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): January 9, 2012

Health Net, Inc.

(Exact Name of Registrant as Specified in Charter)

Registrant’s telephone number, including area code: (818) 676-6000

Not Applicable

Former Name or Former 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:

Item 7.01. Regulation FD Disclosure.

On January 9, 2012, members of Health Net, Inc.’s management team (the “Company”) expect to make a presentation and meet with investors and analysts at the 30^th Annual J.P. Morgan Healthcare Conference (the “Conference”). During its presentation and meetings, the Company intends to address its prospects and historical performance, and will reaffirm the Company’s earnings guidance for the full year 2011, as previously announced in a press release issued on November 2, 2011, and the Company’s earnings guidance for the full year 2012, as previously announced in a press release issued on December 19, 2011.

The Company will give its presentation at the Conference at approximately 11:30 a.m. (Eastern Time). A live audio webcast of the presentation will be available in the “Investor Relations – Presentations and Webcasts” section of the Company’s website at www.healthnet.com and a replay of the Company’s presentation as well as the Company’s slides for the presentation will be available on the Company’s website. The Company’s slides for the presentation are also attached to this Current Report on Form 8-K as Exhibit 99.1.

The information in this Item 7.01 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any Company filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.

CAUTIONARY STATEMENT: The Company and its representatives may from time to time make written and oral forward-looking statements within the meaning of the Private Securities Litigation Reform Act (“PSLRA”) of 1995, including statements in this report, in presentations, press releases, filings with the Securities and Exchange Commission (“SEC”), reports to stockholders and in meetings with investors and analysts. All statements in this report, other than statements of historical information provided herein, may be deemed to be forward-looking statements and as such are intended to be covered by the safe harbor for “forward-looking statements” provided by PSLRA. These statements are based on management’s analysis, judgment, belief and expectation only as of the date hereof, and are subject to changes in circumstances and a number of risks and uncertainties. Without limiting the foregoing, statements including the words “believes,” “anticipates,” “plans,” “expects,” “may,” “should,” “could,” “estimate,” “intend,” “feels,” “will,” “projects” and other similar expressions are intended to identify forward-looking statements. Actual results could differ materially from those expressed in, or implied or projected by the forward-looking information and statements due to, among other things, health care reform and other increased government participation in and regulation of health benefits and managed care operations, including the ultimate impact of the Affordable Care Act, which could materially adversely affect the Company’s financial condition, results of operations and cash flows through, among other things, reduced revenues, new taxes, expanded liability, and increased costs (including medical, administrative, technology or other costs), or require changes to the ways in which the Company does business; rising health care costs; continued slow economic growth or a further decline in the economy; negative prior period claims reserve developments; trends in medical care ratios; membership declines; unexpected utilization patterns or unexpectedly severe or widespread illnesses; rate cuts and

other risks and uncertainties affecting the Company’s Medicare or Medicaid businesses; any liabilities of the Northeast business that were incurred prior to the closing of its sale as well as those liabilities incurred through the winding-up and running-out period of the Northeast business; litigation costs; regulatory issues with agencies such as the California Department of Managed Health Care, the Centers for Medicare & Medicaid Services, the Office of Civil Rights of the U.S. Department of Health and Human Services and state departments of insurance; operational issues; failure to effectively oversee our third party vendors; noncompliance by the Company or the Company’s business associates with any privacy laws or any security breach involving the misappropriation, loss or other unauthorized use or disclosure of confidential information; investment portfolio impairment charges; volatility in the financial markets; and general business and market conditions. Additional factors that could cause actual results to differ materially from those reflected in the forward-looking statements include, but are not limited to, the risks discussed in the “Risk Factors” section included within the Company’s most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q filed with the SEC and the risks discussed in the Company’s other filings with the SEC. Readers are cautioned not to place undue reliance on these forward-looking statements. Except as may be required by law, the Company undertakes no obligation to address or publicly update any of its forward-looking statements to reflect events or circumstances that arise after the date of this report.

Section 9- Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

SIGNATURES

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