On February 12, 2013, Willis Group Holdings Public Limited Company (the "Company") issued a press release reporting results for the fourth quarter and year ended December 31, 2012 and posted a slide presentation to its website which it may refer to during its conference call to discuss the results. Copies of the press release and slide presentation are attached as Exhibit 99.1 and Exhibit 99.2, respectively, to this Report on Form 8-K and are incorporated herein by reference.

(e) Each executive officer of the Company is eligible to receive an annual award under the Company's Annual Incentive Plan (the "AIP"). The AIP is a discretionary plan. AIP awards are granted in conjunction with the Willis Group Senior Management Incentive Plan ("SMIP") to the extent named executive officers are "covered employees" within the meaning of Section 162(m) of the Internal Revenue Code of 1986, as amended. The Compensation Committee can take a range of performance metrics into consideration when determining amounts payable under the SMIP, including, among other things, revenue and profit metrics. On February 7, 2013, the Compensation Committee approved a change in the financial metrics used, in part in determining awards, to be organic revenue growth and adjusted organic EBITDA growth for the 2013 performance period.

The slide presentation referred to in Item 2.02 above is attached hereto as Exhibit 99.2 and incorporated herein by reference.

(d) Exhibits

Exhibit
Number                                    Description

99.1         Willis Group Holdings Public Limited Company Earnings Press Release
             issued February 12, 2013

99.2         Slide Presentation - Willis Group Holdings Fourth Quarter 2012 Results