Okeanis Eco Tankers Corp.
Okeanis Eco Tankers Corp. (ECO) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ECO · as of Mar 31, 2025
Ownership Breakdown
31
Institutional Holders
▼ 3 vs Q4
$78.14M
Total Inst. Value
▲ $1.51M vs Q4
32.69M
Shares Outstanding
freeFloat 60.08%
3.67M
13F Shares Held
▼ 144,860 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ECO largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
QVT FINANCIAL LP deep sea foreign transportation of freight | 1.42M | 4.42% | 4.42% | $28.32B | May 15, 2025 | — held |
FIL LTD deep sea foreign transportation of freight | 490.1K | 1.52% | 1.52% | $10.77B | May 12, 2025 | ▼ 121.9K |
VR ADVISORY SERVICES LTD deep sea foreign transportation of freight | 350.1K | 1.09% | 1.09% | $7.71B | May 15, 2025 | — held |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP deep sea foreign transportation of freight | 230.2K | 71.50% | 71.50% | $5.08B | May 14, 2025 | ▼ 277.3K |
SG AMERICAS SECURITIES, LLC deep sea foreign transportation of freight | 202.1K | 62.77% | 62.77% | $4.47B | Apr 15, 2025 | NEW |
GOLDMAN SACHS GROUP INC deep sea foreign transportation of freight | 150.6K | 46.77% | 46.77% | $3.33B | Jun 27, 2025 | ▲ 54.5K |
SEMMAX FINANCIAL ADVISORS INC. deep sea foreign transportation of freight | 122.5K | 38.06% | 38.06% | $2.91B | May 16, 2025 | ▲ 83.1K |
BOOTHBAY FUND MANAGEMENT, LLC deep sea foreign transportation of freight | 115.4K | 35.84% | 35.84% | $2.54B | May 15, 2025 | ▲ 89.4K |
UBS GROUP AG deep sea foreign transportation of freight | 88.7K | 27.54% | 27.54% | $1.96B | May 13, 2025 | ▼ 17.6K |
MAREX GROUP PLC deep sea foreign transportation of freight | 77.6K | 24.10% | 24.10% | $1.71B | Apr 2, 2026 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
10
Increased
+303.0K shares7
New Positions
first time holders10
Decreased
−630.6K shares9
Sold Out
fully exitedNet shares change (top 50)
327.6K
+303.0K / −630.6K
Net new holders
-2
7 new / 9 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ECO insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
No recent insider transactions reported.
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Okeanis Eco Tankers Corp. (ECO) is primarily owned by institutional investors, who hold approximately 11.2% of total shares outstanding. Company insiders own approximately 39.92%, while retail and public investors account for the remaining 48.85%.
The largest institutional shareholder of Okeanis Eco Tankers Corp. is QVT FINANCIAL LP, holding approximately 1.42 million shares — equal to 4.42% of outstanding shares — as of March 31, 2025.
A total of 31 institutional investors currently hold ECO stock, with a combined institutional value of approximately $78,143,097 as of the most recent 13F filing period.
Frequently asked questions
ECO ownershipOkeanis Eco Tankers Corp. (ECO) is primarily owned by institutional investors, who hold approximately 11.2% of shares. The largest shareholder is QVT FINANCIAL LP with a 4.42% stake. Company insiders hold 39.92%. Data sourced from SEC Form 13F as of March 31, 2025.