|
|



UNITED
STATESSECURITIES AND EXCHANGE COMMISSION

Washington,
D.C. 20549



FORM
10-K



(Mark
One)



|☒ | ANNUAL
                                         REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | -----------------------------------------------------------------------------------------------------------------------------



For
the fiscal year ended December 31, 2016
or



|☐ | TRANSITION
                                         REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------------------------------------------------



For
the transition period from _____ to _____
Commission file number of the issuing entity: 333-177354-04

Central
Index Key Number of the issuing entity: 0001559450

UBS-Barclays
Commercial Mortgage Trust 2012-C4

(exact
name of the issuing entity as specified in its charter)



Central
Index Key Number of the depositor: 0001532799

UBS
Commercial Mortgage Securitization Corp.

(exact
name of the depositor as specified in its charter)



Central
Index Key Number of the sponsor: 0001541886

UBS
Real Estate Securities Inc.

(exact
name of the sponsor as specified in its charter)



Central
Index Key Number of the sponsor: 0000312070

Barclays
Bank PLC

(exact
name of the sponsor as specified in its charter)



Central
Index Key Number of the sponsor: 0001542256

Natixis
Real Estate Capital LLC

(exact
name of the sponsor as specified in its charter)



Central
Index Key Number of the sponsor: 0000040554

General
Electric Capital Corporation

(exact
name of the sponsor as specified in its charter)



Central
Index Key Number of the sponsor: 0001175134

RAIT
Partnership, L.P.

(exact
name of the sponsor as specified in its charter)



Central
Index Key Number of the sponsor: 0001567746

Redwood
Commercial Mortgage Corporation

(exact
name of the sponsor as specified in its charter)



|New
                           York(State or other jurisdiction ofincorporation or organization of
        the
        issuing entity) | 46-1661720
        46-1677972
        (I.R.S.
        Employer
        Identification
        Numbers)
|-------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------













c/o
U.S. Bank National Association

as
Certificate Administrator

190
S. LaSalle Street

Chicago,
IL

(Address
of principal executive offices of the issuing entity)



60603

(Zip
Code)



Registrant’s
telephone number, including area code:

(212)
713-2000



Securities
registered pursuant to Section 12(b) of the Act: None.



Securities
registered pursuant to Section 12(g) of the Act: None.



Indicate
by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. ☐ Yes ☒
No



Indicate
by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. ☐ Yes
☒ No



Indicate
by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No



Indicate
by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive
Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during
the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).



Not
applicable.



Indicate
by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (Section 229.405 of this chapter) is not
contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.



Not
applicable.



Indicate
by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller
reporting company. See definitions of “large accelerated filer”, “accelerated filer” and “smaller
reporting company” in Rule 12b-2 of the Exchange Act.



|Large
accelerated filer | ☐                                               | Accelerated filer         | ☐
|----------------------- | ----------------------------------------------- | ------------------------- | -
|                        |                                                 |                           |  
|Non-accelerated
filer   | ☒ (Do not check if a smaller reporting company) | Smaller reporting company | ☐



Indicate
by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). ☐ Yes ☒ No



State
the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price
at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day
of the registrant’s most recently completed second fiscal quarter.



Not
applicable.



Indicate
by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the
Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. ☐ Yes ☐
No



Not
applicable.



Indicate
the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.



Not
applicable.



DOCUMENTS
INCORPORATED BY REFERENCE



List
hereunder the following documents if incorporated by reference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) into
which the document is incorporated: (1) Any annual report to security holders; (2) Any proxy or information statement; and (3)
Any prospectus filed pursuant to Rule





2







424(b) or (c) under the Securities Act of 1933. The listed documents should be clearly described
for identification purposes (e.g., annual report to security holders for fiscal year ended December 24, 1980).



