Security key
G81237128
J-Star Holding Co., Ltd. - ORD SHS CLASS A (YMAT)
CUSIP: G81237128
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / ORD SHS CLASS A
- Total 13F shares
- 50,001
- Total 13F value
- $23,689
- Share change
- +50,001
- SEC-reported price per share
- $0.47
- Number of holders
- 3
- Value change
- +$23,689
- Number of buys
- 3
Report period
Q4 2025
Institutions
3
Top holders
3
YMAT full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
J-Star Holding Co., Ltd. SEC filings
J-Star Holding Co., Ltd. company facts
Broader feeds
Reporting periods
Holder history for CUSIP G81237128
Recent filing periods:
Ownership snapshot
Top reported holders of YMAT - J-Star Holding Co., Ltd. - ORD SHS CLASS A (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
CITADEL ADVISORS LLC
Disclosed value leader
CITADEL ADVISORS LLC
Comparable rows
0/2
Latest evidence
30 Sep 2025
13F
Highest disclosed value: $82,236
2 rows are not safely comparable across share classes.
Quick read
CITADEL ADVISORS LLC has the largest disclosed position value at $82.2K.
0 of 2 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Disclosed position value
Top 2
CITADEL ADVISORS LLC
$82.2K
TWO SIGMA SECURITIES, LLC
$18.5K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-2 of 2 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| CITADEL ADVISORS LLC |
13F
Company
|
—
class O/S missing
|
$82,236
68,530 shares
|
— | 30 Sep 2025 |
| TWO SIGMA SECURITIES, LLC |
13F
Company
|
—
class O/S missing
|
$18,530
15,442 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
3
Shares
50,001
Rows available
3
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q4 2025 Across Filers
Q4 2025 holders
3
Q4 2025 holders
3
Holder diff
0
| Investor | Q4 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q4 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend