X0306 4 2012-11-29 0 0000864683 CYBERONICS INC CYBX 0001388872 ROSENTHAL ARTHUR L 100 CYBERONICS BLVD HOUSTON TX 77058 1 0 0 0 Common Stock 2012-11-29 4 S 0 5052 51.9166 D 10496 D Represents weighted average selling price. Securities were sold through approximately 43 separate sales on the transaction date at prices ranging from $51.5601 to $52.24. The reporting person hereby undertakes to provide upon request to the SEC, the issuer or any stockholder of the issuer, the full information regarding the number of shares and prices at which the transaction was effected. Arthur L. Rosenthal 2012-12-03