X0306 4 2020-02-12 0001587523 Knowles Corp KN 0001449213 Polacek Michael S. C/O KNOWLES CORPORATION 1151 MAPLEWOOD DRIVE ITASCA IL 60143 1 President, Intelligent Audio Common Stock 2020-02-12 4 A 0 12508 17.35 A 116793 D Represents the settlement of performance share units (PSUs) that were previously granted under the Company's Equity Incentive Plan. The ultimate amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2017 through December 31, 2019. Robyn B. Martin, by POA 2020-02-14