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CTRM CASTOR MARITIME INC

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Stock (common), issuer CIK 1720161

18 managers (18 13F filers) reported a position in CTRM shares at 2025-06-30, 399,199 shares in all. 4 filers opened a position and 3 filers sold out during the quarter.

Managers
18
13F filers
18
New
4
Added
4
Reduced
2
Sold out
3
Shares held by filers
399,199

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
TOWERVIEW LLC240,000$513K0.37%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC40,669$87K<0.01%+1,00013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…40,435$85.3K<0.01%+13,57213F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC29,554$63.2K<0.01%+2,95413F-HRTimelineGroup
Apriem Advisors19,000$40.6K<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY12,466$26.7K<0.01%+5,67413F-HRTimelineGroup
SIMPLEX TRADING, LLC11,689$25K<0.01%-1,53413F-HRTimeline
Founders Capital Management2,800$5.99K<0.01%013F-HRTimeline
GROUP ONE TRADING LLC2,374$5.01K<0.01%-31713F-HRTimeline
SBI Securities Co., Ltd.117$250<0.01%013F-HRTimeline
Allworth Financial LP20$43<0.01%new13F-HRTimeline
WOLFF WIESE MAGANA LLC20$43<0.01%013F-HRTimeline
Strategic Investment Solutions, Inc. /IL20$43<0.01%013F-HRTimeline
Iron Horse Wealth Management, LLC11$24<0.01%new13F-HRTimeline
Parallel Advisors, LLC10$21<0.01%new13F-HRTimeline
Federation des caisses Desjardins du Qu…10$21<0.01%new13F-HRTimeline
Cape Investment Advisory, Inc.4$9<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.