As of June 02, 2026, the three largest insider holders of CLNN are John Henry Stevens (Director, 800.20K shares), Resonance Llc General (TenPercentOwner, 704.59K shares), Reed N Wilcox (Director, 575.14K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| David J Matlin | - | 477,824 | 0 | 13 Jan, 2026 |
| Reed N Wilcox | - | 575,145 | 0 | 14 Nov, 2022 |
| Resonance Llc General | - | 704,591 | 0 | 21 Aug, 2025 |
| Robert Dee Etherington | Chief Executive Officer | 40,149 | 0 | 01 Oct, 2024 |
| Jonathon Gay | - | 0 | 105,625 | 20 Jun, 2023 |
| Mark Mortenson | Chief Science Officer | 28,949 | 0 | 01 Oct, 2024 |
| Robert Glanzman | Chief Medical Officer | 10,564 | 0 | 18 May, 2022 |
| Alison Mosca | - | 0 | 280,500 | 13 Jan, 2026 |
| John Henry Stevens | - | 800,204 | 0 | 27 Jun, 2023 |
| Chidozie Ugwumba | - | 0 | 431,094 | 31 Mar, 2026 |
| Shalom Jacobovitz | - | 20,838 | 0 | 15 Jul, 2021 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 20 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 4,318 | $6.12 | 358,411 | I | S |
| 21 Apr, 2026 | Chidozie Ugwumba | Common Stock | D | 61,345 | $6.14 | 297,066 | I | S |
| 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 |
| 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 |
| 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 |
| 24 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 5,492 | $5.78 | 544,508 | I | S |
| 25 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 7,098 | $5.50 | 537,410 | I | S |
| 26 Mar, 2026 | Chidozie Ugwumba | Common Stock | D | 5,319 | $5.40 | 532,091 | I | S |
| 19 Feb, 2026 | Alison Mosca | stock option | A | 4,201 | $0.00 | 4,201 | D | A |
| 19 Feb, 2026 | Vallerie Mclaughlin | stock option | A | 3,030 | $0.00 | 3,030 | D | A |
| 19 Feb, 2026 | Jonathon Gay | stock option | A | 3,271 | $0.00 | 3,271 | D | A |
| 19 Feb, 2026 | Alison Mosca | stock option | A | 4,201 | $0.00 | 4,201 | D | A |
| 19 Feb, 2026 | Matthew Kiernan | stock option | A | 2,755 | $0.00 | 2,755 | D | A |
| 19 Feb, 2026 | Reed N Wilcox | stock option | A | 3,306 | $0.00 | 3,306 | D | A |
| 19 Feb, 2026 | Vallerie Mclaughlin | stock option | A | 3,030 | $0.00 | 3,030 | D | A |