Rubico Inc. (RUBI) — Institutional Holders, Q2 2026
3 institutional investment managers reported a RUBI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $207.5K. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
RUBI in Q2 2026: what funds did
Funds that filed a 13F for both Q4 2025 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Cable Car CapitalNew · +30,000 sh+$162.9K
- UBS Group AGNew · +8,211 sh+$44.6K
Biggest sellers
- JANE STREET GROUPSold out · -17 sh-$92.00
RUBI 13F holders ranked 1–3 of 3
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q4 2025 |
|---|---|---|---|---|---|
| 1 | Cable Car Capital#1 · 30,000 sh | 30,000 | $162.9K | <0.01% | New |
| 2 | UBS Group AG#2 · 8,211 sh | 8,211 | $44.6K | 0.00% | +86.4% |
| 3 | ROYAL BANK OF CANADA#3 · 78 sh | 78 | $0.00 | 0.00% | New |
Funds that sold out of RUBI in Q2 2026 (3)
Held RUBI at the end of Q4 2025 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q4 2025 |
|---|---|---|
| JANE STREET GROUP17 sh | 17 | $34.6K |
| TUCKER ASSET MANAGEMENT0 sh | 0 | $54.00 |
| BANK OF AMERICA0 sh | 0 | $3.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q4 2025 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.