X0609 4 2026-06-09 0 0000080035 PREFORMED LINE PRODUCTS CO PLPC 0001650279 Ruhlman Jon Ryan false 660 BETA DRIVE CLEVELAND OH 44143 1 1 0 0 President 0 Common Shares, $2 par value per share 2026-06-09 2026-06-09 4 G 0 18000 0 A 18000 I by Trust Common shares, $2 par value 2784 D Common shares, $2 par value 79 I by 401(k) plan Common shares, $2 par value 650 I by Roth IRA Common shares, $2 par value 4379 I by rabbi trust for deferred compensation plan Restricted stock units 0 Common shares, $2 par value 1386 1386 D Restricted stock units 0 Common shares, $2 par value 1380 1380 D On June 9, 2026, the reported shares were transferred as a bona fide gift from Robert Ruhlman to the Jon Ryan Ruhlman 2025 Generation-Skipping Trust for the benefit of the reporting person and his descendants. Jon Ryan Ruhlman serves as Trustee of such trust. Restricted stock units vest 3 years from the date of grant. /s/ Caroline S. Vaccariello, by power of attorney 2026-08-04