UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934*

(Amendment No. 5)

Hudson Pacific Properties, Inc.

(Name of Issuer)

Common Stock, par value $.01 per share

(Title of Class of Securities)

444097109

(CUSIP Number)

Frank Cohen

The Blackstone Group LP

345 Park Avenue

New York, New York 10154

Tel: (212) 583-5000

with copies to:

Brian M. Stadler, Esq.

Edgar J. Lewandowski, Esq.

Simpson Thacher & Bartlett LLP

425 Lexington Avenue

New York, New York 10017

Tel: (212) 455-2000

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

January 4, 2017

(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 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).

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP V Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP V.TE.1 Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP V.TE.2 Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP V.F Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BRE Holdings V Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP VI Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP VI.TE.1 Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP VI.TE.2 Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP VI AV Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BREP (AIV) VI Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BRE Holdings VI Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     HPP BFREP VI SMD Holdco A LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners V L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners V.TE.1 L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners V.TE.2 L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners V.F L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Holdings V L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners VI L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners VI.TE.1 L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners VI.TE.2 L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners VI (AV) L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Partners (AIV) VI L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Holdings VI L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Family Real Estate Partnership VI – SMD L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Nantucket Services L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackhawk Services II LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Associates VI L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Real Estate Associates V L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     BREP V Side-by-Side GP L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     BREP VI Side-by-Side GP L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Family GP L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Holdings II L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     BREA V L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Holdings III L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Quebec
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     BREA VI L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Holdings I/II GP Inc.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     CO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Holdings III GP L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Holdings III GP Management L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     The Blackstone Group L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     PN

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Blackstone Group Management L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     OO

SCHEDULE 13D

CUSIP No. 444097109

1	NAMES OF REPORTING PERSONS     Stephen A. Schwarzman
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☐        (b)  ☒
3	SEC USE ONLY
4	SOURCE OF FUNDS (See Instructions)     OO
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  ☐
6	CITIZENSHIP OR PLACE OF ORGANIZATION     United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER     0
		8	SHARED VOTING POWER     0
		9	SOLE DISPOSITIVE POWER     0
		10	SHARED DISPOSITIVE POWER     0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     0
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions)  ☐
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)     0.0%
14	TYPE OF REPORTING PERSON (See Instructions)     IN

This Amendment No. 5 to Schedule 13D relates to shares of Common Stock, par value $0.01 per share (the “Common Stock”), of Hudson Pacific Properties, Inc., a Maryland corporation (the “Issuer”), and amends the initial statement on Schedule 13D filed on April 13, 2015 (the “Original Schedule 13D”), as amended by Amendment No. 1 to the Original Schedule 13D filed on January 5, 2016, as amended by Amendment No. 2 to the Original Schedule 13D filed on May 16, 2016, as amended by Amendment No. 3 to the Original Schedule 13D filed on July 22, 2016, as amended by Amendment No. 4 to the Original Schedule 13D filed on November 30, 2016 (the Original Schedule 13D, as amended, the “Schedule 13D”). Capitalized terms used but not defined in this Amendment No. 5 shall have the same meanings ascribed to them in the Schedule 13D.

Item 2. Identity and Background

Item 2(a)-(b) of the Schedule 13D is hereby amended and restated as follows

(a)-(b) Each of the following is hereinafter individually referred to as a “Reporting Person” and collectively as the “Reporting Persons”. This statement is filed on behalf of:

(i) HPP BREP V Holdco A LLC, a Delaware limited liability company,

(ii) HPP BREP V.TE.1 Holdco A LLC, a Delaware limited liability company,

(iii) HPP BREP V.TE.2 Holdco A LLC, a Delaware limited liability company,

(iv) HPP BREP V.F Holdco A LLC, a Delaware limited liability company,

(v) HPP BRE Holdings V Holdco A LLC, a Delaware limited liability company,

(vi) HPP BREP VI.TE.1 Holdco A LLC, a Delaware limited liability company,

(vii) HPP BREP VI Holdco A LLC, a Delaware limited liability company,

(viii) HPP BREP VI.TE.2 Holdco A LLC, a Delaware limited liability company,

(ix) HPP BREP VI AV Holdco A LLC, a Delaware limited liability company,

(x) HPP BREP (AIV) VI Holdco A LLC, a Delaware limited liability company,

(xi) HPP BRE Holdings VI Holdco A LLC, a Delaware limited liability company,

(xii) HPP BFREP VI SMD Holdco A LLC, a Delaware limited liability company (collectively, together with the entities listed in clauses (i)-(xi), the “Holdco A Subsidiaries” or “Holdco Subsidiaries”),

