United States Biotechnology & Medical Research

MediciNova Inc (MNOV)

MediciNova Inc. recorded a significant divestment recently, as 3D Investment Partners Pte. Ltd. sold shares valued at $1.728 million on September 25, 2026. This transaction represents the sole insider trading activity over the past ninety days. The company previously reported positive results financiers in August, while stock prices fluctuated moderately during this period.
Ticker: MNOV Exchange: NMS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
3.7
Nagao Hideki Non-Executive Director
Transaction date
Sale
Price
130.72
Quantity 7,752 -37.9%
Value US$739,143
3.7
Nagao Hideki Non-Executive Director
Transaction date
Sale
Price
379.70
Quantity 99,915 +36.1%
Value US$1,121,265
3.7
Nagao Hideki Non-Executive Director
Transaction date
Sale
Price
2.18
Quantity 5,365 -43.5%
Value US$11,696
3.7
Nagao Hideki Non-Executive Director
Transaction date
Sale
Price
2.18
Quantity 309 -2.4%
Value US$674
3.7
Nagao Hideki Non-Executive Director
Transaction date
Sale
Price
7.40
Quantity 2,354 -15.7%
Value US$17,420
3.7
Nagao Hideki Non-Executive Director
Transaction date
Sale
Price
5.78
Quantity 1,000 -6.2%
Value US$5,780
Matsuda Kazuko Chief Medical Officer Executive Director
Transaction date
Planned purchase
Price
3.62
Quantity 2,000 +1.8%
Value US$7,240
IWAKI YUICHI President and CEO Executive Director
Transaction date
Planned purchase
Price
3.10
Quantity 20,000 +2.6%
Value US$62,000
Ishizaka Yoshio
Transaction date
Purchase
Price
5.17
Quantity 5,000 +100.0%
Value US$25,850
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
5.60
Quantity 1,000 +4.2%
Value US$5,600
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
5.62
Quantity 24,000 New position
Value US$134,880
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
6.44
Quantity 11,800 +16.9%
Value US$75,992
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
6.67
Quantity 10,000 +16.7%
Value US$66,700
OBrien Geoffrey Vice President Officer
Transaction date
Planned sale
Price
8.00
Quantity 3,300 -39.8%
Value US$26,400
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
3.54
Quantity 12,000 +25.0%
Value US$42,480
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
3.07
Quantity 10,000 +26.3%
Value US$30,700
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
3.19
Quantity 13,000 +52.0%
Value US$41,470
Ishizaka Yoshio Non-Executive Director
Transaction date
Purchase
Price
2.86
Quantity 5,000 New position
Value US$14,300
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
2.95
Quantity 10,000 +66.7%
Value US$29,500
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
2.67
Quantity 9,900 +194.1%
Value US$26,433
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
2.66
Quantity 100 +2.0%
Value US$266
Kobayashi Yutaka Non-Executive Director
Transaction date
Purchase
Price
2.63
Quantity 5,000 New position
Value US$13,150
Izumi Tatsuo Non-Executive Director
Transaction date
Sale
Price
2.17
Quantity 970 -0.2%
Value US$2,105
Izumi Tatsuo Non-Executive Director
Transaction date
Sale
Price
2.10
Quantity 70,300 -10.5%
Value US$147,841
Izumi Tatsuo Non-Executive Director
Transaction date
Purchase
Price
2.21
Quantity 970 +0.1%
Value US$2,144
Izumi Tatsuo Non-Executive Director
Transaction date
Purchase
Price
2.23
Quantity 300 +0.0%
Value US$669
Morris Arlene Non-Executive Director
Transaction date
Sale
Price
3.28
Quantity 8,800 -100.0%
Value US$28,877
Izumi Tatsuo Non-Executive Director
Transaction date
Purchase
Price
3.15
Quantity 158,730 New position
Value US$500,000
Izumi Tatsuo Non-Executive Director
Transaction date
Purchase
Price
1.81
Quantity 5,200 +10.1%
Value US$9,412
Izumi Tatsuo Non-Executive Director
Transaction date
Purchase
Price
1.98
Quantity 6,600 +14.7%
Value US$13,068
O'Toole David D Non-Executive Director
Transaction date
Purchase
Price
1.78
Quantity 5,000 New position
Value US$8,900
Izumi Tatsuo Non-Executive Director
Transaction date
Purchase
Price
1.94
Quantity 30,000 +200.0%
Value US$58,200
Kalafer Michael E Chief Medical Officer Officer
Transaction date
Purchase
Price
4.42
Quantity 19,586 +161.1%
Value US$86,570
Kalafer Michael E Chief Medical Officer Officer
Transaction date
Purchase
Price
4.53
Quantity 3,437 +39.4%
Value US$15,570
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.25
Quantity 1,800 +0.3%
Value US$4,050
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.19
Quantity 1,200 +0.2%
Value US$2,632
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.15
Quantity 1,650 +0.3%
Value US$3,549
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.15
Quantity 2,200 +0.3%
Value US$4,728
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
2.16
Quantity 2,200 +0.3%
Value US$4,756
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
1.75
Quantity 1,071 +0.2%
Value US$1,869
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
1.54
Quantity 2,000 +0.3%
Value US$3,080
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
1.50
Quantity 2,000 +0.3%
Value US$3,000
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Purchase
Price
1.73
Quantity 2,000 +0.3%
Value US$3,468
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Planned purchase
Price
8.21
Quantity 1,300 +0.2%
Value US$10,673
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Planned purchase
Price
8.10
Quantity 2,900 +0.5%
Value US$23,490
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Planned purchase
Price
8.11
Quantity 2,900 +0.5%
Value US$23,519
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Planned purchase
Price
8.09
Quantity 2,170 +0.4%
Value US$17,555
IWAKI YUICHI Chief Executive Officer Executive Director
Transaction date
Planned purchase
Price
7.90
Quantity 730 +0.1%
Value US$5,767
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-09-29 2026-09-25 S Sale
3D Investment Partners Pte. Ltd.
68,974 +49.7%
376.90
US$3,631,084 		68,974 +49.7% 376.90 US$3,631,084
2022-11-30 2022-11-28 S Sale
3.7
Nagao Hideki
Non-Executive Director
7,752 -37.9%
130.72
US$739,143 		7,752 -37.9% 130.72 US$739,143
2022-11-23 2022-11-22 S Sale
3.7
Nagao Hideki
Non-Executive Director
99,915 +36.1%
379.70
US$1,121,265 		99,915 +36.1% 379.70 US$1,121,265
2022-11-23 2022-11-21 S Sale
3.7
Nagao Hideki
Non-Executive Director
5,365 -43.5%
2.18
US$11,696 		5,365 -43.5% 2.18 US$11,696
2022-11-21 2022-11-17 S Sale
3.7
Nagao Hideki
Non-Executive Director
309 -2.4%
2.18
US$674 		309 -2.4% 2.18 US$674
2021-03-15 2021-03-11 S Sale
3.7
Nagao Hideki
Non-Executive Director
2,354 -15.7%
7.40
US$17,420 		2,354 -15.7% 7.40 US$17,420
2020-09-16 2020-09-15 S Sale
3.7
Nagao Hideki
Non-Executive Director
1,000 -6.2%
5.78
US$5,780 		1,000 -6.2% 5.78 US$5,780
2020-03-13 2020-03-13 PP Planned purchase
Matsuda Kazuko

