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): August 16, 2016 (August 15, 2016)

Rexford Industrial Realty, Inc.

(Exact Name of Registrant as Specified in Its Charter)

(310) 996-1680

(Registrant’s telephone number including area code)

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 3.03. Material Modifications to Rights of Security Holders.

On August 15, 2016, Rexford Industrial Realty, Inc. (the “Company”) filed with the State Department of Assessments and Taxation of the State of Maryland Articles Supplementary (the “Articles Supplementary”) to the Company’s Articles of Amendment and Restatement, classifying and designating 3,600,000 shares of the Company’s authorized capital stock as shares of 5.875% Series A Cumulative Redeemable Preferred Stock, par value $0.01 per share (“Series A Preferred Stock”). As set forth in the Articles Supplementary, the Series A Preferred Stock ranks senior to the Company’s common stock, par value $0.01 per share (“Common Stock”), on parity with the Company’s future capital stock that the Company may later authorize or issue and that by their terms are on a parity with the Series A Preferred Stock, and junior to any other class of the Company’s stock expressly designated as ranking senior to the Series A Preferred Stock. Holders of Series A Preferred Stock, when and as authorized by the board of directors of the Company, are entitled to cumulative cash dividends at the rate of 5.875% per annum of the $25.00 per share liquidation preference per share, equivalent to $1.46875 per annum per share. Dividends are payable quarterly in arrears on or about the last day of March, June, September and December of each year, beginning on December 31, 2016. In addition to other preferential rights, the holders of Series A Preferred Stock are entitled to receive the liquidation preference, which is $25.00 per share, before the holders of Common Stock in the event of any voluntary or involuntary liquidation, dissolution or winding-up of the Company’s affairs.

Generally, Series A Preferred Stock are not redeemable by the Company prior to August 16, 2021. However, upon the occurrence of a “Change of Control” (as defined below), holders of Series A Preferred Stock will have the right (unless, prior to the Change of Control Conversion Date (as defined below), the Company has provided or provides notice of its election to redeem the Series A Preferred Stock) to convert some or all of the Series A Preferred Stock (the “Change of Control Conversion Right”) into a number of shares of Common Stock per Series A Preferred Stock to be converted equal to the lesser of:

subject, in each case, to provisions for the receipt of alternative consideration, as described in the Articles Supplementary.

If the Company has provided or provides a redemption notice, whether pursuant to the Company’s special optional redemption right in connection with a Change of Control or the Company’s optional redemption right, holders of Series A Preferred Stock will not have any right to convert their shares of Series A Preferred Stock in connection with the Change of Control Conversion Right and any shares of Series A Preferred Stock subsequently selected for redemption that have been tendered for conversion will be redeemed on the related date of redemption instead of converted on the Change of Control Conversion Date.

A “Change of Control” is when, after the original issuance of the Series A Preferred Stock, the following have occurred and are continuing:

The “Change of Control Conversion Date” will be a business day occurring within 20 to 35 days following the date on which the Company provides the required notice of the occurrence of a Change of Control to the holders of Series A Preferred Stock.

The “Common Share Price” will be: (i) if the consideration to be received in the Change of Control by holders of shares of the Company’s Common Stock is solely cash, the amount of cash consideration per share of Common Stock, and (ii) if the consideration to be received in the Change of Control by holders of shares of the Company’s Common Stock is other than solely cash, the average of the closing price per share of Common Stock (or, if no closing sale price is reported, the average of the closing bid and ask prices, or if more than one in either case, the average of the average closing bid and the average closing ask prices) for the ten consecutive trading days immediately preceding, but not including, the effective date of the Change of Control.

A complete description of the Series A Preferred Stock is contained in the Articles Supplementary incorporated by reference as Exhibit 3.1 to this Current Report on Form 8-K.

On August 16, 2016, the Company, as General Partner of Rexford Industrial Realty, L.P., its operating partnership subsidiary (the “Operating Partnership”), executed the Third Amended and Restated Agreement of Limited Partnership (the “OP Agreement”), among other things, creating a series of preferred units (the “Series A Preferred Units”) that mirrors the rights and preferences of the Series A Preferred Stock described above. At the closing of the offering, the proceeds were contributed by the Company to the Operating Partnership in exchange for 3,600,000 Series A Preferred Units. This description of the material terms of the amendment to the Partnership Agreement is qualified in its entirety by reference to the amendment to the Partnership Agreement, which is filed as Exhibit 3.5 to this Current Report on Form 8-K and is hereby incorporated by reference into this Item 3.03.

Item 5.03 AMENDMENTS TO ARTICLES OF INCORPORATION OR BYLAWS; CHANGE IN FISCAL YEAR

Information about the Articles Supplementary under Item 3.03 of this Current Report on Form 8-K is incorporated by reference into this Item 5.03.

Item 8.01 OTHER EVENTS

On August 16, 2016, the Company completed an underwritten public offering of 3,600,000 shares of its Series A Preferred Stock (the “Offering”), for net proceeds of approximately $86.9 million after deducting the underwriting discount and other estimated offering expenses. The Offering was made pursuant to the Company’s effective registration statement on Form S-3 (File No. 333-210691), a base prospectus, dated April 11, 2016, included as part of the registration statement, and a prospectus supplement, dated August 9, 2016, filed with the Securities and Exchange Commission pursuant to Rule 424(b) under the Securities Act of 1933, as amended. Attached hereto as Exhibit 5.1 is the opinion of Venable LLP relating to the legality of the shares of Series A Preferred Stock issued in connection with the closing of the offering.

ITEM 9.01 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 thereunto duly authorized.