Simon Property Group 10-Q/A 2015-03-31

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

FORM 10-Q/A

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2015

**SIMON PROPERTY GROUP, INC. **(Exact name of registrant as specified in its charter)

**Delaware **(State of incorporation or organization)**001-14469 **(Commission File No.)**04-6268599 **(I.R.S. Employer Identification No.)
**225 West Washington Street Indianapolis, Indiana 46204 **(Address of principal executive offices)
** (317) 636-1600 **(Registrant's telephone number, including area code)

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 ý No o

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 (§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). Yes ý No o

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 the definitions of "large accelerated filer," "accelerated filer," and "smaller reporting company" in Rule 12b-2 of the Exchange Act (check one):

Large accelerated filer ýAccelerated filer oNon-accelerated filer o (Do not check if a smaller reporting company)Smaller reporting company o

Indicate by check mark whether Registrant is a shell company (as defined by Rule 12b-2 of the Exchange Act). Yes o No ý

As of March 31, 2015, Simon Property Group, Inc. had 311,260,775 shares of common stock, par value $0.0001 per share and 8,000 shares of Class B common stock, par value $0.0001 per share outstanding.

**EXPLANATORY NOTE **

We are filing this Amendment No. 1 on Form 10-Q/A (this "Form 10-Q/A") to amend and restate in their entirety the following items of our Quarterly Report on Form 10-Q for the quarter ended March 31, 2015 as originally filed with the Securities and Exchange Commission on May 7, 2015 (the "Original Form 10-Q"): (i) Item 1 of Part I "Financial Information," (ii) Item 2 of Part I, "Management's Discussion and Analysis of Financial Condition and Results of Operations," (iii) Item 4 of Part I, "Controls and Procedures," and (iv) Item 6 of Part II, "Exhibits", and we have also updated the signature page, the certifications of our Chief Executive Officer and Chief Financial Officer in Exhibits 31.1, 31.2, 32.1 and 32.2, and our financial statements formatted in Extensible Business Reporting Language (XBRL) in Exhibits 101. We are amending and restating these items to reflect the recognition of the non-cash gain described in the following paragraph. No other sections were affected, but for the convenience of the reader, this Form 10-Q/A restates in its entirety, as amended, our Original Form 10-Q. This Form 10-Q/A is presented as of the filing date of the Original Form 10-Q and does not reflect events occurring after that date, or modify or update disclosures in any way other than as required to reflect the amendment and restatement described below.

During the preparation of our financial statements for the year ended December 31, 2015, our year end reporting procedures and controls identified that a non-cash gain of $206.9 million, solely related to our equity method investment in Klépierre SA, or Klépierre, and Klépierre's acquisition of Corio N.V., or Corio, in January, 2015 should have been recorded in the first quarter of 2015. Klépierre issued 114 million additional shares of its common stock in connection with its acquisition of Corio which effectively reduced our percentage ownership interest in Klépierre common shares from 28.9% to 18.3% during the quarterly period ending March 2015. As a result of Klépierre's issuance of additional shares and the reduction in our ownership interest, we are required to recognize a gain (or loss) based on the difference in Klépierre's issue price per share as compared to our carrying value per Klépierre share. This non-cash gain is recognized in our net income in the period the change of our ownership interest occurred. We sold no shares of Klépierre in 2015 in connection with Klépierre's Corio acquisition or otherwise.

The unaudited consolidated balance sheet and unaudited consolidated statement of operations and comprehensive income for the quarter ended March 31, 2015 included in this Form 10-Q/A have been amended and restated to include the effects of the $206.9 million non-cash gain. This adjustment does not affect previously reported cash flows generated from operating activities or our non-GAAP measures (Funds from Operations, NOI and comparable property NOI) disclosed in "Management's Discussion and Analysis of Financial Condition and Results of Operations" ("MD&A") and does not affect the Ratio of Earnings to Fixed Charges for the applicable periods. We have made necessary conforming changes in "MD&A" resulting from this adjustment.

**Simon Property Group, Inc. and Subsidiaries Form 10-Q/A **

**INDEX **

Page
Part I — Financial Information
Item 1.Consolidated Financial Statements (Unaudited)
Consolidated Balance Sheets as of March 31, 2015 and December 31, 2014 3
Consolidated Statements of Operations and Comprehensive Income for the three months ended March 31, 2015 and 2014 4
Consolidated Statements of Cash Flows for the three months ended March 31, 2015 and 2014 5
Condensed Notes to Consolidated Financial Statements 6
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations 24
Item 3. Qualitative and Quantitative Disclosures About Market Risk 36
Item 4. Controls and Procedures 36
Part II — Other Information
Item 1. Legal Proceedings 37
Item 1A. Risk Factors 37
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 37
Item 3.[](#ec422

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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

**

The following discussion should be read in conjunction with the consolidated financial statements and notes thereto included in this report.

Overview

Simon Property Group, Inc., or Simon, is a Delaware corporation that operates as a self-administered and self-managed real estate investment trust, or REIT, under the Internal Revenue Code of 1986, as amended. REITs will generally not be liable for federal corporate income taxes as long as they continue to distribute not less than 100% of their taxable income. Simon Property Group, L.P., or the Operating Partnership, is our majority-owned partnership subsidiary that owns all of our real estate properties and other assets. In this discussion, the terms "we", "us" and "our" refer to Simon, the Operating Partnership, and its subsidiaries.

We own, develop and manage retail real estate properties, which consist primarily of malls, Premium Outlets®, and The Mills®. As of March 31, 2015, we owned or held an interest in 209 income-producing properties in the United States, which consisted of 110 malls, 68 Premium Outlets, 14 Mills, three community centers, and 14 other retail properties in 37 states and Puerto Rico. We have four Premium Outlets under development and have redevelopment and expansion projects, including the addition of anchors and big box tenants, underway at more than 20 properties in the U.S. and Asia. Internationally, as of March 31, 2015, we had ownership interests in nine Premium Outlets in Japan, three Premium Outlets in South Korea, two Premium Outlets in Canada, one Premium Outlet in Mexico, and one Premium Outlet in Malaysia. As of March 31, 2015, we had noncontrolling ownership interests in five outlet properties in Europe through our joint venture with McArthurGlen. Of the five properties, two are located in Italy and one each is located in Austria, the Netherlands, and the United Kingdom. Additionally, as of March 31, 2015, we owned an 18.3% equity stake in Klépierre SA, or Klépierre, a publicly traded, Paris-based real estate company, which owns, or has an interest in, shopping centers located in 16 countries in Europe.

We generate the majority of our revenues from leases with retail tenants including:

base minimum rents,

overage and percentage rents based on tenants' sales volume, and

recoverable expenditures such as property operating, real estate taxes, repair and maintenance, and advertising and promotional expenditures.

