Company · Ownership research

EUROSEAS LTD. ESEA

CIK 0001341170 · CUSIP Y23592135

Insider trading Initial holdings Institutional 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 62 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	$6.74M 100,765 shares	0.01%	+4.09K(+4.20%)Added	SEC filing ↗ May 14, 2026	▾
02	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$5.61M 83,967 shares	0.00%	+52.69K(+168.50%)Added	SEC filing ↗ May 15, 2026	▾
03	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$5.28M 79,095 shares	0.01%	+6.44K(+8.90%)Added	SEC filing ↗ May 13, 2026	▾
04	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$2.52M 37,711 shares	0.00%	+25.93K(+220.20%)Added	SEC filing ↗ May 15, 2026	▾
05	MORGAN STANLEY CIK 895421 · View history	$2.45M 36,631 shares	0.00%	-1.73K(-4.50%)Reduced	SEC filing ↗ May 15, 2026	▾
06	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$2.30M 34,430 shares	0.00%	-8.51K(-19.80%)Reduced	SEC filing ↗ May 15, 2026	▾
07	MARSHALL WACE, LLP CIK 1318757 · View history	$1.61M 24,056 shares	0.00%	+24.06KNew	SEC filing ↗ May 15, 2026	▾
08	Inspire Investing, LLC CIK 1670139 · Amended · View history	$1.59M 23,805 shares	0.09%	+23.80KNew	SEC filing ↗ Apr 23, 2026	▾
09	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$1.53M 22,836 shares	0.00%	-30.55K(-57.20%)Reduced	SEC filing ↗ May 15, 2026	▾
10	Boston Partners CIK 1386060 · View history	$1.34M 19,984 shares	0.00%	+838(+4.40%)Added	SEC filing ↗ May 11, 2026	▾
11	North Star Investment Management Corp. CIK 1342857 · View history	$1.00M 15,000 shares	0.06%	0(0.00%)Unchanged	SEC filing ↗ Apr 23, 2026	▾
12	JANE STREET GROUP, LLC CIK 1595888 · View history	$961.70K 14,386 shares	0.00%	+6.99K(+94.40%)Added	SEC filing ↗ May 12, 2026	▾
13	CREDIT AGRICOLE S A CIK 1191672 · View history	$951.54K 14,234 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
14	Squarepoint Ops LLC CIK 1642575 · View history	$897.73K 13,429 shares	0.00%	+3.10K(+29.90%)Added	SEC filing ↗ May 15, 2026	▾
15	Qube Research & Technologies Ltd CIK 1729829 · View history	$886.57K 13,262 shares	0.00%	+7.04K(+113.20%)Added	SEC filing ↗ May 15, 2026	▾
16	Tidal Investments LLC CIK 1600064 · View history	$837.36K 12,526 shares	0.00%	+1.04K(+9.00%)Added	SEC filing ↗ May 15, 2026	▾
17	RAYMOND JAMES FINANCIAL INC CIK 720005 · View history	$826.07K 12,357 shares	0.00%	+12.36KNew	SEC filing ↗ May 14, 2026	▾
18	Walleye Capital LLC CIK 1758720 · Amended · View history	$690.36K 10,327 shares	0.00%	-12.18K(-54.10%)Reduced	SEC filing ↗ May 13, 2026	▾
19	STATE STREET CORP CIK 93751 · View history	$675.85K 10,110 shares	0.00%	+2.59K(+34.40%)Added	SEC filing ↗ May 15, 2026	▾
20	State of Tennessee, Department of Treasury CIK 1587973 · View history	$663.22K 9,921 shares	0.00%	+2.85K(+40.30%)Added	SEC filing ↗ May 15, 2026	▾

Showing 20 / 62 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

724,903

Not deduplicated across managers

Disclosed value

$48.44M

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. · Q1 2026

Explore all 62 reporting institutions.

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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.