$TEN

$55.19 +$1.71 (3.2%) Close

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

Ownership

13F as of Q2 2026 · 30.1M shares outstanding

Who owns TEN?

By type of holder

Institutions 32.3% Insiders 17.4% Everyone else 50.3%

Concentration Top 10 holders own 66.9%

Nikolas P. Tsakos 16.7% · Panayotis Tsakos 12.8%

Institutional ownership

32.3%

+0.4 pts vs last qtr

Institutional holders

109

0 vs last qtr

Net shares bought

+130.0K

by institutions in Q2 2026

New / sold out

26 / 26

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Acadian Asset Management LLC +401.4K
Two Sigma Investments, LP +337.4K

Biggest sellers in Q2 2026

Cooper Creek Partners Management LLC SOLD OUT −397.6K
Walleye Capital LLC −266.5K

Who is planning to sell?

Notices of proposed sale, last 12 months

$1.1M

4 notices from 4 people

Shares covered

22.5K

0.07% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Kosmatos Theoharrys Evgenios Cfo and cao $530K
Saroglou Georgios President and coo $266K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2009–FY2025

+299.7%

+16.64% a year

Each share's claim on the business

−75.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$4.06M vs $3.71M

over 10 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+ years13% 3–5 years21% 1–3 years46% Under 1 year20%

Quarterly turnover

20.1%

of institutional shares changed hands

Top 10 managers, median time held

3.8 years

Super Investors

Investment managers reporting TEN on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AA Acadian Asset Management LLC	1.0M	3.39%	+401.4K (+64.7%)	2025	0.0%
Shares held by quarter Peak holding1.0M (Q2'26) Change over 8 quarters+1.0M Share of the company3.390% Acadian Asset Management LLC's full portfolio →
AC Arrowstreet Capital, Limited Partnership	765.1K	2.54%	−48.7K (−6.0%)	2022	0.0%
Shares held by quarter Peak holding906.9K (Q4'24) Change over 8 quarters+189.5K Share of the company2.540% Arrowstreet Capital, Limited Partnership's full portfolio →

Acadian Asset Management LLC

1.0M

% of company

3.39%

Change vs last qtr

+401.4K (+64.7%)

Held since

2025

Arrowstreet Capital, Limited Partnership

765.1K

% of company

2.54%

Change vs last qtr

−48.7K (−6.0%)

Held since

2022

28 more super investors behind a free account

See every manager holding Tsakos Energy Navigation Ltd, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting TEN on Form N-PORT; together they hold 2.5% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
GX Global X SuperDividend U.S. ETF Global X Funds	$21.7M	541.6K	1.80%	2.77%	July 31, 2026
GX Global X MSCI Greece ETF Global X Funds	$4.22M	105.1K	0.35%	1.34%	July 31, 2026

Global X SuperDividend U.S. ETF

Global X Funds

Position value

$21.7M

% of company

1.80%

% of the fund

2.77%

As of

July 31, 2026

Global X MSCI Greece ETF

Global X Funds

Position value

$4.22M

% of company

0.35%

% of the fund

1.34%

As of

July 31, 2026

4 more funds behind a free account

See every fund holding Tsakos Energy Navigation Ltd and how much of the fund the position is.

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
NP Nikolas P. Tsakos 5%+ holder 13D · 16.7%	5.0M	16.68%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company16.680% Disclosed stake13D · 16.7% View the 13D/G filing →
PT Panayotis Tsakos 5%+ holder 13D · 12.8%	3.9M	12.84%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company12.840% Disclosed stake13D · 12.8% View the 13D/G filing →

Nikolas P. Tsakos

5%+ holder13D · 16.7%

5.0M

% of company

16.68%

Change vs last qtr

—

Held since

—

Panayotis Tsakos

5%+ holder13D · 12.8%

3.9M

% of company

12.84%

Change vs last qtr

—

Held since

—

15 more holders behind a free account

See every insider and 5%+ holder of Tsakos Energy Navigation Ltd.

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