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RUBI on Nasdaq

Rubico Inc.

Rubico Inc. is a water transportation company, listed on Nasdaq (RUBI).1

Price unavailable

Last updated Oct 21, 2026.

Overview

$23.5MRevenue, fiscal 20252
$2.6MNet income, fiscal 20252

Compare with Dynagas LNG Partners LP, EuroDry Ltd. or United Maritime Corp, or pick any stock.

  • TickerRUBI on Nasdaq1
  • IndustryWater Transportation1
  • Headquarters1T1
  • Incorporated inMarshall Islands3
  • Business addressVas Sofias 1 & Meg. Alexandrou, Athens3
  • Filer categoryNon-accelerated filer, Emerging growth company3
  • Legal formCorporation

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Yacht SPA to purchase Roman Explorer Inc., the company that will acquire ownership of the Newbuilding Yacht, as discussed further below.4 From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

52.7%Operating margin2
11.2%Net margin2
-2.8%Revenue growth, 20252
5.8%Return on equity2
1.70×Debt to equity2

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Other costs89¢$20.9M
  • Profit11¢$2.6M

Out of $23.5M in revenue.2

Where each dollar of operating cash went, fiscal 2025

  • Kept or used elsewhere100¢$11.3M

Out of $11.3M of cash from operations.2

Financial statements

Revenue2$23.5M in 2025−4% since 2023
0$10.0M$20.0M$30.0M2023: $24.5M$24.5M20232024: $24.2M$24.2M2024−1%2025: $23.5M$23.5M2025−3%
Operating income2$12.4M in 2025−0% since 2023
0$5.0M$10.0M$15.0M2023: $12.4M$12.4M20232024: $12.4M$12.4M2024−0%2025: $12.4M$12.4M2025−0%
Net income2$2.6M in 2025−60% since 2023
0$2.0M$4.0M$6.0M$8.0M2023: $6.6M$6.6M20232024: $5.9M$5.9M2024−10%2025: $2.6M$2.6M2025−56%

Every line of the income statement as filed: the last 3 fiscal years, latest first.2

Period ending2025-12-312024-12-312023-12-31
Revenues (Note 15)$23.5M$24.2M$24.5M
Voyage expenses (including $310, $302 and $295 respectively, to related party) (Note 5)$596.0K$495.0K$508.0K
Vessel depreciation (Note 4)$4.2M$4.2M$4.5M
Management fees-related party (Note 5)$688.0K$567.0K$550.0K
General and administrative expenses (Note 5)$1.3M$1.9M$1.7M
Operating income$12.4M$12.4M$12.4M
Loss on derivative financial instruments-$1.6M$0$0
Interest income$62.0K$25.0K$62.0K
Total other expenses, net-$9.8M-$6.5M-$5.8M
Net Income$2.6M$5.9M$6.6M
Comprehensive income attributable to common shareholders$2.6M$5.9M$6.6M
Earnings per common share, basic (in dollars per share)$49.07$454.96$507.54
Earnings per common share, diluted (in dollars per share)$49.07$454.96$507.54
Vessel operating expenses$4.4M$4.7M$4.8M
Interest and finance costs$8.3M$6.5M$5.9M

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Corporate structure

Rubico Inc. sits at the top of its group. 1 entity on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Rubico Inc.

  • Rubico Inc. 1T

Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Rubico Inc. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, net$106.2M2 Dec 31, 2025$110.4M2 Dec 31, 2024−3.8%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$4.0M2 Dec 31, 2025$1.2M2 Dec 31, 2024+241.4%

Inventory

ItemLatestA year beforeChange
Inventory, total$194.0K2 Dec 31, 2025$176.0K2 Dec 31, 2024+10.2%

Leadership

Who has led Rubico Inc., and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Kalliopi Ornithopoulou2026–now

Chair

  1. Kalliopi Ornithopoulou2026–now

President

  1. Kalliopi Ornithopoulou2026–now

Chief financial officer

  1. Nikolaos Papastratis2026–now
Board members and other officers (4)

Named in SEC Form D filings

People the company listed in its private-offering notices.