Revenues of our management company, after intercompany eliminations, consist primarily of management fees that are typically based upon the revenues of the property being managed.

We invest in real estate properties to maximize total financial return which includes both operating cash flows and capital appreciation. We seek growth in earnings, funds from operations, or FFO, and cash flows by enhancing the profitability and operation of our properties and investments. We seek to accomplish this growth through the following:

attracting and retaining high quality tenants and utilizing economies of scale to reduce operating expenses,

expanding and re-tenanting existing highly productive locations at competitive rental rates,

selectively acquiring or increasing our interests in high quality real estate assets or portfolios of assets,

generating consumer traffic in our retail properties through marketing initiatives and strategic corporate alliances, and

selling selective non-core assets.

We also grow by generating supplemental revenues from the following activities:

establishing our malls as leading market resource providers for retailers and other businesses and consumer-focused corporate alliances, including payment systems (such as handling fees relating to the sales of bank-issued prepaid cards), national marketing alliances, static and digital media initiatives, business development, sponsorship, and events,

offering property operating services to our tenants and others, including waste handling and facility services, and the provision of energy services,

selling or leasing land adjacent to our properties, commonly referred to as "outlots" or "outparcels," and

generating interest income on cash deposits and investments in loans, including those made to related entities.

We focus on high quality real estate across the retail real estate spectrum. We expand or redevelop properties to enhance profitability and market share of existing assets when we believe the investment of our capital meets our risk-reward criteria. We selectively develop new properties in markets we believe are not adequately served by existing retail outlets.

We routinely review and evaluate acquisition opportunities based on their ability to enhance our portfolio. Our international strategy includes partnering with established real estate companies and financing international investments with local currency to minimize foreign exchange risk.

To support our growth, we employ a three-fold capital strategy:

provide the capital necessary to fund growth,

maintain sufficient flexibility to access capital in many forms, both public and private, and

manage our overall financial structure in a fashion that preserves our investment grade credit ratings.

We consider FFO, net operating income, or NOI, and comparable property NOI (NOI for properties owned and operating in both periods under comparison) to be key measures of operating performance that are not specifically defined by accounting principles generally accepted in the United States, or GAAP. We use these measures internally to evaluate the operating performance of our portfolio and provide a basis for comparison with other real estate companies. Reconciliations of these measures to the most comparable GAAP measure are included below in this discussion.

Results Overview

Diluted earnings per common share increased $0.63 during the first three months of 2015 to $1.73 from $1.10 for the same period last year. The increase in diluted earnings per share was primarily attributable to:

improved operating performance and core business fundamentals in 2015 and the impact of our acquisition and expansion activity, and

decreased interest expense in 2015 as further discussed below, and

a non-cash gain on Klépierre's acquisition of Corio N.V., or Corio, of $206.9 million, or $0.57 per diluted share,

partially offset by the loss of $41.5 million, or $0.11 per diluted share, from the spin-off of Washington Prime Group Inc., or Washington Prime, and

a 2014 non-cash gain of $2.9 million, or $0.01 per diluted share, due to the acquisition of a controlling interest, and the sale or disposal of assets and interests in unconsolidated entities.

Core business fundamentals during the first three months of 2015 improved compared to the first three months of 2014, primarily driven by higher tenant sales and strong leasing activity. Our share of portfolio NOI grew by 2.9% for the three month period in 2015 over the prior year period. Comparable property NOI also grew 3.5% for our portfolio of U.S. Malls, Premium Outlets, and The Mills. Total sales per square foot, or psf, increased 1.6% from $612 psf at March 31, 2014 to $621 psf at March 31, 2015, for our U.S. Malls and Premium Outlets. Average base minimum rent for U.S. Malls and Premium Outlets increased 4.5% to $47.59 psf as of March 31, 2015, from $45.53 psf as of March 31, 2014. Releasing spreads remained positive in our U.S. Malls and Premium Outlets as we were able to lease available square feet at higher rents than the expiring rental rates on the same space, resulting in a releasing spread (based on total tenant payments — base minimum rent plus common area maintenance) of $11.19 psf ($70.54 openings compared to $59.35 closings) as of March 31, 2015, representing an 18.9% increase over expiring payments. Ending occupancy for our U.S. Malls and Premium Outlets was 95.8% as of March 31, 2015, as compared to 96.4% as of March 31, 2014, a decrease of 60 basis points as a result of recently announced tenant bankruptcy activity.

Our effective overall borrowing rate at March 31, 2015 on our consolidated indebtedness decreased 35 basis points to 4.31% as compared to 4.66% at March 31, 2014. This reduction was primarily due to a decrease in the effective overall borrowing rate on fixed rate debt of 19 basis points (4.71% at March 31, 2015 as compared to 4.90% at March 31, 2014) combined with a decrease in the effective overall borrowing rate on variable rate debt of 19 basis points (1.06% at March 31, 2015 as compared to 1.25% at March 31, 2014). At March 31, 2015, the weighted average years to maturity of our consolidated indebtedness was 5.9 years as compared to 6.2 years at December 31, 2014. Our financing activities for the three months ended March 31, 2015, included:

Acquiring two properties — Jersey Gardens in Elizabeth, New Jersey (renamed "The Mills at Jersey Gardens") and University Park Village in Fort Worth, Texas, subject to existing fixed-rate mortgage loans of $350.0 million and $55.0 million, respectively, which mature on November 1, 2020 and May 1, 2028 and bear interest at 3.83% and 3.85%, respectively.

Borrowing $100.0 million, net on our $4.0 billion unsecured revolving credit facility, or Credit Facility.

Increasing our Euro denominated borrowings to $753.8 million (U.S. dollar equivalent) on the Euro tranche of the Credit Facility.

Increasing our borrowings under our global unsecured commercial paper note program, or the Commercial Paper program, to $471.3 million, of which $186.3 million was related to U.S. dollar equivalent of Euro-denominated notes.

United States Portfolio Data

The portfolio data discussed in this overview includes the following key operating statistics: ending occupancy, average base minimum rent per square foot, and total sales per square foot for our domestic assets. We include acquired properties in this data beginning in the year of acquisition and remove disposed properties in the year of disposition. The Washington Prime properties have been removed from the portfolio data for all periods presented. For comparative purposes, we separate the information related to The Mills from our other U.S. operations. We also do not include any properties located outside of the United States.

The following table sets forth these key operating statistics for:

properties that are consolidated in our consolidated financial statements,

properties we account for under the equity method of accounting as joint ventures, and

the foregoing two categories of properties on a total portfolio basis.

