# ZENITH NATIONAL INSURANCE CORP

ZENITH NATIONAL INSURANCE CORP is a company headquartered in Woodland Hills, CA, United States.

## Company overview

- **Legal name:** ZENITH NATIONAL INSURANCE CORP
- **Classification:** Company
- **Industry (SIC):** 6331 — Fire, Marine & Casualty Insurance
- **Headquarters:** Woodland Hills, CA, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0000109261

## About

ZENITH NATIONAL INSURANCE CORP is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000109261, and its reported industry is Fire, Marine & Casualty Insurance. The retained history contains 12 filings, including 8-K filed on 2010-05-26. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 8-K — filed 2010-05-26 — period 2010-05-20 — 8-K
- Form SC 13D — filed 2010-05-07
- Form 8-K — filed 2010-05-04 — period 2010-04-29 — 8-K
- Form 8-K — filed 2010-05-03 — period 2010-04-29 — 8-K
- Form SC 13G — filed 2010-04-26 — ZENITH NATIONAL INSURANCE CORP.
- Form 8-K — filed 2010-04-23 — period 2010-04-22 — 8-K
- Form 10-Q — filed 2010-04-21 — period 2010-03-31 — 10-Q
- Form 8-K — filed 2010-04-21 — period 2010-04-21 — 8-K
- Form 8-K — filed 2010-03-31 — period 2010-03-31 — 8-K
- Form 8-K — filed 2010-03-16 — period 2010-03-16 — 8-K
- Form 10-K/A — filed 2010-03-03 — period 2009-12-31 — 10-K/A
- Form 8-K — filed 2010-02-18 — period 2010-02-17 — 8-K

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Updated: 2026-10-23T22:53:27Z

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