| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Olenik John J | VP-Research & Engineering | 660 BETA DRIVE, CLEVELAND | /s/ Caroline S. Vaccariello, by power of attorney | 13 Mar 2026 | 0001799197 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PLPC | Common shares, $2 par value | Disposed to Issuer | -752 | -100% | $260.84* | 0 | 12 Mar 2026 | by 401(k) plan | F1 | |
| holding | PLPC | Common shares, $2 par value | 7,506 | 12 Mar 2026 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | PLPC | Restricted stock units | 730 | 12 Mar 2026 | Common shares, $2 par value | 730 | $0.000000 | Direct | F2 | |||||
| holding | PLPC | Restricted stock units | 783 | 12 Mar 2026 | Common shares, $2 par value | 783 | $0.000000 | Direct | F2 | |||||
| holding | PLPC | Restricted stock units | 441 | 12 Mar 2026 | Common shares, $2 par value | 441 | $0.000000 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | The reporting person's actual proportionate interest in the unitized stock fund, Preformed Line Stock fund, equals to 836 Common shares of the Issuer due to the difference between the net asset value per share and the closing stock price of the Common shares on March 12, 2026, as well as the rebalance of the cash position held within the Preformed Line Stock fund. |
| F2 | Restricted stock units vest 3 years from the date of grant. |