ECB Bancorp, Inc. /MD/ (ECBK) Institutional Ownership

Ownership Summary

According to SEC filings for the period ending September 2025, ECB Bancorp, Inc. /MD/ (NASDAQ:ECBK) is held by 48 institutional firms.

• The percentage of ECB Bancorp owned by institutions changed from 31.5% in June 2025 to 31.7% in September 2025, marking a slight up trend.
• In percentage terms, this reflects as a holdings change of 0.10% quarter on quarter, and an increase of 92.00% year over year.
• A review of institutional activity for ECB Bancorp shows 26 of 48 filers increasing their positions, while 11 reduced their stake, and 11 remained unchanged.
• This class of investors increased its holdings in ECB Bancorp to 2.63Mn shares for the 13F-cycle ending September 2025, up by 2.61K shares quarter on quarter, and up 489.46K shares year over year.
• ALLIANCEBERNSTEIN L.P. continues to be the largest institutional holder of ECB Bancorp as of September 30, 2025, with a position of 803.17K shares, representing 9.70% of the company's outstanding stock.
• Among the most significant buyers of ECB Bancorp during September 2025 were BlackRock, Inc. (16.55K), RENAISSANCE TECHNOLOGIES LLC (11.27K), GOLDMAN SACHS GROUP INC (10.40K), UBS Group AG (6.42K), STATE STREET CORP (5.71K).
• Leading sellers of ECB Bancorp stock in September 2025 included ALLIANCEBERNSTEIN L.P. (25.30K), RAFFLES ASSOCIATES LP (11.96K), VANGUARD GROUP INC (9.16K), MORGAN STANLEY (6.86K), BARCLAYS PLC (3.61K).
• The top 10 institutional holders of ECB Bancorp for the quarter ending September 2025 included ALLIANCEBERNSTEIN L.P. (803.17K), VANGUARD GROUP INC (491.22K), BlackRock, Inc. (382.91K), GEODE CAPITAL MANAGEMENT, LLC (171.86K), Sachetta, LLC (118.85K), RENAISSANCE TECHNOLOGIES LLC (94.40K), STATE STREET CORP (75.08K), NORTHERN TRUST CORP (68.08K), Oppenheimer & Close, LLC (61.01K), Minerva Advisors LLC (49.94K).