TEN CFO files initial Form 3 holdings

TSAKOS ENERGY NAVIGATION LTD executive Kosmatos Theoharrys Evgenios, the company’s CFO and CAO, filed an initial ownership report on Form 3.

Rhea-AI Filing Summary

TSAKOS ENERGY NAVIGATION LTD executive Kosmatos Theoharrys Evgenios, the company’s CFO and CAO, filed an initial ownership report on Form 3. He reports direct beneficial ownership of 24,700 Common Shares and 300 Series F Fixed to Floating Rate Cumulative Redeemable Perpetual Preferred Shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Kosmatos Theoharrys Evgenios

Role CFO and CAO

Type	Security	Shares	Price	Value
holding	Common Shares	--	--	--
holding	Series F Fixed to Fltg Rate Cum. Redeemable Perp. Pref. Shs	--	--	--

Holdings After Transaction: Common Shares — 24,700 shares (Direct); Series F Fixed to Fltg Rate Cum. Redeemable Perp. Pref. Shs — 300 shares (Direct)

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the TEN Form 3 filing by CFO Kosmatos show?

The Form 3 filing shows TEN’s CFO and CAO, Kosmatos Theoharrys Evgenios, reporting his initial beneficial ownership in company securities, including Common Shares and Series F preferred shares, as required for insiders when they first become subject to reporting obligations.

How many TEN common shares does CFO Kosmatos report on Form 3?

CFO Kosmatos reports direct beneficial ownership of 24,700 TEN Common Shares. This figure reflects his position as disclosed in the initial Form 3 and serves as a baseline for tracking any future reportable insider transactions in the company’s common equity.

What preferred shares are included in CFO Kosmatos’s TEN holdings?

He reports holding 300 shares of TEN’s Series F Fixed to Floating Rate Cumulative Redeemable Perpetual Preferred Shares. These are reported as directly owned and form part of his overall beneficial ownership position disclosed in the initial Form 3 filing.

Does the TEN Form 3 filing show any insider buying or selling?

No specific purchases or sales are reported in this Form 3. It functions as an initial statement of beneficial ownership, listing the securities and amounts held, rather than detailing new buy or sell transactions in TEN securities by the reporting person.

Why is TEN’s CFO required to file a Form 3?

As an officer of TEN, the CFO becomes a reporting insider under U.S. securities rules and must file Form 3. This filing discloses his initial holdings in the company’s securities, creating a public baseline for any subsequent Form 4 or Form 5 activity.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/18/2026 - 03:54 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Kosmatos Theoharrys Evgenios

(Last) (First) (Middle)

TSAKOS ENERGY NAVIGATION LIMITED

367 SYNGROU AVE P. FALIRO

(Street)

ATHENS GREECE 17564

(City) (State) (Zip)

GREECE

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
TSAKOS ENERGY NAVIGATION LTD [ TEN ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO and CAO

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Shares	24,700	D
Series F Fixed to Fltg Rate Cum. Redeemable Perp. Pref. Shs	300	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Theoharrys Evgenios Kosmatos	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)