TEN SEC Filing News — Tsakos Energy Navigation Limited

Latest SEC filings for Tsakos Energy Navigation Limited (TEN) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-14.

Tsakos Energy Navigation Limited, together with its subsidiaries, provides seaborne crude oil and petroleum product transportation services in Greece and internationally. The company owns and operates various vessels, including VLCC, Suezmax, Aframax, Panamax, Handysize, MR, LNG carrier, and shuttle DP2 tankers. It also provides marine transportation services for national, major, and other independent oil companies and refiners. The company was formerly known as MIF Limited and changed its name …
Sector: Energy Industry: Oil & Gas Midstream Market Cap: $1.6B CIK: 1166663
10
Total Filings
1
Bullish Classifications
4
Bearish Classifications
6
Insider Transactions
0
Material Events (8-K)
0
Periodic Reports
Rule-based classifications for TEN currently lean bearish. Of the 10 filing records displayed, 4 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 1 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
TEN Filing Activity Snapshot 2026-04-30 — 2026-10-14
Insider Transactions (Form 4)
1 buy vs 4 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$998.3K
TSAKOS NIKOLAOS (Director, Chief Executive Officer) · 2026-04-30
25,000 shares · Form 4
Form 144 Notices
4
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 6 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 6 filings in this group are Form 4s for Tsakos Energy Navigation Limited.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 6 insider filings shown, the breakdown is 4 open-market sale, 1 gift and 1 open-market purchase. 5 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×4
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Gift ×1
Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Open-market purchase ×1
The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.
Form 4 Open-market sale Insider Selling 2026-10-14

TEN insider Saroglou Georgios (Director, President and COO) sold 5,000 shares (~$266.0K)

Saroglou Georgios, listed as Director, President and COO at TSAKOS ENERGY NAVIGATION LTD, reported an open-market sale of 5,000 TEN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 5,000 $53.20 $266.0K
Filing: Form 4 (Insider Transaction) Insider: Saroglou Georgios (Director, President and COO) Shares: 5,000 Est. Value: $266.0K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-22

TEN insider Kosmatos Theoharrys Evgenios (CFO and CAO) sold 10,000 shares (~$530.0K)

Kosmatos Theoharrys Evgenios, listed as CFO and CAO at TSAKOS ENERGY NAVIGATION LTD, reported an open-market sale of 10,000 TEN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 10,000 $53.00 $530.0K
Filing: Form 4 (Insider Transaction) Insider: Kosmatos Theoharrys Evgenios (CFO and CAO) Shares: 10,000 Est. Value: $530.0K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-17

TEN insider Hatzimichalis Clio (Director) sold 5,000 shares (~$205.3K)

Hatzimichalis Clio, listed as Director at TSAKOS ENERGY NAVIGATION LTD, reported an open-market sale of 5,000 TEN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 5,000 $41.07 $205.3K
Filing: Form 4 (Insider Transaction) Insider: Hatzimichalis Clio (Director) Shares: 5,000 Est. Value: $205.3K
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-07-16

TEN insider Tommasino Nicholas Francis (Director) sold 2,490 shares (~$99.8K)

Tommasino Nicholas Francis, listed as Director at TSAKOS ENERGY NAVIGATION LTD, reported an open-market sale of 2,490 TEN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 2,490 $40.06 $99.8K
Filing: Form 4 (Insider Transaction) Insider: Tommasino Nicholas Francis (Director) Shares: 2,490 Est. Value: $99.8K
View on SEC EDGAR → Open Filing Document →
Form 4 Gift Tax / Compensation Filing 2026-07-10

TEN insider Form 4 filed for equity award, exercise, or tax withholding

TSAKOS NIKOLAOS (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code Nature Shares Price Value
G Gift 500,000 — —
G Gift 500,000 — —
Filing: Form 4 (Insider Transaction) Insider: TSAKOS NIKOLAOS (Director, Chief Executive Officer) Shares: 1,000,000
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market purchase Insider Buying 2026-04-30

TEN insider TSAKOS NIKOLAOS (Director, Chief Executive Officer) bought 25,000 shares (~$998.3K)

TSAKOS NIKOLAOS, listed as Director, Chief Executive Officer at TSAKOS ENERGY NAVIGATION LTD, reported an open-market purchase of 25,000 TEN shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code Nature Shares Price Value
P Open-market purchase 12,500 $39.92 $499.0K
P Open-market purchase 12,500 $39.95 $499.4K
Filing: Form 4 (Insider Transaction) Insider: TSAKOS NIKOLAOS (Director, Chief Executive Officer) Shares: 25,000 Est. Value: $998.3K
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 4 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Tsakos Energy Navigation Limited has 4 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-10-13

TEN Form 144 filed for proposed insider sale by Saroglou Georgios (5,000 shares) ~$266.0K

Saroglou Georgios filed a Form 144 with the SEC indicating intent to sell TEN (TSAKOS ENERGY NAVIGATION LTD) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Saroglou Georgios Shares: 5,000 Est. Value: $266.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-18

TEN Form 144 filed for proposed insider sale by Kosmatos Theoharrys Evgenios (5,000 shares) ~$530.0K

Kosmatos Theoharrys Evgenios filed a Form 144 with the SEC indicating intent to sell TEN (TSAKOS ENERGY NAVIGATION LTD) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Kosmatos Theoharrys Evgenios Shares: 5,000 Est. Value: $530.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-14

TEN Form 144 filed for proposed insider sale by Hatzimichalis Clio (5,000 shares) ~$205.3K

Hatzimichalis Clio filed a Form 144 with the SEC indicating intent to sell TEN (TSAKOS ENERGY NAVIGATION LTD) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Hatzimichalis Clio Shares: 5,000 Est. Value: $205.3K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-07-14

TEN Form 144 filed for proposed insider sale by Tommasino Nicholas Francis (2,490 shares) ~$99.8K

Tommasino Nicholas Francis filed a Form 144 with the SEC indicating intent to sell TEN (TSAKOS ENERGY NAVIGATION LTD) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Tommasino Nicholas Francis Shares: 2,490 Est. Value: $99.8K
View on SEC EDGAR → Open Filing Document →

How we classify Tsakos Energy Navigation Limited's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on TEN. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — TEN SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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