CASTOR MARITIME INC

Ticker: CTRM CUSIP: Y1146L208 Class: SHS

Holders for Q4 2025 Position Changes for Q4 2025

Note: Option positions (PUT/CALL) are excluded.

New Positions (8)

TWO SIGMA SECURITIES, LLC
Value ($000) $36 Shares 17,297
CITADEL ADVISORS LLC
Value ($000) $152 Shares 73,357
JANE STREET GROUP, LLC
Value ($000) $37 Shares 17,898
Tower Research Capital LLC (TRC)
Value ($000) $0 Shares 122
Virtu Financial LLC
Value ($000) $0 Shares 11,852
JONES FINANCIAL COMPANIES LLLP
Value ($000) $0 Shares 6
Navalign, LLC
Value ($000) $0 Shares 1
Russell Investments Group, Ltd.
Value ($000) $0 Shares 1

Increased Positions (3)

SUSQUEHANNA INTERNATIONAL GROUP, LLP
Value ($000) $75 (+136.4%) Shares 36,418 (+137.5%)
UBS Group AG
Value ($000) $2 (+1337.7%) Shares 736 (+1343.1%)
GROUP ONE TRADING, L.P.
Value ($000) $6 (+3.4%) Shares 2,691 (+3.9%)

Decreased Positions (3)

MORGAN STANLEY
Value ($000) $1 (-97.2%) Shares 259 (-97.1%)
SIMPLEX TRADING, LLC
Value ($000) $5 (+19439.3%) Shares 2,643 (-80.4%)
RENAISSANCE TECHNOLOGIES LLC
Value ($000) $84 (-5.4%) Shares 40,569 (-4.9%)

Exited Positions (3)

Founders Capital Management
Value ($000) $6 Shares 2,800
Larson Financial Group LLC
Value ($000) $0 Shares 240
Strategic Investment Solutions, Inc. /IL
Value ($000) $0 Shares 20