Exhibit 10.1 2004 Long-Term Incentive Plan Performance Unit Award Agreement W. R. Berkley Corporation January 1, 2008 W. R. Berkley Corporation 2004 Long-Term Incentive Plan Performance Unit Award Agreement THIS AGREEMENT, effective January 1, 2008,...Performance Unit Award Agreement • March 13th, 2008 • Berkley W R Corp • Fire, marine & casualty insurance