(xiii) Blackstone Real Estate Partners V L.P., a Delaware limited partnership,

(xiv) Blackstone Real Estate Partners V.TE.1 L.P., a Delaware limited partnership,

(xv) Blackstone Real Estate Partners V.TE.2 L.P., a Delaware limited partnership,

(xvi) Blackstone Real Estate Partners V.F L.P., a Delaware limited partnership,

(xvii) Blackstone Real Estate Holdings V L.P., a Delaware limited partnership,

(xviii) Blackstone Real Estate Partners VI L.P., a Delaware limited partnership,

(xix) Blackstone Real Estate Partners VI.TE.1 L.P., a Delaware limited partnership,

(xx) Blackstone Real Estate Partners VI.TE.2 L.P., a Delaware limited partnership,

(xxi) Blackstone Real Estate Partners VI (AV) L.P., a Delaware limited partnership,

(xxii) Blackstone Real Estate Partners (AIV) VI L.P., a Delaware limited partnership,

(xxiii) Blackstone Real Estate Holdings VI L.P., a Delaware limited partnership,

(xxiv) Blackstone Family Real Estate Partnership VI – SMD L.P., a Delaware limited partnership (collectively, together with the entities listed in clauses (xiii-xxiii), the “Contributing Sponsor Stockholders”),

(xxv) Nantucket Services L.L.C., a Delaware limited liability company,

(xxvi) Blackhawk Services II LLC, a Delaware limited liability company (collectively, together with the entities listed in clauses (xiii)-(xxv), the “Sponsor Stockholders”),

(xxvii) Blackstone Real Estate Associates VI L.P., a Delaware limited partnership,

(xxviii) Blackstone Real Estate Associates V L.P., a Delaware limited partnership,

(xxix) BREP V Side-by-Side GP L.L.C., a Delaware limited liability company,

(xxx) BREP VI Side-by-Side GP L.L.C., a Delaware limited liability company,

(xxxi) Blackstone Family GP L.L.C., a Delaware limited liability company,

(xxxii) Blackstone Holdings II L.P., a Delaware limited partnership,

(xxxiii) BREA V L.L.C., a Delaware limited liability company,

(xxxiv) Blackstone Holdings III L.P., a Québec société en commandite,

(xxxv) BREA VI L.L.C., a Delaware limited liability company,

(xxxvi) Blackstone Holdings I/II GP Inc., a Delaware corporation,

(xxxvii) Blackstone Holdings III GP L.P., a Delaware limited partnership,

(xxxviii) Blackstone Holdings III GP Management L.L.C., a Delaware limited liability company,

(xxxix) The Blackstone Group L.P., a Delaware limited partnership,

(xl) Blackstone Group Management L.L.C., a Delaware limited liability company (each of the foregoing a “Blackstone entity”), and

(xli) Stephen A. Schwarzman, a citizen of the United States of America.

The principal business address of each of the Blackstone entities and Mr. Schwarzman is c/o The Blackstone Group, 345 Park Avenue, New York, New York 10154.

Item 4.    Purpose of Transaction.

Item 4 of the Schedule 13D is hereby amended and supplemented as follows:

On January 4, 2017, the Issuer entered into a purchase agreement with the Holdco A Subsidiaries, Nantucket Services L.L.C. and Blackhawk Services II LLC (collectively, the “Blackstone Sellers”), pursuant to which the Issuer agreed to purchase from the Blackstone Sellers an aggregate of 8,598,480 OP Units, at a purchase price of $35.00 per OP Unit (the “January 2017 Purchase Agreement”). The purchase described above was in connection with the Issuer entering into an underwriting agreement, dated as of January 4, 2017, with the underwriters party thereto (the “January 2017 Underwriters”) and selling stockholders party thereto, including the Blackstone Sellers (the “January 2017 Underwriting Agreement”), pursuant to which the Issuer agreed to sell 8,881,575 shares of its Common Stock and the selling stockholders party thereto agreed to sell 9,792,233 shares of Common Stock in an underwritten offering (the “January 2017 Offering”). The Issuer intended to use the net proceeds received by it in the January 2017 Offering to purchase the 8,598,480 OP Units from the Blackstone Sellers and 283,095 OP Units from other sellers. The transactions described herein closed on January 10, 2017.

