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<a name="s15B98999544F0AF75E95F73802693521"></a><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><br><div style="line-height:120%;padding-bottom:6px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As filed with the Securities and Exchange Commission on October 21, 2015</font></div><div style="line-height:120%;padding-bottom:6px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Registration No. 333-</font></div><div style="line-height:120%;padding-top:8px;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">UNITED STATES</font></div><div style="line-height:120%;padding-top:8px;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font><font style="font-family:inherit;font-size:12pt;">&#32;</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Washington, D.C. 20549</font><font style="font-family:inherit;font-size:10pt;">&#32;</font></div><div style="line-height:120%;padding-bottom:6px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">_____________________________</font></div><div style="line-height:120%;padding-bottom:6px;text-align:center;font-size:18pt;"><font style="font-family:inherit;font-size:18pt;font-weight:bold;">FORM S-8</font><font style="font-family:inherit;font-size:18pt;">&#32;</font></div><div style="line-height:120%;padding-bottom:6px;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</font><font style="font-family:inherit;font-size:12pt;">&#32;</font></div><div style="line-height:120%;padding-bottom:6px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">_____________________________</font></div><div style="line-height:120%;text-align:center;font-size:18pt;"><font style="font-family:inherit;font-size:18pt;font-weight:bold;">RADISYS CORPORATION</font><font style="font-family:inherit;font-size:18pt;">&#32;</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Exact name of registrant as specified in its charter)</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:91.40625%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td width="47%"></td><td width="5%"></td><td width="48%"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Oregon</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">93-0945232</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(State or other jurisdiction of</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(I.R.S. Employer Identification No.)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">incorporation or organization)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr></table></div></div><div style="line-height:120%;padding-bottom:6px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">5435 NE Dawson Creek Drive</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Hillsboro, Oregon 97124</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Address of principal executive offices) </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">_____________________________</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Radisys Corporation Amended and Restated 2007 Stock Plan </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Full title of the plan) </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Jon Wilson</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Chief Financial Officer</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Radisys Corporation</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">5435 NE Dawson Creek Drive</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Hillsboro, Oregon 97124</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">(503)&#160;615-1685</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Name, address and telephone number, including area code, of agent for service) </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">With a copy to:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Amar Budarapu</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Baker &amp; McKenzie LLP</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">2300 Trammell Crow Center</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">2001 Ross Avenue, Suite&#160;2300</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Dallas, Texas 75201 </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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 &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221; and &#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange Act.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:93.75%;border-collapse:collapse;text-align:left;"><tr><td colspan="5"></td></tr><tr><td width="19%"></td><td width="4%"></td><td width="50%"></td><td width="23%"></td><td width="4%"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Large accelerated filer</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">[ ]</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Accelerated filer</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">[x]</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Non-accelerated filer</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">[ ]</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">(Do not check if a smaller reporting company)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Smaller reporting company</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">[ ]</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><br><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><hr style="page-break-after:always"><a name="sAEE18E384255BCF53049F73801BF8CEA"></a><br><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">CALCULATION OF REGISTRATION FEE</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="11"></td></tr><tr><td width="35%"></td><td width="16%"></td><td width="1%"></td><td width="16%"></td><td width="1%"></td><td width="1%"></td><td width="16%"></td><td width="1%"></td><td width="1%"></td><td width="11%"></td><td width="1%"></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #000000;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Title of Each Class of Securities to be Registered</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Amount to be Registered (1)</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Proposed Maximum Offering Price Per Share (2)</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Proposed Maximum Aggregate Offering Price</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-right:1px solid #000000;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Amount of Registration Fee</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #000000;border-top:1px solid #000000;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;Common Stock, no par value</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">2,350,000</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">2.81</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">6,603,500</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">664.97</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(1)  Shares of common stock of Radisys Corporation, no par value per share (the "Common Stock"), being registered hereby relate to the Radisys Corporation Amended and Restated 2007 Stock Plan. Pursuant to Rule 416 promulgated under the Securities Act of 1933, as amended, there are also being registered such additional shares of Common Stock which may be issuable pursuant to the anti-dilution provisions of the Radisys Corporation Amended and Restated 2007 Stock Plan.