Company Update

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): March 26, 2021     SPX CORPORATION (Exact name of registrant as specified in its charter)       Delaware   1-6948   38-1016240 (State or other jurisdiction of incorporation)   (Commission File Number)   (IRS Employer Identification No.)   6325 Ardrey Kell Road , Suite 400 Charlotte , North Carolina 28277 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code (980) 474-3700 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 obligation of the registrant under any of the following provisions:   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))   ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock, par value $0.01   SPXC   New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR§230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). 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.  ☐       Item 8.01. Other Events The Addendum to Proxy Statement (the “Addendum”) of SPX Corporation (the “Company”) dated March 26, 2021 filed as Exhibit 99.1 hereto corrects, replaces and supersedes the Audit and Non-Audit Fee Table and the footnotes thereto appearing on page 49 of the Company’s 2021 Notice of Annual Meeting of Stockholders and Proxy Statement filed on March 26, 2021, which table was incorporated by reference into Part III, Item 12 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. The Addendum is incorporated by reference.   Item 9.01. Financial Statements and Exhibits. (d)    Exhibits.   Exhibit Number    Description 99.1    Addendum to Proxy Statement dated March 26, 2021 104    Cover Page Interactive Data File (embedded within the Inline XBRL document)   1 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.       SPX CORPORATION     (Registrant) Date: March 26, 2021     By:   /s/ John W. Nurkin       John W. Nurkin       Vice President, General Counsel and Secretary   2