Columbia Property Trust, Inc. (CXP): 40 North Management Sells Over A Million Shares

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Page 11 of 13 SEC Filing
CUSIP No. 198287203 Page 11 of 13 Pages

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).

Item 7. Material to be Filed as Exhibits.

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.

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