March 31, 2015March 31, 2014%/Basis Points Change (1)
U.S. Malls and Premium Outlets:
Ending Occupancy
Consolidated96.1%96.8%–70 bps
Unconsolidated94.9%95.3%–40 bps
Total Portfolio95.8%96.4%–60 bps
Average Base Minimum Rent per Square Foot
Consolidated$45.87$43.844.6%
Unconsolidated$52.64$50.514.2%
Total Portfolio$47.59$45.534.5%
Total Sales per Square Foot
Consolidated$607$5971.8%
Unconsolidated$670$6660.6%
Total Portfolio$621$6121.6%
The Mills®:
Ending Occupancy98.0%97.7%+30 bps
Average Base Minimum Rent per Square Foot$26.18$24.516.8%
Total Sales per Square Foot$570$5307.5%

(1)

Percentages may not recalculate due to rounding. Percentage and basis point changes are representative of the change from the comparable prior period.

Ending Occupancy Levels and Average Base Minimum Rent per Square Foot. Ending occupancy is the percentage of gross leasable area, or GLA, which is leased as of the last day of the reporting period. We include all company owned space except for mall anchors, mall majors, mall freestanding and mall outlots in the calculation. Base minimum rent per square foot is the average base minimum rent charge in effect for the reporting period for all tenants that would qualify to be included in ending occupancy.

Total Sales per Square Foot. Total sales include total reported retail tenant sales on a trailing 12-month basis at owned GLA (for mall stores with less than 10,000 square feet) in the malls and The Mills and all reporting tenants in the Premium Outlets. Retail sales at owned GLA affect revenue and profitability levels because sales determine the amount of minimum rent that can be charged, the percentage rent realized, and the recoverable expenses (common area maintenance, real estate taxes, etc.) that tenants can afford to pay.

Current Leasing Activities

During the three months ended March 31, 2015, we signed 192 new leases and 308 renewal leases (excluding mall anchors and majors, new development, redevelopment, expansion, downsizing and relocation) with a fixed minimum rent across our U.S. Malls and Premium Outlets portfolio, comprising approximately 1.6 million square feet of which 1.1 million square feet related to consolidated properties. During the comparable period in 2014, we signed 201 new leases and 375

renewal leases with a fixed minimum rent, comprising approximately 1.8 million square feet of which 1.3 million square feet related to consolidated properties. The average annual initial base minimum rent for new leases was $57.66 per square foot in 2015 and $60.56 per square foot in 2014 with an average tenant allowance on new leases of $50.97 per square foot and $41.95 per square foot, respectively.

International Property Data

The following are selected key operating statistics for our Premium Outlets in Japan. The information used to prepare these statistics has been supplied by the managing venture partner.

March 31, 2015March, 31 2014%/Basis Points Change
Ending Occupancy99.2%99.3%–10 bps
Total Sales per Square Foot¥ 96,311¥ 92,1984.46%
Average Base Minimum Rent per Square Foot¥ 4,938¥ 4,8831.13%

Results of Operations

In addition to the activity discussed above in the "Results Overview" section, the following acquisitions, openings, and dispositions of consolidated properties affected our consolidated results from continuing operations in the comparative periods:

On January 15, 2015, we acquired a 100% interest in Jersey Gardens (renamed The Mills at Jersey Gardens) in Elizabeth, New Jersey and University Park Village in Fort Worth, Texas, properties previously owned by Glimcher Realty Trust.

On January 30, 2014, we acquired the remaining 50% interest in the previously unconsolidated Arizona Mills from our joint venture partner.

On January 10, 2014, we acquired one of our partner's interests in a portfolio of ten properties, seven of which we had previously consolidated.

During 2014, we disposed of three retail properties.

In addition to the activities discussed above and in "Results Overview," the following acquisitions, dispositions and openings of joint venture properties affected our income from unconsolidated entities in the comparative periods:

On October 30, 2014, we and our partner, Calloway Real Estate Investment Trust, opened Premium Outlets Montreal in Canada, a 365,000 square foot outlet center serving the Greater Montreal area. We have a 50% noncontrolling interest in this new center.

On August 14, 2014, we and our partner opened Twin Cities Premium Outlets, a 409,000 square foot outlet center. We have a 35% noncontrolling interest in this new center.

On July 31, 2014, we and our partner, Tanger Factory Outlet Centers, opened Charlotte Premium Outlets, a 399,000 square foot outlet center. We have a 50% noncontrolling interest in this new center.

On April 16, 2014, Klépierre disposed of a portfolio of 126 properties located in France, Spain, and Italy.

On April 10, 2014, through our joint venture with McArthurGlen, we acquired an additional 22.5% noncontrolling interest in Ashford Designer Outlet, increasing our ownership interest in this property to 45%.

On January 10, 2014, as discussed above, we acquired one of our partner's redeemable interests in a portfolio of ten properties, seven of which were consolidated and three were unconsolidated prior to the transaction. The three unconsolidated properties remained unconsolidated following the transaction.

For the purposes of the following comparison between the three months ended March 31, 2015 and 2014, the above transactions are referred to as the property transactions. In the following discussions of our results of operations, "comparable" refers to properties we owned and operated in both of the periods under comparison.

Three months ended March 31, 2015 vs. Three months ended March 31, 2014

Minimum rents increased $31.2 million during 2015, of which the property transactions accounted for $11.3 million of the increase. Comparable rents increased $19.9 million, or 2.9%, primarily attributable to an increase in base minimum rents.

Tenant reimbursements increased $14.7 million, due to a $6.9 million increase attributable to the property transactions and a $7.8 million, or 2.6%, increase in the comparable properties primarily due to annual fixed contractual increases related to common area maintenance and real estate tax recoveries.

Total other income increased $1.6 million, principally as a result of the following:

an $8.3 million gain on the sale of our interests in certain pre-development projects in Europe,

a $5.4 million increase attributable to dividend income, and

$1.5 million of net other activity,

partially offset by a $7.1 million decrease in lease settlement income, and

a $6.5 million decrease in land sale activity.

Real estate taxes increased $12.6 million, of which the property transactions accounted for $3.3 million, with the remaining increase primarily caused by higher tax estimates in 2015.

Other expenses decreased $0.3 million primarily due to the favorable net foreign currency revaluation impact on foreign currency denominated assets and liabilities, substantially offset by an increase in legal and professional fees and costs associated with our first quarter acquisition activity in 2015.

Interest expense decreased $22.1 million primarily due to the net impact of our financing activities during 2014 and 2015 and the reduction in our effective overall borrowing rate as previously discussed.

Income from unconsolidated entities increased $7.8 million primarily due to favorable results of operations and financing activity of joint venture properties partially offset by the unfavorable impact of foreign currency rate movements on international operations.

During 2015, we recorded a non-cash gain on Klépierre's acquisition of Corio of $206.9 million as discussed in Note 3 of the accompanying Condensed Notes to Consolidated Financial Statements. During 2014, we acquired the remaining 50% interest in Arizona Mills from our joint venture partner. The property was previously accounted for under the equity method and we recognized a non-cash gain upon consolidation of this property of $2.7 million.

