As of March 23, 2026, the three largest insider holders of MRVI are Investment Xi Llc Gtcr (Director, 20.15Mn shares), William E. Iii Martin (Chief Executive Officer, 1.81Mn shares), Kevin Herde (Chief Financial Officer, 674.64K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William E. Iii Martin | Chief Executive Officer | 1,814,643 | 0 | 19 Mar, 2025 |
| Christine Dolan | See Remarks | 420,312 | 0 | 17 Mar, 2026 |
| Kurt Oreshack | General Counsel | 384,991 | 0 | 17 Mar, 2026 |
| Murali Prahalad | 154,607 | 0 | 18 Jun, 2025 | |
| Luke Joseph Marker | 138,055 | 0 | 18 Jun, 2025 | |
| Constantine S Mihas | 138,055 | 0 | 18 Jun, 2025 | |
| Brian Neel | See Remarks | 16,473 | 0 | 17 Feb, 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 | Kurt Oreshack | Class A Common Stock | D | 39,976 | $3.08 | 384,991 | D | F |
| 16 Mar, 2026 | Christine Dolan | Class A Common Stock | D | 28,661 | $3.08 | 420,312 | D | F |
| 15 Jan, 2026 | Kurt Oreshack | Class A Common Stock | D | 31,902 | $3.69 | 424,967 | D | F |
| 15 Jan, 2026 | Christine Dolan | Class A Common Stock | D | 28,934 | $3.69 | 448,973 | D | F |
| 14 Nov, 2025 | Christine Dolan | Class A Common Stock | A | 4,300 | $1.79 | 477,907 | D | A |
| 16 Jun, 2025 | Constantine S Mihas | Class A Common Stock | A | 89,139 | $2.16 | 138,055 | D | A |
| 16 Jun, 2025 | Murali Prahalad | Class A Common Stock | A | 89,139 | $2.16 | 154,607 | D | A |
| 16 Jun, 2025 | Luke Joseph Marker | Class A Common Stock | A | 89,139 | $2.16 | 138,055 | D | A |
| 15 May, 2025 | Christine Dolan | Class A Common Stock | A | 2,381 | $1.67 | 473,607 | D | A |
| 17 Mar, 2025 | Kurt Oreshack | Class A Common Stock | D | 4,579 | $2.64 | 161,011 | D | F |
| 17 Mar, 2025 | Kurt Oreshack | Class A Common Stock | A | 295,858 | - | 456,869 | D | A |
| 17 Mar, 2025 | William E. Iii Martin | Class A Common Stock | A | 986,194 | - | 1,814,643 | D | A |
| 17 Mar, 2025 | Christine Dolan | Class A Common Stock | D | 5,336 | $2.64 | 224,677 | D | F |
| 17 Mar, 2025 | Christine Dolan | Class A Common Stock | A | 246,549 | - | 471,226 | D | A |
| 18 Feb, 2025 | Kurt Oreshack | Class A Common Stock | D | 2,028 | $4.10 | 165,590 | D | F |
| 18 Feb, 2025 | Christine Dolan | Class A Common Stock | D | 1,621 | $4.10 | 230,013 | D | F |
| 31 Jan, 2025 | Kurt Oreshack | Class A Common Stock | D | 25,000 | $5.03 | 167,618 | D | S |
| 15 Jan, 2025 | William E. Iii Martin | Class A Common Stock | D | 160,981 | $4.56 | 828,449 | D | F |
| 15 Jan, 2025 | Kurt Oreshack | Class A Common Stock | D | 31,438 | $4.56 | 192,618 | D | F |
| 15 Jan, 2025 | Christine Dolan | Class A Common Stock | D | 28,704 | $4.56 | 231,634 | D | F |