Item 5.02. Departure of Directors or Certain Officers; Election of Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

5.02(d) - On October 15, 2012, the Board of Directors (the "Board") of F5 Networks, Inc. (the "Company") elected Michael L. Dreyer as a Class I director. Mr. Dreyer will serve as a member of the Board's Audit Committee. In connection with his services as a director, Mr. Dreyer will be entitled to the customary compensation arrangements for the Company's non-employee directors; an annual retainer in the amount of $50,000 and an annual payment of $15,000 as a member of the Audit Committee. In addition, Mr. Dreyer will be awarded 849 restricted stock units ("RSUs") under the Company's 2005 Equity Incentive Plan, which grant shall be issued on November 1, 2012, and would fully vest on the day prior to the annual meeting of shareholders for fiscal year 2012.

Item 8.01. Other Events.

On October 16, 2012, the Company issued a press release announcing Mr. Dreyer's election to the Board. A copy of the press release is furnished as Exhibit 99.1 to this Form 8-K and is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1 Press Release of F5 Networks, Inc. dated October 16, 2012.

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