Discontinued operations decreased $41.5 million due to 2014 including three months ownership of the Washington Prime properties, whereas 2015 did not include any ownership of those properties.

Net income attributable to noncontrolling interests increased $33.8 million due to an increase in the net income of the Operating Partnership.

Liquidity and Capital Resources

Because we own long-lived income-producing assets, our financing strategy relies primarily on long-term fixed rate debt. Floating rate debt currently comprises only 11.0% of our total consolidated debt at March 31, 2015. We also enter into interest rate protection agreements to manage our interest rate risk. We derive most of our liquidity from positive net cash flow from operations and distributions of capital from unconsolidated entities that totaled $1.1 billion during the three months ended March 31, 2015. In addition, the Credit Facility, the $2.75 billion supplemental unsecured revolving credit facility, or Supplemental Facility, and the Commercial Paper program provide alternative sources of liquidity as our cash needs vary from time to time. Borrowing capacity under these credit facilities may be increased as discussed further below.

Our balance of cash and cash equivalents from continuing operations increased $221.5 million during the first three months of 2015 to $833.7 million as of March 31, 2015 as further discussed in "Cash Flows" below.

On March 31, 2015, we had an aggregate available borrowing capacity of $5.2 billion under the Credit Facility and Supplemental Facility, net of outstanding borrowings of $1.0 billion and letters of credit of $36.9 million. For the three months ended March 31, 2015, the maximum aggregate amount outstanding under the two credit facilities was $1.5 billion and the weighted average amount outstanding was $1.1 billion. The weighted average interest rate was 0.83% for the three months ended March 31, 2015. Further, on October 6, 2014, the Operating Partnership entered into a global Commercial Paper program and on March 2, 2015, increased the maximum aggregate program size from $500.0 million to $1.0 billion as further discussed below.

We and the Operating Partnership have historically had access to public equity and long and short-term unsecured debt markets and access to secured debt and private equity from institutional investors at the property level.

Our business model and status as a REIT requires us to regularly access the debt markets to raise funds for acquisition, development and redevelopment activity, and to refinance maturing debt. We may also, from time to time, access the equity capital markets to accomplish our business objectives. We believe we have sufficient cash on hand and

availability under the Credit Facility, the Supplemental Facility, and the Commercial Paper program to address our debt maturities and capital needs through 2015.

Cash Flows

Our net cash flow from operating activities and distributions of capital from unconsolidated entities for the three months ended March 31, 2015 totaled $1.1 billion. In addition, we had net proceeds from our debt financing and repayment activities of $570.9 million in 2015. These activities are further discussed below under "Financing and Debt." During the first three months of 2015, we or the Operating Partnership also:

funded the acquisition of two properties for $682 million,

paid stockholder dividends and unitholder distributions totaling $509.3 million,

funded consolidated capital expenditures of $229.2 million (includes development and other costs of $38.5 million, redevelopment and expansion costs of $156.6 million, and tenant costs and other operational capital expenditures of $34.1 million), and

funded investments in unconsolidated entities of $23.4 million.

In general, we anticipate that cash generated from operations will be sufficient to meet operating expenses, monthly debt service, recurring capital expenditures, and dividends to stockholders necessary to maintain our REIT qualification on a long-term basis. In addition, we expect to be able to generate or obtain capital for nonrecurring capital expenditures, such as acquisitions, major building redevelopments and expansions, as well as for scheduled principal maturities on outstanding indebtedness, from:

excess cash generated from operating performance and working capital reserves,

borrowings on our credit facilities and Commercial Paper program,

additional secured or unsecured debt financing, or

additional equity raised in the public or private markets.

We expect to generate positive cash flow from operations in 2015, and we consider these projected cash flows in our sources and uses of cash. These cash flows are principally derived from rents paid by our retail tenants. A significant deterioration in projected cash flows from operations could cause us to increase our reliance on available funds from our credit facilities, curtail planned capital expenditures, or seek other additional sources of financing as discussed above.

Financing and Debt

Unsecured Debt

At March 31, 2015, our unsecured debt consisted of $13.3 billion of senior unsecured notes of the Operating Partnership, net of discounts, $1.0 billion outstanding under the Credit Facility, $240.0 million outstanding under an unsecured term loan, and $471.3 million outstanding under the Commercial Paper program. The March 31, 2015 balance on the Credit Facility included $753.8 million (U.S. dollar equivalent) of Euro-denominated borrowings and $185.5 million (U.S. dollar equivalent) of Yen-denominated borrowings. At March 31, 2015 the outstanding amount under the Commercial Paper program was $471.3 million, of which $186.3 million was related to U.S. dollar equivalent of Euro-denominated notes. Foreign currency denominated borrowings under both the Credit Facility and Commercial Paper program are designated as net investment hedges of a portion of our international investments.

On March 31, 2015, we had an aggregate available borrowing capacity of $5.2 billion under the Credit Facility and Supplemental Facility. The maximum outstanding balance of the credit facilities during the three months ended March 31, 2015 was $1.5 billion and the weighted average outstanding balance was $1.1 billion. Letters of credit of $36.9 million were outstanding under the two credit facilities as of March 31, 2015.

The Credit Facility's initial borrowing capacity of $4.0 billion may be increased to $5.0 billion during its term and provides for borrowings denominated in U.S. Dollars, Euros, Yen, Sterling, Canadian Dollars and Australian Dollars. Borrowings in currencies other than the U.S. Dollar are limited to 75% of the maximum revolving credit amount, as defined. The initial maturity date of the Credit Facility is June 30, 2018 and can be extended for an additional year to June 30, 2019 at our sole option. The base interest rate on the Credit Facility is LIBOR plus 80 basis points with an additional facility fee of 10 basis points.

On March 2, 2015, the Operating Partnership amended and extended the Supplemental Facility. The initial borrowing capacity of $2.0 billion has been increased to $2.75 billion, may be further increased to $3.5 billion during its term, will initially mature on June 30, 2019 and can be extended for an additional year to June 30, 2020 at our sole option.

The base interest rate on the amended Supplemental Facility was reduced to LIBOR plus 80 basis points and the additional facility fee was reduced to 10 basis points. The Supplemental Facility provides for borrowings denominated in U.S. Dollars, Euro, Yen, Sterling, Canadian Dollars and Australian Dollars.

