Kazuko Matsuda - 16 Jan 2026 Form 4 Insider Report for MEDICINOVA INC (MNOV)

Role: Chief Medical Officer
Signature: /s/ Yuichi Iwaki, attorney-in-fact
Issuer symbol: MNOV
Transactions as of: 16 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 20 Jan 2026, 17:04:59 UTC
Previous filing: 14 Feb 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Matsuda Kazuko	Chief Medical Officer	C/O MEDICINOVA, INC., 4275 EXECUTIVE SQUARE, SUITE 300, LA JOLLA	/s/ Yuichi Iwaki, attorney-in-fact	20 Jan 2026	0001531140

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MNOV	Employee Stock Option (Right to Buy)	Award	$0	+350,000		$0.000000	350,000	16 Jan 2026	Common Stock	350,000	$2.10	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On January 7, 2025, the reporting person was granted an option to purchase 350,000 shares of common stock. The option vests based on the satisfaction of certain performance criteria for the fiscal year ended December 31, 2025. Such performance criteria for 2025 were met, resulting in full vesting of the option.