comprehensive overview of the company for the past yearAnnual Filings
02/06/09 4Statement of changes in beneficial ownership of securities3,4,5
02/06/093Initial filing by director officer or owner of more than ten percent3,4,5
02/06/098-KReport of unscheduled material events or corporate eventCurrent Reports
02/06/098-KReport of unscheduled material events or corporate eventCurrent Reports
02/05/09SC 13GA statement of beneficial ownership of common stock by certain personsOther
01/29/098-KReport of unscheduled material events or corporate eventCurrent Reports
01/05/09 4Statement of changes in beneficial ownership of securities3,4,5


2008
Filing DateFormDescriptionFiling Group
12/05/08   4Statement of changes in beneficial ownership of securities3,4,5
12/05/08   4Statement of changes in beneficial ownership of securities3,4,5
12/05/08   4Statement of changes in beneficial ownership of securities3,4,5
12/05/08   4Statement of changes in beneficial ownership of securities3,4,5
12/05/08   4Statement of changes in beneficial ownership of securities3,4,5
12/05/08   4Statement of changes in beneficial ownership of securities3,4,5
12/05/08   4Statement of changes in beneficial ownership of securities3,4,5
12/05/088-KReport of unscheduled material events or corporate eventCurrent Reports
12/04/08   4Statement of changes in beneficial ownership of securities3,4,5
12/04/083Initial filing by director officer or owner of more than ten percent3,4,5
12/04/088-KReport of unscheduled material events or corporate eventCurrent Reports
11/25/088-KReport of unscheduled material events or corporate eventCurrent Reports
11/14/08   4Statement of changes in beneficial ownership of securities3,4,5
10/20/0810-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
10/20/088-KReport of unscheduled material events or corporate eventCurrent Reports
10/01/08   4Statement of changes in beneficial ownership of securities3,4,5
09/25/088-KReport of unscheduled material events or corporate eventCurrent Reports
09/22/088-KReport of unscheduled material events or corporate eventCurrent Reports
09/18/088-KReport of unscheduled material events or corporate eventCurrent Reports
09/16/088-KReport of unscheduled material events or corporate eventCurrent Reports
08/14/08   4Statement of changes in beneficial ownership of securities3,4,5
07/22/0810-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
07/22/088-KReport of unscheduled material events or corporate eventCurrent Reports
07/01/08   4Statement of changes in beneficial ownership of securities3,4,5
06/27/088-KReport of unscheduled material events or corporate eventCurrent Reports
06/24/0811-KAn annual report of employee stock purchase, savings and similar plansAnnual Filings
05/30/088-KReport of unscheduled material events or corporate eventCurrent Reports
05/14/08   4Statement of changes in beneficial ownership of securities3,4,5
05/14/08S-8Securities offered to employees pursuant to employee benefit plansRegistration Statements
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/08   4Statement of changes in beneficial ownership of securities3,4,5
05/13/088-KReport of unscheduled material events or corporate eventCurrent Reports
04/28/08   4Statement of changes in beneficial ownership of securities3,4,5
04/25/08   4Statement of changes in beneficial ownership of securities3,4,5
04/22/0810-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
04/22/088-KReport of unscheduled material events or corporate eventCurrent Reports
04/01/08   4Statement of changes in beneficial ownership of securities3,4,5
03/24/08DEF 14AOfficial notification to shareholders of matters to be brought to a vote ("Proxy")Proxy Filings
02/26/08   4Statement of changes in beneficial ownership of securities3,4,5
02/21/0810-KAnnual report which provides a comprehensive overview of the company for the past yearAnnual Filings
02/21/088-KReport of unscheduled material events or corporate eventCurrent Reports
02/15/08   4Statement of changes in beneficial ownership of securities3,4,5
02/14/08   SC 13G/AAn amendment to the SC 13G filingOther
02/13/088-KReport of unscheduled material events or corporate eventCurrent Reports
02/12/08SC 13GA statement of beneficial ownership of common stock by certain personsOther
02/07/08   4Statement of changes in beneficial ownership of securities3,4,5
02/06/08   4Statement of changes in beneficial ownership of securities3,4,5
02/06/08   SC 13G/AAn amendment to the SC 13G filingOther
