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, 2021
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: 0001660492

GE
Capital US Holdings, Inc.

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

(successor
in interest to certain obligations of General Electric Capital Corporation)



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:

|Title
    of each class | Trading
    Symbol(s) | Name
    of each exchange on which registered
|----------------------- | --------------------- | ---------------------------------------------
|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, a smaller reporting
company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,”
“smaller reporting company,” and “emerging growth 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 | ☐
|                            |   |                                                   |                               |  
|                            |   |                                                   | Emerging
    growth company   | ☐



If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for
complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐



Indicate
by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness
of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered
public accounting firm that prepared or issued its audit report. ☐



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.





2







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 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.












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.



The
master servicer of a pooling and servicing agreement or trust and servicing agreement also functions as the primary servicer of
the related mortgage loans serviced and administered pursuant to such agreement unless a separate primary servicer is identified
herein. If this report does not identify a separate primary servicer, the servicer compliance statement provided by the master
servicer under any such agreement also encompasses its responsibilities as primary servicer of the related mortgage loan or mortgage
loans.



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 Solutions, LLC.  This entity was 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, this
vendor is a “servicer” for the purposes of Item 1122 of Regulation AB.  See Compliance and Disclosure
Interpretations, Section 301.01 (Item 1101(j)).



The
assessment of compliance with applicable servicing criteria, accountants’ attestation report and servicer compliance statement
of the certificate administrator of the 1000 Harbor Boulevard Mortgage Loan is omitted from this Annual Report on Form 10-K as
the certificate administrator pursuant to the related pooling and servicing agreement or trust and servicing agreement does not
perform any activities that address servicing criteria with respect to the issuing entity and because it is not a “servicer”
that meets the criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.



With
respect to the pari passu loan combination that includes the 1000 Harbor Boulevard Mortgage Loan, (i) the reports on assessment
of compliance with servicing criteria and attestation reports on assessment of compliance with servicing criteria of Midland Loan
Services, a Division of PNC Bank, National Association as primary servicer of the 1000 Harbor Boulevard Mortgage Loan, Deutsche
Bank Trust Company Americas as trustee 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 statement of Midland Loan Services, a Division of PNC Bank, National
Association as primary servicer of the 1000 Harbor Boulevard Mortgage Loan, listed on the Exhibit Index is omitted from this Annual
Report on Form 10-K as it is not required by Item 1123 of Regulation AB to be included on this Annual Report on Form 10-K because
it is 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.





4







Item
3. Legal Proceedings.



Omitted.



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.





5







Item
14. Principal Accounting Fees and Services.



Omitted.



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, and U.S. Bank National Association, 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 roles as trustees of certain residential mortgage-backed securities
(“RMBS”) trusts.



On
June 18, 2014, a group of investors, including funds managed by Blackrock Advisors, LLC, PIMCO-Advisors, L.P., and others, filed
an action against DBNTC and DBTCA in New York State Supreme Court alleging that DBNTC and DBTCA failed to perform purported duties,
as trustees for 544 private-label RMBS trusts, to enforce breaches of representations and warranties as to mortgage loans held
by the trusts and to enforce breaches by servicers of their mortgage loan servicing obligations for the trusts. During the course
of the litigation, plaintiffs dismissed the case from New York State Supreme Court and refiled two separate cases, one in the
U.S. District Court for the Southern District of New York (the “BlackRock SDNY Case”) and the other in the
Superior Court of California, Orange County (the “BlackRock California Case”). Pursuant to a settlement among
the parties, the BlackRock SDNY Case was dismissed on December 6, 2018, and the BlackRock California Case was dismissed on January
11, 2019.



On
September 27, 2017, DBTCA was added as a defendant to a case brought by certain special purpose entities including Phoenix Light
SF Limited in the U.S. District Court for the Southern District of New York, in which the plaintiffs previously alleged incorrectly
that DBNTC served as trustee for all forty-three of the trusts at issue. On September 27, 2017, plaintiffs filed a third amended
complaint that names DBTCA as a defendant in addition to DBNTC. DBTCA serves as trustee for one of the forty-three trusts at issue.
DBNTC serves as trustee for the other forty-two trusts at issue. Plaintiffs’ third amended complaint brings claims for violation
of the U.S. Trust Indenture Act of 1939 (“TIA”); breach of contract; breach of fiduciary duty; negligence and
gross negligence; violation of New York’s Streit Act; and breach of the covenant of good faith. However, in the third amended
complaint, plaintiffs acknowledge that, before DBTCA was added to the case, the court dismissed plaintiffs’ TIA Act claims,
negligence and gross negligence claims, Streit Act claims, claims for breach of the covenant of good faith, and certain theories
of plaintiffs’ breach of contract claims, and plaintiffs only include these claims to preserve any rights on appeal. Plaintiffs
allege damages of “hundreds of millions of dollars.” On November 13, 2017, DBNTC and DBTCA filed an answer to the
third amended complaint. On December 7, 2018, DBNTC and DBTCA filed a motion for summary judgment. Also on December 7, 2018, plaintiffs,
jointly with Commerzbank AG (see description of Commerzbank case below), filed a motion for partial summary judgment. On October
27, 2021, DBNTC and DBTCA filed a supplemental motion for summary judgment relating to plaintiffs’ standing. On February
8, 2022, the court issued an order in which it granted DBNTC and DBTCA’s supplemental motion for summary judgment, granted
in part DBNTC and DBTCA’s initial motion for summary judgment, and denied plaintiffs’ motion for partial summary judgment.
As a result of that order, all of plaintiffs’ claims were dismissed with prejudice.



