Arena Investors LP - 06 Nov 2025 SCHEDULE 13G Report for Rubico Inc. Common Stock, $0.01 par value per share (RUBI)

Filing Manager
Arena Investors LP
Reporting Manager
Arena Investors, LP
Security
Rubico Inc. Common Stock, $0.01 par value per share
Symbol
RUBI
Shares outstanding
19,187,654 shares
Disclosed Ownership
1,554,200 shares
Ownership
8.1%
Form type
SCHEDULE 13G
Filing time
14 Nov 2025, 16:41:58 UTC
Date of event
06 Nov 2025
SEC
View on sec.gov

Reporting Managers (9)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Arena Investors, LP 8.1% 1,554,200 1,554,200 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Investors GP, LLC 8.1% 1,554,200 1,554,200 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Special Opportunities (Offshore) Master, LP 1.1% 208,726 208,726 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Special Opportunities Fund (Offshore) II GP, LP 1.1% 208,726 208,726 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Special Opportunities Fund (Offshore) GP, LLC 1.1% 208,726 208,726 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Special Opportunities Parallel Investor Vehicle III US, LP 4.7% 909,230 909,230 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Special Opportunities Parallel Investor Vehicle III GP, LLC 4.7% 909,230 909,230 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Special Opportunities Partners III, LP 2.3% 436,244 436,244 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory
Arena Special Opportunities Partners III GP, LLC 2.3% 436,244 436,244 0 /s/ Tsering Lama Tsering Lama / Authorized Signatory