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(2)  Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(c) and (h) promulgated under the Securities Act of 1933, as amended.  The proposed maximum offering price per share is based upon the average of the high and low prices of Radisys Corporation Common Stock on October 16, 2015 as reported on the Nasdaq Global Select Market. </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><br><hr style="page-break-after:always"><a name="s3447E2B2A007DED80EF9F73802B93B84"></a><br><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EXPLANATORY STATEMENT</font><font style="font-family:inherit;font-size:10pt;">&#32;</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">This Registration Statement is filed pursuant to General Instruction E to Form S-8 by Radisys Corporation, an Oregon corporation, in order to register 2,350,000 shares of Common Stock, which shares are in addition to those previously registered on a Registration Statement on Form S-8 (File No. 333-142968) filed with the Securities and Exchange Commission (the &#8220;Commission&#8221;) on May 15, 2007, on a Registration Statement on Form S-8 (File No. 333-169044) filed with the Commission on August 25, 2010, on a Registration Statement on Form S-8 (File No. 333-175511) filed with the Commission on July 13, 2011, on a Registration Statement on Form S-8 (File No. 333-190171) filed with the Commission on July 26, 2013, on a Registration Statement on Form S-8 (File No. 333-191034) filed with the Commission on September 6, 2013, and on a Registration Statement on Form S-8 (File No. 333-201717) filed with the Commission on January 27, 2015 for issuance pursuant to the Radisys Corporation Amended and Restated 2007 Stock Plan. The contents of the Registration Statements on Form S-8 (File Nos. 333-142968, 333-169044, 333-175511, 333-190171, 333-191034 and 333-201717) previously filed with the Commission on May 15, 2007, August 25, 2010, July 13, 2011, July 26, 2013, September 6, 2013 and January 27, 2015 are incorporated herein by reference.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><br><hr style="page-break-after:always"><a name="sFD90F56AFF8B0CCA88FBF73802EB1F76"></a><br><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">PART II</font><font style="font-family:inherit;font-size:10pt;">&#32;</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><a name="s806F89FCAB49E6AD2B9FF73803136C3E"></a><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Item&#160;8. 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Tobkin</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Director</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">October&#160;21, 2015</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Vincent H. Tobkin</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr></table></div></div><br><hr style="page-break-after:always"><a name="s186A60F3410B1EDB4A62F73803950023"></a><br><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EXHIBIT INDEX</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.8046875%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td width="9%"></td><td width="2%"></td><td width="89%"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Exhibit Number</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">4.1</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Radisys Corporation Amended and Restated 2007 Stock Plan, as amended through September 22, 2014.  Incorporated by reference from Appendix B to the Company's Proxy Statement on Schedule 14A, filed on August 10, 2015 (SEC File No. 000-26844).</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">5.1*</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Opinion of Stoel Rives LLP.</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">23.1*</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Consent of KPMG LLP.</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">23.2*</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Consent of Stoel Rives LLP.  Incorporated by reference to Exhibit 5.1 to this Registration Statement.</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">24.1*</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Powers of Attorney (included in the signature page to this Registration Statement).</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">* Filed herewith.&#160; </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><br>	</body>
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S-8
As filed with the Securities and Exchange Commission on October 21, 2015
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_____________________________
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
_____________________________
RADISYS CORPORATION
(Exact name of registrant as specified in its charter)
Oregon
93-0945232
(State or other jurisdiction of
(I.R.S. Employer Identification No.)
incorporation or organization)
5435 NE Dawson Creek Drive
Hillsboro, Oregon 97124
(Address of principal executive offices)
_____________________________
Radisys Corporation Amended and Restated 2007 Stock Plan
(Full title of the plan)
Jon Wilson
Chief Financial Officer
Radisys Corporation
5435 NE Dawson Creek Drive
Hillsboro, Oregon 97124
(503) 615-1685
(Name, address and telephone number, including area code, of agent for service)
With a copy to:
Amar Budarapu
Baker & McKenzie LLP
2300 Trammell Crow Center
2001 Ross Avenue, Suite 2300
Dallas, Texas 75201
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.
Large accelerated filer
[ ]
Accelerated filer
[x]
Non-accelerated filer
[ ]
(Do not check if a smaller reporting company)
Smaller reporting company
[ ]
CALCULATION OF REGISTRATION FEE
Title of Each Class of Securities to be Registered
Amount to be Registered (1)
Proposed Maximum Offering Price Per Share (2)
Proposed Maximum Aggregate Offering Price
Amount of Registration Fee
Common Stock, no par value
2,350,000
$
2.81
$
6,603,500
$
664.97
(1)  Shares of common stock of Radisys Corporation, no par value per share (the "Common Stock"), being registered hereby relate to the Radisys Corporation Amended and Restated 2007 Stock Plan. Pursuant to Rule 416 promulgated under the Securities Act of 1933, as amended, there are also being registered such additional shares of Common Stock which may be issuable pursuant to the anti-dilution provisions of the Radisys Corporation Amended and Restated 2007 Stock Plan.
