As of April 17, 2026, Medicinova's top three insider holders are Yuichi Iwaki (President And Ceo, 966.93K shares), Kazuko Matsuda (Chief Medical Officer, 323.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Yuichi Iwaki | President And Ceo | 966,933 | 0 | 23 Jul, 2021 |
| Kazuko Matsuda | Chief Medical Officer | 322,996 | 0 | 25 Aug, 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 |
|---|---|---|---|---|---|---|---|---|
| 16 Jan, 2026 | Kazuko Matsuda | Employee Stock Option (Right to Buy) | A | 350,000 | $0.00 | 350,000 | D | A |
| 16 Jan, 2026 | Yuichi Iwaki | Employee Stock Option (Right to Buy) | A | 450,000 | $0.00 | 450,000 | D | A |
| 17 Jun, 2025 | Hideki Nagao | Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 17 Jun, 2025 | Carolyn Beaver | Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 17 Jun, 2025 | Nicole Lemerond | Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 12 Feb, 2025 | Hideki Nagao | Stock Option (Right to Buy) | A | 24,500 | $0.00 | 24,500 | D | A |
| 12 Feb, 2025 | Carolyn Beaver | Stock Option (Right to Buy) | A | 24,500 | $0.00 | 24,500 | D | A |
| 12 Feb, 2025 | Kazuko Matsuda | Employee Stock Option (Right to Buy) | A | 100,000 | $0.00 | 100,000 | D | A |
| 12 Feb, 2025 | Nicole Lemerond | Stock Option (Right to Buy) | A | 24,500 | $0.00 | 24,500 | D | A |
| 12 Feb, 2025 | Yuichi Iwaki | Employee Stock Option (Right to Buy) | A | 100,000 | $0.00 | 100,000 | D | A |
| 07 Jan, 2025 | Kazuko Matsuda | Employee Stock Option (Right to Buy) | A | 300,000 | $0.00 | 300,000 | D | A |
| 07 Jan, 2025 | Yuichi Iwaki | Employee Stock Option (Right to Buy) | A | 400,000 | $0.00 | 400,000 | D | A |
| 11 Jun, 2024 | Nicole Lemerond | Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 11 Jun, 2024 | Hideki Nagao | Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 11 Jun, 2024 | Carolyn Beaver | Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 09 Jan, 2024 | Geoffrey Obrien | Employee Stock Option (Right to Buy) | A | 84,000 | $0.00 | 84,000 | D | A |
| 09 Jan, 2024 | Kazuko Matsuda | Employee Stock Option (Right to Buy) | A | 157,500 | $0.00 | 157,500 | D | A |
| 09 Jan, 2024 | Yuichi Iwaki | Employee Stock Option (Right to Buy) | A | 210,000 | $0.00 | 210,000 | D | A |
| 04 Aug, 2023 | Nicole Lemerond | Stock Option (Right to Buy) | A | 18,333 | $0.00 | 18,333 | D | A |
| 13 Jun, 2023 | Carolyn Beaver | Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | D | A |