As of March 23, 2026, the three largest insider holders of MP are James H. Litinsky (Chairman And Ceo, 12.81Mn shares), Financial Lp Qvt (Director, 5.54Mn shares), Daniel Allen Gold (Director, 5.54Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| James H. Litinsky | Chairman And Ceo | 0 | 12,805,965 | 09 Jan, 2026 |
| Daniel Allen Gold | 0 | 5,542,000 | 15 Dec, 2022 | |
| Financial Lp Qvt | 0 | 5,542,000 | 15 Dec, 2022 | |
| Michael Stuart Rosenthal | Chief Operating Officer | 1,316,673 | 0 | 14 Jan, 2026 |
| James H. Litinsky | Chairman And Ceo | 216,397 | 0 | 13 Jan, 2026 |
| Ryan Corbett | Chief Financial Officer | 175,017 | 0 | 14 Jan, 2026 |
| Randall J Weisenburger | 146,901 | 0 | 17 Jun, 2022 | |
| Ryan Corbett | Chief Financial Officer | 129,017 | 0 | 17 Mar, 2026 |
| Michael Stuart Rosenthal | Chief Operating Officer | 0 | 126,622 | 31 May, 2023 |
| Elliot Dean Hoops | General Counsel And Secretary | 74,967 | 0 | 22 Jan, 2026 |
| Elliot Dean Hoops | General Counsel And Secretary | 61,053 | 0 | 17 Mar, 2026 |
| David Gregory Infuso | Chief Accounting Officer | 49,246 | 0 | 22 Jan, 2026 |
| Richard B Myers | 3,794 | 0 | 03 Jan, 2023 |
* 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 | Elliot Dean Hoops | Common Stock | D | 13,914 | $60.01 | 61,053 | D | S |
| 17 Mar, 2026 | Ryan Corbett | Common Stock | D | 46,000 | $60.00 | 129,017 | D | S |
| 20 Jan, 2026 | Elliot Dean Hoops | Common Stock | D | 7,823 | $68.21 | 74,967 | D | S |
| 20 Jan, 2026 | Elliot Dean Hoops | Common Stock | D | 7,823 | $68.21 | 74,967 | D | S |
| 22 Jan, 2026 | David Gregory Infuso | Common Stock | D | 1,198 | $68.37 | 49,246 | D | F |
| 12 Jan, 2026 | Elliot Dean Hoops | Common Stock | A | 8,722 | $0.00 | 78,471 | D | A |
| 12 Jan, 2026 | Michael Stuart Rosenthal | Common Stock | A | 18,318 | $0.00 | 1,302,727 | D | A |
| 12 Jan, 2026 | Ryan Corbett | Common Stock | A | 16,573 | $0.00 | 173,239 | D | A |
| 12 Jan, 2026 | David Gregory Infuso | Common Stock | A | 3,894 | $0.00 | 51,988 | D | A |
| 12 Jan, 2026 | Ryan Corbett | Common Stock | A | 16,573 | $0.00 | 173,239 | D | A |
| 12 Jan, 2026 | Elliot Dean Hoops | Common Stock | A | 8,722 | $0.00 | 78,471 | D | A |
| 12 Jan, 2026 | Elliot Dean Hoops | Common Stock | A | 22,942 | $0.00 | 101,413 | D | A |
| 12 Jan, 2026 | Michael Stuart Rosenthal | Common Stock | A | 33,648 | $0.00 | 1,336,375 | D | A |
| 12 Jan, 2026 | David Gregory Infuso | Common Stock | A | 1,301 | $0.00 | 53,289 | D | A |
| 12 Jan, 2026 | Ryan Corbett | Common Stock | A | 30,590 | $0.00 | 203,829 | D | A |
| 12 Jan, 2026 | Ryan Corbett | Common Stock | A | 30,590 | $0.00 | 203,829 | D | A |
| 12 Jan, 2026 | Elliot Dean Hoops | Common Stock | A | 22,942 | $0.00 | 101,413 | D | A |
| 12 Jan, 2026 | Elliot Dean Hoops | Common Stock | D | 9,028 | $65.34 | 92,385 | D | F |
| 12 Jan, 2026 | David Gregory Infuso | Common Stock | D | 581 | $65.34 | 52,708 | D | F |
| 12 Jan, 2026 | Ryan Corbett | Common Stock | D | 12,038 | $65.34 | 191,791 | D | F |