(2)  Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(c) and (h) promulgated under the Securities Act of 1933, as amended.  The proposed maximum offering price per share is based upon the average of the high and low prices of Radisys Corporation Common Stock on October 16, 2015 as reported on the Nasdaq Global Select Market.
EXPLANATORY STATEMENT
This Registration Statement is filed pursuant to General Instruction E to Form S-8 by Radisys Corporation, an Oregon corporation, in order to register 2,350,000 shares of Common Stock, which shares are in addition to those previously registered on a Registration Statement on Form S-8 (File No. 333-142968) filed with the Securities and Exchange Commission (the "Commission") on May 15, 2007, on a Registration Statement on Form S-8 (File No. 333-169044) filed with the Commission on August 25, 2010, on a Registration Statement on Form S-8 (File No. 333-175511) filed with the Commission on July 13, 2011, on a Registration Statement on Form S-8 (File No. 333-190171) filed with the Commission on July 26, 2013, on a Registration Statement on Form S-8 (File No. 333-191034) filed with the Commission on September 6, 2013, and on a Registration Statement on Form S-8 (File No. 333-201717) filed with the Commission on January 27, 2015 for issuance pursuant to the Radisys Corporation Amended and Restated 2007 Stock Plan. The contents of the Registration Statements on Form S-8 (File Nos. 333-142968, 333-169044, 333-175511, 333-190171, 333-191034 and 333-201717) previously filed with the Commission on May 15, 2007, August 25, 2010, July 13, 2011, July 26, 2013, September 6, 2013 and January 27, 2015 are incorporated herein by reference.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 8. Exhibits
Exhibit Number
4.1
Radisys Corporation Amended and Restated 2007 Stock Plan, as amended through September 22, 2014.  Incorporated by reference from Appendix B to the Company's Proxy Statement on Schedule 14A, filed on August 10, 2015 (SEC File No. 000-26844).
5.1*
Opinion of Stoel Rives LLP.
23.1*
Consent of KPMG LLP.
23.2*
Consent of Stoel Rives LLP.  Incorporated by reference to Exhibit 5.1 to this Registration Statement.
24.1*
Powers of Attorney (included in the signature page to this Registration Statement).
*  Filed herewith.
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Hillsboro, State of Oregon, on this 21st day of October, 2015.
RADISYS CORPORATION
By:
/s/ Jon Wilson
Jon Wilson
Chief Financial Officer
POWER OF ATTORNEY
We, the undersigned officers and directors of Radisys Corporation hereby severally and individually constitute and appoint Brian Bronson and Jon Wilson, and each of them, the true and lawful attorneys and agents of each of us to execute in the name, place and stead of each of us (individually and in any capacity stated below) any and all amendments to this Registration Statement on Form S-8, and all instruments necessary or advisable in connection therewith, and to file the same with the Securities and Exchange Commission, each of said attorneys and agents to have power to act with or without the other and to have full power and authority to do and perform in the name and on behalf of each of the undersigned every act whatsoever necessary or advisable to be done in the premises as fully and to all intents and purposes as any of the undersigned might or could do in person, and we hereby ratify and confirm our signatures as they may be signed by our said attorneys and agents and each of them to any and all such amendments and other instruments.
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the date indicated.
Name
Title
Date
/s/ Brian Bronson
President, Chief Executive Officer and Director
October 21, 2015
Brian Bronson
(Principal Executive Officer)
/s/ Jon Wilson
Chief Financial Officer
October 21, 2015
Jon Wilson
(Principal Financial Officer and Principal Accounting Officer)
/s/ C. Scott Gibson
Chairman of the Board and Director
October 21, 2015
C. Scott Gibson
/s/ Michael G. Hluchyj
Director
October 21, 2015
Michael G. Hluchyj
/s/ Ronald de Lange
Director
October 21, 2015
Ronald de Lange
/s/ Hubert de Pesquidoux
Director
October 21, 2015
Hubert de Pesquidoux
/s/ Niel Ransom
Director
October 21, 2015
Niel Ransom
/s/ Vincent H. Tobkin
Director
October 21, 2015
Vincent H. Tobkin
EXHIBIT INDEX
Exhibit Number
4.1
Radisys Corporation Amended and Restated 2007 Stock Plan, as amended through September 22, 2014.  Incorporated by reference from Appendix B to the Company's Proxy Statement on Schedule 14A, filed on August 10, 2015 (SEC File No. 000-26844).
5.1*
Opinion of Stoel Rives LLP.
23.1*
Consent of KPMG LLP.
23.2*
Consent of Stoel Rives LLP.  Incorporated by reference to Exhibit 5.1 to this Registration Statement.
24.1*
Powers of Attorney (included in the signature page to this Registration Statement).
* Filed herewith.