IWAKI YUICHI

Director at AVIGEN INC \DE · on record since Mar 10, 2006
Director at MEDICINOVA INC · on record since Mar 6, 2006
President and CEO at MEDICINOVA INC · on record since Dec 5, 2014

Insider trading activity of IWAKI YUICHI

Transactions on record: 134; since Dec 17, 2003

Open-market buys: 16; $174.1K

Open-market sells: 48; $838.4K

Companies traded: 2; last filing Jan 20, 2026

Figures computed from official regulatory filings — .

Companies where IWAKI YUICHI has traded

MEDICINOVA INC71 tx · $2.1M · Jan 20, 2026
AVIGEN INC \DE63 tx · $983.4K · May 6, 2008

Track record of IWAKI YUICHI

Statistical track record

Free account

Open-market buys: 17

Last buy: Mar 12, 2020

Win rates, median returns and the proven-insider analysis come with a free account.

Create a free account

Transaction history of IWAKI YUICHI

Co-insiders of IWAKI YUICHI

BIOTECHNOLOGY VALUE FUND II LPAVIGEN INC \DE +1
BIOTECHNOLOGY VALUE FUND L PAVIGEN INC \DE +1
BVF INC/ILAVIGEN INC \DE +1

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MEDICINOVA INCListing on record	Jan 20, 2026	AwardD (derivative)	450,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Feb 14, 2025	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 10, 2025	AwardD (derivative)	400,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 11, 2024	AwardD (derivative)	210,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 25, 2023	AwardD (derivative)	235,125	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 31, 2022	AwardD (derivative)	302,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jul 23, 2021	ExerciseD (derivative)	-39,583	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jul 23, 2021	Exercise	39,583	2.54 USD	$100.5K		SEC
MEDICINOVA INCListing on record	Mar 1, 2021	Exercise	86,250	2.46 USD	$212.2K	Unusual size	SEC
MEDICINOVA INCListing on record	Mar 1, 2021	ExerciseD (derivative)	-86,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Feb 4, 2021	AwardD (derivative)	495,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Apr 13, 2020	Exercise	60,417	2.54 USD	$153.5K		SEC
MEDICINOVA INCListing on record	Apr 13, 2020	ExerciseD (derivative)	-60,417	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Apr 13, 2020	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Mar 12, 2020	Buy	20,000	3.10 USD	$62K	conv 68Unusual sizeFirst in 12mo	SEC
MEDICINOVA INCListing on record	Jan 10, 2020	AwardD (derivative)	412,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 17, 2019	AwardD (derivative)	470,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 7, 2019	Exercise	18,572	2.20 USD	$40.9K		SEC
MEDICINOVA INCListing on record	Jan 7, 2019	ExerciseD (derivative)	-18,572	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Mar 7, 2018	Exercise	50,003	2.20 USD	$110K		SEC
MEDICINOVA INCListing on record	Mar 7, 2018	ExerciseD (derivative)	-50,003	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 9, 2018	AwardD (derivative)	450,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 5, 2018	ExerciseD (derivative)	-53,363	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 5, 2018	Exercise	53,363	4.42 USD	$235.9K	Unusual size	SEC
MEDICINOVA INCListing on record	Nov 6, 2017	Exercise	21,067	4.42 USD	$93.1K	Unusual size	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MEDICINOVA INCListing on record	Jan 20, 2026	AwardD (derivative)	450,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Feb 14, 2025	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 10, 2025	AwardD (derivative)	400,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 11, 2024	AwardD (derivative)	210,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 25, 2023	AwardD (derivative)	235,125	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 31, 2022	AwardD (derivative)	302,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jul 23, 2021	ExerciseD (derivative)	-39,583	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jul 23, 2021	Exercise	39,583	2.54 USD	$100.5K		SEC
MEDICINOVA INCListing on record	Mar 1, 2021	Exercise	86,250	2.46 USD	$212.2K	Unusual size	SEC
MEDICINOVA INCListing on record	Mar 1, 2021	ExerciseD (derivative)	-86,250	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Feb 4, 2021	AwardD (derivative)	495,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Apr 13, 2020	Exercise	60,417	2.54 USD	$153.5K		SEC
MEDICINOVA INCListing on record	Apr 13, 2020	ExerciseD (derivative)	-60,417	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Apr 13, 2020	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Mar 12, 2020	Buy	20,000	3.10 USD	$62K	conv 68Unusual sizeFirst in 12mo	SEC
MEDICINOVA INCListing on record	Jan 10, 2020	AwardD (derivative)	412,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 17, 2019	AwardD (derivative)	470,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 7, 2019	Exercise	18,572	2.20 USD	$40.9K		SEC
MEDICINOVA INCListing on record	Jan 7, 2019	ExerciseD (derivative)	-18,572	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Mar 7, 2018	Exercise	50,003	2.20 USD	$110K		SEC
MEDICINOVA INCListing on record	Mar 7, 2018	ExerciseD (derivative)	-50,003	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 9, 2018	AwardD (derivative)	450,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 5, 2018	ExerciseD (derivative)	-53,363	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MEDICINOVA INCListing on record	Jan 5, 2018	Exercise	53,363	4.42 USD	$235.9K	Unusual size	SEC
MEDICINOVA INCListing on record	Nov 6, 2017	Exercise	21,067	4.42 USD	$93.1K	Unusual size	SEC