Tsakos Energy (NYSE: TEN) director sells 5,000 shares outside 10b5-1 plan

Rhea-AI Filing Summary

TSAKOS ENERGY NAVIGATION LTD (TEN) director Clio Hatzimichalis reported a sale of 5,000 Common Shares on 2026-08-13 in a sale in open market or private transaction at a price of $41.0662 per share. After this transaction, the reporting person directly owns 5,000 Common Shares. The filing’s Rule 10b5-1 checkbox was not marked as using a trading plan.

Insider Trade Summary

Net Seller: 5,000 shares

Net Sell 1 txn

Insider Hatzimichalis Clio

Role Director

Sold 5,000 shs ($205K)

Type	Security	Shares	Price	Value
Sale	Common Shares	5,000	$41.0662	$205K

Holdings After Transaction: Common Shares — 5,000 shares (Direct)

Key Figures

Shares sold: 5,000 Common Shares Sale price per share: $41.0662 Shares held after transaction: 5,000 Common Shares

3 metrics

Shares sold 5,000 Common Shares Non-derivative sale on 2026-08-13

Sale price per share $41.0662 Per-share price for 5,000 Common Shares sold on 2026-08-13

Shares held after transaction 5,000 Common Shares Direct ownership position following the reported sale

Key Terms

non-derivative, open market or private transaction, Rule 10b5-1

3 terms

non-derivative financial

"The transaction is categorized as a non-derivative sale"

open market or private transaction financial

"transaction code description notes a sale in open market or private transaction"

Rule 10b5-1 regulatory

"The Rule 10b5-1 trading plan checkbox was not marked"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What insider transaction did TEN director Clio Hatzimichalis report?

Clio Hatzimichalis reported selling 5,000 TEN Common Shares on 2026-08-13 in a sale classified as an open market or private transaction, at a reported price of $41.0662 per share.

At what price were the TSAKOS ENERGY NAVIGATION (TEN) shares sold in this Form 4?

The reported sale price was $41.0662 per TEN Common Share. This price is described as a per-share transaction price for the 5,000 shares sold on 2026-08-13.

How many TSAKOS ENERGY NAVIGATION (TEN) shares does Clio Hatzimichalis hold after the sale?

After the reported sale, Clio Hatzimichalis directly holds 5,000 TEN Common Shares. This post-transaction holding reflects the remaining directly owned shares disclosed in the Form 4 for 2026-08-13.

Was the TEN insider sale by Clio Hatzimichalis under a Rule 10b5-1 trading plan?

The filing indicates the Rule 10b5-1 trading plan checkbox was not marked. This means the reported 5,000-share sale on 2026-08-13 was not affirmed as executed under a pre-arranged 10b5-1 plan.

What is the total size of TEN shares sold in this Form 4 transaction?

The Form 4 reports that 5,000 TEN Common Shares were sold. The transaction is categorized as a non-derivative sale in an open market or private transaction, at a reported price of $41.0662 per share.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/17/2026 - 04:15 PM Accepted by SEC EDGAR 08/17/2026 - 04:15 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hatzimichalis Clio

(Last) (First) (Middle)

TSAKOS ENERGY NAVIGATION LIMITED

367 SYNGROU AVE P. FALIRO

(Street)

ATHENS GREECE 17564

(City) (State) (Zip)

GREECE

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Shares	08/13/2026		S		5,000	D	$41.0662	5,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Clio Hatzimichalis	08/17/2026
	** 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 4 (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 4: SEC 1474 (03-26)