On March 2, 2015, the Operating Partnership increased the maximum aggregate program size of its Commercial Paper program from $500.0 million to $1.0 billion, or the non-U.S. dollar equivalent thereof. The Operating Partnership may issue unsecured commercial paper notes, denominated in U.S. dollars, Euros and other currencies. Notes issued in non-U.S. currencies may be issued by one or more subsidiaries of the Operating Partnership and are guaranteed by the Operating Partnership. Notes will be sold under customary terms in the U.S and Euro commercial paper note markets and will rank (either by themselves or as a result of the guarantee described above) pari passu with the Operating Partnership's other unsecured senior indebtedness. Our Commercial Paper program is supported by our Credit Facility and Supplemental Facility and if necessary or appropriate, we may make one or more draws under either the Credit Facility or Supplemental Facility to pay amounts outstanding from time to time on the Commercial Paper program. At March 31, 2015, we had $471.3 million outstanding under the Commercial Paper program, comprised of $285.0 million outstanding in U.S. dollar denominated notes and $186.3 million (U.S. dollar equivalent) of Euro denominated notes with weighted average interest rates of 0.20% and 0.08%, respectively. The borrowings mature on various dates from April 8, 2015 to July 1, 2015.

Mortgage Debt

Total mortgage indebtedness was $6.6 billion and $6.2 billion at March 31, 2015 and December 31, 2014, respectively.

On January 15, 2015 we acquired two properties — Jersey Gardens in Elizabeth, New Jersey (renamed "The Mills at Jersey Gardens") and University Park Village in Fort Worth, Texas, subject to existing fixed-rate mortgage loans of $350.0 million and $55.0 million, respectively. The loans mature on November 1, 2020 and May 1, 2028 and bear interest at 3.83% and 3.85%, respectively.

Covenants

Our unsecured debt agreements contain financial and other non-financial covenants. If we were to fail to comply with these covenants, after the expiration of the applicable cure periods, the debt maturity could be accelerated or other remedies could be sought by the lender including adjustments to the applicable interest rate. As of March 31, 2015, we were in compliance with all covenants of our unsecured debt.

At March 31, 2015, we or our subsidiaries are the borrowers under 40 non-recourse mortgage notes secured by mortgages on 54 properties, including five separate pools of cross-defaulted and cross-collateralized mortgages encumbering a total of 21 properties. Under these cross-default provisions, a default under any mortgage included in the cross-defaulted pool may constitute a default under all mortgages within that pool and may lead to acceleration of the indebtedness due on each property within the pool. Certain of our secured debt instruments contain financial and other non-financial covenants which are specific to the properties which serve as collateral for that debt. If the borrower fails to comply with these covenants, the lender could accelerate the debt and enforce its right against their collateral. At March 31, 2015, the applicable borrowers under these non-recourse mortgage notes were in compliance with all covenants where non-compliance could individually, or giving effect to applicable cross-default provisions in the aggregate, have a material adverse effect on our financial condition, results of operations or cash flows.

Summary of Financing

Our consolidated debt, adjusted to reflect outstanding derivative instruments, and the effective weighted average interest rates as of March 31, 2015 and December 31, 2014, consisted of the following (dollars in thousands):

Debt Subject toAdjusted Balance as of March 31, 2015Effective Weighted Average Interest RateAdjusted Balance as of December 31, 2014Effective Weighted Average Interest Rate
Fixed Rate$19,313,4684.71%$19,015,2714.72%
Variable Rate2,380,5871.06%1,837,7221.16%
​​​​​​​​​​​​​​
$21,694,0554.31%$20,852,9934.41%
​​​​​​​​​​​​​​
​​​​​​​​​​​​​​
​​​​​​​​​​​​​​

Contractual Obligations

There have been no material changes to our outstanding capital expenditure and lease commitments previously disclosed in our 2014 Annual Report on Form 10-K.

In regards to long-term debt arrangements, the following table summarizes the material aspects of these future obligations on our consolidated indebtedness as of March 31, 2015, for the remainder of 2015 and subsequent years thereafter (dollars in thousands) assuming the obligations remain outstanding through initial maturities including applicable exercise of available extension options:

20152016-20172018-2019After 2019Total
Long Term Debt (1)$1,221,080$5,931,037$4,433,439$10,085,838$21,671,394
Interest Payments (2)698,1791,466,5521,006,1932,488,9925,659,916

(1)

Represents principal maturities only and therefore, excludes net premiums of $22,661.

(2)

Variable rate interest payments are estimated based on the LIBOR rate at March 31, 2015.

Off-Balance Sheet Arrangements

Our off-balance sheet arrangements consist primarily of our investments in joint ventures which are common in the real estate industry and are described in Note 5 of the condensed notes to consolidated financial statements. Our joint ventures typically fund their cash needs through secured debt financings obtained by and in the name of the joint venture entity. The joint venture debt is secured by a first mortgage, is without recourse to the joint venture partners, and does not represent a liability of the partners, except to the extent the partners or their affiliates expressly guarantee the joint venture debt. As of March 31, 2015, the Operating Partnership guaranteed joint venture related mortgage indebtedness of $335.3 million (of which we have a right of recovery from our joint venture partners of $129.0 million). Mortgages guaranteed by us are secured by the property of the joint venture which could be sold in order to satisfy the outstanding obligation and which has an estimated fair value in excess of the guaranteed amount. We may elect to fund cash needs of a joint venture through equity contributions (generally on a basis proportionate to our ownership interests), advances or partner loans, although such fundings are not typically required contractually or otherwise.

Acquisitions and Dispositions

Buy-sell, marketing rights, and other exit mechanisms are common in real estate partnership agreements. Most of our partners are institutional investors who have a history of direct investment in retail real estate. We and our partners in our joint venture properties may initiate these provisions (subject to any applicable lock up or similar restrictions). If we determine it is in our stockholders' best interests for us to purchase the joint venture interest and we believe we have adequate liquidity to execute the purchase without hindering our cash flows, then we may initiate these provisions or elect to buy our partner's interest. If we decide to sell any of our joint venture interests, we expect to use the net proceeds to reduce outstanding indebtedness or to reinvest in development, redevelopment, or expansion opportunities.

Acquisitions. On January 15, 2015, we acquired a 100% interest in Jersey Gardens (renamed The Mills at Jersey Gardens) in Elizabeth, New Jersey and University Park Village in Fort Worth, Texas, properties previously owned by Glimcher Realty Trust for $677.9 million of cash and the assumption of existing mortgage debt of $405.0 million.

On April 10, 2014, through our joint venture with McArthurGlen, we acquired an additional 22.5% noncontrolling interest in Ashford Designer Outlet, increasing our ownership interest in this property to 45%.

On January 30, 2014, we acquired the remaining 50% interest in Arizona Mills from our joint venture partner, as well as approximately 39 acres of land in Oyster Bay, New York, for approximately $145.8 million, consisting of cash consideration and 555,150 units of the Operating Partnership. Arizona Mills is subject to a mortgage which was $166.9 million at the time of the acquisition. The consolidation of this previously unconsolidated property resulted in a remeasurement of our previously held interest to fair value and a corresponding non-cash gain of $2.7 million in the first quarter of 2014. We now own 100% of this property.

