UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): December 5, 2011

EMPLOYERS HOLDINGS, INC.

(Exact Name of Registrant as Specified in its Charter)

Registrant’s telephone number including area code: (888) 682-6671

No change since last report

(Former Name or Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Section 5 — Corporate Governance and Management

On December 5, 2011, Employers Holdings, Inc. (the “Company”) entered into an employment agreement (each, a “New Employment Agreement”) with each of the following four executives: Ann W. Nelson, Executive Vice President, Corporate and Public Affairs; John P. Nelson, Executive Vice President, Chief Administrative Officer; Lenard T. Ormsby, Executive Vice President, Chief Legal Officer and General Counsel; and William E. Yocke, Executive Vice President and Chief Financial Officer (each, an “Executive” and collectively, the “Executives”). The New Employment Agreements will become effective as of January 1, 2012, and are substantially similar to the agreements that were entered into with each of the Executives on December 17, 2008, and that will terminate December 31, 2011 (such agreements, the “Terminating Agreements”), with the following major differences:

The following description summarizes the New Employment Agreements. The following summaries do not purport to be complete and are qualified in their entirety by reference to the copies of the New Employment Agreements, each of which is attached as an exhibit hereto and incorporated by reference herein.

Summary of the Employment Agreements with Ann W. Nelson, John P. Nelson, Lenard T. Ormsby and William E. Yocke

The term of each of the New Employment Agreements will commence on January 1, 2012, and will continue for two years until December 31, 2013, and thereafter will terminate unless the Company gives written notice to the Executive no later than six months prior to the expiration of the initial term or any successive term, as applicable, of its intent to renew the New Employment Agreement for an additional two-year term.

During the term of their New Employment Agreements, each of Ms. Nelson and Messrs. Nelson, Ormsby and Yocke will receive an annual base salary of $246,000, $282,500, $375,000 and $385,000, respectively, subject to review and adjustment. The Executives will also be entitled to an annual incentive during the term of their New Employment Agreement based on the Executive’s and the Company’s performance, as determined in the sole discretion of the Company’s Board of Directors or a committee thereof. The amount of each Executive’s minimum annual incentive target percentage will be not less than the following percentages of the respective Executive’s base salary: 45% for each of Ms. Nelson and Messrs. Nelson and Ormsby, and 55% for Mr. Yocke. Furthermore, each Executive will be entitled to those benefits and perquisites that the Company from time to time determines to offer.

If, during the term of his or her New Employment Agreement, the Executive terminates his or her employment for good reason or his or her employment is terminated for any reason other than (a) death, (b) disability or (c) by the Company for cause, in each case, other than either during (A) the 18-month period following a change in control of the Company or (B) the six-month period prior to, but in connection with, a change in control of the Company, then the Executive will receive (i) a severance payment equal to two times his or her base salary payable in bi-weekly installments for 24 months, and (ii) continued medical, dental and vision insurance coverage for 18 months following the termination date.

If, during the term of his or her New Employment Agreement, the Executive terminates his or her employment for good reason or his or her employment is terminated for any reason other than (a) death, (b) disability or (c) by the Company for cause, in each case, either during (A) the 18-month period following a change in control of the Company or (B) the six-month period prior to, but in connection with, a change in control of the Company, then the Executive will receive (i) a lump sum cash payment equal to two times the sum of (x) the Executive’s base salary and (y) the average of the annual bonus amounts earned by the Executive for the three years preceding the year in which the change in control occurs, and (ii) continued medical, dental and vision insurance coverage for 18 months following the termination date. In addition, if the Executive will be subject to a golden parachute excise tax imposed pursuant to Section 4999 of the Code, then the Executive’s payments and benefits will be reduced to the extent necessary so that no amount would be subject to such excise tax if the Executive is better off on an after-tax basis with such payments and benefits so reduced.

In exchange for the severance compensation and the other benefits, if during the term of his or her New Employment Agreement the Executive’s employment is terminated by either the

Executive or the Company for any reason other than by reason of the Executive’s death, then, in addition to other restrictive covenants, the Executive will be subject to certain non-competition and non-solicitation restrictions for 18 months after the termination date. Additionally, the Executive will be required to sign a global release of liability.

Section 9 — Financial Statements and Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: December 7, 2011

Exhibit Index