  • DirectorGeorge Daskalakis named Jun 29, 202610
  • DirectorGeorge Xiradakis named Jun 29, 202610

Former names

  • Central Tactical Acquisitions Inc.Sep 9, 2022 to Jan 10, 20233

Timeline

  1. Apr 1, 2026New chief executive Kalliopi Ornithopoulou becomes CEO5

Filings

195 filings to the SEC since October 2021: 1 annual reports, 7 insider forms, 11 large holders, 1 private raises, 175 other. The latest 20:

  1. Oct 15, 2026424B3 EDGAR
  2. Oct 15, 20266-K EDGAR
  3. Oct 6, 2026424B3 EDGAR
  4. Oct 6, 20266-K EDGAR
  5. Sep 28, 2026424B3 EDGAR
  6. Sep 28, 20266-K EDGAR
  7. Sep 21, 2026424B3 EDGAR
  8. Sep 21, 20266-K EDGAR
  9. Sep 17, 2026424B3 EDGAR
  10. Sep 17, 20266-K EDGAR
  11. Aug 17, 2026424B3 EDGAR
  12. Aug 17, 20266-K EDGAR
  13. Aug 14, 20266-K EDGAR
  14. Aug 7, 20266-K EDGAR
  15. Aug 5, 2026424B5 EDGAR
  16. Jul 31, 20266-K EDGAR
  17. Jul 24, 2026424B3 EDGAR
  18. Jul 24, 20266-K EDGAR
  19. Jul 16, 2026424B3 EDGAR
  20. Jul 16, 2026424B3 EDGAR

The 195 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

2 open-market trades by officers, directors and large owners since October 2021: 1 buys and 1 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Jun 12, 2026HRT FINANCIAL LP10% ownerSale551,020$0.95$523.5KForm 4
Jun 11, 2026HRT FINANCIAL LP10% ownerBuy484,963$0.81$392.8KForm 4

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Funding

Where the company's money came from, by calendar year: private offerings filed with the SEC, federal grants, loans, contracts and other assistance from USAspending.gov, and PPP loans from the SBA. Each bar links to the records below.

Private raises

Private offerings the company reported to the SEC on Form D. The amount is what the latest filing says was sold so far, charted in the year of the first sale. Covers filings since Oct 1, 2021.

  1. Jun 12, 2026Filed a private offering of equity10 Form D: $10.3 million offered in all Form D

SEC filer profile

How Rubico Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARRubico Inc.1
  • CIK0001943421
  • Filer statusNon-accelerated filer an emerging growth company; not a shell company4
  • Incorporated inMarshall Islands4
  • Fiscal year endsDecember 311
  • Industry code (SIC)4400 Water Transportation1
  • SEC reviewing officeOffice of Energy & Transportation, Division of Corporation Finance1
  • Business addressVas Sofias 1 & Meg. Alexandrou, Athens, Greece1
  • Phone30 21081281801
  • Shares outstanding385,501 shares; 100,000 Series D Preferred Stock shares as of Dec 31, 20254
  • AuditorDeloitte Certified Public Accountants S.A., Athens, Greece PCAOB ID 1163; no auditor attestation of internal control over financial reporting4
  • On EDGAR sinceSep 9, 20221
  • Filings195 in all: 424B3 (69), 6-K (38), CORRESP (12), EFFECT (7), UPLOAD (7), 3 (6), F-1 (6), F-1/A (6)1
    All 30 form types

    DRS (5), DRS/A (5), F-1MEF (5), SCHEDULE 13D/A (4), 424B4 (3), SCHEDULE 13G (3), SCHEDULE 13G/A (3), DRSLTR (2), 20-F (1), 20FR12B (1), 20FR12G (1), 4 (1), 424B5 (1), CERT (1), D (1), F-3 (1), F-3/A (1), FWP (1), POS AM (1), RW (1), SCHEDULE 13D (1), SEC STAFF ACTION (1)

  • Latest filingsAnnual report (20-F) Mar 23, 2026

Securities registered for trading

ClassSymbolExchange
Shares of common stock, par value $0.01 per shareRUBINasdaq

From the cover page of the 20-F filed Mar 23, 2026 (Section 12(b) of the Exchange Act).4

Sources

The numbers on this page point here. Each one links to the record it came from.

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