UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

January 5, 2017

Date of Report (Date of earliest event reported)

Installed Building Products, Inc.

(Exact name of registrant as specified in its charter)

495 South High Street, Suite 50

Columbus, Ohio 43215

(Address of principal executive offices, including zip code)

(614) 221-3399

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions (see General Instructions A.2. below):

Explanatory Note.

This Form 8-K/A is filed as an amendment (“Amendment No. 1”) to the Current Report on Form 8-K by Installed Building Products, Inc. (“we,” “us,” and “our”) under Items 2.01 and 9.01 on January 5, 2017 (the “Original 8-K”). Amendment No. 1 is being filed in order to provide certain financial statements and to furnish certain pro forma financial information pursuant to Item 9.01 of this Form 8-K/A.

On January 5, 2017, we consummated our previously announced acquisition (the “Acquisition”) of all of the outstanding shares of (i) Trilok Industries, Inc. (“Trilok”), (ii) Alpha Insulation & Waterproofing, Inc. (“Alpha”), and (iii) Alpha Insulation & Waterproofing Company (“Alpha Company” and together with Trilok and Alpha, the “Alpha Companies”). We acquired the Alpha Companies from entities affiliated with Vikas Verma and Henry Schmueckle pursuant to a Share Purchase Agreement, dated October 29, 2016, among (i) EMPER Holdings, LLC, an indirect wholly owned subsidiary of the Company, (ii) each of PREEM Holdings I, LLC and PREEM Holdings II, LLC, (iii) each of Vikas Verma and Henry Schmueckle, (iv) Vikas Verma in his capacity as the Equityholders’ representative and (v) the Company.

Founded in 1982, the Alpha Companies are headquartered in Atlanta, Georgia and serve commercial customers through an expanding network of nine branch locations located in Georgia, Florida, Texas, Tennessee and North Carolina. The Alpha Companies’ products include waterproofing, insulation, fireproofing and fire stopping. The Alpha Companies service large, long-lead time commercial projects including office buildings, airports, sports complexes, museums, hospitals, hotels and educational facilities.

The aggregate consideration for the Acquisition was $116.7 million (the “Purchase Price”). We paid $10.9 million of the Purchase Price by issuing 282,577 shares of our common stock as adjusted for a marketability adjustment. Of the remaining amount, we paid $81.9 million in cash and recorded seller obligations totaling $1.9 million. The Purchase Price also includes customary adjustments for cash and net working capital, earnout consideration based on the Alpha Companies’ change in EBITDA from 2015, and a customary holdback. We paid approximately $21.7 million to satisfy these items on March 7, 2017. Lastly, we assumed $0.3 million in debt of the Alpha Companies.

The following historical financial statements are filed as Exhibit 99.1 to this report and incorporated in their entirety herein by reference:

The following pro forma financial information is filed as Exhibit 99.2 to this report and incorporated in its entirety herein by reference:

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.

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