Please access Form 20-F.
Panasonic has not filed the Form 20-F with the U.S. Securities and Exchange Commission ("SEC") since the fiscal year ended March 31, 2013 after its deregistration from SEC.
However, Panasonic filed a Special Financial Report for Fiscal 2015 to the SEC pursuant to Section 13 or 15(d), and Rule 15d-2 of the U.S. Securities Exchange Act of 1934, as amended. This is due to the fact that Panasonic filed a Form F-4 to the SEC under the U.S. Securities Act of 1933, in regard to the announcement of share exchange with Panasonic Information Systems Co., Ltd. on February 3, 2015 and that the Form F-4 became effective on May 1, 2015.
Alternatively, you can see the English translations of the Annual Securities Report filed with Japanese government pursuant to the Financial Instruments and Exchange Act of Japan.