Rubico Inc.
RUBINasdaqIndustrials · Water Transportation · 1T · SEC filings ↗ · Compare ⊕
View price & chart on Yahoo Finance ↗Financials
SEC XBRL · annualNo structured XBRL financials available (common for pre-2009 filers, foreign issuers, or companies that never reported as a US public company).
5%+ owners
SEC Schedule 13D / 13G · last 3 yrs- L1 Capital Global Opportunities Master Fund, Ltd.Passive (13G)Feb 17, 2026
- Arena Investors LpPassive (13G)Feb 13, 2026
- Family Trading Inc.Activist (13D)Nov 17, 2025
Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.
Short interest
FINRA · bi-monthly| Settlement | Shares short | Days to cover | Δ vs prior |
|---|---|---|---|
| May 15, 2026 | 163,804 | 2.1 | +171.3% |
| Apr 30, 2026 | 60,375 | 1.0 | +1.3% |
| Apr 15, 2026 | 59,604 | 1.0 | -76.8% |
| Mar 31, 2026 | 257,505 | 1.0 | -48.2% |
| Mar 13, 2026 | 497,421 | 1.0 | +336.9% |
Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.
Recent SEC filings
All filings ↗- 424B3May 26, 2026
- 424B3May 26, 2026
- 6-KFORM 6-KMay 26, 2026
- 424B4FORM 424B4May 21, 2026
- EFFECTMay 20, 2026
- FWPMay 19, 2026
- F-1FORM F-1May 8, 2026
- EFFECTMay 1, 2026
- 424B3FORM 424B3May 1, 2026
- CORRESPApr 28, 2026
- UPLOADApr 28, 2026
- 424B3FORM 424B3Apr 21, 2026
- 6-KFORM 6-KApr 21, 2026
- F-1FORM F-1Apr 21, 2026
- DRSApr 10, 2026