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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.

Q1 2026 vs. Q4 2025

How the institutions holding J-Star Holding Co., Ltd. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of YMAT: Q4 2025 compared with Q1 2026
MeasureQ4 2025Q1 2026Change
Holders32−1
Shares50.0K36.1K−13.9K (−27.7%)
Value$23.7K$10.2K−$13.5K (−57.1%)

New holders (2)

Institutions that held J-Star Holding Co., Ltd. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to YMAT in Q1 2026
InstitutionSharesValue% of portfolio
Citadel Advisors LLC22,160$6.23K0.00%
XTX Topco Ltd13,984$3.93K0.00%

Sold out (3)

Institutions that held J-Star Holding Co., Ltd. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of YMAT in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
HRT Financial LP35,647$17.0K
Two Sigma Securities, LLC13,635$6.35K
UBS Group AG719$335