UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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): April 30, 2018

DUKE REALTY CORPORATION

DUKE REALTY LIMITED PARTNERSHIP

(Exact name of registrant specified in its charter)

Duke Realty Corporation:

Duke Realty Limited Partnership:

600 East 96th Street

Suite 100

Indianapolis, IN 46240

(Address of Principal Executive Offices, Zip Code)

Registrant’s telephone number, including area code: (317) 808-6000

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:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Explanatory Note

On August 9, 2016, Duke Realty Corporation, an Indiana corporation (the “Company”), and Duke Realty Limited Partnership, an Indiana limited partnership (the “Operating Partnership”), of which the Company is the sole general partner, entered into an Equity Distribution Agreement (the “Equity Distribution Agreement”) with Barclays Capital Inc., BB&T Capital Markets, a division of BB&T Securities, LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC, RBC Capital Markets, LLC, Scotia Capital (USA) Inc., and Wells Fargo Securities, LLC, as sales agents and/or principals (the “Agents”). A copy of the Equity Distribution Agreement is filed as Exhibit 1.1 to the combined Current Report on Form 8-K filed by the Company and the Operating Partnership on August 9, 2016. Under the terms of the Equity Distribution Agreement, the Company may sell shares of its common stock, $0.01 par value per share, from time to time, to or through the Agents, up to an aggregate offering price of $200,000,000 (the “Offering”). The shares were initially offered pursuant to the Company’s shelf registration statement on Form S-3 (Registration No. 333-203744), which became effective upon filing with the Securities and Exchange Commission (the “Commission”) on April 30, 2015 (the “2015 Registration Statement”). On April 30, 2018, the Company and the Operating Partnership filed a new registration statement on Form S-3, which became effective upon filing with the Commission (the “Registration Statement”), to replace the expiring 2015 Registration Statement. Also on April 30, 2018, the Company filed a prospectus supplement pursuant to Rule 424(b)(5) related to the securities that remain unsold pursuant to the Offering. This Current Report on Form 8-K (the “Report”) is being filed to provide exhibits to be incorporated by reference into the Registration Statement.

The materials that are being filed as exhibits to this Report are being filed pursuant to Item 601 of the Commission’s Regulation S-K in lieu of filing the otherwise required exhibits to the Registration Statement. This Report is incorporated by reference into the Registration Statement, and, as such, the Company and the Operating Partnership are incorporating by reference the exhibits to this Report to cause them to be incorporated by reference into the Registration Statement as exhibits thereto. By filing this Report, and the exhibits hereto, however, neither the Company nor the Operating Partnership believe that any of the information set forth herein or in the exhibits hereto represent, either individually or in the aggregate, a “fundamental change” (as such term is used in Item 512(a)(1)(ii) of the Commission’s Regulation S-K) in the information set forth in, and incorporated by reference into, the Registration Statement.

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.

Dated: April 30, 2018