Toronto, ON, Canada /
Houston, Texas, USA (October 12, 2017) – Canada Pension Plan Investment
Board (“CPPIB”) and Parkway, Inc. (NYSE: PKY) (“Parkway”), a Houston-based real
estate investment trust, announced today the completion of the previously
announced merger of Parkway with an affiliate of CPPIB for US$1.2 billion, or
US$23.05 per share.  The closing follows
the satisfaction of all conditions to closing the merger, including the receipt
of approval of the transaction by Parkway stockholders on September 25, 2017.

Under the terms of the merger agreement, Parkway
stockholders are entitled to receive cash payments totaling US$23.05 per share
for each share of Parkway common stock held from the record date of Parkway’s
cash dividend through the closing date. 
The US$23.05 per share consideration
consists of US$19.05 per share payable pursuant to the merger, plus a US$4.00
per share special cash dividend paid on October 10, 2017.

About Canada Pension
Plan Investment Board

Canada Pension Plan Investment Board (CPPIB) is a
professional investment management organization
that invests the funds not needed by the Canada Pension Plan (CPP) to pay
current benefits on behalf of 20 million contributors and beneficiaries. In
order to build a diversified portfolio of CPP assets, CPPIB invests in public
equities, private equities, real estate, infrastructure and fixed income instruments. Headquartered in
Toronto, with offices in Hong Kong, London, Luxembourg, Mumbai, New York City,
São Paulo and Sydney, CPPIB is governed and managed independently of the Canada
Pension Plan and at arm’s length from governments. At June 30, 2017, the CPP
Fund totalled C$326.5 billion. For more information about CPPIB, please visit www.cppib.com or follow us on LinkedIn
or Twitter.

About Parkway

Parkway, Inc. is an independent,
publicly traded, self-managed real estate investment trust (“REIT”) that owns
and operates high-quality office properties located in attractive submarkets in
Houston, Texas. As of June 30, 2017, our portfolio consists of five Class A
assets comprising 19 buildings and totaling approximately 8.7 million rentable
square feet in the Greenway, Galleria and Westchase submarkets of Houston.

Forward Looking
Statements

Certain statements contained in this press release,
including those that express a belief, expectation or intention, as well as
those that are not statements of historical fact, are forward-looking
statements within the meaning of the federal securities laws and as such are
based upon Parkway’s current beliefs as to the outcome and timing of future
events. There can be no assurance that actual future developments affecting
Parkway will be those anticipated by Parkway. Parkway cautions investors that
any forward-looking statements presented in this press release are based on
management’s beliefs and assumptions made by, and information currently
available to, management. When used, the words “anticipate,”
“assume,” “believe,” “estimate,”
“expect,” “forecast,” “guidance,”
“intend,” “may,” “might,” “plan,”
“potential,” “should,” “will,” “result”
or similar expressions that do not relate solely to historical matters are
intended to identify forward-looking statements. You can also identify
forward-looking statements by discussions of strategy, plans or intentions.
Forward-looking statements involve risks and uncertainties (some of which are
beyond Parkway’s control) and are subject to change based upon various factors,
including but not limited to the following risks and uncertainties: the outcome
of any legal proceedings that may be instituted against Parkway and others
related to the merger agreement; the ability of Parkway to implement its
operating strategy; changes in economic cycles; and competition within the
office properties real estate industry; and other risks and uncertainties
detailed from time to time in Parkway’s Securities and Exchange Commission (the
“SEC”) filings.

Should one or more of these risks or uncertainties occur, or
should underlying assumptions prove incorrect, Parkway’s business, financial
condition, liquidity, cash flows and results could differ materially from those
expressed in any forward-looking statement. While forward-looking statements
reflect Parkway’s good faith beliefs, they are not guarantees of future
performance. Any forward-looking statement speaks only as of the date on which
it is made. New risks and uncertainties arise over time, and it is not possible
for us to predict the occurrence of those matters or the manner in which they
may affect us. Except as required by law, Parkway undertakes no obligation to
publicly update or revise any forward-looking statement to reflect changes in
underlying assumptions or factors, of new information, data or methods, future
events or other changes.

