40 North Management Trims Exposure to Columbia Property Trust, Inc. (CXP)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

(Amendment No. 3)*

Under the Securities Exchange Act of 1934

Columbia Property Trust, Inc.

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

198287203

(CUSIP Number)

David S. Winter

David J. Millstone

40 North Management LLC

9 West 57th Street, 30th Floor

New York, New York 10019

(212) 821-1600

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

COPIES TO:

Robert W. Downes, Esq.

Sullivan & Cromwell LLP

125 Broad Street

New York, New York 10004-2498

(212) 558-4312

March 14, 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. o

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

*    The remainder
of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

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).

Continued on the following pages

Page 1 of 13 Pages

AMENDMENT NO. 3 TO SCHEDULE
13D

This Amendment No. 3 supplements the information set forth in
the Schedule 13D filed by 40 North Management LLC, a Delaware limited liability company, 40 North GP LLC, a
Delaware limited liability company, 40 North GP II LLC, a Delaware limited liability company, 40 North Investments LP, a
Delaware limited partnership, 40 North Investment Partners LP, a Delaware limited partnership, David S. Winter, an American
citizen, and David J. Millstone, an American citizen, with the United States Securities and Exchange Commission (the
“SEC”) on November 12, 2014 (the “Schedule 13D”), relating to Common Stock, par value
$0.01 per share (the “Shares”), of Columbia Property Trust, Inc., a Maryland corporation (the
“Issuer”).  All capitalized terms contained herein but not otherwise defined shall have the
meanings ascribed to such terms in the Schedule 13D.

The information set forth in response to each separate Item below
shall be deemed to be a response to all Items where such information is relevant.  The Schedule 13D is hereby supplementally
amended as follows:

This statement on Schedule 13D is filed on behalf of 40 North
Management LLC, a Delaware limited liability company (“40 North Management”), 40 North Latitude Master
Fund Ltd., a Cayman Islands exempted company incorporated with limited liability (“40 North Latitude Master”),
40 North Latitude SPV-C LLC, a Delaware limited liability company (“40 North Latitude SPV”), 40 North
Latitude Fund LP, a Delaware limited partnership (“40 North Latitude Feeder”), 40 North GP III LLC,
a Delaware limited liability company (“40 North GP III”), David S. Winter, an American citizen, and
David J. Millstone, an American citizen (collectively, the “Reporting Persons”).  This statement relates
to Shares held by (i) 40 North Latitude SPV, a wholly owned subsidiary of 40 North Latitude Master, the “master”
fund in a “master-feeder” structure in which 40 North Latitude Feeder is a “feeder” fund, and (ii)
40 North Latitude Master.

The principal business of each of 40 North Latitude Feeder,
40 North Latitude Master and 40 North Latitude SPV is the making of investments in securities and other assets.   The
principal business of 40 North GP III is to serve as general partner of 40 North Latitude Feeder.  40 North
Management serves as principal investment manager to 40 North Latitude Feeder and 40 North Latitude Master. As such,
40 North Management has been granted investment discretion over various portfolio investments, including the Shares.  David
S. Winter and David J. Millstone serve as the sole members and principals of each of 40 North Management and 40 North
GP III, as the principals of 40 North Latitude SPV, and as the sole directors of 40 North Latitude Master.  The
principal business address of each of the Reporting Persons is 9 West 57th Street, 30th Floor, New York, New York 10019.  A
joint filing agreement of the Reporting Persons is attached hereto as Exhibit 1.

During the last five years, none of the Reporting Persons has been
convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or has been a party to a civil proceeding
of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment,
decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities
laws or finding any violation with respect to such laws.

The responses to Items 4, 5 and 6 of this Schedule 13D are incorporated
herein by reference.

All of the Shares reported herein were
acquired by 40 North Latitude Feeder on September 1, 2015 via distributions from 40 North Investments LP and 40
North Investment Partners LP (other investment subsidiaries of 40 North Latitude Feeder), and then contributed by 40 North
Latitude Feeder to 40 North Latitude Master. All of such Shares were then contributed by 40 North Latitude Master to 40 North
Latitude SPV.  The total purchase price for the Shares reported herein was $152,486,544. All or part
of the Shares owned by the Reporting Persons may from time to time be pledged with one or more banking institutions or
brokerage firms as collateral for loans made by such bank(s) or brokerage firm(s) to the Reporting Persons. Such indebtedness
may be refinanced with other banks or broker-dealers.

(a) – (b). Each of 40 North Management, 40 North
Latitude SPV, 40 North Latitude Master, 40 North Latitude Feeder, 40 North GP III, Mr. Winter and Mr.
Millstone may be deemed the beneficial owner of all of the 6,158,909 Shares reported herein, which represent approximately 4.99% of the Issuer’s outstanding Shares.  40 North Management may be deemed to have sole power to vote
and sole power to dispose of all of such Shares, whereas the other Reporting Persons may be deemed to have shared power to
vote and shared power to dispose of such Shares as they may be deemed to have beneficial ownership of.

The percentages in the immediately foregoing paragraph are calculated
based on a total of 123,475,470 Shares outstanding as of January 31, 2016 (based on the Issuer’s Annual Report on Form 10-K
filed with the SEC on February 11, 2016).

(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.

(d)           In
addition to the Reporting Persons, the limited partners of (or investors in) 40 North Latitude Feeder or its respective subsidiaries
or affiliated entities have the right to participate in the receipt of dividends from, or proceeds from the sale of, the Shares
held for the account of 40 North Latitude Feeder in accordance with their respective limited partnership interests (or investment
percentages).

(e)           As
of March 14, 2016, each of the Reporting Persons ceased to be the beneficial owner of more than five percent of the Shares.

Exhibit 1 – Agreement between 40 North Management LLC, 40
North Latitude Master Fund Ltd., 40 North Latitude SPV-C LLC, 40 North Latitude Fund LP, 40 North GP III LLC, David S. Winter,
and David J. Millstone to file this Schedule 13D and any amendments thereto jointly on behalf of each of them.

Exhibit 2 – Transactions in the Shares effected in the past
60 days.

SIGNATURES

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