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RUBI 424B3: Stock split

Rubico Inc.

Filed with the SEC on · accession 0001171843-26-006913

RUBI filed a 424B3 (prospectus (offering)) with the SEC on Oct 28, 2026. The final terms of an offering of shares or bonds. The stock moved -26.8% by the first close after the filing.

Summary of the filing

Rubico Inc. announced a 1-for-25 reverse stock split of its issued common shares, effective at the opening of trading on October 30, 2026, reducing issued shares from approximately 13,517,355 to approximately 540,694.

For details, click here →How to read a 424B3 →

Key details

Stated capital before reverse split$135K
Stated capital after reverse split$5K
RegistrantRubico Inc.
Exchange where shares tradeNasdaq Capital Market
Chief financial officerNikolaos Papastratis

How RUBI stock reacted

Close before

$3.79

Oct 27, 2026

First close after

-26.83%

$2.77

5 trading days

-45.68%

$2.06

Since filing

-74.54%

$0.97

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Frequently asked questions

What did RUBI file with the SEC on Oct 28, 2026?

RUBI filed a 424B3 (Stock split). Rubico Inc. announced a 1-for-25 reverse stock split of its issued common shares, effective at the opening of trading on October 30, 2026, reducing issued shares from approximately 13,517,355 to approximately 540,694.

What does a stock split mean for RUBI stock?

Usually: fewer shares means each remaining share owns more of the company. It matters whether the company actually buys and at what price.

How do I read a 424B3?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did RUBI stock react to this filing?

RUBI closed at $3.79 before the filing and $2.77 on Oct 28, 2026 (-26.83%). Five trading days later: $2.06 (-45.68%).

Other RUBI SEC filings

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