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RUBI · NASDAQ · Marine Shipping

Rubico (RUBI)

Owner of fixed-charter Suezmax tankers and MR newbuildings.

$1.78
Pre-market−0.03 (−1.66%)
At close$1.81(+0.56%)

Breakdown13F · 13D/G · Form 4

Institutions331 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail≈ 4,345.87%142.00M shares
Adds to4,345.87%

3.27M company shares as of Aug 21, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

The share count is from the company's Nov 2020 quarterly report; nothing newer is on file here.

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

A stock split fell inside the quarter, so quarter-on-quarter changes are not shown.

These groups come from separate filings that can overlap, so they add to 4,345.87%; nothing is left for Other.

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
BlackRock, Inc.Institution
389.07%12.71M13Fas of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
250.87%8.20M13Fas of Jun 30, 2026
FMR LLCInstitution
237.47%7.76M13Fas of Jun 30, 2026
Vanguard Capital Management LLCInstitution
190.51%6.23M13Fas of Jun 30, 2026
Wellington Management Group LLPInstitution
184.98%6.04M13Fas of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
160.98%5.26M13Fas of Jun 30, 2026
Boston PartnersInstitution
153.44%5.01M13Fas of Jun 30, 2026
American Century Companies IncInstitution
141.47%4.62M13Fas of Jun 30, 2026
Capital Research Global InvestorsInstitution
118.41%3.87M13Fas of Jun 30, 2026
Nuveen, LLCInstitution
116.14%3.79M13Fas of Jun 30, 2026
Geode Capital Management, LLCInstitution
115.99%3.79M13Fas of Jun 30, 2026
Edenbrook Capital, LLCInstitution
108.82%3.56M13Fas of Jun 30, 2026
State Street CorpInstitution
107.97%3.53M13Fas of Jun 30, 2026
325 Capital LLCInstitution
104.44%3.41M13Fas of Jun 30, 2026
Nine Ten Capital Management LLCInstitution
99.81%3.26M13Fas of Jun 30, 2026
Granahan Investment Management, LLCInstitution
94.36%3.08M13Fas of Jun 30, 2026
Canada Pension Plan Investment BoardInstitution
91.66%3.00M13Fas of Jun 30, 2026
Jane Street Group, LLCInstitution
67.30%2.20M13Fas of Jun 30, 2026
Park West Asset Management LLCInstitution
61.21%2.00M13Fas of Jun 30, 2026
Morgan StanleyInstitution
60.95%1.99M13Fas of Jun 30, 2026
Qube Research & Technologies LtdInstitution
59.86%1.96M13Fas of Jun 30, 2026
Blue Grotto Capital, LLCInstitution
52.23%1.71M13Fas of Jun 30, 2026
Kennedy Capital Management LLCInstitution
51.01%1.67M13Fas of Jun 30, 2026
Northern Trust CorpInstitution
47.54%1.55M13Fas of Jun 30, 2026
Royce & Associates LPInstitution
45.09%1.47M13Fas of Jun 30, 2026

13F — a manager's quarterly holdings

Institutions13F

No 13F holders on record.

Ownership statements13D/G · 5% or more, as filed

No 13D/G filer at 5% or more on record.

Insider tradesForm 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Jun 12, 2026
HRT Financial LP10 percent owner
Sale551,020$0.95400
Jun 11, 2026
HRT Financial LP10 percent owner
Purchase484,963$0.8120384,941

CongressHouse and Senate disclosures

Not reported.