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**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

 

**
 
**

**FORM 20-F**

 

**
 
**

 

**OR**

 

**For the fiscal year ended: 30 December 2011**

**OR**

 

**OR**

 

**Date of event requiring this shell company report**

**For the transition period from              to             **

**Commission file number 000-53684**

 

**
 
**

**CSR plc**

**(Exact name of Registrant as specified in its charter)**

 

**
 
**

**ENGLAND**

**(Jurisdiction ofincorporation or organization)**

**Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, England, Tel: +44 (0)1223 692 000**

**(Address of principal executive offices)**

**Adam R. Dolinko, General Counsel – Tel: +44 (0) 1223 692 000, Fax: +44 (0) 1223 692 001**

**Churchill House, Cambridge Business Park, Cowley Road, Cambridge CB4 0WZ, England**

**(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)**

Securities registered or to be registered pursuant to Section 12(b) of the Act: 

 

 

 

**
 
**

Securities registered or to be registered pursuant to Section 12(g) of the Act: **None**

Securities for whichthere is a reporting obligation pursuant to Section 15(d) of the Act: **None**

Indicate the number of outstanding shares of each of the issuer’sclasses of capital or common stock as of the close of the period covered by the annual report. 

 

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

Ifthis report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.    Yes   ̈    No  x

Indicate by check mark whether the Registrant (1) hasfiled 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 suchfiling requirements for the past 90days.    Yes  x    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 besubmitted 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 suchfiles).    Yes   ̈    No   ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “acceleratedfiler and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one): 

 

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in thisfiling: 

 

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement itemthe registrant has elected to follow.    Item17   ̈    Item 18   ̈

Ifthis is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). 

Yes   ̈    No  x

(APPLICABLE ONLY TO ISSUERS INVOLVEDIN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS.) 

Indicate by check mark whether the registrant has filed all documents and reports required to befiled by Sections 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   ̈

 

 

 

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