On
November 30, 2017, DBTCA was added as a defendant to a case brought by Commerzbank AG (“Commerzbank”) in the
U.S. District Court for the Southern District of New York, in which Commerzbank previously alleged incorrectly that DBNTC served
as trustee for all fifty of the trusts at issue. On November 30, 2017, Commerzbank filed a second amended complaint that names
DBTCA as a defendant in addition to DBNTC. DBTCA serves as trustee for one of the fifty trusts at issue. DBNTC serves as trustee
for the other forty-nine trusts at issue. Commerzbank’s second amended complaint brings claims for violation of the TIA;
breach of contract; breach of fiduciary duty; negligence; violation of the Streit Act; and breach of the covenant of good faith.
However, in the second amended complaint, Commerzbank acknowledges that, before DBTCA was added to the case, the court dismissed
Commerzbank’s TIA claims for the trusts governed by pooling and servicing agreements, as well as its Streit Act claims and
claims for breach of the covenant of good faith, and Commerzbank only includes these claims to preserve any rights on appeal.
The second amended complaint alleges that DBNTC and DBTCA caused Commerzbank to suffer “hundreds of millions of dollars
in losses,” but the complaint does not include a demand for money damages in a sum certain. On January 29, 2018, DBNTC and
DBTCA filed an answer to the second amended complaint. On December 7, 2018, DBNTC and DBTCA filed a motion for summary judgment.
Also on December 7, 2018, Commerzbank, jointly with the Phoenix Light plaintiffs, filed a motion for partial summary judgment.
On February 8, 2022, the court issued an order in which it granted in part DBNTC and DBTCA’s motion for summary judgment
and denied plaintiffs’ motion for partial summary judgment. As a result of that order, many of plaintiffs’ claims
and theories were dismissed with prejudice. Discovery is ongoing.





6







On
December 30, 2015, IKB International, S.A. in Liquidation and IKB Deutsche Industriebank A.G. (collectively, “IKB”),
as an investor in thirty-seven 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 the Streit Act, violation of
the TIA, 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 and June 20, 2017, IKB voluntarily dismissed with prejudice
all claims as to seven trusts. On January 27, 2021, 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 IKB’s claims for violations of the Streit Act, Regulation
AB, and Section 9 of the Uniform Commercial Code, as well as certain aspects of IKB’s claims for breach of contract, breach
of fiduciary duty, and violation of the TIA. The court denied the remainder of the motion to dismiss. IKB’s remaining claims
for breach of contract, breach of fiduciary duty, breach of duty to avoid conflicts of interest, and violation of the TIA will
proceed. On May 10, 2021, DBNTC and DBTCA filed a notice of appeal with the New York Supreme Court Appellate Division, First Department,
regarding certain aspects of the court’s order on the motion to dismiss. That appeal has been fully briefed. On May 20,
2021, IKB filed a notice of cross appeal with respect to other aspects of that order. That appeal is being briefed. On June 2,
2021, IKB filed a motion for re-argument regarding certain aspects of the court’s order on the motion to dismiss, which
the court denied on August 3, 2021. On May 13, 2021, DBNTC and DBTCA filed an answer to the complaint. On October 28, 2021, the
parties filed a stipulation, voluntarily dismissing with prejudice all claims as to seven additional trusts. On December 29, 2021,
the parties filed a stipulation, voluntarily dismissing with prejudice all claims as to one additional trust. Discovery is ongoing.



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 under the related servicing
agreement for this transaction.



U.S.
Bank National Association (“U.S. Bank”) and other large financial institutions have been sued in their capacity
as trustee or successor trustee for certain residential mortgage backed securities (“RMBS”) trusts. The complaints,
primarily filed by investors or investor groups against U.S. Bank and similar institutions, allege the trustees caused losses
to investors as a result of alleged failures by the sponsors, mortgage loan sellers and servicers to comply with the governing
agreements for these RMBS trusts. Plaintiffs generally assert causes of action based upon the trustees’ purported failures
to enforce repurchase obligations of mortgage loan sellers for alleged breaches of representations and warranties, notify securityholders
of purported events of default allegedly caused by breaches of servicing standards by mortgage loan servicers and abide by a heightened
standard of care following alleged events of default.