On January 10, 2014, we acquired one of our partner's interests in a portfolio of ten properties for approximately $114.4 million, seven of which were previously consolidated.

Dispositions. We continue to pursue the disposition of properties that no longer meet our strategic criteria or that are not a primary retail venue within their trade area.

During the first three months of 2015, we did not dispose of any interests in our properties.

Joint Venture Formation Activity

In February 2015, we agreed to create a joint venture with Hudson's Bay Company, or HBC. Upon formation of the joint venture, HBC will contribute 42 owned properties for an eventual pro forma 80% equity interest in the newly formed joint venture. We have committed to contribute $100.0 million to the newly formed joint venture for improvements to the properties contributed by HBC. We may contribute up to an additional $178.5 million for an eventual pro forma equity stake of 20% in the newly formed joint venture. We expect this transaction to close during the second quarter of 2015.

On April 13, 2015, we announced we had formed a joint venture with Sears Holdings, or Sears, whereby Sears contributed 10 of its properties at our malls to the newly formed joint venture in exchange for a 50% noncontrolling interest in this joint venture. We have contributed cash in the amount of $114.0 million in exchange for a 50% noncontrolling interest in the newly formed joint venture. Sears or its affiliates are leasing back each of those properties from the joint venture. The joint venture has the right to recapture not less than 50% of the space leased to Sears to be used for purposes of redeveloping and releasing the recaptured space. We will provide development, leasing and management services to the joint venture. We have also agreed to invest $33.0 million in common shares of Seritage Growth Properties, a REIT recently formed by Sears. Sears has informed us that they plan to transfer its interest in the newly formed joint venture to Seritage Growth Properties.

Development Activity

New Domestic Developments, Redevelopments and Expansions. Construction continues on three new Premium Outlets opening in 2015:

Gloucester Premium Outlets, a 375,000 square foot project located in Gloucester, New Jersey, which is scheduled to open in August 2015. We own a 50% noncontrolling interest in this project. Our estimated share of the cost of this project is $61.4 million.

Tucson Premium Outlets, a 366,000 square foot project, which is scheduled to open in September 2015. We own a 100% interest in this project. The estimated cost of this project is $95.0 million.

Tampa Premium Outlets, a 441,000 square foot project, which is scheduled to open in October 2015. We own a 100% interest in this project. The estimated cost of this project is $129.2 million.

During the fourth quarter of 2014, we announced plans to develop The Shops at Clearfork, a new 500,000 square foot project located in Fort Worth, Texas, which is scheduled to open in February 2017. Construction is expected to begin in May 2015. We own a 45% noncontrolling interest in this project.

On April 23, 2015, we announced a three-way partnership with Swire Properties Inc. and Whitman Family Development to jointly develop the 500,000-square-foot shopping center component of Brickell City Centre, a mixed-use development in downtown Miami. We own a 25% interest in the retail component of this project which is scheduled to open in the fall of 2016. Our share of the estimated cost of this project is approximately $100 million.

We routinely incur costs related to construction for significant redevelopment and expansion projects at our properties. Redevelopment and expansion projects, including the addition of anchors and big box tenants, are underway at more than 20 properties in the U.S.

Our share of the costs of all development and redevelopment projects currently under construction is approximately $2.1 billion. We expect to fund these capital projects with cash flows from operations. Our estimated stabilized return on invested capital typically ranges between 8-12% for all of our new development, expansion and redevelopment projects.

International Development Activity. We typically reinvest net cash flow from our international joint ventures to fund future international development activity. We believe this strategy mitigates some of the risk of our initial investment and our exposure to changes in foreign currencies. We have also funded most of our foreign investments with local currency-denominated borrowings that act as a natural hedge against fluctuations in exchange rates. Our consolidated net income exposure to changes in the volatility of the Euro, Yen, Won, and other foreign currencies is not material. We expect our share of international development costs for 2015 will be approximately $114 million, primarily funded through reinvested joint venture cash flow and construction loans.

The following table describes these new development and expansion projects as well as our share of the estimated total cost as of March 31, 2015 (in millions):

PropertyLocationGross Leasable Area (sqft)Our Ownership PercentageOur Share of Projected Net Cost (in Local Currency)Our Share of Projected Net Cost (in USD)Projected Opening Date
New Development Projects:
Vancouver Designer OutletsVancouver (British Columbia), Canada242,00045%CAD 68.7$54.3Summer - 2015
Expansions:
Yeoju Premium Outlets Phase 2Gyeonggi Province, South Korea265,40050%KRW 79,361$71.8Opened Feb. - 2015
Shisui Premium Outlets Phase 2Shisui (Chiba), Japan136,00040%JPY 2,895$24.1Opened Apr - 2015

Dividends and Stock Repurchase Program

We paid a common stock dividend of $1.40 per share in the first quarter of 2015. Our Board of Directors declared a cash dividend for the second quarter of 2015 of $1.50 per share of common stock payable on May 29, 2015 to stockholders of record on May 15, 2015. We must pay a minimum amount of dividends to maintain our status as a REIT. Our future dividends and future distributions of the Operating Partnership will be determined by the Board of Directors based on actual results of operations, cash available for dividends and limited partner distributions, cash reserves as deemed necessary for capital and operating expenditures, and the amount required to maintain our status as a REIT.

On April 2, 2015, our Board of Directors authorized us to repurchase up to $2.0 billion of our common stock over the next twenty-four months as market conditions warrant. We may repurchase the shares in the open market or in privately negotiated transactions.

Forward-Looking Statements

Certain statements made in this section or elsewhere in this report may be deemed "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Although we believe the expectations reflected in any forward-looking statements are based on reasonable assumptions, we can give no assurance that its expectations will be attained, and it is possible that our actual results may differ materially from those indicated by these forward-looking statements due to a variety of risks, uncertainties and other factors. Such factors include, but are not limited to: our ability to meet debt service requirements, the availability and terms of financing, changes in our credit rating, changes in market rates of interest and foreign exchange rates for foreign currencies, changes in value of investments in foreign entities, the ability to hedge interest rate and currency risk, risks associated with the acquisition, development, expansion, leasing and management of properties, general risks related to retail real estate, the liquidity of real estate investments, environmental liabilities, international, national, regional and local economic conditions, changes in market rental rates, security breaches that could compromise our information technology or infrastructure or personally identifiable data of customers of our retail properties, trends in the retail industry, relationships with anchor tenants, the inability to collect rent due to the bankruptcy or insolvency of tenants or otherwise, risks relating to joint venture properties, the intensely competitive market environment in the retail industry, costs of common area maintenance, risks related to international activities, insurance costs and coverage, the loss of key management personnel, terrorist activities, changes in economic and market conditions and maintenance of our status as a real estate investment trust. We discussed these and other risks and uncertainties under the heading "Risk Factors" in our most recent Annual Report on Form 10-K. We may update that discussion in subsequent Quarterly Reports on Form 10-Q, but otherwise we undertake no duty or obligation to update or revise these forward-looking statements, whether as a result of new information, future developments, or otherwise.

