As of May 23, 2026, the three largest insider holders of PLPC are Katherine E. Wensink (TenPercentOwner, 810.40K shares), Randall M Ruhlman (TenPercentOwner, 810.40K shares), Robert G Ruhlman (President Ceo, 810.40K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert G Ruhlman | President Ceo | 0 | 810,400 | 16 Sep, 2022 |
| Glen E Corlett | - | 5,611 | 0 | 16 Mar, 2026 |
| Michael E Gibbons | - | 0 | 14,608 | 02 Jul, 2025 |
| Randall M Ruhlman | - | 0 | 810,400 | 16 Sep, 2022 |
| William H Iii Haag | V.P. International Operations | 10,276 | 0 | 11 Aug, 2023 |
| C Sunkle David | Vp Research Engineering | 1,607 | 0 | 11 Mar, 2026 |
| Caroline Saylor Vaccariello | General Counselcorp Secretary | 1,908 | 0 | 11 Mar, 2026 |
| R. Steven Kestner | - | 6,406 | 0 | 17 Dec, 2025 |
| Richard R Gascoigne | - | 0 | 4,111 | 17 Dec, 2025 |
| John M Hofstetter | Executive Vice President | 3,446 | 0 | 11 Mar, 2026 |
| Jon Ryan Ruhlman | V.P. Marketing Bus. Develop. | 0 | 5,336 | 14 Feb, 2022 |
| Maegan Adams Ruhlman Cross | - | 5,972 | 0 | 17 Dec, 2025 |
| Matthew D Frymier | - | 0 | 2,255 | 17 Dec, 2025 |
| Timothy O'Shaughnessy | V.P. Human Resources | 4,000 | 0 | 11 Mar, 2026 |
| John J Olenik | Vp Research Engineering | 7,506 | 0 | 06 Feb, 2026 |
| Andrew S Klaus | Cfo | 14,553 | 0 | 11 Mar, 2026 |
| Katherine E. Wensink | - | 0 | 810,400 | 16 Sep, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 12 Mar, 2026 | Glen E Corlett | Common shares, $2 par value | D | 400 | $260.24 | 5,611 | D | D |
| 12 Mar, 2026 | John J Olenik | Common shares, $2 par value | D | 752 | $260.84 | 0 | I | D |
| 13 Mar, 2026 | Robert G Ruhlman | Common shares, $2 par value | D | 2,500 | $259.73 | 285,673 | D | D |
| 10 Mar, 2026 | Assaad A Morcos | Common Shares, $2 par value per share | A | 1,750 | $132.40 | 1,750 | D | M |
| 13 Mar, 2026 | Robert G Ruhlman | Common shares, $2 par value | D | 2,500 | $259.73 | 285,673 | D | D |
| 10 Mar, 2026 | Assaad A Morcos | Common Shares, $2 par value per share | D | 1,750 | $260.34 | 0 | D | D |
| 10 Mar, 2026 | Assaad A Morcos | Employee stock option (right to buy) | D | 1,750 | $132.40 | 4,750 | D | M |
| 10 Mar, 2026 | Jon Ryan Ruhlman | Common shares, $2 par value | D | 2,000 | $260.34 | 3,784 | D | D |
| 10 Mar, 2026 | Caroline Saylor Vaccariello | Common shares, $2 par value | D | 1,547 | $260.34 | 1,908 | D | D |
| 10 Mar, 2026 | Timothy O'Shaughnessy | Common shares, $2 par value | D | 1,244 | $260.34 | 4,000 | D | D |
| 10 Mar, 2026 | Jon Ryan Ruhlman | Common shares, $2 par value | D | 2,000 | $260.34 | 3,784 | D | D |
| 10 Mar, 2026 | John M Hofstetter | Common shares, $2 par value | D | 6,000 | $260.34 | 3,446 | D | D |
| 10 Mar, 2026 | C Sunkle David | Common shares, $2 par value | D | 1,600 | $260.34 | 1,607 | D | D |
| 10 Mar, 2026 | Caroline Saylor Vaccariello | Common shares, $2 par value | D | 1,547 | $260.34 | 1,908 | D | D |
| 10 Mar, 2026 | Dennis F Mckenna | Common shares, $2 par value | D | 7,887 | $260.34 | 0 | D | D |
| 10 Mar, 2026 | Andrew S Klaus | Common shares, $2 par value | D | 2,365 | $260.34 | 14,553 | D | D |
| 04 Feb, 2026 | William Koh | Restricted stock units | A | 407 | $0.00 | 407 | D | A |
| 04 Feb, 2026 | Caroline Saylor Vaccariello | Common shares, $2 par value | A | 1,517 | $0.00 | 4,733 | D | A |
| 04 Feb, 2026 | Dennis F Mckenna | Common shares, $2 par value | A | 2,677 | $0.00 | 10,110 | D | A |
| 04 Feb, 2026 | Jon Ryan Ruhlman | Common shares, $2 par value | A | 1,785 | $0.00 | 7,278 | D | A |