Okeanis Eco Tankers ECO Institutional Ownership

NYSE ECO

$80.94 +0.63 (+0.78%)

At close: Sep 30, 2026 · 4:00 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

▲+8.87% 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)

+793.06K

accumulated since last quarter

Value of Holdings

$788.19Mn

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

Quarter ending 30 Jun, 2026

Okeanis Eco Tankers Corp. (NYSE:ECO) is held by 116 institutional investors per 13F filings through June 2026.

They owned 29.9% of outstanding stock in June 2026, up from 29.2% the prior quarter.
They increased total shares held in Okeanis Eco Tankers by 8.87% from last quarter, and the number of investors in ECO increased 314.29% annually.
Of these 116 funds, 75 grew their exposure to Okeanis Eco Tankers, 29 cut back, and 12 maintained positions.
Combined, these investors held 9.74Mn shares in ECO for June 2026, up by 793.06K shares quarter on quarter, and up 6.19Mn shares year over year.
QVT Financial LP holds the largest position in ECO at 1.42Mn shares as of June 30, 2026, or 4.37% of shares outstanding.
The largest buyers of Okeanis Eco Tankers for the quarter ending June 2026 were Barclays Plc (307.7K), Qube Research & Technologies Ltd (226.34K), TWO SIGMA INVESTMENTS, LP (222.67K), FIL Ltd (205.22K), JANE STREET GROUP, LLC (162.11K).
The largest sales of ECO for the quarter ending June 2026 came from Portolan Capital Management, LLC (342.86K), BlackRock, Inc. (233.65K), Bank Of America Corp /De/ (206.28K), Encompass Capital Advisors LLC (155.24K), FEARNLEY ASSET MANAGEMENT AS (124.56K).
Okeanis Eco Tankers's 10 largest shareholders as of June 2026 include QVT Financial LP (1.42Mn), FIL Ltd (829.4K), Barclays Plc (577.7K), MARSHALL WACE, LLP (565.64K), TWO SIGMA INVESTMENTS, LP (527.04K), JANE STREET GROUP, LLC (488.41K), Goldman Sachs Group Inc (423.69K), Qube Research & Technologies Ltd (399.12K), VR Advisory Services Ltd (343.73K), ACADIAN ASSET MANAGEMENT LLC (290.84K) per Business Quant data.

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