References to and descriptions of the January 2017 Underwriting Agreement set forth above in this Item 4 do not purport to be complete and are qualified in their entirety by reference to the full text of the January 2017 Underwriting Agreement, a copy of which has been filed as Exhibit I hereto and incorporated herein by reference.

Item 5. Interest in Securities of the Issuer.

Item 5 of the Schedule 13D is hereby amended by amending and restating the first four paragraphs of Item 5(a) and (b) as follows:

(a) and (b). As of the date hereof, none of the Reporting Persons beneficially owns any shares of Common Stock.

Item 5(c) of the Schedule 13D is hereby amended and restated as follows:

(c) On January 10, 2017, pursuant to the January 2017 Purchase Agreement, the Blackstone Sellers sold an aggregate of 8,598,480 OP Units to the Issuer at a price of $35.00 per OP Unit. The number of OP Units sold by each Blackstone Seller pursuant to the Purchase Agreement is set forth below:

Name of Blackstone Seller	No. of OP Units Sold
HPP BREP V Holdco A LLC		1,907,396
HPP BREP V.TE.1 Holdco A LLC		667,556
HPP BREP V.TE.2 Holdco A LLC		1,715,068
HPP BREP V.F Holdco A LLC		468,959
HPP BRE Holdings V Holdco A LLC		192,137
HPP BREP VI Holdco A LLC		1,331,054
HPP BREP VI.TE.1 Holdco A LLC		387,643
HPP BREP VI.TE.2 Holdco A LLC		812,707
HPP BREP VI AV Holdco A LLC		659,693
HPP BREP (AIV) VI Holdco A LLC		4,107
HPP BRE Holdings VI Holdco A LLC		23,507
HPP BFREP VI SMD Holdco A LLC		80,415
Nantucket Services, LLC		4,299
Blackhawk Services II LLC		343,939

On January 10, 2017, pursuant to the January 2017 Underwriting Agreement, the Blackstone Sellers sold an aggregate of 8,626,311 shares of Common Stock to the January 2017 Underwriters at a price of $35.00 per share. The shares of Common Stock sold by each Blackstone Seller pursuant to the January 2017 Underwriting Agreement is set forth below:

Name of Blackstone Seller	No. of Shares Sold
HPP BREP V Holdco A LLC		1,913,567
HPP BREP V.TE.1 Holdco A LLC		669,716
HPP BREP V.TE.2 Holdco A LLC		1,720,620
HPP BREP V.F Holdco A LLC		470,476
HPP BRE Holdings V Holdco A LLC		192,760
HPP BREP VI Holdco A LLC		1,335,362
HPP BREP VI.TE.1 Holdco A LLC		388,898

HPP BREP VI.TE.2 Holdco A LLC	815,338
HPP BREP VI AV Holdco A LLC	661,829
HPP BREP (AIV) VI Holdco A LLC	4,120
HPP BRE Holdings VI Holdco A LLC	23,584
HPP BFREP VI SMD Holdco A LLC	80,675
Nantucket Services, LLC	4,313
Blackhawk Services II LLC	345,053

Except as set forth in this Amendment No. 5, none of the Reporting Persons has effected any transactions in the Common Stock since the filing of Amendment No. 4 to the Schedule 13D on November 30, 2016.

Item 5(e) of the Schedule 13D is hereby amended and restated as follows:

(e) As of January 10, 2017, the Reporting Persons ceased to be the beneficial owners of more than five percent of the outstanding shares of Common Stock.

Item 7. Material to Be Filed as Exhibits.

Item 7 of the Schedule 13D is hereby amended and supplemented as follows:

Exhibit I Underwriting Agreement, dated January 4, 2017, among the Issuer, the Blackstone Sellers and the other parties thereto (filed as Exhibit 1.1 to the Issuers’ Current Report on Form 8-K filed January 10, 2017, and incorporated herein by reference).

