Security key
Y1250N131
- Security type / class
- Equity / COM NEW
- Total 13F shares
- 38,211
- Total 13F value
- $207,486
- Share change
- +38,211
- SEC-reported price per share
- $5.43
- Number of holders
- 2
- Value change
- +$207,486
- Number of buys
- 2
Report period
Q2 2026
Institutions
2
Top holders
2
RUBI full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
Rubico Inc. SEC filings
Rubico Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP Y1250N131
Recent filing periods:
Ownership snapshot
Top reported holders of RUBI - Rubico Inc. - COM NEW (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
Family Trading Inc.
Disclosed value leader
Family Trading Inc.
Comparable rows
1/5
Latest evidence
31 Mar 2026
13D/G
13F
Lead comparable stake: 3.3%
4 rows are not safely comparable across share classes.
13D/G row: Family Trading Inc.
Quick read
Family Trading Inc. leads the comparable SEC ownership view at 3.3%.
1 of 5 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.
Open SEC evidence
Opens Family Trading Inc.'s linked filing trail.
Comparable ownership
Top 1
Family Trading Inc.
3.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-5 of 5 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Family Trading Inc. |
13D/G
|
3.3%
Reported 13D/G
· 12 Nov 2025
|
$2,271,306
1,465,359 shares
|
$0 | 12 Nov 2025 |
| JANE STREET GROUP, LLC |
13F
Company
|
—
denominator unverified
|
$13,849
28,942 shares
|
— | 31 Mar 2026 |
| Tower Research Capital LLC (TRC) |
13F
Company
|
—
denominator unverified
|
$3,853
8,053 shares
|
— | 31 Mar 2026 |
| UBS Group AG |
13F
Company
|
—
denominator unverified
|
$2,104
4,401 shares
|
— | 31 Mar 2026 |
| CITIGROUP INC |
13F
Company
|
—
denominator unverified
|
$14
30 shares
|
— | 31 Mar 2026 |
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 Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
2
Shares
38,211
Rows available
2
| 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 Q2 2026 vs Q2 2026 Across Filers
Q2 2026 holders
2
Q2 2026 holders
2
Holder diff
0
| Investor | Q2 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend