$CTRM

$1.57 -$0.03 (1.88%) Close

$CTRM Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 9.7M shares outstanding

Who owns CTRM?

By type of holder

Institutions 4.3% Insiders 0.1% Everyone else 95.6%

Concentration Top 10 holders own 4.4%

Towerview LLC 2.5% · Renaissance Technologies LLC 0.7%

Institutional ownership

4.3%

+0.5 pts vs last qtr

Institutional holders

+5 vs last qtr

Net shares bought

+43.4K

by institutions in Q2 2026

New / sold out

7 / 2

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Citadel Advisors LLC NEW +26.1K
NewEdge Advisors, LLC NEW +21.9K

Biggest sellers in Q2 2026

Renaissance Technologies LLC −9.1K
UBS Group AG SOLD OUT −2.2K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Castor Maritime Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+144.4%

+56.33% a year

Each share's claim on the business

−59.1%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $252K

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years16% 3–5 years0% 1–3 years69% Under 1 year15%

Quarterly turnover

8.8%

of institutional shares changed hands

Top 10 managers, median time held

1.3 years

Super Investors

Investment managers reporting CTRM on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
T Towerview LLC	240.0K	2.48%	Unchanged	2024	0.3%
Shares held by quarter Peak holding240.0K (Q4'24) Change over 8 quarters+227.5K Share of the company2.480% Towerview LLC's full portfolio →
RT Renaissance Technologies LLC	64.8K	0.67%	−9.1K (−12.3%)	≤2021	0.0%
Shares held by quarter Peak holding73.9K (Q1'26) Change over 8 quarters+28.4K Share of the company0.670% Renaissance Technologies LLC's full portfolio →

Towerview LLC

240.0K

% of company

2.48%

Change vs last qtr

Unchanged

Held since

2024

Renaissance Technologies LLC

64.8K

% of company

0.67%

Change vs last qtr

−9.1K (−12.3%)

Held since

≤2021

24 more super investors behind a free account

See every manager holding Castor Maritime Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting CTRM on Form N-PORT; together they hold 2.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IF Invesco FTSE RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust	$113K	231.1K	2.39%	0.01%	January 31, 2024

Invesco FTSE RAFI US 1500 Small-Mid ETF

Invesco Exchange-Traded Fund Trust

Position value

$113K

% of company

2.39%

% of the fund

0.01%

As of

January 31, 2024

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
PP Panagiotidis Petros Panagiotis Insider	11.2K	0.12%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.120% Panagiotidis Petros Panagiotis's insider activity →

Panagiotidis Petros Panagiotis

Insider

11.2K

% of company

0.12%

Change vs last qtr

—

Held since

—

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