AMERICAN BUSINESS BANK (AMBZ) Institutional Ownership Changes & 13F Activity

AMERICAN BUSINESS BANK (AMBZ). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Banc Funds Co Llc, Rhino Investment Partners, Inc, Fca Corp, and Farmers & Merchants Trust Co Of Long Beach.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Rhino Investment Partners, IncBuy+141,541—141,541$9.17MQ4 2025Feb 17, 2026
Banc Funds Co LlcBuy+260,773—260,773$16.90MQ4 2025Feb 12, 2026
Fca CorpBuy+12,369—12,369$801.51KQ4 2025Feb 11, 2026
Farmers & Merchants Trust Co Of Long BeachBuy+9,213—9,213$597.00KQ4 2025Jan 29, 2026
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Frequently asked questions about AMBZ activity

  • Which institutional owners are buying AMBZ?

    Institutional owners buying AMBZ include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in AMBZ activity?

    "Buy" means an investor increased their reported position in AMBZ compared to the prior reporting period. This reflects growing exposure to AMERICAN BUSINESS BANK (AMBZ) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in AMBZ increasing?

    Institutional interest in AMBZ can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.