Chief Medical Officer

Executive Director
2,000 +1.8%
3.62
US$7,240 		2,000 +1.8% 3.62 US$7,240
2020-03-12 2020-03-12 PP Planned purchase
IWAKI YUICHI

President and CEO

Executive Director
20,000 +2.6%
3.10
US$62,000 		20,000 +2.6% 3.10 US$62,000
2017-08-23 2017-08-21 B Purchase Ishizaka Yoshio
5,000 +100.0%
5.17
US$25,850 		5,000 +100.0% 5.17 US$25,850
2017-05-16 2017-05-15 B Purchase Kobayashi Yutaka Non-Executive Director
1,000 +4.2%
5.60
US$5,600 		1,000 +4.2% 5.60 US$5,600
2017-05-15 2017-05-12 B Purchase Kobayashi Yutaka Non-Executive Director
24,000 New position
5.62
US$134,880 		24,000 New position 5.62 US$134,880
2016-09-15 2016-09-15 B Purchase Kobayashi Yutaka Non-Executive Director
11,800 +16.9%
6.44
US$75,992 		11,800 +16.9% 6.44 US$75,992
2016-09-09 2016-09-09 B Purchase Kobayashi Yutaka Non-Executive Director
10,000 +16.7%
6.67
US$66,700 		10,000 +16.7% 6.67 US$66,700
2016-07-07 2016-07-05 PlS Planned sale OBrien Geoffrey