Not
applicable.





|
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3







EXPLANATORY
NOTES



The
Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect
to the 1000 Harbor Boulevard Mortgage Loan, which constituted approximately 0.5% of the asset pool of the issuing entity as of
its cut-off date.  The 1000 Harbor Boulevard Mortgage Loan is an asset of the issuing entity and is part of a loan combination
that includes the 1000 Harbor Boulevard Mortgage Loan and one other pari passu loan, which is not an asset of the issuing
entity. The other pari passu portion of the loan combination was securitized in the UBS-Barclays Commercial Mortgage Trust
2012-C3 transaction, Commission File Number 333-177354-03 (the “UBS-Barclays 2012-C3 Transaction”). This loan
combination, including the 1000 Harbor Boulevard Mortgage Loan, is being serviced and administered pursuant to the pooling and
servicing agreement for the UBS-Barclays 2012-C3 Transaction, which is incorporated by reference as Exhibit 4.2 to this Annual
Report on Form 10-K. Midland Loan Services, a Division of PNC Bank, National Association is the master servicer under the pooling
and servicing agreement for the UBS-Barclays 2012-C3 Transaction. The responsibilities of Midland Loan Services, a Division of
PNC Bank, National Association, as primary servicer of this loan combination with respect to the issuing entity, are subsumed
within its responsibilities as master servicer under the pooling and servicing agreement for the UBS-Barclays 2012-C3 Transaction.



Rialto
Capital Advisors, LLC is the special servicer of the mortgage loans serviced under the Pooling and Servicing Agreement and the
1000 Harbor Boulevard Mortgage Loan. As a result, Rialto Capital Advisors, LLC is a “servicer” as defined in Item
1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10%
or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria,
accountants’ attestation reports and servicer compliance statements delivered by Rialto Capital Advisors, LLC in the capacities
described above are listed in the Exhibit Index.



This
Annual Report on Form 10-K includes assessments of compliance with applicable servicing criteria and accountants’ attestation
reports from CoreLogic Commercial Real Estate Services, Inc. and National Tax Search, LLC.  These entities were engaged by
the master servicer under the Pooling and Servicing Agreement to remit tax payments received from the escrow accounts of borrowers
to local taxing authorities, to report tax amounts due, to verify tax parcel information, and to verify non-escrow tax payments.
These servicing functions are included within the servicing criteria set forth in Items 1122(d)(4)(xi) and 1122(d)(4)(xii) of
Regulation AB.  Therefore, under the principles-based definition of “servicer” set forth in Item 1101(j) of Regulation
AB that looks to the functions that an entity performs, these vendors are “servicers” for the purposes of Item 1122
of Regulation AB.  See Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).



With
respect to the pari passu loan combination that includes the 1000 Harbor Boulevard Mortgage Loan, (i) the report on assessment
of compliance with servicing criteria and attestation report on assessment of compliance with servicing criteria of Midland Loan
Services, a Division of PNC Bank, National Association, as master servicer of the 1000 Harbor Boulevard Mortgage Loan, Deutsche
Bank Trust Company Americas, as trustee, certificate administrator and custodian of the 1000 Harbor Boulevard Mortgage Loan and
Park Bridge Lender Services LLC, as operating advisor of the 1000 Harbor Boulevard Mortgage Loan, listed on the Exhibit Index
are omitted from this Annual Report on Form 10-K as they are not required to be included on this Annual Report on Form 10-K per
Instruction 3 to Item 1122 of Regulation AB because they are parties performing activities that address servicing criteria relating
to 5% or less of the assets of the issuing entity; and (ii) the servicer compliance statements of Midland Loan Services, a Division
of PNC Bank, National Association, as master servicer of the 1000 Harbor Boulevard Mortgage Loan and Deutsche Bank Trust Company
Americas, as certificate administrator of the 1000 Harbor Boulevard Mortgage Loan, listed on the Exhibit Index are omitted from
this Annual Report on Form 10-K as they are not required by Item 1123 of Regulation AB to be included on this Annual Report on
Form 10-K because they are each an unaffiliated party that is not a “servicer” that meets the criteria in Item 1108(a)(2)(i)
through (iii) of Regulation AB.



PART
I



Item
1. Business.



Omitted.



Item
1A. Risk Factors.



Omitted.



Item
1B. Unresolved Staff Comments.



None.



Item
2. Properties.



Omitted.



Item
3. Legal Proceedings.



Omitted.





4







Item
4. Mine Safety Disclosures.



Not
applicable.



PART
II



Item
5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.



Omitted.



Item
6. Selected Financial Data.



Omitted.



Item
7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.



Omitted.



Item
7A. Quantitative and Qualitative Disclosures About Market Risk.



Omitted.



Item
8. Financial Statements and Supplementary Data.



Omitted.



Item
9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.



Omitted.



Item
9A. Controls and Procedures.



Omitted.



