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.
Q3 2025 vs. Q2 2025
How the institutions holding J-Star Holding Co., Ltd. changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Q3 2025 | Change |
|---|---|---|---|
| Holders | 0 | 2 | +2 |
| Shares | 0 | 84.0K | +84.0K |
| Value | $0 | $100.8K | +$100.8K |
New holders (2)
Institutions that held J-Star Holding Co., Ltd. at the end of Q3 2025 but not at the end of Q2 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Citadel Advisors LLC | 68,530 | $82.2K | 0.00% |
| Two Sigma Securities, LLC | 15,442 | $18.5K | 0.00% |
Sold out (0)
Institutions that held J-Star Holding Co., Ltd. at the end of Q2 2025 and filed for Q3 2025 without it.
None.