UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 4)*

VEREIT, INC.

(F/K/A AMERICAN REALTY CAPITAL PROPERTIES, INC.)

(Name of Issuer)

COMMON STOCK, $0.01 PAR VALUE

(Title of Class of Securities)

92339V100

(CUSIP Number)

Keith Meister

Patrick J. Dooley, Esq.

Corvex Management LP

667 Madison Avenue

New York, NY 10065

(212) 474-6700

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

March 17, 2016

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.  ¨

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See
§240.13d-7 for other parties to whom copies are to be sent.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

This Amendment No. 4 to the Schedule 13D (this “Amendment No. 4”) relates to the common stock, $0.01 par value per share (the “Shares”), of VEREIT, Inc. (f/k/a American Realty Capital Properties, Inc.), a Maryland corporation (the “Issuer”), and amends the Schedule 13D filed on December 29, 2014 as amended by Amendment No. 1 thereto filed with the SEC on February 9, 2015, Amendment No. 2 thereto filed with the SEC on March 9, 2015 and Amendment No. 3 thereto filed with the SEC on September 25, 2015 (the “Original Schedule 13D” and, together with this Amendment No. 4, the “Schedule 13D”). Capitalized terms used and not defined in this Amendment No. 4 have the meanings set forth in the Original Schedule 13D.

This Amendment No. 4 amends Item 5 and Item 7 as set forth below. As set forth below, as a result of the transactions described herein, on March 17, 2016 each of the Reporting Persons ceased to be the beneficial owner of more than five percent of the Shares. The filing of this Amendment No. 4 represents the final amendment to the Schedule 13D and constitutes an exit filing for the Reporting Persons.

Item 5. Interest in Securities of the Issuer

Paragraphs (a)-(c) and (e) of ltem 5 of the Schedule 13D are supplementally amended as follows:

The percentages used in this Item and in the rest of the Schedule 13D are calculated based upon an aggregate of 904,812,996 Shares outstanding on February 19, 2016, as reported in the Issuer’s Annual Report on Form 10-K for the fiscal year ended December 31, 2015, filed on February 24, 2016.

(a)-(b) Corvex may be deemed to be the beneficial owner of 44,360,189 Shares, constituting approximately 4.9% of the Issuer’s Shares outstanding. By virtue of his position as control person of the general partner of Corvex, Mr. Meister may be deemed the beneficial owner of such Shares. Corvex and Mr. Meister may be deemed to have sole power to vote and dispose of the Shares reported in this Schedule 13D.

(c) Except as set forth on Exhibit 2 attached hereto, there have been no transactions with respect to the Shares during the sixty days prior to the date hereof by any of the Reporting Persons.

(e) As a result of the transactions described herein, on March 17, 2016 each of the Reporting Persons ceased to be the beneficial owner of more than five percent of the Shares. The filing of this Amendment No. 4 represents the final amendment to the Schedule 13D and constitutes an exit filing for the Reporting Persons.

Item 7. Material to be Filed as Exhibits

Item 7 of the Schedule 13D is supplementally amended as follows:

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

EXHIBIT 2

TRANSACTIONS

The following table sets forth all transactions with respect to Shares effected in the last sixty days by the Reporting Persons on behalf of the Reporting Persons in respect of the Shares. Except as otherwise noted below, all such transactions were purchases or sales of Shares effected in the open market, and the table includes commissions paid in per share prices.