CASTOR MARITIME INC

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CTRM·Y1146L208·US·Common Stock·Industrials - Marine Shipping

CTRM (CASTOR MARITIME INC) is held by 11 institutional investors as of Q1 2026. Largest holders: RENAISSANCE TECHNOLOGIES LLC ($136,658), GOLDMAN SACHS GROUP INC ($39,000), Centiva Capital, LP ($20,515). Net institutional sentiment: Mixed.

13F: Mar 31, 2026Insider & Congress: Updated regularly

Positions (11)History

AllNewIncreasedHeldDecreasedExited

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
RENAISSANCE TECHNOLOGIES LLC	Increased	73,869(+82.1%)	$136,658	0.0%	-59.24%	34
GOLDMAN SACHS GROUP INC	Decreased	21,081(-27.1%)	$39,000	0.0%	-17.78%	0
Centiva Capital, LP	New	11,089	$20,515	0.0%	-3.15%	26
SIMPLEX TRADING, LLC	Increased	5,878(+122.4%)	$10,874	0.0%	-5.24%	19
UBS Group AG	Increased	2,227(+202.6%)	$4,120	0.0%	-0.93%	16
GROUP ONE TRADING LLC	Decreased	671(-75.1%)	$1,241	0.0%	-7.88%	0
MORGAN STANLEY	Decreased	254(-1.9%)	$470	0.0%	-37.33%	0
Allworth Financial LP	Unchanged	20	$37	0.0%	0.00%	0
Farther Finance Advisors, LLC	New	15	$27	0.0%	-3.15%	17
Federation des caisses Desjardins du Quebec	Unchanged	10	$19	0.0%	0.00%	0
Russell Investments Group, Ltd.	Unchanged	1	$2	0.0%	+3.86%	0
CITADEL ADVISORS LLC	Exited	0(-100.0%)	$151,849	0.0%	+7.25%	0
JONES FINANCIAL COMPANIES LLLP	Exited	0(-100.0%)	$12	0.0%	+7.25%	0
Virtu Financial LLC	Exited	0(-100.0%)	$25,000	0.0%	+7.25%	0
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Exited	0(-100.0%)	$75,385	0.0%	-14.87%	0
JANE STREET GROUP, LLC	Exited	0(-100.0%)	$37,049	0.0%	+7.25%	0

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Data sourced from four SEC data sources: 13F, Form 4, 13D/13G, and STOCK Act. Not financial advice. Full disclaimer