UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 11, 2018 (August 13, 2018)

PGT Innovations, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (941) 480-1600

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:

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.  ☐

This Amendment No. 1 to Current Report on Form 8-K/A (“Amendment”) is being filed by PGT Innovations, Inc. (the “Company”) solely for the purpose of amending and supplementing Item 9.01 of that certain Current Report on Form 8-K originally filed by the Company with the Securities and Exchange Commission (“SEC”) on August 13, 2018 (the “Original Form 8-K”) in connection with the acquisition by the Company of all of the equity interests of GEF WW Parent LLC, a Delaware limited liability company and a parent company of WWS Acquisition, LLC d/b/a Western Window Systems (“GEF WW”), and WWS Blocker LLC, a Delaware limited liability company (“Blocker,” and, together with GEF WW, “Western Window Systems”) pursuant to the terms of a definitive purchase agreement dated as of July 24, 2018 (the “Purchase Agreement”) by and among the Company, Coyote Acquisition Co., a Delaware corporation and a wholly owned subsidiary of the Company, GEF WW, Blocker and various entities that collectively owned all of the equity interests of GEF WW (collectively, the “Sellers”). As indicated in the Original Form 8-K, this Amendment is being filed to provide the information required by Item 9.01(a) and (b) of Form 8-K, which was not previously filed with the Original Form 8-K, and is permitted to be filed by amendment no later than 71 calendar days after the date the Original Form 8-K was required to be filed with the SEC.

The information contained in Items 9.01(a) and 9.01(b) is incorporated herein by reference.

(a) Financial statements of businesses acquired.

The audited consolidated balance sheets of Western Window Systems as of December 31, 2017, 2016 and 2015 and the audited consolidated statements of operations, members’ equity and cash flows of Western Window Systems for the years ended December 31, 2017 and 2016, the five-month period ended December 31, 2015 (Successor) and the seven-month period ended July 31, 2015 (Predecessor) are filed as Exhibit 99.1 hereto and are incorporated herein by reference.

The unaudited condensed consolidated balance sheet of Western Window Systems as of June 30, 2018 and the unaudited condensed consolidated statement of operations and cash flows of Western Window Systems for the six months ended June 30, 2018 and 2017 are filed as Exhibit 99.2 hereto and are incorporated herein by reference.

(b) Pro forma financial information.

The unaudited pro forma condensed combined consolidated balance sheet of the Company as of June 30, 2018 and the unaudited pro forma condensed combined consolidated statements of operations of the Company for the year ended December 30, 2017 and the six months ended June 30, 2018 are filed as Exhibit 99.3 hereto and are incorporated herein by reference.

(d) Exhibits.

This Current Report on Form 8-K, together with the exhibits attached hereto (collectively, this “Form 8-K”), contains “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934 (the “Exchange

Act”) and the Private Securities Litigation Reform Act of 1995. These “forward-looking statements” involve risks and uncertainties which could cause actual results to differ materially from those contained in the forward-looking statements. Such forward-looking statements generally can be identified by the use of forward-looking terminology, such as “may,” “expect,” “expectations,” “outlook,” “forecast,” “guidance,” “intend,” “believe,” “could,” “project,” “estimate,” “anticipate,” “should” and similar terminology. These risks and uncertainties include factors such as:

Statements in this Form 8-K that are forward-looking statements include, without limitation, our expectations regarding: the assumptions and estimates made in the unaudited pro forma financial statements, including with respect to the valuation of assets for the purposes of purchase price accounting and allocation and the realization of the expected benefits of the acquisition of Western Window Systems, including the ability to sell products of the Western Window Systems operations profitably in the near term or at all in the repair and remodel market and in PGT Innovations’ core markets, and the ability to sell PGT Innovations’ products in Western Window Systems’ core markets profitably or at all. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this Form 8-K. Except as required by law, we undertake no obligation to update these forward-looking statements to reflect subsequent events or circumstances after the date of this Form 8-K.

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 hereunto duly authorized.