| Ohio                                                                 |                                                       | 34-6513657                           |
|----------------------------------------------------------------------|------------------------------------------------------------|--------------------------------------|
| (State or other jurisdiction of incorporation or organization)  |                                                       | (IRS Employer Identification Number) |
|                                                                 |                                                  |                                 |   |
| 7 Bulfinch Place, Suite 500, Boston, Massachusetts              |                                                       | 02114                                |
| (Address of principal executive offices)                             |                                                       | (Zip Code)                           |
|                                                                 |                                                       |                                 |   |
|                                                                 | (617) 570-4614                                             |                                 |
|                                                                 | (Registrant’s telephone number, including area code) |                                 |

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

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|                               | Winthrop Realty Trust |                       |
|------------------------------------|-----------------------|----------------------------|
| Date:  September 1, 2011 |                  |                       |
|                               |                  |                       |   |
|                               | By:                   | /s/ Michael L. Ashner |   |
|                               |                  | Michael L. Ashner          |   |
|                               |                  | Chief Executive Officer    |   |
|                               |                  |                       |   |

| Date:  September 1, 2011 |   |                       |
|------------------------------------|--------|----------------------------|
|                               |   |                       |   |
|                               | By:    | /s/ Thomas C. Staples |   |
|                               |   | Thomas C. Staples          |   |
|                               |   | Chief Financial Officer    |   |

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| Exhibit | Description                                                                                                                                                                                                                                                                                    |   | PageNumber |
|---------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|------------|
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 3.1     | Second Amended and Restated Declaration of Trust as of May 21, 2009 - Incorporated by reference to Exhibit 3.1 to the Trust’s Quarterly Report on Form 10-Q for the period ended June 30, 2009.                                                                                          |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 3.2     | By-laws of Winthrop Realty Trust as amended and restated on November 3, 2009 - Incorporated by reference to Exhibit 3.1 to the Trust’s Current Report on Form 8-K filed November 6, 2009.                                                                                                |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 3.3     | Amendment to By-laws - Incorporated by reference to Exhibit 3.1 to the Trust’s Current Report on Form 8-K filed March 6, 2010.                                                                                                                                                           |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 4.1     | Form of certificate for Common Shares of Beneficial Interest.  Incorporated by reference to Exhibit 4.1 to the Trust’s Annual Report on Form 10-K for the year ended December 31, 2008.                                                                                        |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 4.2     | Warrant to purchase 500,000 shares of Beneficial Interest of Trust - Incorporated by reference to Exhibit 4(l) to the Trust’s Annual Report on Form 10-K for the year ended December 31, 1998.                                                                                           |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 4.3     | Agreement of Limited Partnership of WRT Realty L.P., dated as of January 1, 2005 - Incorporated by reference to Exhibit 4.1 to the Trust’s Form 8-K filed January 4, 2005.                                                                                                               |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 4.4     | Amended and Restated Certificate of Designations for Series B-1 Cumulative Convertible Redeemable Preferred Shares of Beneficial Interest (“Series B-1 Certificate of Designations”) - Incorporated by reference to Exhibit 4.1 to the Trust’s Form 8-K filed June 21, 2005. |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 4.5     | Amendment No. 1 to Series B-1 Certificate of Designations - Incorporated by reference to Exhibit 4.1 to the Trust’s Form 8-K filed November 13, 2007.                                                                                                                                    |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 4.6     | Certificate of Designations for Series C Cumulative Convertible Redeemable Preferred Shares of Beneficial Interest - Incorporated by reference to Exhibit 4.1 to the Trust’s Form 8-K filed November 2, 2009.                                                                            |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 10.1    | Stock Purchase Agreement between the Trust and FUR Investors, LLC, dated as of November 26, 2003, including Annex A thereto, being the list of Conditions to the Offer - Incorporated by reference to Exhibit 10.1 to the Trust’s Form 8-K filed December 1, 2003.                       |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 10.2    | Second Amended and Restated Advisory Agreement dated March 5, 2009, between the Trust, WRT Realty L.P. and FUR Advisors LLC. Incorporated by reference to Exhibit 10.3 to the Trust’s Annual Report on Form 10-K for the year ended December 31, 2008.                                   |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 10.3    | Amendment No. 1 to Second Amended and Restated Advisory Agreement - Incorporated by reference to Exhibit 10.30 to the Trust’s Quarterly Report on Form 10-Qfor the period ended March 31, 2009.                                                                                          |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 10.4    | Amendment No. 2 to Second Amended and Restated Advisory Agreement - Incorporated by reference to Exhibit 10.1 to the Trust’s Form 8-K filed January 29, 2010.                                                                                                                            |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 10.5    | Exclusivity Services Agreement between the Trust and Michael L. Ashner - Incorporated by reference to Exhibit 10.4 to the Trust’s Form 8-K filed December 1, 2003.                                                                                                                       |   | -          |
|    |                                                                                                                                                                                                                                                                                           |   |       |
| 10.6    | Amendment No. 1 to Exclusivity Agreement, dated November 7, 2005 - Incorporated by reference to Exhibit 10.7 to the Trust’s Form 8-K filed November 10, 2005.                                                                                                                            |   | -          |