Item
9B. Other Information.



None.



PART
III



Item
10. Directors, Executive Officers and Corporate Governance.



Omitted.



Item
11. Executive Compensation.



Omitted.



Item
12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.



Omitted.



Item
13. Certain Relationships and Related Transactions, and Director Independence.



Omitted.



Item
14. Principal Accounting Fees and Services.



Omitted.





5







ADDITIONAL
DISCLOSURE ITEMS FOR REGULATION AB



Item
1112(b) of Regulation AB, Significant Obligor Financial Information.



No
single obligor represents 10% or more of the pool assets held by the issuing entity.



Item
1114(b)(2) of Regulation AB, Significant Enhancement Provider Financial Information.



No
entity or group of affiliated entities provides any external credit enhancement or other support for the certificates within this
transaction as described under Item 1114(a) of Regulation AB.



Item
1115(b) of Regulation AB, Certain Derivatives Instruments (Financial Information).



No
entity or group of affiliated entities provides any derivative instruments or other support for the certificates within this transaction
as described under Item 1115 of Regulation AB.



Item
1117 of Regulation AB, Legal Proceedings.



The
registrant knows of no material pending legal proceeding involving the trust or any party related to the trust, other than routine
litigation incidental to the duties of those respective parties, and the following, with respect to Deutsche Bank Trust Company
Americas, as trustee, certificate administrator and custodian.





Deutsche Bank Trust Company Americas (“DBTCA”)
and Deutsche Bank National Trust Company (“DBNTC”) have been sued by investors in civil litigation concerning
their role as trustees of certain RMBS trusts.



On June 18, 2014, a group of investors, including funds managed
by Blackrock Advisors, LLC, PIMCO-Advisors, L.P., and others, filed a derivative action against DBNTC and DBTCA in New York State
Supreme Court purportedly on behalf of and for the benefit of 544 private-label RMBS trusts asserting claims for alleged violations
of the U.S. Trust Indenture Act of 1939 (TIA), breach of contract, breach of fiduciary duty and negligence based on DBNTC and DBTCA’s
alleged failure to perform their duties as trustees for the trusts. Plaintiffs subsequently dismissed their state court complaint
and filed a derivative and class action complaint in the U.S. District Court for the Southern District of New York on behalf of
and for the benefit of 564 private-label RMBS trusts, which substantially overlapped with the trusts at issue in the state court
action. The complaint alleges that the trusts at issue have suffered total realized collateral losses of U.S. $89.4 billion, but
the complaint does not include a demand for money damages in a sum certain. DBNTC and DBTCA filed a motion to dismiss, and on January
19, 2016, the court partially granted the motion on procedural grounds: as to the 500 trusts that are governed by Pooling and Servicing
Agreements, the court declined to exercise jurisdiction. The court did not rule on substantive defenses asserted in the motion
to dismiss. On March 22, 2016, plaintiffs filed an amended complaint in federal court. In the amended complaint, in connection
with 62 trusts governed by indenture agreements, plaintiffs assert claims for breach of contract, violation of the TIA, breach
of fiduciary duty, and breach of duty to avoid conflicts of interest. The amended complaint alleges that the trusts at issue have
suffered total realized collateral losses of U.S. $9.8 billion, but the complaint does not include a demand for money damages in
a sum certain. On July 15, 2016, DBNTC and DBTCA filed a motion to dismiss the amended complaint. On January 23, 2017, the court
granted in part and denied in part DBNTC and DBTCA’s motion to dismiss. The court granted the motion to dismiss with respect
to plaintiffs’ conflict-of-interest claim, thereby dismissing it, and denied the motion to dismiss with respect to plaintiffs’
breach of contract claim (except as noted below) and claim for violation of the TIA, thereby allowing those claims to proceed.
On January 26, 2017, the parties filed a joint stipulation and proposed order dismissing plaintiffs’ claim for breach of
fiduciary duty. On January 27, 2017, the court entered the parties’ joint stipulation and ordered that plaintiffs’
claim for breach of fiduciary duty be dismissed. On February 3, 2017, following a hearing concerning DBNTC and DBTCA’s motion
to dismiss on February 2, 2017, the court issued a short form order dismissing (i) plaintiffs’ representation and warranty
claims as to 21 trusts whose originators and/or sponsors had entered bankruptcy and the deadline for asserting claims against such
originators and/or sponsors had passed as of 2009 and (ii) plaintiffs’ claims to the extent they were premised upon any alleged
pre-Event of Default duty to terminate servicers. Discovery is ongoing.