Non-GAAP Financial Measures

Industry practice is to evaluate real estate properties in part based on performance measures such as FFO, diluted FFO per share, NOI and comparable property NOI. We believe that these non-GAAP measures are helpful to investors because they are widely recognized measures of the performance of REITs and provide a relevant basis for comparison among REITs. We also use these measures internally to measure the operating performance of our portfolio.

We determine FFO based on the definition set forth by the National Association of Real Estate Investment Trusts, or NAREIT, as consolidated net income computed in accordance with GAAP:

excluding real estate related depreciation and amortization,

excluding gains and losses from extraordinary items and cumulative effects of accounting changes,

excluding gains and losses from the sales or disposals of previously depreciated retail operating properties,

excluding impairment charges of depreciable real estate,

plus the allocable portion of FFO of unconsolidated entities accounted for under the equity method of accounting based upon economic ownership interest, and

all determined on a consistent basis in accordance with GAAP.

We have adopted NAREIT's clarification of the definition of FFO that requires us to include the effects of nonrecurring items not classified as extraordinary, cumulative effect of accounting changes, or a gain or loss resulting from the sale of, or any impairment charges related to, previously depreciated retail operating properties.

We include in FFO gains and losses realized from the sale of land, outlot buildings, marketable and non-marketable securities, and investment holdings of non-retail real estate. We also include in FFO the impact of foreign currency exchange gains and losses, legal expenses, transaction expenses and other items required by GAAP.

You should understand that our computations of these non-GAAP measures might not be comparable to similar measures reported by other REITs and that these non-GAAP measures:

do not represent cash flow from operations as defined by GAAP,

should not be considered as alternatives to consolidated net income determined in accordance with GAAP as a measure of operating performance, and

are not alternatives to cash flows as a measure of liquidity.

The following schedule reconciles total FFO to consolidated net income and diluted net income per share to diluted FFO per share.

For the Three Months Ended March 31,
20152014
(in thousands)
Funds from Operations$830,731$865,333
​​​​​​​​
​​​​​​​​
​​​​​​​​
Change in FFO from prior period–4.0%16.6%
​​​​​​​​
​​​​​​​​
​​​​​​​​
Consolidated Net Income$632,435$401,103
Adjustments to Arrive at FFO:
Depreciation and amortization from consolidated properties284,227322,604
Our share of depreciation and amortization from unconsolidated entities, including Klépierre123,884147,256
Gain upon acquisition of controlling interests and sale or disposal of assets and interests in unconsolidated entities, net(206,927)(2,897)
Net income attributable to noncontrolling interest holders in properties(690)(523)
Noncontrolling interests portion of depreciation and amortization(885)(897)
Preferred distributions and dividends(1,313)(1,313)
​​​​​​​​
FFO of the Operating Partnership (A)$830,731$865,333
FFO allocable to limited partners120,305124,878
​​​​​​​​
Dilutive FFO allocable to common stockholders$710,426$740,455
​​​​​​​​
​​​​​​​​
​​​​​​​​
Diluted net income per share to diluted FFO per share reconciliation:
Diluted net income per share$1.73$1.10
Depreciation and amortization from consolidated properties and our share of depreciation and amortization from unconsolidated entities, including Klépierre, net of noncontrolling interests portion of depreciation and amortization1.121.29
Gain upon acquisition of controlling interests and sale or disposal of assets and interests in unconsolidated entities, net(0.57)(0.01)
​​​​​​​​
Diluted FFO per share (A)$2.28$2.38
​​​​​​​​
​​​​​​​​
​​​​​​​​
Basic and Diluted weighted average shares outstanding311,101310,623
Weighted average limited partnership units outstanding52,68352,386
​​​​​​​​
Basic and Diluted weighted average shares and units outstanding363,784363,009
​​​​​​​​
​​​​​​​​
​​​​​​​​

(A)

Includes FFO of the Operating Partnership related to the Washington Prime properties, net of transaction expenses, of $88.4 million ($0.24 per basic and diluted share) for the three months ended March 31, 2014.

The following schedule reconciles consolidated net income to NOI and sets forth the computations of comparable property NOI.

For the Three Months Ended March 31,
20152014
(in thousands)
Reconciliation of NOI of consolidated properties:
Consolidated Net Income$632,435$401,103
Discontinued operations—(41,502)
Income and other taxes6,3626,863
Interest expense232,173254,234
Income from unconsolidated entities(64,872)(57,078)
Gain upon acquisition of controlling interests and sale or disposal of assets and interests in unconsolidated entities, net(206,927)(2,655)
​​​​​​​​
Operating Income599,171560,965
Depreciation and amortization288,106280,493
​​​​​​​​
NOI of consolidated properties$887,277$841,458
​​​​​​​​
​​​​​​​​
​​​​​​​​
Reconciliation of NOI of unconsolidated entities:
Net Income$172,042$167,581
Interest expense147,020151,637
Income from operations of discontinued joint venture interests—(2,985)
​​​​​​​​
Operating Income319,062316,233
Depreciation and amortization141,659152,148
​​​​​​​​
NOI of unconsolidated entities$460,721$468,381
​​​​​​​​
​​​​​​​​
​​​​​​​​
Total consolidated and unconsolidated NOI from continuing operations$1,347,998$1,309,839
​​​​​​​​
​​​​​​​​
​​​​​​​​
Change in total NOI from continuing operations from prior period2.9%
Adjustments to NOI:
NOI of discontinued consolidated properties—100,875
NOI of discontinued unconsolidated properties—10,476
​​​​​​​​
Total NOI of our portfolio$1,347,998$1,421,190
​​​​​​​​
​​​​​​​​
​​​​​​​​
Add: Our share of NOI from Klépierre43,29766,876
Less: Joint venture partners' share of NOI from continuing operations241,323240,223
Less: Joint venture partners' share of NOI from discontinued operations—7,858
​​​​​​​​
Our share of NOI$1,149,972$1,239,985
​​​​​​​​
​​​​​​​​
​​​​​​​​
Total NOI of our portfolio$1,347,998$1,421,190
NOI from non comparable properties (1)201,890313,382
​​​​​​​​
Total NOI of comparable properties (2)$1,146,108$1,107,808
​​​​​​​​
​​​​​​​​
​​​​​​​​
Increase in NOI of U.S. Malls, Premium Outlets, and The Mills that are comparable properties3.5%
​​​​​​​​
​​​​​​​​
​​​​​​​​

(1)

NOI excluded from comparable property NOI relates to Washington Prime properties, international properties, other retail properties, TMLP properties, any of our non-retail holdings and results of our corporate and management company operations, NOI of U.S. Malls, Premium Outlets, and The Mills not owned and operated in both periods under comparison and excluded income noted in footnote 2 below.