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| 10.7   | Covenant Agreement between the Trust and FUR Investors, LLC - Incorporated by reference to Exhibit 10.5 to the Trust’s Form 8-K filed December 1, 2003.                                                                                                                                       |   | -      |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------|
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.8   | Amended and Restated Omnibus Agreement, dated March 16, 2005, among Gerald Nudo, Laurence Weiner and WRT Realty L.P. - Incorporated by reference to Exhibit 10.1 to the Trust’s Form 8-K filed March 18, 2005.                                                                                |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.9   | Agreement, dated as of July 1, 2009, among Gerald Nudo, Laurence Weiner and WRT Realty L.P.  Incorporated by reference to Exhibit 10.14 to the Trust’s Form 10-Q for the period ended June 30, 2009 filed August 10, 2009.                                                          |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.10  | Securities Purchase Agreement, dated February 25, 2005, between First Union Real Estate Equity and Mortgage Investments, Perrin Holden & Davenport Capital Corp. and the Investors named therein - Incorporated by reference to Exhibit 10.1 to the Trust’s Form 8-K filed March 3, 2005. |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.11  | Securities Purchase Agreement, dated June 15, 2005, between First Union Real Estate Equity and Mortgage Investments, Perrin Holden & Davenport Capital Corp. and the Investors named therein - Incorporated by reference to Exhibit 10.1 to the Trust’s Form 8-K filed June 21, 2005.     |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.12  | Amended and Restated Registration Rights Agreement, dated June 20, 2005, between First Union Real Estate Equity and Mortgage Investments and the Investors named therein  - Incorporated by reference to Exhibit 10.2 to the Trust’s Form 8-K filed June 21, 2005.                  |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.13  | Amended and Restated Investor Rights Agreement, dated June 20, 2005, between First Union Real Estate Equity and Mortgage Investments and the Investors named therein - Incorporated by reference to Exhibit 10.3 to the Trust’s Form 8-K filed June 21, 2005.                                 |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.14  | Securities Purchase Agreement, dated November 7, 2005, between the Trust and Vornado Investments L.L.C. (“Vornado”) - Incorporated by reference to Exhibit 10.1 to the Trust’s Form 8-K filed November 10, 2005.                                                                  |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.15  | Agreement between Michael L. Ashner and Winthrop Realty Trust dated July 23, 2006 - Incorporated by reference to Exhibit 10.2 to the Trust’s Form 8-K filed July 25, 2006.                                                                                                                    |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.16  | Winthrop Realty Trust 2007 Long Term Stock Incentive Plan - Incorporated by reference to the Trust’s Definitive Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on March 30, 2007.                                                                          |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.17  | Form of Series B-1 and Series C Preferred Share Purchase Agreement, dated November 1, 2009- Incorporated by reference to Exhibit 10.1 to the Trust’s Form 8-K filed November 2, 2009.                                                                                                         |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.18  | Investor Rights Agreement (Series C Preferred Shares), dated November 1, 2009, between Winthrop Realty Trust and the investors party thereto - Incorporated by reference to Exhibit 10.2 to the Trust’s Form 8-K filed November 2, 2009.                                                      |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.19  | Amended and Restated Loan Agreement, dated as of March 3, 2011, between WRT Realty L.P. and KeyBank, National Association. – Incorporated by reference to Exhibit 10.19 to the Trust’s 10-K filed March 16, 2011.                                                                       |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 10.20  | Guaranty from Winthrop Realty Trust and certain of its Subsidiaries in favor of KeyBank, National Association. – Incorporated by reference to Exhibit 10.20 to the Trust’s 10-K filed March 16, 2011.                                                                                   |   | -      |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 31     | Certifications Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                           |   | (1)    |
|   |                                                                                                                                                                                                                                                                                                |   |   |
| 32     | Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                            |   | (1)    |

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| 101.INS | XBRL Instance Document                                 |   | (2)    |
|---------|--------------------------------------------------------|--------|--------|
|    |                                                   |   |   |
| 101.SCH | XBRL Taxonomy Extension Schema                         |   | (2)    |
|    |                                                   |   |   |
| 101.CAL | XBRL Taxonomy Extension Calculation Linkbase           |   | (2)    |
|    |                                                   |   |   |
| 101.LAB | XBRL Taxonomy Extension Labels Linkbase Document       |   | (2)    |
|    |                                                   |   |   |
| 101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document |   | (2)    |
|    |                                                   |   |   |
| 101.DEF | XBRL Taxonomy Extension Definition Linkbase Document   |   | (2)    |