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Portolan Capital Management, LLC

Position in ECO — Okeanis Eco Tankers Corp.

CIK 1350290 BOSTON, MA

Position in ECO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$9,823,369
-$17,437,558 QoQ
Shares Held
195,997
-63.6% QoQ
Ownership
0.502%
of shares outstanding
% of Portfolio
0.37%
of 13F equity value
Holder Rank
#14
of 116 holders
Holding Since
Dec 2025
3 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ECO Over Time

Shares Held

Position Value (USD)

Position in Marine Shipping

Industrials · as of Jun 30, 2026

Portolan Capital Management, LLC holds $12,261,543 across 2 Marine Shipping names. ECO ranks #1 (80.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ECO
Okeanis Eco Tankers Corp.
This page
195,997 $9,823,369

All Filings in ECO

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3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $9,823,369 195,997
2026-03-31 $27,260,927 538,860
2025-12-31 $5,475,819 161,815