YMAT · J-Star Holding Co., Ltd. · Holdings
Market Cap
$6.42M
Shares
4.01M
Volume · Oct 5
40.26K
Avg daily vol (60 sessions)
1.42M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out. Each fund's Change is measured against its own
previous reported quarter, shown in the Reported column. Pick a
completed quarter in the Quarter selector below to put every
fund on one quarter and see the stock-wide activity breakdown.
Holders: 5
Total Value: $27,983
Total Shares: 52,494
Institutional Ownership Trend
5 quarters
Holder Concentration
Across 4 13F filersTop Holder
39.5%
of institutional value
Top 5
100.0%
of institutional value
Top 10
100.0%
of institutional value
HHI
2,900
Highly concentrated
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid XTX Topco Ltd | $11,056 | 39.51% | 20,705 | Shares | 2026-08-14 | |
| Mid Tower Research Capital LLC (TRC) | $7,209 | 25.76% | 13,500 | Shares | 2026-08-11 | |
| Mid StoneX Group Inc. | $6,524 | 23.31% | 12,218 | Shares | 2026-08-12 | |
| Mega UBS Group AG | $3,184 | 11.38% | 5,963 | Shares | 2026-08-13 | |
| Small Polaris Financial Partners | $10 | 0.04% | 108 | Shares | 2026-10-02 |