YMAT — J-STAR HLDG CO LTD
As of Q2 2026, 1 SEC-registered investment managers reported holding YMAT (J-STAR HLDG CO LTD) in their latest 13F filings, with a combined reported value of $3.18K across 5.96K shares. That is -73.1% by share count (-16.20K shares) versus the previous quarter, while reported value moved -48.9%. Ownership is concentrated: the five largest holders account for 100.0% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 1 opened new positions, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
YMAT is classified in the Consumer Discretionary sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 5.96K | $3.18K | 0.00% | New |
Q1 2026 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 22.16K | $6.23K | 0.00% | New |
Q4 2025 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 719 | $335 | 0.00% | New |
Q3 2025 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 68.53K | $82.24K | 0.00% | New |
New Positions (Q2 2026)
- UBS Group AG 5.96K sh · $3.18K
Fully Exited (vs previous quarter)
- Citadel Advisors sold 22.16K sh · $6.23K
Fund Position History — shares by quarter (top 2 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 |
|---|---|---|---|---|
| UBS Group AG | 5.96K | — | 719 | — |
| Citadel Advisors | — | 22.16K | — | 68.53K |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details