X0306 4/A 2016-08-02 2016-08-04 0000825411 SEVCON, INC. SEV 0001535780 Morris Ryan J. C/O SEVCON, INC. 155 NORTHBORO ROAD SOUTHBOROUGH MA 01772 1 1 0 0 Executive Chairman Stock Option (Right to Buy) 10.93 2016-08-02 4 A 0 36496 0 A 2020-08-31 Common Stock 36496 36496 D Stock Option (Right to Buy) 12.35 2016-08-02 4 A 0 20204 0 A 2021-08-31 Common Stock 20204 20204 D The option shall become exercisable in 12 substantially equal installments on the first day of each calendar month beginning September 2016. The option shall become exercisable in 12 substantially equal installments on the first day of each calendar month beginning September 2017. The reporting person previously reported grants of stock options to purchase an aggregate of 213,844 shares of common stock under the registrant's 1996 Equity Incentive Plan. The registrant has determined that 157,144 of those options were not validly granted because they exceeded the Plan's limit on the aggregate number of shares subject to awards that may be granted to an individual participant in any calendar year. The reporting person is filing this amendment to report the correct number of stock options granted. /s/ Ryan Morris 2016-11-02