YMAT

J-Star Holding Co., Ltd.

Company with tickers: YMAT

CIK

1875016

CUSIP

G81237128

Shares Outstanding

13,953,333

13F Activity (30d)

2 filings 2 filers

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Date	Insider	Role	Type	Shares	Price	Value	After
2026-03-18	Van Sam	Director	Other	171,129	—	—	171,129
2026-03-18	HUANG CHING-CHOU	Director	Other	240,000	—	—	240,000
2026-03-18	Chiang Jing-Bin	Director, 10% Owner	Other	1,209,091	—	—	1,209,091
2026-03-18	New Moon Corp	10% Owner	Other	4,888,092	—	—	4,888,092
2026-03-18	WANG SHEN-HUEI	Director	Other	240,000	—	—	240,000
2026-03-18	SUNG TING-PANG	Director	Other	240,000	—	—	240,000
2026-03-18	Chiang Jing-Bin	Director, 10% Owner	Other	4,888,092	—	—	4,888,092
2026-03-18	LIN PING-HONG	Director	Other	240,000	—	—	240,000

Showing 1–8 of 8 transactions