TPL's three largest insider shareholders as of September 29, 2026 are Murray Stahl (Director, 93.22Mn shares), Murray Stahl (Director, 20.97Mn shares), Eric L Oliver (Director, 17.71Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Murray Stahl | Director | 370,710 | 92,849,985 | 93,220,695 | 81.3% | 27 Jun, 2025 |
| 2 | Eric L Oliver | Director | 0 | 17,712,000 | 17,712,000 | 15.5% | 22 Aug, 2025 |
| 3 | Kinetics Asset Management Llc Horizon | TenPercentOwner | 3,390,854 | 0 | 3,390,854 | 3.0% | 25 Sep, 2026 |
| 4 | Peter Doyle | Director | 146,941 | 0 | 146,941 | 0.1% | 17 Sep, 2026 |
| 5 | Tyler Glover | President Ceo | 44,171 | 0 | 44,171 | 0.0% | 18 Feb, 2026 |
| 6 | John R Iii Norris | Director | 17,085 | 0 | 17,085 | 0.0% | 03 Jan, 2023 |
| 7 | Dana F. Mcginnis | Director | 16,275 | 0 | 16,275 | 0.0% | 07 Mar, 2022 |
| 8 | Chris Steddum | Chief Financial Officer | 12,040 | 0 | 12,040 | 0.0% | 09 Jun, 2026 |
| 9 | Micheal W. Dobbs | Senior Vp, Secretary And Gc | 7,845 | 0 | 7,845 | 0.0% | 18 Feb, 2026 |
| 10 | David E. Barry | Director | 6,630 | 0 | 6,630 | 0.0% | 03 Jan, 2023 |
| 11 | Rhys J Best | Director | 3,299 | 0 | 3,299 | 0.0% | 07 Jan, 2026 |
| 12 | Donald G Cook | Director | 3,086 | 0 | 3,086 | 0.0% | 07 Jan, 2026 |
| 13 | Donna E Epps | Director | 2,921 | 0 | 2,921 | 0.0% | 27 Feb, 2026 |
| 14 | Barbara J Duganier | Director | 2,921 | 0 | 2,921 | 0.0% | 07 Jan, 2026 |
| 15 | Karl F Kurz | Director | 2,624 | 0 | 2,624 | 0.0% | 07 Jan, 2026 |
| 16 | Stephanie Buffington | Chief Accounting Officer | 2,133 | 0 | 2,133 | 0.0% | 25 Feb, 2026 |
| 17 | Robert M. Roosa | Director | 1,769 | 0 | 1,769 | 0.0% | 07 Jan, 2026 |
| 18 | Marguerite Woung-Chapman | Director | 1,769 | 0 | 1,769 | 0.0% | 07 Jan, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 24 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $340.28 | $340 | 3,390,854 | Direct |
| 23 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $352.95 | $353 | 3,390,853 | Direct |
| 22 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $361.36 | $361 | 3,390,852 | Direct |
| 21 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $348.98 | $349 | 3,390,851 | Direct |
| 18 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $351.34 | $351 | 3,390,850 | Direct |
| 17 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $349.35 | $349 | 3,390,849 | Direct |
| 15 Sep, 2026 | Peter Doyle | Director | Acquired P | 5 | $371.64 | $1.86K | 146,941 | Direct |
| 16 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $352.36 | $352 | 3,390,848 | Direct |
| 10 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $366.18 | $366 | 3,390,844 | Direct |
| 09 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $378.57 | $379 | 3,390,843 | Direct |
| 08 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $375.10 | $375 | 3,390,842 | Direct |
| 04 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $360.03 | $360 | 3,390,841 | Direct |
| 03 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $367.61 | $368 | 3,390,840 | Direct |
| 02 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $363.20 | $363 | 3,242,744 | Direct |
| 01 Sep, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $369.10 | $369 | 3,242,743 | Direct |
| 31 Aug, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $369.47 | $369 | 3,244,021 | Direct |
| 28 Aug, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $364.42 | $364 | 3,244,020 | Direct |
| 27 Aug, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $365.74 | $366 | 3,244,019 | Direct |
| 26 Aug, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $375.00 | $375 | 3,244,018 | Direct |
| 25 Aug, 2026 | Kinetics Asset Management Llc Horizon | TenPercentOwner | Acquired P | 1 | $372.58 | $373 | 3,244,017 | Direct |