On March 25, 2016, the BlackRock plaintiffs filed a state
court action against DBTCA in the Superior Court of California, Orange County with respect to 513 trusts. On May 18, 2016, plaintiffs
filed an amended complaint with respect to 465 trusts, and included DBNTC as an additional defendant. The amended complaint asserts
three causes of action: breach of contract; breach of fiduciary duty; and breach of the duty to avoid conflicts of interest. Plaintiffs
purport to bring the action on behalf of themselves and all other current owners of certificates in the 465 trusts. The amended
complaint alleges that the trusts at issue have suffered total realized collateral losses of U.S. $75.7 billion, but does not include
a demand for money damages in a sum certain. On August 22, 2016, DBNTC and DBTCA filed a demurrer as to Plaintiffs’ breach
of fiduciary duty cause of action and breach of the duty to avoid conflicts of interest cause of action and motion to strike as
to Plaintiffs’ breach of contract cause of action. On October 18, 2016, the court granted DBNTC and DBTCA’s demurrer,
providing Plaintiffs with thirty days’ leave to amend, and denied DBNTC and DBTCA’s motion to strike. Plaintiffs did
not further amend their complaint and, on December 19, 2016, DBNTC and DBTCA filed an answer to the amended complaint. Discovery
is ongoing.



On December 30, 2015, IKB International, S.A. in Liquidation and
IKB Deutsche Industriebank A.G. (collectively, “IKB”), as an investor in 37 RMBS trusts, filed a summons with
notice in the Supreme Court of the State of New York, New York County, against DBNTC and DBTCA as trustees of the trusts. On May
27, 2016, IKB served its complaint asserting claims for breach of contract, breach of fiduciary duty, breach of duty to avoid conflicts
of interest, violation of New York’s Streit Act, violation of the Trust Indenture Act, violation of Regulation AB, and violation
of Section 9 of the Uniform Commercial Code. IKB alleges that DBNTC and DBTCA are liable for over U.S. $268 million in damages.
On October 5, 2016, DBNTC and DBTCA, together with several other trustees defending lawsuits by IKB, filed a joint motion to dismiss.
On January 6, 2017, IKB





6







filed a notice of discontinuance, voluntarily dismissing with prejudice all claims as to three trusts.
As of January 17, 2017, DBNTC and DBTCA’s motion to dismiss has been briefed and is awaiting decision by the court. Certain
limited discovery is permitted to go forward while the motion to dismiss is pending.



It is DBTCA’s
belief that it has no pending legal proceedings (including, based on DBTCA’s present evaluation, the litigation disclosed
in the foregoing paragraphs) that would materially affect its ability to perform its duties as trustee, certificate administrator
and custodian under the pooling and servicing agreement for the UBS-Barclays 2012-C3 transaction.





Item
1119 of Regulation AB, Affiliations and Certain Relationships and Related Transactions.



The
information regarding this Item has been previously provided in a prospectus supplement of the Registrant relating to the issuing
entity filed on December 19, 2012 pursuant to Rule 424(b)(5).



Item
1122 of Regulation AB, Compliance with Applicable Servicing Criteria.



The
reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on
such assessments of compliance with respect to the mortgage loans are attached hereto under Item 15 to this Annual Report on Form
10-K. Attached as Schedule II to the Pooling and Servicing Agreement incorporated by reference as Exhibit 4.1 to this Annual Report
on Form 10-K is a chart identifying the entities participating in a servicing function for the transaction responsible for each
applicable servicing criteria set forth in Item 1122(d).



The
reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on
such assessments of compliance with respect to the 1000 Harbor Boulevard Mortgage Loan, which is being serviced and administered
pursuant to the pooling and servicing agreement for the UBS-Barclays 2012-C3 Transaction, are attached hereto under Item 15 to
this Annual Report on Form 10-K. Attached as Schedule II to the pooling and servicing agreement for the UBS-Barclays 2012-C3 Transaction
incorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K is a chart identifying the entities participating
in a servicing function for the UBS-Barclays 2012-C3 Transaction responsible for each applicable servicing criteria set forth
in Item 1122(d).



