PSX's three largest insider shareholders as of March 23, 2026 are Greg C. Garland (Executive Chairman, 655.33K shares), Mark E Lashier (Chairman And Ceo, 110.53K shares), Paula Ann Johnson (Other, 102.49K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Glenn F Tilton | 74,437 | 0 | 20 Jan, 2026 | |
| Brian Mandell | Executive Vice President | 61,595 | 0 | 16 Mar, 2026 |
| Marna C Whittington | 54,799 | 0 | 20 Jan, 2026 | |
| Timothy D. Roberts | Executive Vice President | 48,365 | 0 | 20 May, 2024 |
| Vanessa Allen Sutherland | Evp, Gc And Secretary | 31,623 | 0 | 11 Feb, 2026 |
| Denise L Ramos | 22,835 | 0 | 17 Jan, 2025 | |
| Kevin Omar Meyers | 16,624 | 0 | 17 Mar, 2026 | |
| Douglas T Terreson | 10,985 | 0 | 20 Jan, 2026 | |
| Denise R Singleton | 10,985 | 0 | 20 Jan, 2026 | |
| Lisa Ann Davis | 8,701 | 0 | 16 Mar, 2026 | |
| Joseph Scott Pruitt | Vice President And Controller | 6,583 | 0 | 20 Mar, 2024 |
| Grace Puma Whiteford | 3,456 | 0 | 20 Jan, 2026 | |
| Howard I Ungerleider | 949 | 0 | 17 Mar, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 16 Mar, 2026 | Howard I Ungerleider | Common Stock | A | 949 | $172.84 | 949 | D | A |
| 16 Mar, 2026 | Kevin Omar Meyers | Common Stock | A | 949 | $172.84 | 16,449 | D | A |
| 17 Mar, 2026 | Kevin Omar Meyers | Common Stock | A | 175 | $173.20 | 16,624 | D | P |
| 13 Mar, 2026 | Lisa Ann Davis | Common Stock | D | 3,800 | $174.37 | 8,701 | D | S |
| 12 Mar, 2026 | Brian Mandell | Common Stock | A | 42,800 | $89.57 | 104,395 | D | M |
| 12 Mar, 2026 | Brian Mandell | Common Stock | D | 42,800 | $169.53 | 61,595 | D | S |
| 12 Mar, 2026 | Brian Mandell | Employee Stock Option (Right to Buy) | D | 42,800 | $0.00 | 0 | D | M |
| 10 Feb, 2026 | Brian Mandell | Common Stock | A | 7,244 | $156.70 | 61,595 | D | A |
| 10 Feb, 2026 | Vanessa Allen Sutherland | Common Stock | A | 7,478 | $156.70 | 31,623 | D | A |
| 07 Feb, 2026 | Brian Mandell | Common Stock | D | 2,188 | $156.93 | 54,351 | D | F |
| 07 Feb, 2026 | Vanessa Allen Sutherland | Common Stock | D | 1,654 | $156.93 | 24,145 | D | F |
| 04 Feb, 2026 | Vanessa Allen Sutherland | Common Stock | D | 4,394 | $150.00 | 25,799 | D | S |
| 15 Jan, 2026 | Lisa Ann Davis | Common Stock | A | 1,423 | $140.56 | 12,490 | D | A |
| 15 Jan, 2026 | Marna C Whittington | Common Stock | A | 1,423 | $140.56 | 54,799 | D | A |
| 15 Jan, 2026 | Grace Puma Whiteford | Common Stock | A | 1,423 | $140.56 | 3,456 | D | A |
| 15 Jan, 2026 | Glenn F Tilton | Common Stock | A | 1,423 | $140.56 | 74,437 | D | A |
| 15 Jan, 2026 | Douglas T Terreson | Common Stock | A | 1,423 | $140.56 | 10,985 | D | A |
| 15 Jan, 2026 | Denise R Singleton | Common Stock | A | 1,423 | $140.56 | 10,985 | D | A |
| 09 Jan, 2026 | Vanessa Allen Sutherland | Common Stock | D | 4,394 | $145.00 | 30,193 | D | S |
| 10 Dec, 2025 | Brian Mandell | Common Stock | D | 299 | $141.37 | 56,539 | D | F |