Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

TSAKOS ENERGY NAVIGATION LTD

TEN · NYSE · CIK 0001166663 · Industrials · Oil & Gas Midstream

INSIDER SIGNAL

No active buy signal

2 qualifying P purchase groups
in the current 180-day scoring window

7 Form 4 transaction lines observed in the same window
4 sales · 1 option, withholding, award, gift or other lines

Last qualifying purchase2026-04-29 · TSAKOS NIKOLAOS · $499.4K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying2 qualifying line group(s)
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
TSAKOS NIKOLAOSChief Executive Officer
●●○
Kosmatos Theoharrys EvgeniosCFO and CAO
▼
Hatzimichalis ClioDirector
▼
Tommasino Nicholas FrancisDirector
▼
Saroglou GeorgiosPresident and COO
▼
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: TSAKOS NIKOLAOS · $998.4K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-04-28–2026-04-29

Roles in the peak window: Chief Executive Officer. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

31.6 / 100

Latest recorded score

→ +0.0 ptsversus the previous recorded snapshot
  1. 38.6
  2. 31.6
  3. 31.6
  4. 31.6

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

2Purchases
4Sales
1Other Form 4 lines
6SEC filings · 365 days
BUYING2 qualifying P line(s) · 180 days
SELLING4 sale line(s) · context only
OTHER1 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+15.0%
3M
+32.4%
6M
+31.8%
12M
+141.8%

Volatility & liquidity

Volatility
41.4%
Beta
—
Avg daily value
USD 17.5M

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
20.1%
ROE
8.8%
Industry
Oil & Gas Midstream

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Profit margin, ROE · Fiscal year ended: 2025-12-31 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
291,215
Previous report
286,599
Avg daily volume
564,979
Days to cover
≤ 1.0

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-04-29TSAKOS NIKOLAOSPurchase (P)Common Shares12,500USD 39.95USD 499,375SEC filing ↗
2026-04-28TSAKOS NIKOLAOSPurchase (P)Common Shares12,500USD 39.92USD 499,000SEC filing ↗

Form 4 evidence

7 transaction lines in the latest 365-day window; 7 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-12Saroglou GeorgiosSale (S)Common Shares5,000USD 53.20USD 266,000SEC filing ↗
2026-09-18Kosmatos Theoharrys EvgeniosSale (S)Common Shares10,000USD 53.00USD 530,000SEC filing ↗
2026-08-13Hatzimichalis ClioSale (S)Common Shares5,000USD 41.07USD 205,350SEC filing ↗
Show recent Form 4 evidence (7 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-12Saroglou GeorgiosSale (S)Common Shares5,000USD 53.20USD 266,000SEC filing ↗
2026-09-18Kosmatos Theoharrys EvgeniosSale (S)Common Shares10,000USD 53.00USD 530,000SEC filing ↗
2026-08-13Hatzimichalis ClioSale (S)Common Shares5,000USD 41.07USD 205,350SEC filing ↗
2026-07-14Tommasino Nicholas FrancisSale (S)Common Shares2,490USD 40.07USD 99,774SEC filing ↗
2026-07-08TSAKOS NIKOLAOSGift (G)Common Shares500,000USD 0.00USD 0SEC filing ↗
2026-04-29TSAKOS NIKOLAOSPurchase (P)Common Shares12,500USD 39.95USD 499,375SEC filing ↗
2026-04-28TSAKOS NIKOLAOSPurchase (P)Common Shares12,500USD 39.92USD 499,000SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerTEN
CIK0001166663
SectorIndustrials
IndustryOil & Gas Midstream Yahoo Finance
SEC SIC4412 Deep Sea Foreign Transportation of Freight
ExchangeNYSE

Data coverage

Local Form 4 history7 transaction lines from 2026-04-28 to 2026-10-12
2 P purchase lines · 4 S sale lines · 1 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.