Item
1123 of Regulation AB, Servicer Compliance Statement.



The
servicer compliance statements are attached as Exhibits to this Annual Report on Form 10-K.



PART
IV



Item
15. Exhibits, Financial Statement Schedules



(a)
The following is a list of documents filed as part of this Annual Report on Form 10-K:



(1)
Not applicable



(2)
Not applicable



(3)
See below



|4.1 | Pooling
                                         and Servicing Agreement, dated as of December 1, 2012, by and among UBS Commercial Mortgage
                                         Securitization Corp., as Depositor, Wells Fargo Bank, National Association, as Master
                                         Servicer, Rialto Capital Advisors, LLC, as Special Servicer, TriMont Real Estate Advisors,
                                         Inc., as Operating Advisor and U.S. Bank National Association, as Trustee, Certificate
                                         Administrator, Paying Agent and Custodian (filed as Exhibit 4 to the registrant’s
                                         Current Report on Form 8-K filed on December 20, 2012 under Commission File No. 333-177354-04
                                         and incorporated by reference herein).
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|4.2 | Pooling
                                         and Servicing Agreement, dated as of September 1, 2012, by and among UBS Commercial Mortgage
                                         Securitization Corp., as Depositor, Midland Loan Services, a Division of PNC Bank, National
                                         Association, as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer, Park
                                         Bridge Lender Services LLC, as Operating Advisor and Deutsche Bank Trust Company Americas,
                                         as Trustee, Certificate Administrator, Paying Agent and Custodian (filed as Exhibit 4
                                         to the registrant’s Current Report on Form 8-K filed on September 27, 2012 under
                                         Commission File No. 333-177354-03 and incorporated by reference herein).
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|31 | Rule
                                         13a-14(d)/15d-14(d) Certifications.
|-- | ---------------------------------------------------------------------------------



|33 | Reports
                                         on assessment of compliance with servicing criteria for asset-backed securities.
|-- | ---------------------------------------------------------------------------------------------------------------------------------



|33.1 | Wells
                                         Fargo Bank, National Association, as Master Servicer
|---- | ---------------------------------------------------------------------------------------------------



|33.2 | Rialto
                                         Capital Advisors, LLC, as Special Servicer
|---- | ------------------------------------------------------------------------------------------



|33.3 | U.S.
                                         Bank National Association, as Trustee, Certificate Administrator and Custodian
|---- | ----------------------------------------------------------------------------------------------------------------------------





7









|33.4 | TriMont
                                         Real Estate Advisors, Inc., as Operating Advisor
|---- | -------------------------------------------------------------------------------------------------





|33.5 | CoreLogic
                                         Commercial Real Estate Services, Inc., as Servicing Function Participant
|---- | ---------------------------------------------------------------------------------------------------------------------------



|33.6 | National
                                         Tax Search, LLC, as Servicing Function Participant
|---- | ----------------------------------------------------------------------------------------------------



|33.7 | Midland
                                         Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the
                                         1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|33.8 | Rialto
                                         Capital Advisors, LLC, as Special Servicer of the 1000 Harbor Boulevard Mortgage Loan
                                         (see Exhibit 33.2)
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|33.9 | Deutsche
                                         Bank Trust Company Americas, as Trustee, Certificate Administrator and Custodian of the
                                         1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|33.10 | Park
                                         Bridge Lender Services LLC, as Operating Advisor of the 1000 Harbor Boulevard Mortgage
                                         Loan (Omitted. See Explanatory Notes.)
|----- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|34 | Attestation
                                         reports on assessment of compliance with servicing criteria for asset-backed securities.
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------



|34.1 | Wells
                                         Fargo Bank, National Association, as Master Servicer
|---- | ---------------------------------------------------------------------------------------------------



|34.2 | Rialto
                                         Capital Advisors, LLC, as Special Servicer
|---- | ------------------------------------------------------------------------------------------



|34.3 | U.S.
                                         Bank National Association, as Trustee, Certificate Administrator and Custodian
|---- | ----------------------------------------------------------------------------------------------------------------------------



|34.4 | TriMont
                                         Real Estate Advisors, Inc., as Operating Advisor
|---- | -------------------------------------------------------------------------------------------------



|34.5 | CoreLogic
                                         Commercial Real Estate Services, Inc., as Servicing Function Participant
|---- | ---------------------------------------------------------------------------------------------------------------------------



