X0303 4 2010-05-20 1 0000109261 ZENITH NATIONAL INSURANCE CORP ZNT 0001292209 Reynolds Catherine B PO BOX 9870 MCLEAN VA 22102 1 0 0 0 Common Stock 2010-05-20 4 D 0 11750 38.00 D 0 D Common Stock 2010-05-20 4 D 0 9140 38.00 D 0 I See Footnote Common Stock 2010-05-20 4 D 0 1205 38. D 0 I See Footnote Disposed of pursuant to the Agreement and Plan of Merger, dated as of February 17, 2010, among Zenith National Insurance Corp., Fairfax Financial Holdings Limited and Fairfax Investments II USA Corp. for cash consideration equal to $38 per share. Held by spouse. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for the purpose of Section 16 or for any other purpose. Held in spouse's Individual Retirement Account. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for the purpose of Section 16 or for any other purpose. Exhibit List - Exhibit 24, Power of Attorney /s/ Hyman J. Lee Jr., attorney-in-fact 2010-05-24