02/05/08SC 13GA statement of beneficial ownership of common stock by certain personsOther
02/05/08SC 13GA statement of beneficial ownership of common stock by certain personsOther
02/05/08SC 13GA statement of beneficial ownership of common stock by certain personsOther
02/05/08SC 13GA statement of beneficial ownership of common stock by certain personsOther
02/05/08SC 13GA statement of beneficial ownership of common stock by certain personsOther
02/05/08SC 13GA statement of beneficial ownership of common stock by certain personsOther
01/31/088-KReport of unscheduled material events or corporate eventCurrent Reports
01/02/08   4Statement of changes in beneficial ownership of securities3,4,5


2007
Filing DateFormDescriptionFiling Group
12/12/078-KReport of unscheduled material events or corporate eventCurrent Reports
12/06/07   4Statement of changes in beneficial ownership of securities3,4,5
12/06/07   4Statement of changes in beneficial ownership of securities3,4,5
12/06/07   4Statement of changes in beneficial ownership of securities3,4,5
12/06/07   4Statement of changes in beneficial ownership of securities3,4,5
12/06/07   4Statement of changes in beneficial ownership of securities3,4,5
12/06/07   4Statement of changes in beneficial ownership of securities3,4,5
12/06/078-KReport of unscheduled material events or corporate eventCurrent Reports
11/15/07   4Statement of changes in beneficial ownership of securities3,4,5
10/22/0710-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
10/22/078-KReport of unscheduled material events or corporate eventCurrent Reports
10/01/07   4Statement of changes in beneficial ownership of securities3,4,5
09/12/078-KReport of unscheduled material events or corporate eventCurrent Reports
08/24/07   4Statement of changes in beneficial ownership of securities3,4,5
08/22/07   4Statement of changes in beneficial ownership of securities3,4,5
08/16/07   4Statement of changes in beneficial ownership of securities3,4,5
08/14/07   4Statement of changes in beneficial ownership of securities3,4,5
08/07/07   4Statement of changes in beneficial ownership of securities3,4,5
08/03/07   4Statement of changes in beneficial ownership of securities3,4,5
07/30/07   4Statement of changes in beneficial ownership of securities3,4,5
07/27/07   4Statement of changes in beneficial ownership of securities3,4,5
07/24/07  10-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
07/24/078-KReport of unscheduled material events or corporate eventCurrent Reports
07/02/07  4Statement of changes in beneficial ownership of securities3,4,5
06/28/0711-KAn annual report of employee stock purchase, savings and similar plansAnnual Filings
06/06/07S-8 POSPost-effective amendment to an S-8 filingRegistration Statements
06/05/07S-8Securities offered to employees pursuant to employee benefit plansRegistration Statements
06/04/07S-8 POSPost-effective amendment to an S-8 filingRegistration Statements
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/07   4Statement of changes in beneficial ownership of securities3,4,5
05/24/078-KReport of unscheduled material events or corporate eventCurrent Reports
05/11/07   4Statement of changes in beneficial ownership of securities3,4,5
04/23/078-KReport of unscheduled material events or corporate eventCurrent Reports
04/23/07  10-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
04/05/07  DEF 14AOfficial notification to shareholders of matters to be brought to a vote ("Proxy")Proxy Filings
04/02/07   4Statement of changes in beneficial ownership of securities3,4,5
02/16/07  10-KAnnual report which provides a comprehensive overview of the company for the past yearAnnual Filings
02/16/07  8-KReport of unscheduled material events or corporate eventCurrent Reports
02/15/07   4Statement of changes in beneficial ownership of securities3,4,5
02/14/07SC 13GA statement of beneficial ownership of common stock by certain personsOther
02/12/07SC 13GA statement of beneficial ownership of common stock by certain personsOther
01/31/07  8-KReport of unscheduled material events or corporate eventCurrent Reports
01/23/07SC 13GA statement of beneficial ownership of common stock by certain personsOther
01/10/07  SC 13G/AAn amendment to the SC 13G filingOther
01/05/07   4Statement of changes in beneficial ownership of securities3,4,5
01/05/07   4Statement of changes in beneficial ownership of securities3,4,5
01/04/07   4Statement of changes in beneficial ownership of securities3,4,5


2006
Filing DateFormDescriptionFiling Group