U.S.
Bank denies liability and believes that it has performed its obligations under the RMBS trusts in good faith, that its actions
were not the cause of losses to investors, that it has meritorious defenses, and it has contested and intends to continue contesting
the plaintiffs’ claims vigorously. However, U.S. Bank cannot assure you as to the outcome of any of the litigation, or the
possible impact of these litigations on the trustee or the RMBS trusts.



On
March 9, 2018, a law firm purporting to represent fifteen Delaware statutory trusts (the “DSTs”) that issued
securities backed by student loans (the “Student Loans”) filed a lawsuit in the Delaware Court of Chancery
against U.S. Bank National Association (“U.S. Bank”) in its capacities as indenture trustee and successor special
servicer, and three other institutions in their respective transaction capacities, with respect to the DSTs and the Student Loans.
This lawsuit is captioned National Collegiate Student Loan Master Trust I v. U.S. Bank National Ass’n, C.A. No. 2018-0167-JRS
(Del. Ch.) (the “NCMSLT Action”). The complaint, as amended on June 15, 2018, alleged that the DSTs have been
harmed as a result of purported misconduct or omissions by the defendants concerning administration of the trusts and special
servicing of the Student Loans. Since the filing of the NCMSLT Action, certain Student Loan borrowers have made assertions against
U.S. Bank concerning special servicing that appear to be based on certain allegations made on behalf of the DSTs in the NCMSLT
Action.



U.S.
Bank has filed a motion seeking dismissal of the operative complaint in its entirety with prejudice pursuant to Chancery Court
Rules 12(b)(1) and 12(b)(6) or, in the alternative, a stay of the case while other prior filed disputes involving the DSTs and
the Student Loans are litigated. On November 7, 2018, the Court ruled that the case should be stayed in its entirety pending resolution
of the first-filed cases. On January 21, 2020, the Court entered an order consolidating for pretrial purposes the NCMSLT Action
and three other lawsuits pending in the Delaware Court of Chancery concerning the DSTs and the Student Loans, which remains pending.



U.S.
Bank denies liability in the NCMSLT Action and believes it has performed its obligations as indenture trustee and special servicer
in good faith and in compliance in all material respects with the terms of the agreements governing the DSTs and that it has meritorious
defenses. It has contested and intends to continue contesting the plaintiffs’ claims vigorously.



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).





7







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
|---- | -----------------------------------------------------------------------------------



|33.4 | Trimont Real Estate Advisors, LLC (f/k/a TriMont Real Estate Advisors, Inc.), as Operating Advisor
|---- | --------------------------------------------------------------------------------------------------



|33.5 | CoreLogic Solutions, LLC, as Servicing Function Participant
|---- | -----------------------------------------------------------



|33.6 | Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the 1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------



|33.7 | Rialto Capital Advisors, LLC, as Special Servicer of the 1000 Harbor Boulevard Mortgage Loan (See Exhibit 33.2)
|---- | ---------------------------------------------------------------------------------------------------------------



|33.8 | Deutsche Bank Trust Company Americas, as Trustee and Custodian of the 1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | -------------------------------------------------------------------------------------------------------------------------------------------



|33.9 | 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
|---- | -------------------------------------------------





8







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



|34.4 | Trimont Real Estate Advisors, LLC (f/k/a TriMont Real Estate Advisors, Inc.), as Operating Advisor
|---- | --------------------------------------------------------------------------------------------------



|34.5 | CoreLogic Solutions, LLC, as Servicing Function Participant
|---- | -----------------------------------------------------------



|34.6 | Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the 1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------



|34.7 | Rialto Capital Advisors, LLC, as Special Servicer of the 1000 Harbor Boulevard Mortgage Loan (see Exhibit 34.2)
|---- | ---------------------------------------------------------------------------------------------------------------



|34.8 | Deutsche Bank Trust Company Americas, as Trustee and Custodian of the 1000 Harbor Boulevard Mortgage Loan (Omitted. See Explanatory Notes.)
|---- | -------------------------------------------------------------------------------------------------------------------------------------------



|34.9 | 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 (see Exhibit 35.2)
|---- | ---------------------------------------------------------------------------------------------------------------



| | 99.1 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between UBS Real Estate Securities
                                         Inc. and UBS Commercial Mortgage Securitization Corp. (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 Barclays Bank PLC and
                                         UBS Commercial Mortgage Securitization Corp. (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 Natixis Real Estate Capital
                                         LLC and UBS Commercial Mortgage Securitization Corp. (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)
| | ---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | 99.4 | Mortgage
                                         Loan Purchase Agreement, dated as of December 20, 2012, between General Electric Capital
                                         Corporation and UBS Commercial Mortgage Securitization Corp. (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 RAIT Partnership, L.P.
                                         and UBS Commercial Mortgage Securitization Corp. (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 Redwood Commercial Mortgage
                                         Corporation and UBS Commercial Mortgage Securitization Corp. (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.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(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/
Nicholas Galeone








Nicholas
Galeone, President

(senior
officer in charge of securitization of the depositor)



Date:
March 21, 2022



/s/
Andrew Lisa






Andrew
Lisa, Associate Director



Date:
March 21, 2022



10