NasdaqIndustrialsWater TransportationATHENS, Greece

Rubico Inc. RUBI

Ask your AI

Estimated market cap $8093 shares, shares as of Dec 31, 2025CIK 1943421

Insider trades, 12 mo

1 buy · 1 sell

$523.5K sold, open market

Congress trades, 24 mo

—

No disclosed trades

13F holders, Q3 2026

0 added · 1 trimmed

13F holders

…

Lobbying, 12 mo

—

No lobbying filings

Federal contracts, 12 mo

—

None matched

Ask your AI:

Latest 10-Q

What changed in Rubico Inc.'s latest quarterly report, compared with the one before.

We have not read a recent 10-Q for this company yet.

Insider trades

2 in 12 mo

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No open-market insider trades reported since Jun 12, 2026. Insiders have two business days to file.

Recent insider trades

HRT Financial LP 10% owner	Jun 12 Form 4 ↗	Sale	−$523.5K 551,020 sh @ $0.95	-101.3%
HRT Financial LP 10% owner	Jun 11 Form 4 ↗	Buy	+$392.8K 484,963 sh @ $0.81	-101.9%

All RUBI insider trades →Planned sales (Form 144): see notices

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

Loading…

13F holders

67,040 shares

8 funds report RUBI. Values checked against market prices.

Q3 2026. 6 new, 0 added to, 1 trimmed, 2 exited since Q2 2026.

Top 13F holders
#
1	HRT Financial LP 13F ↗	25,552	$27.0K	n/a
2	Jane Street Group, LLC 13F ↗	15,799	$16.9K	New
3	Acadian Asset Management LLC 13F ↗	11,265	$12.0K	New
4	LPL Financial LLC 13F ↗	10,000	$10.7K	New
5	UBS Group AG 13F ↗	4,393	$4,701	-46.5%
6	SBI Securities Co., Ltd. 13F ↗	20	$21	New
7	JPMorgan Chase & Co 13F ↗	7	$8	New
8	Caitong International Asset Management Co., Ltd 13F ↗	4	$4	New

2 of these funds report values in thousands of dollars; their figures are shown in dollars.

Download CSV Every fund that holds RUBI, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

Loading…

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

Loading…

Lobbying

What Rubico Inc. and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What Rubico Inc. and its lobbying firms report each quarter.

Loading…

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q2 2026	3	—	38,289	$207.5K
Q3 2026	8	+5	67,040	$71.3K

Each point is a quarter-end, from Q2 2026 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (Y1250N131). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2026) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Loading…

More filings and data

Each opens the table.

Ownership stakes5 in 12 mo 8-K eventsNone in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesNone in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record IPO history6 registrations Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: Rubico Inc.
Address: VAS SOFIAS 1 & MEG. ALEXANDROU, ATHENS, Greece
Phone: 30 2108128180
Fiscal year ends: Dec 31
Filer category: Non-accelerated filer, emerging growth company
Incorporated in: Marshall Islands
Listed as: RUBI (Nasdaq)
Former names: Central Tactical Acquisitions Inc. (until 2023)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

Loading…

$0.8656−$0.08 (−8.89%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $0.8656 · High $9.78Nov 13, 2026

Aug 13, 2026Low $0.8656 · High $32.67Nov 13, 2026

Nov 13, 2025Low $0.8656 · High $99,609.38Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. The stock split 1-for-25 on Oct 30, 2026; 3-for-2 on Oct 6, 2026; 1-for-25 on Jun 26, 2026; 1-for-10 on Apr 9, 2026; 16-for-125 on Feb 12, 2026; earlier prices are shown divided by the split ratio. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

Loading chart…

Information, not investment advice. Company matching is automatic; check the source before relying on one row.