12/11/06   4Statement of changes in beneficial ownership of securities3,4,5
12/11/06    8-KReport of unscheduled material events or corporate eventCurrent Reports
12/08/06   4Statement of changes in beneficial ownership of securities3,4,5
12/08/06   4Statement of changes in beneficial ownership of securities3,4,5
12/08/06   4Statement of changes in beneficial ownership of securities3,4,5
12/08/06   4Statement of changes in beneficial ownership of securities3,4,5
12/08/06   4Statement of changes in beneficial ownership of securities3,4,5
12/07/06    8-KReport of unscheduled material events or corporate eventCurrent Reports
12/06/06   4Statement of changes in beneficial ownership of securities3,4,5
11/29/06    8-KReport of unscheduled material events or corporate eventCurrent Reports
11/17/06   4Statement of changes in beneficial ownership of securities3,4,5
10/23/06  10-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
10/23/06     8-KReport of unscheduled material events or corporate eventCurrent Reports
10/04/06   4Statement of changes in beneficial ownership of securities3,4,5
09/13/06     8-KReport of unscheduled material events or corporate eventCurrent Reports
08/14/06    4Statement of changes in beneficial ownership of securities3,4,5
08/01/06   8-KReport of unscheduled material events or corporate eventCurrent Reports
07/28/06   4Statement of changes in beneficial ownership of securities3,4,5
07/24/06   8-KReport of unscheduled material events or corporate eventCurrent Reports
07/24/06   10-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
07/06/06    4Statement of changes in beneficial ownership of securities3,4,5
07/06/06    4Statement of changes in beneficial ownership of securities3,4,5
07/05/06    3Initial filing by director officer or owner of more than ten percent3,4,5
06/29/06    4Statement of changes in beneficial ownership of securities3,4,5
06/29/0611-KAn annual report of employee stock purchase, savings and similar plansAnnual Filings
05/26/06S-8Securities offered to employees pursuant to employee benefit plansRegistration Statements
05/26/06   8-KReport of unscheduled material events or corporate eventCurrent Reports
05/25/06    4Statement of changes in beneficial ownership of securities3,4,5
05/25/06    4Statement of changes in beneficial ownership of securities3,4,5
05/25/06    4Statement of changes in beneficial ownership of securities3,4,5
05/24/06    4Statement of changes in beneficial ownership of securities3,4,5
05/24/06    4Statement of changes in beneficial ownership of securities3,4,5
05/24/06    4Statement of changes in beneficial ownership of securities3,4,5
05/24/06    4Statement of changes in beneficial ownership of securities3,4,5
05/24/06    4Statement of changes in beneficial ownership of securities3,4,5
05/17/06    4Statement of changes in beneficial ownership of securities3,4,5
04/20/06   8-KReport of unscheduled material events or corporate eventCurrent Reports
04/20/06     10-QQuarterly report which provides a continuing view of a company's financial positionQuarterly Filings
04/05/06DEF 14AOfficial notification to shareholders of matters to be brought to a vote ("Proxy")Proxy Filings
04/04/06 4Statement of changes in beneficial ownership of securities3,4,5
03/14/06PRE 14AA preliminary proxy statement providing notification matters to be brought to a voteProxy Filings
03/13/06    4Statement of changes in beneficial ownership of securities3,4,5
02/16/06  10-KAnnual report which provides a comprehensive overview of the company for the past yearAnnual Filings
02/14/06  SC 13G/AAn amendment to the SC 13G filingOther
02/09/06   8-KReport of unscheduled material events or corporate eventCurrent Reports
02/09/06  3Initial filing by director officer or owner of more than ten percent3,4,5
02/09/06   8-KReport of unscheduled material events or corporate eventCurrent Reports
02/09/06   4Statement of changes in beneficial ownership of securities3,4,5
02/08/06   4Statement of changes in beneficial ownership of securities3,4,5
02/08/06  SC 13D/AAn amendment to a SC 13D filingOther
02/07/06  8-KReport of unscheduled material events or corporate eventCurrent Reports
02/01/06  8-KReport of unscheduled material events or corporate eventCurrent Reports
01/25/06  3Initial filing by director officer or owner of more than ten percent3,4,5
01/24/06  8-KReport of unscheduled material events or corporate eventCurrent Reports
 
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