MEDICINOVA INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| Nagao Hideki | — | Sale | 6,754 | $2.25 | $15,197 | Nov 28, 2022 |
| Nagao Hideki | — | Sale | 218 | $2.13 | $464 | Nov 21, 2022 |
| Nagao Hideki | — | Sale | 309 | $2.18 | $674 | Nov 17, 2022 |
| Matsuda Kazuko | Chief Medical Officer | Option Exercise | 60,000 | $2.30 | $138,000 | Aug 23, 2021 |
| IWAKI YUICHI | President and CEO | Option Exercise | 39,583 | $2.54 | $100,541 | Jul 9, 2021 |
| Matsuda Kazuko | Chief Medical Officer | Option Exercise | 46,554 | $2.54 | $118,247 | Jun 24, 2021 |
| OBrien Geoffrey | Vice President | Option Exercise | 11,318 | $2.46 | $27,842 | May 19, 2021 |
| Nagao Hideki | — | Sale | 2,354 | $7.40 | $17,420 | Mar 11, 2021 |
| IWAKI YUICHI | President and CEO | Option Exercise | 86,250 | $2.46 | $212,175 | Feb 25, 2021 |
| Nagao Hideki | — | Sale | 1,000 | $5.78 | $5,780 | Sep 15, 2020 |
| Nagao Hideki | — | Option Exercise | 15,000 | $2.58 | $38,700 | Aug 6, 2020 |
| Matsuda Kazuko | Chief Medical Officer | Option Exercise | 20,000 | $5.13 | $102,600 | Jun 12, 2020 |
| Matsuda Kazuko | Chief Medical Officer | Option Exercise | 28,446 | $2.54 | $72,253 | Apr 8, 2020 |
| IWAKI YUICHI | President and CEO | Option Exercise | 60,417 | $2.54 | $153,459 | Apr 8, 2020 |
| Matsuda Kazuko | Chief Medical Officer | Purchase | 2,000 | $3.62 | $7,240 | Mar 13, 2020 |
| Matsuda Kazuko | Chief Medical Officer | Purchase | 2,000 | $3.62 | $7,240 | Mar 13, 2020 |
| IWAKI YUICHI | President and CEO | Purchase | 20,000 | $3.10 | $62,000 | Mar 12, 2020 |
| Matsuda Kazuko | Chief Medical Officer | Option Exercise | 37,000 | $4.80 | $177,600 | Jun 12, 2019 |
| Nagao Hideki | — | Option Exercise | 1,000 | $2.77 | $2,770 | May 13, 2019 |
| Okajima Masatsune | VP and Head of Japanese Office | Option Exercise | 42,500 | $4.10 | $174,250 | Feb 28, 2019 |
| Okajima Masatsune | VP and Head of Japanese Office | Option Exercise | 41,250 | $2.20 | $90,750 | Jan 9, 2019 |
| IWAKI YUICHI | President and CEO | Option Exercise | 18,572 | $2.20 | $40,858 | Jan 3, 2019 |
| IWAKI YUICHI | President and CEO | Option Exercise | 50,003 | $2.20 | $110,007 | Mar 5, 2018 |
| IWAKI YUICHI | President and CEO | Option Exercise | 53,363 | $4.42 | $235,864 | Jan 3, 2018 |
| Okajima Masatsune | VP and Head of Japanese Office | Option Exercise | 48,000 | $4.42 | $212,160 | Dec 12, 2017 |
| IWAKI YUICHI | President and CEO | Option Exercise | 21,067 | $4.42 | $93,116 | Nov 2, 2017 |
| Ishizaka Yoshio | — | Purchase | 5,000 | $5.17 | $25,850 | Aug 21, 2017 |
| Kobayashi Yutaka | — | Purchase | 1,000 | $5.60 | $5,600 | May 15, 2017 |
| Kobayashi Yutaka | — | Purchase | 24,000 | $5.62 | $134,880 | May 12, 2017 |
| Kobayashi Yutaka | — | Purchase | 11,800 | $6.44 | $75,992 | Sep 15, 2016 |
| Kobayashi Yutaka | — | Purchase | 10,000 | $6.67 | $66,700 | Sep 9, 2016 |
| OBrien Geoffrey | Vice President | Option Exercise | 3,300 | $4.80 | $15,840 | Jul 5, 2016 |
| Matsuda Kazuko | Chief Medical Officer | X | 800 | $3.56 | $2,848 | Mar 14, 2016 |
| Okajima Masatsune | VP and Head of Japanese Office | X | 8,400 | $3.56 | $29,904 | Mar 14, 2016 |
| Kobayashi Yutaka | — | Purchase | 12,000 | $3.54 | $42,480 | Dec 10, 2014 |
| Kobayashi Yutaka | — | Purchase | 10,000 | $3.07 | $30,700 | Nov 26, 2014 |
| Kobayashi Yutaka | — | Purchase | 13,000 | $3.19 | $41,470 | Nov 20, 2014 |
| Ishizaka Yoshio | — | Purchase | 5,000 | $2.86 | $14,300 | Nov 19, 2014 |
| Kobayashi Yutaka | — | Purchase | 10,000 | $2.95 | $29,500 | Sep 11, 2014 |
| Kobayashi Yutaka | — | Purchase | 100 | $2.66 | $266 | Sep 3, 2014 |
| Izumi Tatsuo | — | Sale | 970 | $2.17 | $2,105 | Dec 12, 2013 |
| Izumi Tatsuo | — | Purchase | 970 | $2.21 | $2,144 | Nov 18, 2013 |
| Morris Arlene | — | Sale | 8,800 | $3.28 | $28,864 | May 21, 2013 |
| Izumi Tatsuo | — | Purchase | 158,730 | $3.15 | $500,000 | May 13, 2013 |
| Izumi Tatsuo | — | Purchase | 5,200 | $1.81 | $9,412 | May 31, 2012 |
| O'Toole David D | — | Purchase | 5,000 | $1.78 | $8,900 | May 29, 2012 |
| Izumi Tatsuo | — | Purchase | 6,600 | $1.98 | $13,068 | May 28, 2012 |
| Shigeta Hiroaki | — | Option Exercise | 1,000 | $2.28 | $2,280 | May 10, 2012 |
| Izumi Tatsuo | — | Option Exercise | 15,000 | $1.99 | $29,850 | Apr 4, 2012 |
| Johnson Kirk William | Chief Scientific Officer | Purchase | 1,700 | — | — | Mar 29, 2011 |