As of March 23, 2026, the three largest insider holders of ARDT are Martin Bonick (President And Ceo, 1.13Mn shares), Stephen C. Petrovich (Evp, Gc And Asst. Secretary, 718.30K shares), Alfred Lumsdaine (Chief Financial Officer, 211.15K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Martin Bonick | President And Ceo | 1,322,300 | 0 | 13 Mar, 2026 |
| Stephen C. Petrovich | Evp, Gc And Secretary | 753,036 | 0 | 13 Mar, 2026 |
| Alfred Lumsdaine | Chief Financial Officer | 272,228 | 0 | 13 Mar, 2026 |
| David Raynor Byers | Svp Chief Accounting Officer | 120,650 | 0 | 13 Mar, 2026 |
| Ellen Havdala | 101,136 | 0 | 25 Mar, 2025 | |
| Peter C B Bynoe | 101,136 | 0 | 25 Mar, 2025 | |
| William M Goodyear | 101,136 | 0 | 25 Mar, 2025 | |
| Ethan Chernin | President Of Health Services | 68,396 | 0 | 13 Mar, 2026 |
| David Schultz | President Hospital Operations | 64,172 | 0 | 02 Apr, 2025 |
| Robert Thomas Webb | 63,984 | 0 | 25 Mar, 2025 | |
| Edmondo Robinson | 43,984 | 0 | 25 Mar, 2025 | |
| Suzanne Campion | 43,984 | 0 | 25 Mar, 2025 | |
| Dave Caspers | Chief Operating Officer | 38,288 | 0 | 02 Apr, 2025 |
| Mark R Sotir | 24,478 | 0 | 25 Mar, 2025 | |
| Rahul Sen | 24,478 | 0 | 25 Mar, 2025 | |
| Robert Demichiei | 10,073 | 0 | 04 Apr, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 11 Mar, 2026 | Stephen C. Petrovich | Common Stock | A | 34,733 | $0.00 | 753,036 | D | A |
| 11 Mar, 2026 | David Raynor Byers | Common Stock | A | 8,859 | $0.00 | 120,650 | D | A |
| 11 Mar, 2026 | Ethan Chernin | Common Stock | A | 32,408 | $0.00 | 68,396 | D | A |
| 11 Mar, 2026 | Martin Bonick | Common Stock | A | 195,316 | $0.00 | 1,322,300 | D | A |
| 11 Mar, 2026 | Alfred Lumsdaine | Common Stock | A | 61,081 | $0.00 | 272,228 | D | A |
| 25 Sep, 2025 | David Raynor Byers | Common Stock | D | 524 | $13.19 | 111,791 | D | F |
| 25 Sep, 2025 | Alfred Lumsdaine | Common Stock | D | 3,389 | $13.19 | 211,147 | D | F |
| 25 Sep, 2025 | Stephen C. Petrovich | Common Stock | D | 788 | $13.19 | 718,303 | D | F |
| 02 Apr, 2025 | Robert Demichiei | Common Stock | A | 10,073 | $0.00 | 10,073 | D | A |
| 31 Mar, 2025 | David Raynor Byers | Common Stock | D | 676 | $13.75 | 100,750 | D | F |
| 31 Mar, 2025 | Alfred Lumsdaine | Common Stock | D | 2,510 | $13.75 | 160,565 | D | F |
| 31 Mar, 2025 | Martin Bonick | Common Stock | D | 12,970 | $13.75 | 992,057 | D | F |
| 31 Mar, 2025 | Ethan Chernin | Common Stock | D | 1,332 | $13.75 | 15,074 | D | F |
| 31 Mar, 2025 | Stephen C. Petrovich | Common Stock | D | 1,428 | $13.75 | 696,828 | D | F |
| 31 Mar, 2025 | David Schultz | Common Stock | D | 1,825 | $13.75 | 37,187 | D | F |
| 01 Apr, 2025 | Dave Caspers | Common Stock | A | 7,711 | $0.00 | 7,711 | D | A |
| 01 Apr, 2025 | Ethan Chernin | Common Stock | A | 20,914 | $0.00 | 35,988 | D | A |
| 01 Apr, 2025 | David Schultz | Common Stock | A | 26,985 | $0.00 | 64,172 | D | A |
| 01 Apr, 2025 | Stephen C. Petrovich | Common Stock | A | 22,263 | $0.00 | 719,091 | D | A |
| 01 Apr, 2025 | Martin Bonick | Common Stock | A | 134,927 | $0.00 | 1,126,984 | D | A |