Euroseas Ltd. (ESEA) Ownership

NASDAQ: ESEATop holders, insider trades and short interest.

ESEA ownership summary

as of October 18, 2026
Institutions
9.8%
of shares outstanding
Insiders
59.15%
of shares outstanding
Shares outstanding
7.1M
Float
2.8M
shares available to trade
Short interest
1.11%
31K shares short
Days to cover
0.76
short interest down 43.6% vs prior month
  • Institutions 9.79%
  • Insiders 59.15%
  • Other investors 31.07%

ESEA top institutional holders

20 largest
Euroseas Ltd. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Acadian Asset Management LLC1.12%79K$5.2M+218 (+0.3%)June 30, 2026
2Two Sigma Investments LLC0.96%68K$4.5M−16,375 (−19.5%)June 30, 2026
3Renaissance Technologies Corp0.93%65K$4.3M−35,300 (−35.0%)June 30, 2026
4Morgan Stanley - Brokerage Accounts0.49%35K$2.3M−1,979 (−5.4%)June 30, 2026
5CWM Advisors, LLC0.46%33K$2.2M+8,811 (+37.0%)June 30, 2026
6The Goldman Sachs Group Inc0.41%29K$1.9M−8,575 (−22.7%)June 30, 2026
7Boston Partners Global Investors, Inc0.35%25K$1.6M+4,664 (+23.3%)June 30, 2026
8D. E. Shaw & Co LP0.34%24K$1.6M−10,775 (−31.3%)June 30, 2026
9Qube Research & Technologies0.29%20K$1.3M+6,866 (+51.8%)June 30, 2026
10Jane Street Group LLC0.27%19K$1.3M+4,785 (+33.3%)June 30, 2026
11Navellier & Associates Inc0.22%16K$1.0M+7,575 (+94.8%)June 30, 2026
12North Star Investment Management Corp0.21%15K$992,550—June 30, 2026
13Crédit Agricole S.A.0.20%14K$941,864—June 30, 2026
14Citadel Advisors Llc0.19%13K$871,591+13,172 (0.0%)June 30, 2026
15GSA Capital Partners LLP0.18%12K$817,597+2,433 (+24.5%)June 30, 2026
16Tidal Investments LLC.0.16%11K$754,867−1,118 (−8.9%)June 30, 2026
17State Street Corp0.16%11K$740,972+1,088 (+10.8%)June 30, 2026
18Millennium Management LLC0.12%8,818$583,487−14,018 (−61.4%)June 30, 2026
19LPL Financial Corp0.12%8,701$575,745−158 (−1.8%)June 30, 2026
20Mariner Wealth Advisors LLC0.11%8,040$532,007−1 (−0.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 50K shares and 9 cut 88K.

ESEA top mutual fund and ETF holders

20 largest
Euroseas Ltd. top fund holders
#Holder% of sharesSharesValueChangeReported
1North Star Dividend I0.21%15K$992,550—September 30, 2026
2Indosuez Funds America Small&Mid Caps G0.20%14K$941,864—August 31, 2026
3Boston Partners Long/Short Equity Instl0.16%11K$739,714+477 (+4.5%)May 31, 2026
4RAM (Lux) Sys Emg Mkts Equities B USD0.12%8,612$569,856−2,415 (−21.9%)June 30, 2026
5Alicanto Sicav I Absolute Return P0.12%8,200$542,594—August 31, 2026
6Even Herd Long Short ETF0.08%5,504$364,200—September 30, 2026
7Fidelity Nasdaq Composite Index0.07%5,058$334,688—August 31, 2026
8SonicShares™ Global Shipping ETF0.06%4,533$299,949−129 (−2.8%)September 30, 2026
9GS EM CORE Eq I Acc USD Close0.05%3,876$256,475−4,628 (−54.4%)July 31, 2026
10Acquirers Small and Micro Deep Value ETF0.05%3,565$235,896—September 30, 2026
11Avantis Total Equity Markets ETF0.04%3,106$205,524—September 30, 2026
12Harbor International Core Investor0.04%2,762$182,762—September 30, 2026
13NTEESG APIF0.03%2,000$132,340—September 30, 2026
14BSF Systematic US Eq Abs Ret A2 USD0.02%1,093$72,324+169 (+18.3%)December 31, 2025
15Innovator U.S. Small Cp Mgd Flr ETF0.01%540$35,732—September 30, 2026
16Wilshire International Equity Instl0.01%464$30,703—August 31, 2026
17MINT GLOBAL SMALL CAPS FIF ACOES0.01%400$26,468+400 (0.0%)June 30, 2026
18Optimum International Instl<0.01%230$15,219—August 31, 2026
19JHVIT Total Stock Market Index I<0.01%123$8,139+5 (+4.2%)August 31, 2026
20Corgi Shipping & Global Logistics ETF<0.01%100$6,617—September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

ESEA insider transactions

latest 1
Euroseas Ltd. insider transactions
DateNameTransactionPriceSharesValue
2026-04-16Stefania KarmiriSell$72.00250$18,000

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

ESEA shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns ESEA

Institutional investors own 9.8% of Euroseas's shares and insiders 59.15%. The largest holder is Acadian Asset Management LLC with 1.12% of the shares (79K), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 9 reduced their stake in the latest filings. Short interest is 1.11% of the float, or 0.76 days of average trading volume. The share count rose 755.0% since 2014.

Related: ESEA analyst forecast, ESEA key metrics, ESEA dividend history. See the ESEA stock overview for the latest quote and news.

ESEA ownership FAQ

Who owns the most Euroseas stock?

The largest shareholders of Euroseas are Acadian Asset Management LLC (1.12%), Two Sigma Investments LLC (0.96%), Renaissance Technologies Corp (0.93%), Morgan Stanley - Brokerage Accounts (0.49%), CWM Advisors, LLC (0.46%).

What percentage of Euroseas is owned by institutions?

Institutions hold 9.8% of Euroseas's shares outstanding; insiders hold 59.15%.

Which funds own Euroseas?

The largest fund holders of Euroseas are North Star Dividend I (0.21%), Indosuez Funds America Small&Mid Caps G (0.20%), Boston Partners Long/Short Equity Instl (0.16%), RAM (Lux) Sys Emg Mkts Equities B USD (0.12%), Alicanto Sicav I Absolute Return P (0.12%).

What is Euroseas's short interest?

31K shares of Euroseas were sold short, 1.11% of the float; at the average daily volume it would take 0.76 days to cover.

Are insiders buying or selling Euroseas?

Of the latest 1 reported insider transactions in Euroseas (since April 16, 2026), 0 were purchases and 1 were sales.

How many shares of Euroseas are outstanding?

Euroseas has 7.1M shares outstanding, of which 2.8M are in the public float.

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