X0306 4 2018-02-06 0 0000080035 PREFORMED LINE PRODUCTS CO PLPC 0001160545 RUHLMAN ROBERT G 1900 EAST NINTH ST. CLEVELAND OH 44114 1 1 1 0 President - CEO Common shares, $2 par value 2018-02-06 4 M 0 10255 0.00 A 10255 D Common shares, $2 par value 2018-02-06 4 F 0 3090 80.20 D 7165 D Common shares, $2 par value 34656 I by trust Common shares, $2 par value 300 I by spouse Common shares, $2 par value 6274 I by 401(k) plan Common shares, $2 par value 11250 I by trust Common shares, $2 par value 156648 I by rabbi trust for Deferred Compensation Plan Common shares, $2 par value 144911 I by trust Common shares, $2 par value 350 I by Roth IRA Common shares, $2 par value 787900 I by trust Restricted stock units converted into common stock on a one-for-one basis, based on the achievement of performance goals. Shares are held in trust for the benefit of Reporting Person and his children, and of which he serves as co-trustee. Shares represent a 50% beneficiary interest in the Barbara P. Ruhlman Irrevocable Trust dated 7/29/08, of which the Reporting Person is also a co-Trust Advisor. Shares are held in a trust of which the Reporting Person is the trustee. Bernard Karr serves as trustee and Randall M. Ruhlman and the Reporting Person act as co-Trust Advisors with respect to the investment and voting of such shares. The reporting person disclaims beneficial ownership of the stock held by the Trust except to the extent of his pecuniary interest therein. /s/ Michael A. Weisbarth, by power of attorney 2018-02-08