X0306 4 2022-01-03 0 0000080035 PREFORMED LINE PRODUCTS CO PLPC 0001427494 Kestner R. Steven 3200 NATIONAL CITY CENTER CLEVELAND OH 44114 1 0 0 0 Common shares, $2 par value 2022-01-03 4 A 0 174 64.70 A 174 I by rabbi trust for Deferred Compensation Plan Common shares, $2 par value 7638 D Represents Company common shares held by a Rabbi Trust pursuant to the Reporting Person's election to defer 2021 directors' fees under the Company's Directors Deferred Compensation Plan (the "Plan"). Deferred amounts under the Plan shall be paid to the Reporting Person in a distribution of Company common shares. Represents a change in nature of ownership of 653 shares which were previously held in a Rabbi Trust pursuant to the Reporting Person's election to defer 2021 directors' fees under the Plan. On January 3, 2022, 653 common shares were transferred from the Rabbi Trust to the Reporting Person. /s/Caroline S. Vaccariello, by power of attorney 2022-01-05