Rubico Inc. (RUBI) Ownership

NASDAQ: RUBITop holders, insider trades and short interest.

RUBI ownership summary

as of October 18, 2026
Institutions
2.3%
of shares outstanding
Insiders
0.00%
of shares outstanding
Shares outstanding
2.7M
Float
907K
shares available to trade
Short interest
—
71K shares short
Days to cover
0.18
short interest up 74.9% vs prior month
  • Institutions 2.30%
  • Insiders 0.00%
  • Other investors 97.69%

RUBI top institutional holders

4 largest
Rubico Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Cable Car Capital LLC1.12%30K$11,730+30,000 (0.0%)June 30, 2026
2UBS Group AG0.31%8,211$3,211+8,211 (0.0%)June 30, 2026
3Royal Bank of Canada<0.01%78$30+78 (0.0%)June 30, 2026
4TUCKER ASSET MANAGEMENT LLC0.00%———June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 4, 3 holders added 38K shares and 0 cut 0.

RUBI top mutual fund and ETF holders

1 largest
Rubico Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Dimensional US Targeted Value ETF0.00%1$0—June 25, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

RUBI insider transactions

latest 20
Rubico Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-02-18Adam Lee SorocaSell$12.0021,529$258,348
2025-12-17Adam Lee SorocaSell$17.0016,656$283,152
2025-11-21Robert F SpillaneSell$14.2212,500$177,750
2025-11-18Adam Lee SorocaSell$13.2310,857$143,638
2025-11-18Sean Patrick BuckleySell$13.364,426$59,131
2025-10-24Paul CaineSell$20.005,000$100,000
2025-09-19Aaron SaltzSell$24.508,522$208,789
2025-09-19Paul CaineSell$25.007,500$187,500
2025-09-15Aaron SaltzSell$23.946,180$147,949
2025-09-10Paul CaineSell$23.605,000$118,000
2025-09-08Sean Patrick BuckleySell$25.5620,000$511,200
2025-09-04Brian GephartSell$24.7127,671$683,750
2025-09-03David BuonaseraSell$25.372,950$74,842
2025-09-02Adam Lee SorocaSell$24.6924,986$616,904
2025-08-29Aaron SaltzSell$26.0712,403$323,346
2025-08-27Katie Seitz EvansSell$25.5221,509$548,910
2025-08-26Diane YuSell$25.2320,000$504,600
2025-08-25Katie Seitz EvansSell$26.008,345$216,970
2025-08-25Paul CaineSell$25.007,500$187,500
2025-08-19Adam Lee SorocaSell$23.4710,579$248,289

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

RUBI shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns RUBI

Institutional investors own 2.3% of Rubico's shares and insiders 0.00%. The largest holder is Cable Car Capital LLC with 1.12% of the shares (30K), as of June 30, 2026. Among the top 4 institutions, 3 added shares and 0 reduced their stake in the latest filings. The share count fell 99.0% since 2014.

Related: RUBI key metrics. See the RUBI stock overview for the latest quote and news.

RUBI ownership FAQ

Who owns the most Rubico stock?

The largest shareholders of Rubico are Cable Car Capital LLC (1.12%), UBS Group AG (0.31%), Royal Bank of Canada (<0.01%), TUCKER ASSET MANAGEMENT LLC (0.00%).

What percentage of Rubico is owned by institutions?

Institutions hold 2.3% of Rubico's shares outstanding; insiders hold 0.00%.

Which funds own Rubico?

The largest fund holders of Rubico are Dimensional US Targeted Value ETF (0.00%).

Are insiders buying or selling Rubico?

Of the latest 20 reported insider transactions in Rubico (since August 19, 2025), 0 were purchases and 20 were sales.

How many shares of Rubico are outstanding?

Rubico has 2.7M shares outstanding, of which 907K are in the public float.

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