Okeanis Eco Tankers ECO Institutional Ownership

NYSE ECO

$91.27 +3.08 (+3.49%)

As of: Oct 21, 2026 · 3:59 PM EDT

Institutions by Trading Activity

116 Institutions

Increased 75 64.7%

Unchanged 12 10.3%

Reduced 29 25.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

29.89%

▲+0.70 pp QoQ

Shares Held by Institutions

9.74Mn

of 32.58Mn outstanding

▲+2.38% QoQ

Shares Outstanding

32.58Mn

22.84Mn held outside 13F filers

Institutional Investors

116

filed 13F for Jun 2026

▲+23 vs prior quarter

Net Shares Added (QoQ)

+226.78K

accumulated since last quarter

Value of Holdings

$858.98Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 5, 2026

Okeanis Eco Tankers Corp. (NYSE:ECO) was reported as a holding by 116 institutional investors in 13F filings for the quarter ended June 30, 2026.

Collectively, these holders controlled 29.89% of Okeanis Eco Tankers' outstanding shares in Q2 2026, up from 29.20% in Q1 2026.
Total holdings of ECO shares rose 2.38% from Q1 2026, and the holder count rose 329.63% from Q2 2025.
Among the 116 holders of Okeanis Eco Tankers, 75 added to their positions, 29 reduced their stakes and 12 left their positions unchanged.
Institutional investors held 9.74Mn shares of Okeanis Eco Tankers in total at the end of Q2 2026, up 226.78K from the prior quarter and up 6.19Mn from a year earlier.
As of June 30, 2026, QVT Financial LP held the largest stake in Okeanis Eco Tankers with 1.42Mn shares, or 4.37% of shares outstanding.
Holders that added the most shares of Okeanis Eco Tankers in Q2 2026 were Barclays PLC (+307.7K shares), Qube Research & Technologies Ltd (+226.34K shares), Two Sigma Investments, LP (+222.67K shares), FIL Ltd (+205.22K shares) and Jane Street Group, LLC (+162.11K shares).
Among holders that kept a stake in Okeanis Eco Tankers, the biggest sellers in Q2 2026 were Portolan Capital Management, LLC (-342.86K shares), BlackRock, Inc. (-233.65K shares), Bank of America Corp (-206.28K shares), Encompass Capital Advisors LLC (-155.24K shares) and Fearnley Asset Management As (-124.56K shares).
Business Quant data shows the 10 biggest positions in Okeanis Eco Tankers as of Q2 2026 were held by QVT Financial LP (1.42Mn shares), FIL Ltd (829.4K shares), Barclays PLC (577.7K shares), Marshall Wace, LLP (565.64K shares), Two Sigma Investments, LP (527.04K shares), Jane Street Group, LLC (488.41K shares), Goldman Sachs Group Inc (423.69K shares), Qube Research & Technologies Ltd (399.12K shares), VR Advisory Services Ltd (343.73K shares) and Acadian Asset Management LLC (290.84K shares).

Form 13F Holdings

116 Institutional Holders

Report period 30 Jun, 2026

Total shares held 9.74Mn

Of outstanding 29.89%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	QVT Financial LP	0001290162	1,423,997	4.37%	0	0.00%	$64.23Mn
2	FIL Ltd	0000318989	829,399	2.55%	▲205,215	+32.88%	$41.11Mn
3	Barclays Plc	0000312069	577,701	1.77%	▲307,700	+113.96%	$28.95Mn
4	MARSHALL WACE, LLP	0001318757	565,642	1.74%	▲73,624	+14.96%	$28.35Mn
5	TWO SIGMA INVESTMENTS, LP	0001179392	527,038	1.62%	▲222,666	+73.16%	$26.42Mn
6	JANE STREET GROUP, LLC	0001595888	488,409	1.50%	▲162,109	+49.68%	$24.12Mn
7	Goldman Sachs Group Inc	0000886982	423,692	1.30%	▲81,261	+23.73%	$21.24Mn
8	Qube Research & Technologies Ltd	0001729829	399,124	1.23%	▲226,338	+130.99%	$20.00Mn
9	VR Advisory Services Ltd	0001348145	343,729	1.06%	0	0.00%	$17.23Mn
10	ACADIAN ASSET MANAGEMENT LLC	0000916542	290,839	0.89%	▼76,414	-20.81%	$14.36K
11	Jpmorgan Chase & Co	0000019617	284,695	0.87%	▼25,875	-8.33%	$14.12Mn
12	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	260,310	0.80%	▲101,689	+64.11%	$13.01Mn
13	Encompass Capital Advisors LLC	0001541901	222,197	0.68%	▼155,235	-41.13%	$11.14Mn
14	Portolan Capital Management, LLC	0001350290	195,997	0.60%	▼342,863	-63.63%	$9.82Mn
15	Morgan Stanley	0000895421	193,694	0.59%	▲134,836	+229.09%	$9.71Mn
16	MILLENNIUM MANAGEMENT LLC	0001273087	159,952	0.49%	▲68,712	+75.31%	$8.02Mn
17	VOLORIDGE INVESTMENT MANAGEMENT, LLC	0001556921	159,581	0.49%	▼18,552	-10.41%	$8.00Mn
18	THOMIST CAPITAL MANAGEMENT, LP	0001767809	133,922	0.41%	▲78,822	+143.05%	$6.71Mn
19	BNP PARIBAS FINANCIAL MARKETS	0001166588	119,363	0.37%	▲20,401	+20.61%	$5.98Mn
20	FEARNLEY ASSET MANAGEMENT AS	0002056821	111,836	0.34%	▼124,558	-52.69%	$5.52Mn

Showing 1 to 20 of 116 holders