Rubico Announces Record Date of Monday, September 28 and Ex-Dividend Date of Tuesday, October 6 for Previously-Announced 0.50 Common Shares Per Common Share Stock Dividend

Rubico announced the Nasdaq-determined ex-dividend date of October 6, 2026 for its previously announced stock dividend of 0.50 common shares per common share. The distribution occurs on or about October 5, 2026 to holders of record as of the close of business September 28, 2026, with due-bill trading in effect from the record date through the distribution date. No fractional shares will be issued; fractional entitlements will be paid in cash based on the September 28 closing price.

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