UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

PURSUANT TO SECTION 12(b) OR (g) OF THE

SECURITIES EXCHANGE ACT OF 1934

Securities to be registered pursuant to Section 12(b) of the Act:

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box.  ☑

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box.  ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box.  ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates (if applicable): 333-222233

Securities to be registered pursuant to Section 12(g) of the Act: None

INFORMATION REQUIRED IN REGISTRATION STATEMENT

The securities to be registered hereby are shares of common stock, par value $0.01 per share, of ADT Inc. (the “ Registrant ”). The information required by this Item 1 is incorporated herein by reference to the information set forth under “Description of Capital Stock” in the Registrant’s Registration Statement on Form S-1 (File No. 333-222233) under the Securities Act of 1933, as amended (the “ Securities Act ”), as confidentially submitted with the Securities and Exchange Commission (the “ Commission ”) on September 28, 2017 and as amended on November 6, 2017, November 22, 2017, and December 8, 2017, and as publicly filed with the Commission on December 21, 2017, January 5, 2018, January 8, 2018 and January 17, 2018, (as amended from time to time, the “ S-1 Registration Statement ”). Such information also will appear in the Registrant’s prospectus that forms a part of the S-1 Registration Statement to be filed by the Registrant with the Commission pursuant to Rule 424(b) under the Securities Act, and such prospectus shall be deemed to be incorporated herein by reference.

Item 2. Exhibits.

Pursuant to the Instructions as to Exhibits with respect to Form 8-A, no exhibits are required to be filed as part of this registration statement because no other securities of the Registrant are registered on The New York Stock Exchange and the securities registered hereby are not being registered pursuant to Section 12(g) of the Securities Exchange Act of 1934, as amended.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

Date: January 18, 2018