Rubico Inc. (RUBI) IPO — S-1 Filing, Stock & Insider Activity

Rubico Inc. IPO — Status & S-1 Filing

Track every registration update on the InsiderAlpha IPO tracker.

Updated Jul 16, 2026 · Last SEC filing 2026-06-16

Rubico Inc. (RUBI) has filed 1 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-16. 2 Form 8-K material event filings were reported by RUBI in the last 90 days. InsiderAlpha tracks every RUBI SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Rubico Inc. (RUBI)

SEC CIK0001943421

90-Day SEC Filing Activity

Form 4 filings (90d)1
Form 8-K filings (90d)2
Latest Form 4 filing2026-06-16

Recent RUBI Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
HRT FINANCIAL LP10% OwnerS — Open-market sale551.0K$0.95$526KSEC
HRT FINANCIAL LP10% OwnerP — Open-market purchase485.0K$0.81$394KSEC

All transactions sourced from SEC EDGAR Form 4 filings for Rubico Inc. (RUBI). Updated in real time as new filings are submitted to the SEC.

Most-Active RUBI Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
HRT FINANCIAL LP2$919K

Recent RUBI Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in RUBI insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

RUBI Insider Trading — FAQ

What is the latest insider trade for RUBI?
Rubico Inc. (RUBI) had 1 insider filings in the last 90 days, with the most recent on 2026-06-16. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying RUBI stock?
0 insider purchases of RUBI were filed in the last 90 days.
How many insiders are selling RUBI stock?
0 insider sales of RUBI were filed in the last 90 days.
Where can I see RUBI SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every RUBI SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live RUBI dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.