Company · Ownership research

EUROSEAS LTD. ESEA

CIK 0001341170 · CUSIP Y23592135

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP Y23592135 (ESEA), not CUSIP Y23592309 (ESEA), and does not merge CUSIPs.

This page lists the top 20 of 40 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$5.25M 73,565 shares	0.01%	+8.10K(+12.40%)Added	SEC filing ↗ Nov 12, 2026	▾
02	Boston Partners CIK 1386060 · View history	$2.88M 40,353 shares	0.00%	+15.71K(+63.70%)Added	SEC filing ↗ Nov 10, 2026	▾
03	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$2.13M 29,899 shares	0.00%	-49.41K(-62.30%)Reduced	SEC filing ↗ Nov 9, 2026	▾
04	North Star Investment Management Corp. CIK 1342857 · View history	$1.07M 15,000 shares	0.06%	0(0.00%)Unchanged	SEC filing ↗ Oct 27, 2026	▾
05	JANE STREET GROUP, LLC CIK 1595888 · View history	$1.04M 14,623 shares	0.00%	-4.55K(-23.70%)Reduced	SEC filing ↗ Nov 12, 2026	▾
06	WINTON GROUP Ltd CIK 1612063 · View history	$822.75K 11,536 shares	0.03%	+3.50K(+43.60%)Added	SEC filing ↗ Nov 12, 2026	▾
07	LPL Financial LLC CIK 1403438 · View history	$774.52K 10,860 shares	0.00%	+2.16K(+24.80%)Added	SEC filing ↗ Nov 6, 2026	▾
08	STATE STREET CORP CIK 93751 · View history	$723.33K 10,142 shares	0.00%	-1.06K(-9.40%)Reduced	SEC filing ↗ Nov 12, 2026	▾
09	CITIGROUP INC CIK 831001 · View history	$639.67K 8,969 shares	0.00%	+1.72K(+23.70%)Added	SEC filing ↗ Nov 4, 2026	▾
10	Mariner, LLC CIK 1373442 · View history	$574.91K 8,061 shares	0.00%	+21(+0.30%)Added	SEC filing ↗ Nov 12, 2026	▾
11	Y-Intercept (Hong Kong) Ltd CIK 1772875 · View history	$537.61K 7,538 shares	0.01%	+7.54KNew	SEC filing ↗ Oct 16, 2026	▾
12	Redhawk Wealth Advisors, Inc. CIK 1535811 · View history	$461.90K 6,476 shares	0.05%	+2.33K(+56.10%)Added	SEC filing ↗ Oct 14, 2026	▾
13	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$360.74K 5,058 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Nov 6, 2026	▾
14	AlphaCore Capital LLC CIK 1713662 · View history	$276.51K 3,877 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Nov 4, 2026	▾
15	State of Wyoming CIK 1821626 · View history	$270.09K 3,787 shares	0.02%	+3.79KNew	SEC filing ↗ Oct 28, 2026	▾
16	JAMISON PRIVATE WEALTH MANAGEMENT, INC. CIK 2006637 · View history	$262.10K 3,675 shares	0.03%	-63(-1.70%)Reduced	SEC filing ↗ Oct 14, 2026	▾
17	EXCHANGE TRADED CONCEPTS, LLC CIK 1457320 · View history	$254.26K 3,565 shares	0.00%	-494(-12.20%)Reduced	SEC filing ↗ Oct 28, 2026	▾
18	Squarepoint Ops LLC CIK 1642575 · View history	$240.21K 3,368 shares	0.00%	+3.37KNew	SEC filing ↗ Nov 9, 2026	▾
19	Cambridge Investment Research Advisors, Inc. CIK 1419186 · View history	$222.00K 3,108 shares	0.00%	-187(-5.70%)Reduced	SEC filing ↗ Nov 2, 2026	▾
20	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$221.52K 3,106 shares	0.00%	-220(-6.60%)Reduced	SEC filing ↗ Nov 12, 2026	▾

Showing 20 / 40 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

275,405

Not deduplicated across managers

Disclosed value

$19.64M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

EUROSEAS LTD. · Q3 2026

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.