Security key
G9108L173
TSAKOS ENERGY NAVIGATION LTD - Common Shares, par value $5.00 per share (TEN)
CUSIP: G9108L173
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Shares, par value $5.00 per share
- Total 13F shares
- 9,928,456
- Total 13F value
- $391,462,470
- Share change
- +2,221,326
- Put/Call ratio
- 73%
- SEC-reported price per share
- $39.46
- Number of holders
- 110
- Value change
- +$94,704,315
- Number of buys
- 74
- Number of sells
- 37
- Shares outstanding
- 30,015,805
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
110
Top holders
10
TEN full security history
Ownership snapshot
Full 13F holder table
TSAKOS ENERGY NAVIGATION LTD SEC filings
TSAKOS ENERGY NAVIGATION LTD company facts
Broader feeds
Ownership snapshot
Top reported holders of TEN - TSAKOS ENERGY NAVIGATION LTD - Common Shares, par value $5.00 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
SEA CONSOLIDATION S A OF ...
Disclosed value leader
SEA CONSOLIDATION S A OF ...
Comparable rows
15/15
Latest evidence
18 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 17%
13D/G row: SEA CONSOLIDATION S A OF PANAMA
Showing 1-6 of 15 holder rows.
Quick read
SEA CONSOLIDATION S A OF PANAMA leads the comparable SEC ownership view at 17%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens SEA CONSOLIDATION S A OF PANAMA's linked filing trail.
Comparable ownership
Top 5
SEA CONSOLIDATION S A OF PANAMA
17%
TSAKOS HOLDINGS FOUNDATION
11%
CastleKnight Master Fund LP
4.1%
Aristides Athanassios Nicholas Pa...
0.11%
Michael Jolliffe
0.06%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SEA CONSOLIDATION S A OF PANAMA |
13D/G
NIKOLAS P. TSAKOS
|
17%
|
$84,801,778
5,023,802 shares
|
$0 | 27 Nov 2024 |
| TSAKOS HOLDINGS FOUNDATION |
13D/G
|
11%
|
$54,404,291
3,223,003 shares
|
$0 | 16 May 2025 |
| CastleKnight Master Fund LP |
13D/G
|
4.1%
|
$30,876,958
1,230,648 shares
|
-$25,612,851 | 31 Dec 2025 |
| Aristides Athanassios Nicholas Patrinos |
3/4/5
Director
|
0.11%
|
$999,696
32,093 shares
|
— | 18 Mar 2026 |
| Michael Jolliffe |
3/4/5
Director
|
0.06%
|
$573,160
18,400 shares
|
— | 18 Mar 2026 |
| Efthimios Elias Mitropoulos |
3/4/5
Director
|
0.05%
|
$485,940
15,600 shares
|
— | 18 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
110
Shares
9,928,456
Rows available
110
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
110
Q1 2026 holders
110
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|