$USEA

$2.51 +$0.05 (2.03%) Close

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

Ownership

13F as of Q2 2026 · 8.9M shares outstanding

Who owns USEA?

By type of holder

Institutions 6.9% Insiders 0.0% Everyone else 93.2%

Concentration Top 10 holders own 22.5%

Tsantanis Stamatios 15.7% · Renaissance Technologies LLC 2.5%

Institutional ownership

6.9%

-0.3 pts vs last qtr

Institutional holders

-5 vs last qtr

Net shares bought

−30.7K

by institutions in Q2 2026

New / sold out

0 / 5

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

NewEdge Advisors, LLC +54.8K
UBS Group AG +8.5K

Biggest sellers in Q2 2026

Jane Street Group, LLC SOLD OUT −28.1K
Citadel Advisors LLC SOLD OUT −26.1K

Who is planning to sell?

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

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+6.1%

+2.99% a year

Each share's claim on the business

−5.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$1.35M vs $3.78M

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+ years0% 3–5 years0% 1–3 years3% Under 1 year96%

Quarterly turnover

12.3%

of institutional shares changed hands

Top 10 managers, median time held

2 quarters

Super Investors

Investment managers reporting USEA on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
RT Renaissance Technologies LLC	222.6K	2.51%	−10.0K (−4.3%)	Q3 '25	0.0%
Shares held by quarter Peak holding232.5K (Q1'26) Change over 8 quarters+83.8K Share of the company2.510% Renaissance Technologies LLC's full portfolio →
UG UBS Group AG	88.4K	1.00%	+8.5K (+10.6%)	Q1 '26	0.0%
Shares held by quarter Peak holding88.4K (Q2'26) Change over 8 quarters+88.4K Share of the company1.000% UBS Group AG's full portfolio →

Renaissance Technologies LLC

222.6K

% of company

2.51%

Change vs last qtr

−10.0K (−4.3%)

Held since

Q3 '25

UBS Group AG

88.4K

% of company

1.00%

Change vs last qtr

+8.5K (+10.6%)

Held since

Q1 '26

17 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting USEA on Form N-PORT; together they hold 0.0% of the company

No fund reports holding USEA yet.

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
TS Tsantanis Stamatios 5%+ holder 13D · 14.6%	1.4M	15.73%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company15.730% Disclosed stake13D · 14.6% View the 13D/G filing →

Tsantanis Stamatios

5%+ holder13D · 14.6%

1.4M

% of company

15.73%

Change vs last qtr

—

Held since

—

Comments