J-Star Holding Co., Ltd.
YMAT- Exchange
- Nasdaq
- Industry
- Sporting & Athletic Goods, NEC
- SEC CIK
- 0001875016
No open-market purchases or sales by J-Star Holding Co., Ltd. insiders were filed in the last 90 days; 4 institutions reported holding it in 13F filings for Q2 2026, worth $35.3K in total; no superinvestor holds it.
Holders of 5% or more of YMAT
Holders whose latest Schedule 13D or 13G filing reports 5% or more of J-Star Holding Co., Ltd., largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of J-Star Holding Co., Ltd. on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
Schedule 13D and 13G filings on J-Star Holding Co., Ltd., newest first.
No Schedule 13D or 13G filings on J-Star Holding Co., Ltd. are on file.
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell J-Star Holding Co., Ltd. shares.
No Form 144 notices for J-Star Holding Co., Ltd. are on file.