SIGNATURES

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

Dated: January 12, 2017

HPP BREP V HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP V.F HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP V.TE.1 HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP V.TE.2 HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BRE HOLDINGS V HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP VI HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BFREP VI SMD HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director

[Hudson Pacific Properties, Inc. – Schedule 13D/A]

HPP BRE HOLDINGS VI HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP VI.TE.1 HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP VI.TE.2 HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP VI AV HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
HPP BREP (AIV) VI HOLDCO A LLC
By:	/s/ Michael Lascher
Name:	Michael Lascher
Title:	Managing Director
BLACKSTONE REAL ESTATE PARTNERS V L.P.
By:	Blackstone Real Estate Associates V L.P., its general partner
By:	BREA V L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE PARTNERS V.TE.1 L.P.
By:	Blackstone Real Estate Associates V L.P., its general partner
By:	BREA V L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director

[Hudson Pacific Properties, Inc. – Schedule 13D/A]

BLACKSTONE REAL ESTATE PARTNERS V.TE.2 L.P.
By:	Blackstone Real Estate Associates V L.P., its general partner
By:	BREA V L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE PARTNERS V.F L.P.
By:	Blackstone Real Estate Associates V L.P., its general partner
By:	BREA V L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE HOLDINGS V L.P.
By:	BREP V Side-by-Side GP L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE PARTNERS VI L.P.
By:	Blackstone Real Estate Associates VI L.P., its general partner
By:	BREA VI L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE PARTNERS VI.TE.1 L.P.
By:	Blackstone Real Estate Associates VI L.P., its general partner
By:	BREA VI L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE PARTNERS VI.TE.2 L.P.
By:	Blackstone Real Estate Associates VI L.P., its general partner
By:	BREA VI L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director

[Hudson Pacific Properties, Inc. – Schedule 13D/A]

BLACKSTONE REAL ESTATE PARTNERS VI (AV) L.P.
By:	Blackstone Real Estate Associates VI L.P., its general partner
By:	BREA VI L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE PARTNERS (AIV) VI L.P.
By:	Blackstone Real Estate Associates VI L.P., its general partner
By:	BREA VI L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE HOLDINGS VI L.P.
By:	BREP VI Side-by-Side GP L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE FAMILY REAL ESTATE PARTNERSHIP VI – SMD L.P.
By:	Blackstone Family GP L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
NANTUCKET SERVICES L.L.C.
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKHAWK SERVICES II LLC
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE REAL ESTATE ASSOCIATES V L.P.
By:	BREA V L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director

[Hudson Pacific Properties, Inc. – Schedule 13D/A]

BLACKSTONE REAL ESTATE ASSOCIATES VI L.P.
By:	BREA VI L.L.C., its general partner
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BREP V SIDE-BY-SIDE GP L.L.C.
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BREP VI SIDE-BY-SIDE GP L.L.C.
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE FAMILY GP L.L.C.
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BREA V L.L.C.
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BREA VI L.L.C.
By:	/s/ Frank Cohen
Name:	Frank Cohen
Title:	Senior Managing Director
BLACKSTONE HOLDINGS II L.P.
By:	Blackstone Holdings I/II GP Inc., its general partner
By:	/s/ John G. Finley
Name:	John G. Finley
Title:	Chief Legal Officer

[Hudson Pacific Properties, Inc. – Schedule 13D/A]

BLACKSTONE HOLDINGS III L.P.
By:	Blackstone Holdings III GP L.P., its general partner
By:	Blackstone Holdings III GP Management L.L.C., its general partner
By:	/s/ John G. Finley
Name:	John G. Finley
Title:	Chief Legal Officer
BLACKSTONE HOLDINGS I/II GP INC.
By:	/s/ John G. Finley
Name:	John G. Finley
Title:	Chief Legal Officer
BLACKSTONE HOLDINGS III GP L.P.
By:	Blackstone Holdings III GP Management L.L.C., its general partner
By:	/s/ John G. Finley
Name:	John G. Finley
Title:	Chief Legal Officer
BLACKSTONE HOLDINGS III GP MANAGEMENT L.L.C.
By:	/s/ John G. Finley
Name:	John G. Finley
Title:	Chief Legal Officer
THE BLACKSTONE GROUP L.P.
By:	Blackstone Group Management L.L.C., its general partner
By:	/s/ John G. Finley
Name:	John G. Finley
Title:	Chief Legal Officer
BLACKSTONE GROUP MANAGEMENT L.L.C.
By:	/s/ John G. Finley
Name:	John G. Finley
Title:	Chief Legal Officer
/s/ Stephen A. Schwarzman
Stephen A. Schwarzman

[Hudson Pacific Properties, Inc. – Schedule 13D/A]