AMBZ Institutional Ownership & Shareholders
AMERICAN BUSINESS BANK (AMBZ) is currently held by 3 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $18.23M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Banc Funds Co Llc is currently the largest disclosed institutional shareholder of AMBZ tracked by InsiderSet, reporting ownership valued at approximately $16.67M in its June 30, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed AMBZ value among the investors covered in this analysis. Major shareholders include Banc Funds Co Llc, Fca Corp, Farmers & Merchants Trust Co Of Long Beach, and several other long-term asset managers with concentrated positions in AMERICAN BUSINESS BANK (AMBZ).
This page ranks the largest institutional AMBZ shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
3
Total Reported Value
$18.23M
Largest Holder
Banc Funds Co Llc
Largest Position
$16.67M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
4
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Banc Funds Co Llc | 2.75% | 229,173 | $16,674,627 | — | — | — | |
| Fca Corp | 0.22% | 12,034 | $878,482 | — | — | — | |
| Farmers & Merchants Trust Co Of Long Beach | 0.14% | 9,213 | $672,456 | — | — | — |
Frequently asked questions about AMBZ
Who are the largest institutional holders of AMBZ?
The largest institutional holders of AMBZ reported in the latest SEC Form 13F filings include Banc Funds Co Llc, Fca Corp, and Farmers & Merchants Trust Co Of Long Beach. InsiderSet ranks institutional holders by their latest reported AMBZ position.
What is AMBZ institutional ownership?
This page tracks AMBZ positions reported by institutional investment managers through SEC Form 13F. AMERICAN BUSINESS BANK (AMBZ) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own AMBZ?
InsiderSet currently tracks 3 institutional managers reporting AMBZ holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of AMBZ shareholders.
How much AMBZ stock do institutions own?
Institutional investment managers disclosed approximately $18.23M in AMBZ holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was AMBZ institutional ownership last updated?
The latest AMBZ institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional AMBZ holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its AMBZ position after the reporting date.
Are institutions buying or selling AMBZ?
Institutional buying and selling can be analyzed by comparing AMBZ positions across consecutive 13F reporting periods. InsiderSet's AMBZ Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View AMBZ ownership changes.
How has AMBZ institutional ownership changed over time?
InsiderSet tracks AMBZ institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.