|34.6 | National
                                         Tax Search, LLC, as Servicing Function Participant
|---- | ----------------------------------------------------------------------------------------------------



|34.7 | Midland
                                         Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the
                                         1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|34.8 | Rialto
                                         Capital Advisors, LLC, as Special Servicer of the 1000 Harbor Boulevard Mortgage Loan
                                         (see Exhibit 34.2)
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|34.9 | Deutsche
                                         Bank Trust Company Americas, as Trustee, Certificate Administrator and Custodian of the
                                         1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|34.10 | Park
                                         Bridge Lender Services LLC, as Operating Advisor of the 1000 Harbor Boulevard Mortgage
                                         Loan (Omitted. See Explanatory Notes.)
|----- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|35 | Servicer
                                         compliance statements.
|-- | ------------------------------------------------------------------------



|35.1 | Wells
                                         Fargo Bank, National Association, as Master Servicer
|---- | ---------------------------------------------------------------------------------------------------



|35.2 | Rialto
                                         Capital Advisors, LLC, as Special Servicer
|---- | ------------------------------------------------------------------------------------------



|35.3 | U.S.
                                         Bank National Association, as Certificate Administrator
|---- | -----------------------------------------------------------------------------------------------------



|35.4 | Midland
                                         Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the
                                         1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|35.5 | Rialto
                                         Capital Advisors, LLC, as Special Servicer of the 1000 Harbor Boulevard Mortgage Loan
|---- | -------------------------------------------------------------------------------------------------------------------------------------



|35.6 | Deutsche
                                         Bank Trust Company Americas, as Certificate Administrator of the 1000 Harbor Boulevard
                                         Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|99.1 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between UBS Commercial Mortgage
                                         Securitization Corp. and UBS Real Estate Securities Inc. (filed as Exhibit 99.1 to the
                                         registrant’s Current Report on Form 8-K filed on December 20, 2012 under Commission
                                         File No. 333-177354-04 and incorporated by reference herein)
|---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|99.2 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between UBS Commercial Mortgage
                                         Securitization Corp. and Barclays Bank PLC (filed as Exhibit 99.2 to the registrant’s
                                         Current Report on Form 8-K filed on December 20, 2012 under Commission File No. 333-177354-04
                                         and incorporated by reference herein)
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|99.3 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between UBS Commercial Mortgage
                                         Securitization Corp. and Natixis Real Estate Capital LLC (filed as Exhibit 99.3 to the
                                         registrant’s Current Report on Form 8-K filed on December 20, 2012 under Commission
                                         File No. 333-177354-04 and incorporated by reference herein)
|---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------





8









|99.4 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between UBS Commercial Mortgage
                                         Securitization Corp. and General Electric Capital Corporation (filed as Exhibit 99.4
                                         to the registrant’s Current Report on Form 8-K filed on December 20, 2012 under
                                         Commission File No. 333-177354-04 and incorporated by reference herein)
|---- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|99.5 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between UBS Commercial Mortgage
                                         Securitization Corp. and RAIT Partnership, L.P. (filed as Exhibit 99.5 to the registrant’s
                                         Current Report on Form 8-K filed on December 20, 2012 under Commission File No. 333-177354-04
                                         and incorporated by reference herein)
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|99.6 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between UBS Commercial Mortgage
                                         Securitization Corp. and Redwood Commercial Mortgage Corporation. (filed as Exhibit 99.6
                                         to the registrant’s Current Report on Form 8-K filed on December 20, 2012 under
                                         Commission File No. 333-177354-04 and incorporated by reference herein)
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



(b)     The
exhibits required to be filed by the Registrant pursuant to Item 601 of Regulation S-K are listed above and in the Exhibit Index
that immediately follows the signature page hereof.



(c)     Not
Applicable.



9







SIGNATURES



Pursuant
to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized.



UBS
Commercial Mortgage Securitization Corp.
(Depositor)



|/s/ David Nass                                                | 
|------------------------------------------------------------- | 
|David
Nass, President and Chief Executive Officer             | 
|(senior
officer in charge of securitization of the depositor) | 



Date:
  March 27, 2017





|/s/ Alfred Fernandez                 | 
|------------------------------------ | 
|Alfred Fernandez, Executive Director | 



Date:
  March 27, 2017



10