Vice President

Officer
3,300 -39.8%
8.00
US$26,400 		3,300 -39.8% 8.00 US$26,400
2014-12-10 2014-12-10 B Purchase Kobayashi Yutaka Non-Executive Director
12,000 +25.0%
3.54
US$42,480 		12,000 +25.0% 3.54 US$42,480
2014-11-28 2014-11-26 B Purchase Kobayashi Yutaka Non-Executive Director
10,000 +26.3%
3.07
US$30,700 		10,000 +26.3% 3.07 US$30,700
2014-11-21 2014-11-20 B Purchase Kobayashi Yutaka Non-Executive Director
13,000 +52.0%
3.19
US$41,470 		13,000 +52.0% 3.19 US$41,470
2014-11-20 2014-11-19 B Purchase Ishizaka Yoshio Non-Executive Director
5,000 New position
2.86
US$14,300 		5,000 New position 2.86 US$14,300
2014-09-11 2014-09-11 B Purchase Kobayashi Yutaka Non-Executive Director
10,000 +66.7%
2.95
US$29,500 		10,000 +66.7% 2.95 US$29,500
2014-09-04 2014-09-03 B Purchase Kobayashi Yutaka Non-Executive Director
9,900 +194.1%
2.67
US$26,433 		9,900 +194.1% 2.67 US$26,433
2014-09-04 2014-09-03 B Purchase Kobayashi Yutaka Non-Executive Director
100 +2.0%
2.66
US$266 		100 +2.0% 2.66 US$266
2014-09-04 2014-09-03 B Purchase Kobayashi Yutaka Non-Executive Director
5,000 New position
2.63
US$13,150 		5,000 New position 2.63 US$13,150
2013-12-13 2013-12-12 S Sale Izumi Tatsuo Non-Executive Director
970 -0.2%
2.17
US$2,105 		970 -0.2% 2.17 US$2,105
2013-12-13 2013-12-12 S Sale Izumi Tatsuo Non-Executive Director
70,300 -10.5%
2.10
US$147,841 		70,300 -10.5% 2.10 US$147,841
2013-11-19 2013-11-18 B Purchase Izumi Tatsuo Non-Executive Director
970 +0.1%
2.21
US$2,144 		970 +0.1% 2.21 US$2,144
2013-11-19 2013-11-18 B Purchase Izumi Tatsuo Non-Executive Director
300 +0.0%
2.23
US$669 		300 +0.0% 2.23 US$669
2013-05-23 2013-05-21 S Sale Morris Arlene Non-Executive Director
8,800 -100.0%
3.28
US$28,877 		8,800 -100.0% 3.28 US$28,877
2013-05-15 2013-05-13 B Purchase Izumi Tatsuo Non-Executive Director
158,730 New position
3.15
US$500,000 		158,730 New position 3.15 US$500,000
2012-06-04 2012-05-31 B Purchase Izumi Tatsuo Non-Executive Director
5,200 +10.1%
1.81
US$9,412 		5,200 +10.1% 1.81 US$9,412
2012-05-30 2012-05-29 B Purchase Izumi Tatsuo Non-Executive Director
6,600 +14.7%
1.98
US$13,068 		6,600 +14.7% 1.98 US$13,068
2012-05-30 2012-05-29 B Purchase O'Toole David D Non-Executive Director
5,000 New position
1.78
US$8,900 		5,000 New position 1.78 US$8,900
2012-05-30 2012-05-28 B Purchase Izumi Tatsuo Non-Executive Director
30,000 +200.0%
1.94
US$58,200 		30,000 +200.0% 1.94 US$58,200
2009-07-30 2009-07-28 B Purchase Kalafer Michael E

Chief Medical Officer

Officer
19,586 +161.1%
4.42
US$86,570 		19,586 +161.1% 4.42 US$86,570
2009-07-30 2009-07-28 B Purchase Kalafer Michael E

Chief Medical Officer

Officer
3,437 +39.4%
4.53
US$15,570 		3,437 +39.4% 4.53 US$15,570
2009-02-04 2009-02-02 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
1,800 +0.3%
2.25
US$4,050 		1,800 +0.3% 2.25 US$4,050
2009-01-27 2009-01-27 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
1,200 +0.2%
2.19
US$2,632 		1,200 +0.2% 2.19 US$2,632
2009-01-27 2009-01-26 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
1,650 +0.3%
2.15
US$3,549 		1,650 +0.3% 2.15 US$3,549
2009-01-27 2009-01-23 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,200 +0.3%
2.15
US$4,728 		2,200 +0.3% 2.15 US$4,728
2009-01-21 2009-01-20 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,200 +0.3%
2.16
US$4,756 		2,200 +0.3% 2.16 US$4,756
2009-01-21 2009-01-16 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
1,071 +0.2%
1.75
US$1,869 		1,071 +0.2% 1.75 US$1,869
2009-01-15 2009-01-15 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,000 +0.3%
1.54
US$3,080 		2,000 +0.3% 1.54 US$3,080
2009-01-15 2009-01-14 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,000 +0.3%
1.50
US$3,000 		2,000 +0.3% 1.50 US$3,000
2009-01-15 2009-01-13 B Purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,000 +0.3%
1.73
US$3,468 		2,000 +0.3% 1.73 US$3,468
2007-10-04 2007-10-04 PP Planned purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
1,300 +0.2%
8.21
US$10,673 		1,300 +0.2% 8.21 US$10,673
2007-10-03 2007-10-03 PP Planned purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,900 +0.5%
8.10
US$23,490 		2,900 +0.5% 8.10 US$23,490
2007-10-03 2007-10-02 PP Planned purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,900 +0.5%
8.11
US$23,519 		2,900 +0.5% 8.11 US$23,519
2007-10-03 2007-10-01 PP Planned purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
2,170 +0.4%
8.09
US$17,555 		2,170 +0.4% 8.09 US$17,555
2007-10-03 2007-10-01 PP Planned purchase IWAKI YUICHI

Chief Executive Officer

Executive Director
730 +0.1%
7.90
US$5,767 		730 +0.1% 7.90 US$5,767
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