Okeanis Eco Tankers Corp. (ECO) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

32,087,033Shares Outstanding

1,423,997Shares held by institutions

$60,818,912Value of institutional holdings

20.50%Institutional ownership %

126.55%Shares Changed QoQ

63No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

A total of 63 institutions have reported a stake in Okeanis Eco Tankers Corp. (NYSE:ECO) as of December 2025, according to recent 13F filings with the SEC.

Institutional ownership in Okeanis Eco Tankers edged up to 20.5% in December 2025, compared to 10.8% in September 2025.
In percentage terms, this reflects as a holdings change of 126.55% quarter on quarter, and an increase of 75.00% year over year.
The latest 13F cycle for Okeanis Eco Tankers reveals that of 63 total investors, 50 funds grew their exposure, whereas 12 reduced theirs and 1 made no changes.
This class of investors increased its holdings in Okeanis Eco Tankers to 6.58Mn shares for the 13F-cycle ending December 2025, up by 3.67Mn shares quarter on quarter, and up 2.76Mn shares year over year.
With 1.42Mn shares, QVT Financial LP commands the largest institutional position in Okeanis Eco Tankers as of December 31, 2025, equating to 4.44% of the company.
Among the most significant buyers of Okeanis Eco Tankers during December 2025 were Encompass Capital Advisors LLC (810.15K), MARSHALL WACE, LLP (322.42K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (279.34K), BlackRock, Inc. (204.40K), CITADEL ADVISORS LLC (192.92K).
Leading sellers of Okeanis Eco Tankers stock in December 2025 included VR Advisory Services Ltd (92.81K), CITIGROUP INC (53.38K), Lighthouse Investment Partners, LLC (22.89K), Triumph Capital Management (1.76K), DIMENSIONAL FUND ADVISORS LP (1.59K).
The top 10 institutional holders of Okeanis Eco Tankers for the quarter ending December 2025 included QVT Financial LP (1.42Mn), Encompass Capital Advisors LLC (810.15K), FIL Ltd (574.18K), MARSHALL WACE, LLP (322.42K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (292.78K), VR Advisory Services Ltd (257.28K), GOLDMAN SACHS GROUP INC (225.36K), BlackRock, Inc. (205.33K), CITADEL ADVISORS LLC (201.19K), Portolan Capital Management, LLC (161.81K).

63 Institutional Holders

1,423,997 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
QVT Financial LP	31 Dec, 2025	1,423,997	0	0.00%	$43,369,253.00
Encompass Capital Advisors LLC	31 Dec, 2025	810,154	810,154	0.00%	$27,415,611.00
FIL Ltd	31 Dec, 2025	574,182	84,130	17.17%	$19,338,883.00
MARSHALL WACE, LLP	31 Dec, 2025	322,423	322,423	0.00%	$10,910,794.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	292,782	279,338	2,077.79%	$9,882,894.00
VR Advisory Services Ltd	31 Dec, 2025	257,282	-92,806	-26.51%	$8,706,423.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	225,358	42,414	23.18%	$7,626,115.00
BlackRock, Inc.	31 Dec, 2025	205,327	204,402	22,097.51%	$6,948,265.00
CITADEL ADVISORS LLC	31 Dec, 2025	201,195	192,919	2,331.07%	$6,808,439.00
Portolan Capital Management, LLC	31 Dec, 2025	161,815	161,815	0.00%	$5,475,820.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	158,340	99,662	169.85%	$5,358,226.00
JPMORGAN CHASE & CO	31 Dec, 2025	154,325	154,325	0.00%	$5,222,358.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	141,523	137,121	3,114.97%	$4,789,138.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	124,109	107,505	647.46%	$4,199,849.00
Point72 Asset Management, L.P.	31 Dec, 2025	118,589	112,489	1,844.08%	$4,013,052.00
BARCLAYS PLC	31 Dec, 2025	111,143	102,643	1,207.56%	$3,761,077.00
Walleye Capital LLC	31 Dec, 2025	103,186	103,186	0.00%	$3,491,814.00
Counterpoint Mutual Funds LLC	31 Dec, 2025	100,179	100,179	0.00%	$3,390,057.00
JANE STREET GROUP, LLC	31 Dec, 2025	79,404	79,404	0.00%	$2,665,911.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	78,528	39,290	100.13%	$2,657,388.00

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