(2)

Excludes lease termination income, interest income, land sale gains, straight line rent, above/below market rent adjustments, and the impact of significant redevelopment activities.

Item 3. Qualitative and Quantitative Disclosures About Market Risk

**

Sensitivity Analysis. We disclosed a qualitative and quantitative analysis regarding market risk in the Management's Discussion and Analysis of Financial Condition and Results of Operations included in our 2014 Annual Report on Form 10-K. There have been no material changes in the assumptions used or results obtained regarding market risk since December 31, 2014.

Item 4. Controls and Procedures

**

Evaluation of Disclosure Controls and Procedures

Original Evaluation of Disclosure Controls and Procedures. We maintain disclosure controls and procedures (as defined in Rules 13a-15(e) under the Securities Exchange Act of 1934 (the "Exchange Act")) that are designed to provide reasonable assurance that information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to Simon's management, including the Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosures. Because of inherent limitations, disclosure controls and procedures, no matter how well designed and operated, can provide only reasonable, and not absolute, assurance that the objectives of disclosure controls and procedures are met.

Simon's management, with the participation of the Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the design and operation of our disclosure controls and procedures as of March 31, 2015. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of March 31, 2015, our disclosure controls and procedures were effective at a reasonable assurance level.

Consideration of Restatement. In light of the amendment and restatement discussed in Note 3 of the condensed notes to the unaudited interim consolidated financial statements, resulting from the non-cash error identified as part of our year end reporting procedures and controls, our Chief Executive Officer and Chief Financial Officer reevaluated the effectiveness of our disclosure controls and procedures as of March 31, 2015, including whether the non-cash error was the result of a material weakness in our internal control over financial reporting. As part of this assessment, among other matters, we reconsidered whether our existing controls around the accounting for capital transactions at our equity method investees are expected to provide us with a reasonable level of assurance in meeting their stated objective. In this assessment, we considered both the controls that were in place during our interim periods and the controls that were in place in connection with our year end reporting procedures. Based on this assessment, our Chief Executive Officer and Chief Financial Officer have concluded that the controls that functioned as part of our year end reporting procedures were sufficient to provide us with a reasonable level of assurance of their effectiveness, and that had such controls functioned on an interim basis — as they now have been implemented as of December 31, 2015 — they would have been sufficient to detect the non-cash error in our unaudited interim consolidated financial statements as of March 31, 2015.

Changes in Internal Control Over Financial Reporting. There have not been any changes in our internal control over financial reporting (as defined in Rule 13a-15(f)) that occurred during the quarter ended March 31, 2015 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Part II — Other Information

Item 1. Legal Proceedings

**

We are involved from time-to-time in various legal proceedings that arise in the ordinary course of our business, including, but not limited to commercial disputes, environmental matters, and litigation in connection with transactions including acquisitions and divestitures. We believe that such litigation, claims, and administrative proceedings will not have a material adverse impact on our financial position or our results of operations. We record a liability when a loss is considered probable, and the amount can be reasonably estimated.

Item 1A. Risk Factors

**

Through the period covered by this report, there were no material changes to the Risk Factors disclosed under Item 1A: Risk Factors in Part I of our 2014 Annual Report on Form 10-K.

**Item 2. Unregistered Sales of Equity Securities and Use of Proceeds **

During the quarter ended March 31, 2015, we issued 483,154 shares of common stock to five limited partners of the Operating Partnership in exchange for an equal number of units pursuant to the partnership agreement of the Operating Partnership, as follows:

61,000 shares on January 13, 2015, and

422,154 shares on February 4, 2015

In each case, the issuance of the shares of common stock was exempt from registration pursuant to Section 4(a)(2) of the Securities Act of 1933, as amended.

Issuer Purchases of Equity Securities

The following table summarizes repurchases of common stock settled during the three month period ended March 31, 2015:

PeriodTotal Number of Shares PurchasedAverage Price Paid per ShareTotal Number Of Shares Purchased as Part of Publicly Announced ProgramsApproximate Dollar Value of Shares that May Yet Be Purchased Under Programs (2)
January 1, 2015 to January 31, 2015 (1)2,289$182.39——
February 1, 2015 to February 28, 2015————
March 1, 2015 to March 31, 2015————
​​​​​​​​​​​​​​
2,289—
​​​​​​​​​​​​​​

(1)

Total number of shares purchased represents shares withheld by us and transferred to treasury shares in connection with employee payroll tax withholding upon the vesting of certain restricted stock awards.

(2)

On April 2, 2015, our Board of Directors authorized us to repurchase up to $2.0 billion of our common stock over the next twenty-four months as market conditions warrant. We may repurchase the shares in the open market or in privately negotiated transactions.

**Item 3. Defaults Upon Senior Securities **

Not applicable.

**Item 4. Mine Safety Disclosures **

Not applicable.

Item 5. Other Information

**

During the quarter covered by this report, the Audit Committee of our Board of Directors approved certain audit, audit-related, and non-audit tax compliance and tax consulting services to be provided by Ernst & Young LLP, our independent registered public accounting firm. This disclosure is made pursuant to Section 10A(i)(2) of the Exchange Act as added by Section 202 of the Sarbanes-Oxley Act of 2002.

Item 6. Exhibits

**

Exhibit NumberExhibit Descriptions
10.1Amended and Restated $2,750,000,000 Credit Agreement dated as of March 2, 2015 (incorporated by reference to Exhibit 10.1 of Simon Property Group, L.P.'s Current Report on Form 8-K filed March 3, 2015).
10.2Notice of Increase of Maximum Amount under Global Dealer Agreement dated as of February 27, 2015 (incorporated by reference to Exhibit 10.2 of Simon Property Group, L.P.'s Current Report on Form 8-K filed March 3, 2015).
10.3*Form of Simon Property Group Series 2015 LTIP Unit Award Agreement.
31.1Certification by the Chief Executive Officer pursuant to rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2Certification by the Chief Financial Officer pursuant to rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32Certification by the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INSXBRL Instance Document
101.SCHXBRL Taxonomy Extension Schema Document
101.CALXBRL Taxonomy Extension Calculation Linkbase Document
101.LABXBRL Taxonomy Extension Label Linkbase Document
101.PREXBRL Taxonomy Extension Presentation Linkbase Document
101.DEFXBRL Taxonomy Extension Definition Linkbase Document

Represents a management contract, or compensatory plan, contract or arrangement required to be filed pursuant to Regulation S-K.

**SIGNATURES **

Pursuant to the requirements 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.

SIMON PROPERTY GROUP, INC.
/s/ ANDREW JUSTER Andrew Juster Executive Vice President and Chief Financial Officer
Date: January 13, 2016