Toronto, ON, Canada / Houston, Texas, USA (October 12, 2017) – Canada Pension Plan Investment Board (“CPPIB”) and Parkway, Inc. (NYSE: PKY) (“Parkway”), a Houston-based real estate investment trust, announced today the completion of the previously announced merger of Parkway with an affiliate of CPPIB for US$1.2 billion, or US$23.05 per share.  The closing follows the satisfaction of all conditions to closing the merger, including the receipt of approval of the transaction by Parkway stockholders on September 25, 2017.

Under the terms of the merger agreement, Parkway stockholders are entitled to receive cash payments totaling US$23.05 per share for each share of Parkway common stock held from the record date of Parkway’s cash dividend through the closing date.  The US$23.05 per share consideration consists of US$19.05 per share payable pursuant to the merger, plus a US$4.00 per share special cash dividend paid on October 10, 2017.

About Canada Pension Plan Investment Board

Canada Pension Plan Investment Board (CPPIB) is a professional investment management organization that invests the funds not needed by the Canada Pension Plan (CPP) to pay current benefits on behalf of 20 million contributors and beneficiaries. In order to build a diversified portfolio of CPP assets, CPPIB invests in public equities, private equities, real estate, infrastructure and fixed income instruments. Headquartered in Toronto, with offices in Hong Kong, London, Luxembourg, Mumbai, New York City, São Paulo and Sydney, CPPIB is governed and managed independently of the Canada Pension Plan and at arm's length from governments. At June 30, 2017, the CPP Fund totalled C$326.5 billion. For more information about CPPIB, please visit www.cppib.com or follow us on LinkedIn or Twitter.

About Parkway

Parkway, Inc. is an independent, publicly traded, self-managed real estate investment trust (“REIT”) that owns and operates high-quality office properties located in attractive submarkets in Houston, Texas. As of June 30, 2017, our portfolio consists of five Class A assets comprising 19 buildings and totaling approximately 8.7 million rentable square feet in the Greenway, Galleria and Westchase submarkets of Houston.

Forward Looking Statements

Certain statements contained in this press release, including those that express a belief, expectation or intention, as well as those that are not statements of historical fact, are forward-looking statements within the meaning of the federal securities laws and as such are based upon Parkway's current beliefs as to the outcome and timing of future events. There can be no assurance that actual future developments affecting Parkway will be those anticipated by Parkway. Parkway cautions investors that any forward-looking statements presented in this press release are based on management's beliefs and assumptions made by, and information currently available to, management. When used, the words "anticipate," "assume," "believe," "estimate," "expect," "forecast," "guidance," "intend," "may," "might," "plan," "potential," "should," "will," "result" or similar expressions that do not relate solely to historical matters are intended to identify forward-looking statements. You can also identify forward-looking statements by discussions of strategy, plans or intentions. Forward-looking statements involve risks and uncertainties (some of which are beyond Parkway's control) and are subject to change based upon various factors, including but not limited to the following risks and uncertainties: the outcome of any legal proceedings that may be instituted against Parkway and others related to the merger agreement; the ability of Parkway to implement its operating strategy; changes in economic cycles; and competition within the office properties real estate industry; and other risks and uncertainties detailed from time to time in Parkway’s Securities and Exchange Commission (the “SEC”) filings.

Should one or more of these risks or uncertainties occur, or should underlying assumptions prove incorrect, Parkway's business, financial condition, liquidity, cash flows and results could differ materially from those expressed in any forward-looking statement. While forward-looking statements reflect Parkway's good faith beliefs, they are not guarantees of future performance. Any forward-looking statement speaks only as of the date on which it is made. New risks and uncertainties arise over time, and it is not possible for us to predict the occurrence of those matters or the manner in which they may affect us. Except as required by law, Parkway undertakes no obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, of new information, data or methods, future events or other changes.

Article Contacts

CPPIB:

Dan Madge
Senior Manager, Media Relations
T: +1 416 868 8629
dmadge@cppib.com

Mei Mavin
Director, Corporate Communications
T: +44 20 3205 3406
mmavin@cppib.com

Parkway:

Noni Holmes-Kidd
Vice President, General Counsel
T:  +1
407 581 3351
nholmes-kidd@pky.com