GLP's three largest insider shareholders as of June 09, 2026 are Eric Slifka (Vice Chairman, President Ceo, 704.08K shares), Eric Slifka (Vice Chairman, President Ceo, 570.41K shares), Andrew P. Slifka (Executive Vice President, 529.09K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| John T Hailer | - | 13,314 | 0 | 07 Jan, 2026 |
| Eric Slifka | Vice Chairman, President Ceo | 0 | 704,079 | 09 Aug, 2021 |
| Robert J Mccool | - | 45,018 | 0 | 09 Jan, 2024 |
| Gp Llc Global | - | 90,926 | 0 | 04 Apr, 2025 |
| Andrew P. Slifka | Executive Vice President | 529,088 | 0 | 06 Aug, 2021 |
| Mark Romaine | Chief Operating Officer | 169,109 | 0 | 27 Feb, 2026 |
| Daphne H. Foster | Chief Financial Officer | 37,420 | 0 | 06 Aug, 2021 |
| Matthew Spencer | Chief Accounting Officer | 55,437 | 0 | 27 Feb, 2026 |
| Gregory B. Hanson | Chief Financial Officer | 87,085 | 0 | 27 Feb, 2026 |
| Jaime Pereira | - | 13,814 | 0 | 07 Jan, 2026 |
| Sean T. Geary | Chief Legal Officer Sec. | 48,333 | 0 | 06 May, 2025 |
| Clare Mcgrory Kelly | - | 8,813 | 0 | 07 Jan, 2026 |
| Kristin K. Seabrook | Chief Legal Officer Secy. | 1,753 | 0 | 15 Apr, 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 |
|---|---|---|---|---|---|---|---|---|
| 14 Apr, 2026 | Kristin K. Seabrook | Common units representing limited partner interests | A | 3,393 | $0.00 | 3,393 | D | M |
| 14 Apr, 2026 | Kristin K. Seabrook | Common units representing limited partner interests | A | 3,393 | $0.00 | 3,393 | D | M |
| 14 Apr, 2026 | Kristin K. Seabrook | Common units representing limited partner interests | D | 1,640 | $45.86 | 1,753 | D | F |
| 14 Apr, 2026 | Kristin K. Seabrook | Common units representing limited partner interests | D | 1,640 | $45.86 | 1,753 | D | F |
| 14 Apr, 2026 | Kristin K. Seabrook | Phantom Units | D | 3,393 | $0.00 | 6,785 | D | M |
| 14 Apr, 2026 | Kristin K. Seabrook | Phantom Units | D | 3,393 | $0.00 | 6,785 | D | M |
| 25 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 2,065 | $44.80 | 139,109 | D | S |
| 25 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 2,065 | $44.80 | 139,109 | D | S |
| 25 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 2,065 | $44.80 | 139,109 | D | S |
| 19 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 3,245 | $48.10 | 143,629 | D | S |
| 19 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 3,245 | $48.10 | 143,629 | D | S |
| 19 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 3,245 | $48.10 | 143,629 | D | S |
| 20 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 2,020 | $48.19 | 141,609 | D | S |
| 20 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 2,020 | $48.19 | 141,609 | D | S |
| 20 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 2,020 | $48.19 | 141,609 | D | S |
| 23 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 435 | $47.31 | 141,174 | D | S |
| 23 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 435 | $47.31 | 141,174 | D | S |
| 23 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 435 | $47.31 | 141,174 | D | S |
| 12 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 1,323 | $47.62 | 163,385 | D | S |
| 12 Mar, 2026 | Mark Romaine | Common Units representing limited partner interests | D | 1,323 | $47.62 | 163,385 | D | S |