As of April 22, 2026, the three largest insider holders of CLNN are John Henry Stevens (Director, 800.20K shares), John Henry Stevens (Director, 800.20K shares), Resonance Llc General (TenPercentOwner, 704.59K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| John Henry Stevens | - | 800,204 | 0 | 27 Jun, 2023 |
| John Henry Stevens | - | 800,204 | 0 | 27 Jun, 2023 |
| John Henry Stevens | - | 800,204 | 0 | 27 Jun, 2023 |
| Resonance Llc General | - | 704,591 | 0 | 21 Aug, 2025 |
| Resonance Llc General | - | 704,591 | 0 | 21 Aug, 2025 |
| Resonance Llc General | - | 704,591 | 0 | 21 Aug, 2025 |
| Reed N Wilcox | - | 575,145 | 0 | 14 Nov, 2022 |
| Reed N Wilcox | - | 575,145 | 0 | 14 Nov, 2022 |
| Reed N Wilcox | - | 575,145 | 0 | 14 Nov, 2022 |
| David J Matlin | - | 477,824 | 0 | 13 Jan, 2026 |
| David J Matlin | - | 444,491 | 0 | 02 Oct, 2024 |
| Chidozie Ugwumba | - | 0 | 431,094 | 31 Mar, 2026 |
| Chidozie Ugwumba | - | 0 | 431,094 | 31 Mar, 2026 |
| Chidozie Ugwumba | - | 0 | 431,094 | 31 Mar, 2026 |
| Chidozie Ugwumba | - | 0 | 426,816 | 01 Apr, 2026 |
| Chidozie Ugwumba | - | 0 | 401,891 | 06 Apr, 2026 |
| Chidozie Ugwumba | - | 0 | 362,729 | 17 Apr, 2026 |
| Alison Mosca | - | 0 | 280,500 | 13 Jan, 2026 |
| Alison Mosca | - | 0 | 280,500 | 13 Jan, 2026 |
| Alison Mosca | - | 0 | 280,500 | 13 Jan, 2026 |
| David J Matlin | - | 0 | 150,000 | 08 Dec, 2021 |
| Jonathon Gay | - | 0 | 105,625 | 20 Jun, 2023 |
| Jonathon Gay | - | 0 | 105,625 | 20 Jun, 2023 |
| Jonathon Gay | - | 0 | 105,625 | 20 Jun, 2023 |
| Jonathon Gay | - | 68,745 | 0 | 17 May, 2022 |
| Jonathon Gay | - | 68,745 | 0 | 17 May, 2022 |
| Jonathon Gay | - | 68,745 | 0 | 17 May, 2022 |
| Robert Dee Etherington | Chief Executive Officer | 40,149 | 0 | 01 Oct, 2024 |
| Robert Dee Etherington | Chief Executive Officer | 40,149 | 0 | 01 Oct, 2024 |
| Robert Dee Etherington | Chief Executive Officer | 40,149 | 0 | 01 Oct, 2024 |
| Alison Mosca | - | 39,476 | 0 | 16 Jun, 2022 |
| Alison Mosca | - | 39,476 | 0 | 16 Jun, 2022 |
| Alison Mosca | - | 39,476 | 0 | 16 Jun, 2022 |
| Mark Mortenson | Chief Science Officer | 28,949 | 0 | 01 Oct, 2024 |
| Mark Mortenson | Chief Science Officer | 28,949 | 0 | 01 Oct, 2024 |
| Mark Mortenson | Chief Science Officer | 28,949 | 0 | 01 Oct, 2024 |
| Robert Dee Etherington | Chief Executive Officer | 0 | 25,000 | 27 Jun, 2023 |
| Robert Dee Etherington | Chief Executive Officer | 0 | 25,000 | 27 Jun, 2023 |
| Robert Dee Etherington | Chief Executive Officer | 0 | 25,000 | 27 Jun, 2023 |
| Shalom Jacobovitz | - | 20,838 | 0 | 15 Jul, 2021 |
| Shalom Jacobovitz | - | 20,838 | 0 | 15 Jul, 2021 |
| Shalom Jacobovitz | - | 20,838 | 0 | 15 Jul, 2021 |
| Robert Glanzman | Chief Medical Officer | 10,564 | 0 | 18 May, 2022 |
| Robert Glanzman | Chief Medical Officer | 10,564 | 0 | 18 May, 2022 |
| Robert Glanzman | Chief Medical Officer | 10,564 | 0 | 18 May, 2022 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 15 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 6,374 | $6.48 | 395,517 | I | S |
| 16 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 7,748 | $6.40 | 387,769 | I | S |
| 17 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 25,040 | $6.43 | 362,729 | I | S |
| 02 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 24,925 | $4.81 | 401,891 | I | S |
| 02 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 24,925 | $4.81 | 401,891 | I | S |
| 01 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 4,278 | $4.97 | 426,816 | I | S |
| 01 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 4,278 | $4.97 | 426,816 | I | S |
| 01 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 4,278 | $4.97 | 426,816 | I | S |
| 27 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 17,470 | $4.75 | 514,621 | I | S |
| 27 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 17,470 | $4.75 | 514,621 | I | S |
| 27 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 17,470 | $4.75 | 514,621 | I | S |
| 30 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 15,536 | $5.10 | 499,085 | I | S |
| 30 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 15,536 | $5.10 | 499,085 | I | S |
| 30 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 15,536 | $5.10 | 499,085 | I | S |
| 31 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 67,991 | $4.88 | 431,094 | I | S |
| 31 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 67,991 | $4.88 | 431,094 | I | S |
| 31 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 67,991 | $4.88 | 431,094 | I | S |
| 24 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 5,492 | $5.78 | 544,508 | I | S |
| 24 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 5,492 | $5.78 | 544,508 | I | S |
| 24 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 5,492 | $5.78 | 544,508 | I | S |