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 23, 2013 (December 23, 2013)

CUMULUS MEDIA INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (404) 949-0700

n/a

(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 1.01 — Entry into a Material Definitive Agreement.

On December 23, 2013, Cumulus Media Inc. (the “Company”) entered into an Amended and Restated Credit Agreement (the “Credit Agreement”), dated as of December 23, 2013, with Cumulus Media Holdings Inc., a direct wholly-owned subsidiary of the Company (“Cumulus Holdings”), as Borrower, certain lenders, JPMorgan Chase Bank, N.A. (“JPMorgan”), as a lender and Administrative Agent, Royal Bank of Canada and Macquarie Capital (USA) Inc., as co-syndication agents, and Credit Suisse AG, Cayman Islands Branch, Fifth Third Bank, Goldman Sachs Bank USA and ING Capital LLC, as co-documentation agents.

The Credit Agreement consists of a $2.025 billion term loan (the “Term Loan”) maturing in December 2020 and a $200.0 million revolving credit facility (the “Revolving Credit Facility”) maturing in December 2018. Under the Revolving Credit Facility, up to $30.0 million of availability may be drawn in the form of letters of credit.

Cumulus Holdings used Term Loan borrowings of $2.025 billion to repay in full all amounts outstanding under the first lien term loan and second lien term loan under the Company’s pre-existing credit agreements. No amounts are outstanding under the Revolving Credit Facility.

Term Loan borrowings and borrowings under the Revolving Credit Facility bear interest, at the option of Cumulus Holdings, based on the Base Rate (as defined below) or the London Interbank Offered Rate (“LIBOR”), in each case plus 3.25% on LIBOR-based borrowings and 2.25% on Base Rate-based borrowings. LIBOR-based borrowings are subject to a LIBOR floor of 1.0% under the Term Loan. Base Rate-based borrowings are subject to a Base Rate Floor of 2.0% under the Term Loan. Base Rate is defined, for any day, as the fluctuating rate per annum equal to the highest of (i) the Federal Funds Rate, as published by the Federal Reserve Bank of New York, plus 1/2 of 1.0%, (ii) the prime commercial lending rate of JPMorgan, as established from time to time, and (iii) 30 day LIBOR plus 1.0%. Amounts outstanding under the Term Loan amortize at a rate of 1.0% per annum of the original principal amount of the Term Loan, payable quarterly, commencing March 31, 2014, with the balance payable on the maturity date.

Term Loan and Revolving Credit Facility borrowings currently bear interest at 4.25% per annum.

The representations, covenants and events of default in the Credit Agreement are customary for financing transactions of this nature. Events of default in the Credit Agreement include, among others: (a) the failure to pay when due the obligations owing thereunder; (b) the failure to perform (and not timely remedy, if applicable) certain covenants; (c) certain defaults and accelerations under other indebtedness; (d) the occurrence of bankruptcy or insolvency events; (e) certain judgments against the Company or any of its restricted subsidiaries; (f) the loss, revocation or suspension of, or any material impairment in the ability to use of or more of, any material Federal Communications Commission licenses; (g) any representation or warranty made, or report, certificate or financial statement delivered, to the lenders subsequently proven to have been incorrect in any material respect; and (h) the occurrence of a Change in Control (as defined in Credit Agreement). Upon the occurrence of an event of default, the lenders may terminate the loan commitments, accelerate all loans and exercise any of their rights under the Credit Agreement and the ancillary loan documents as a secured party.

Certain mandatory prepayments on the Term Loan are required upon the occurrence of specified events, including upon the incurrence of certain additional indebtedness, upon the sale of certain assets and upon the occurrence of certain condemnation or casualty events, and from excess cash flow.

The Company’s, Cumulus Holdings’ and their respective restricted subsidiaries’ obligations under the Credit Agreement are collateralized by a first priority lien on substantially all of the Company’s, Cumulus Holdings’ and their respective restricted subsidiaries’ assets in which a security interest may lawfully be granted, including, without limitation, intellectual property and substantially all of the capital stock of the Company’s direct and indirect domestic wholly-owned subsidiaries and 66% of the capital stock of any future first-tier foreign subsidiaries. In addition, Cumulus Holdings’ obligations under the Credit Agreement are guaranteed by the Company and substantially all of its restricted subsidiaries, other than Cumulus Holdings.

Some of the agents and lenders under the Credit Agreement, or their affiliates, have had in the past, and may have, in the future, various relationships with the Company involving the provision of financial or other advisory services, including cash management, investment banking and brokerage services. These agents and lenders, or their respective affiliates, have received, and may in the future receive, customary fees and expenses for those services.

The foregoing description of the Credit Agreement is qualified in its entirety by reference to the Credit Agreement, a copy of which is filed as Exhibit 10.1 to this current report on Form 8-K and incorporated by reference herein.

On December 23, 2013, the Company issued a press release announcing its entry into the Credit Agreement, a copy of which press release is filed as Exhibit 99.1 to this current report on Form 8-K and incorporated by reference herein.

Item 2.03 — Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information regarding the Term Loan and the Revolving Credit Facility contained above under Item 1.01 is incorporated by reference herein.

Item 9.01 — Financial Statements and Exhibits.

(d) Exhibits.

SIGNATURES

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.

Date: December 23, 2013

Exhibit Index