Castor MaritimeCTRM

13F holders, Q2 2026 (June 30)
25holders +6
8new positions
2sold out
2famous investors
$2.10avg. 13F price*

At the end of Q2 2026, 25 institutions reported holding Castor Maritime Inc. (CTRM) in their 13F filings, up 6 from Q1 2026. 8 opened new positions and 2 sold out. The largest holders were Towerview LLC ($504K), Renaissance Technologies ($136K) and Citadel Advisors ($54K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Castor Maritime Inc.
CUSIP
Y1146L208
Latest filing quarter
Q2 2026

History

Number of 13F holders

0510152025 Q1 2024: 20Q1 2024Q2 2024: 22Q2 2024Q3 2024: 22Q3 2024Q4 2024: 17Q4 2024Q1 2025: 16Q1 2025Q2 2025: 17Q2 2025Q3 2025: 18Q3 2025Q4 2025: 25Q4 2025Q1 2026: 19Q1 2026Q2 2026: 25Q2 2026

Total Exit/New Position Q1 2026 → Q2 2026

InstitutionsTotal Value
New Positions8$133K
Exits2$4K

All 13F filers, Q1 2026 → Q2 2026: 67,304 shares bought and 11,394 shares sold, net +55,910 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 25 holders

Towerview LLC 0.33% No change 240,000 $504K
Renaissance Technologies 0.00% Reduce -12.3% 64,817 $136K
Citadel Advisors 0.00% New 26,060 $54K
NewEdge Advisors, LLC 0.00% New 21,912 $46K
Goldman Sachs Group Inc. 0.00% Add +0.6% 21,202 $45K
Apriem Advisors 0.00% No change 19,000 $40K
Susquehanna International Group, LLP 0.00% New 12,558 $26K
Centiva Capital, LP 0.00% Add +10.4% 12,248 $26K
Simplex Trading, LLC 0.00% Add +44.8% 8,510 $18K
TD Waterhouse Canada Inc. 0.00% New 2,800 $6K
Group One Trading LLC 0.00% Reduce -14.9% 571 $1K
Morgan Stanley 0.00% No change 254 $533
SBI Securities Co., Ltd. 0.00% No change 101 $212
Jones Financial Companies LLLP 0.00% New 25 $53
Allworth Financial LP 0.00% No change 20 $42
Osaic Holdings, Inc. 0.00% New 20 $42
Wolff Wiese Magana LLC 0.00% No change 20 $42
Caitong International Asset Management Co., Ltd 0.00% Add +300.0% 16 $34
Farther Finance Advisors, LLC 0.00% No change 15 $32
Parallel Advisors, LLC 0.00% No change 10 $21
Federation des caisses Desjardins du Quebec 0.00% No change 10 $21
Gill Capital Partners, LLC 0.00% No change 6 $13
Cape Investment Advisory, Inc. 0.00% New 4 $8
Russell Investments Group, Ltd. 0.00% No change 1 $2
Steward Partners Investment Advisory, LLC 0.00% New 1 $2

"% of holder's portfolio" is CTRM's weight in each manager's 13F, not the share of Castor Maritime Inc. the manager owns.