California's Department of Financial Protection and Innovation Closes Irvine's Nano Banc, the Sixth U.S. Bank Failure of 2026
California closes Nano Banc as the sixth bank this year
The California Department of Financial Protection and Innovation has closed Irvine's Nano Banc and appointed the Federal Deposit Insurance Corporation (FDIC) as receiver. This marks the sixth bank failure in the U.S. in 2026 and is the largest by asset size this year.
As of June 30, the bank reported assets of $736 million and deposits of $686 million; on the day of closure, state regulatory assets were approximately $690 million. The FDIC reached a purchase and assumption agreement with Sunwest Bank in Sandy, Utah, which assumed nearly all deposits and purchased approximately $476 million in assets, also disclosing the assumption of deposits of about $605 million and loans of about $227 million. The FDIC retains the remaining assets for future disposition, with initial estimates of the cost to the deposit insurance fund at about $114 million.
The bank had only one remaining branch, which will reopen on September 28 as a Sunwest branch. Depositors will automatically become Sunwest customers, and deposits will continue to be insured by the FDIC. In March, state regulators required the bank to raise its tangible equity to at least 9.5% or complete a sale, merger, or liquidation, which it failed to achieve. As of September 22, tangible equity was about $5.6 million, only 0.82% of assets, below the 3% statutory minimum. State regulators attributed the closure to deteriorating financial conditions, years of mismanagement by executives, and regulatory violations.
The bank was renamed in 2018 after a team acquired Commerce Bank of Temecula Valley for $23.3 million, initially expanding its community business through a technology platform. In 2021, assets peaked but subsequently faced written agreements and cease-and-desist orders from the Federal Reserve and California regulators. In 2022, the Fed issued another cease-and-desist order against the holding company and the bank, requiring a change in management and enhanced governance. In November 2024, the Fed barred former director and interim CEO Anthony R. Gressak III from the industry and fined him $75,000, while another former director, James T. Chung, was also barred, with allegations involving false applications for COVID relief funds for personal expenses.
Prior failures in 2026 occurred in Illinois, Georgia, Indiana, Kansas, and Pennsylvania, all with assets smaller than Nano Banc. The number of failures this year has surpassed the five in 2023 and is higher than the two in both 2024 and 2025. The yield on the 10-year U.S. Treasury recently stood at 5.24%, up from about 4.20% a year ago, putting pressure on community banks' funding costs and securities valuations.
Mechanically, this is a regulatory forced exit rather than a market auction sale. Deposits and some loans were taken over by Sunwest with the assistance of the FDIC, while bad assets and losses are borne by the deposit insurance fund and remaining assets. Funds are flowing from failed community banks to regional banks with capital buffers and expertise in handling receiverships. Beneficiaries include Sunwest and its deposit customers, while Nano's equity holders, subordinated creditors, and similar small banks holding duration-mismatched assets under high interest rates are under pressure. The driving event is clear: the bank was closed after capital fell below regulatory thresholds, not due to a bank run.
Sunwest stated this is its sixth acquisition assisted by the FDIC, having previously taken over failed banks in California, Arizona, Washington, and Idaho between 2009 and 2014. The 10-year yield remains around 5.24%, indicating that the repricing of uninsured wholesale funding and fixed-income assets continues.
Source: Public information
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The path of Nano Banc was not a sudden collapse. The founding team, Mark Rebal, Mark Troncale, and Anthony Gressak, came from California Republic Bank, which was acquired by Mechanics Bank for $330 million. They raised about $71.7 million in 2017, and after acquiring the shell at a low price in 2018, they used technology to push assets from about $60 million to around $1.3 billion by mid-2021. During the expansion phase, they accumulated commercial real estate and governance gaps. In 2021, the Federal Reserve had already issued warnings regarding governance, compliance, and insider risks, and in 2022, it issued another cease-and-desist order requiring a change in leadership. Gressak, who initially served as the credit director and later as interim CEO, left in 2022 and was permanently barred from the industry and fined by the Fed in 2024, with allegations centered on false reporting of COVID relief fund applications. The same team that executed the "quick growth through shell acquisition" ultimately turned it into a "regulatory timeline," leading to the bank's closure directly by state regulators after the capital increase order expired in March 2026.
The capital path is clear: equity could not meet the 9.5% tangible equity requirement, leading to the FDIC's purchase assumption. Sunwest only took about $476 million in assets and most deposits, while the FDIC retained about $260 million in assets for sale, with the insurance fund initially covering about $114 million. Sunwest is controlled by H Bancorp, with Carson Lappetito, who comes from the Hovde system, building a cross-state commercial platform from local banks through multiple receiverships. This is their sixth assisted acquisition. The motivation is not to save the Nano brand but to use the insurance fund's backing to bolster their regional commercial network with cheap core deposits. Nano Financial Holdings, the holding company of Nano, was excluded from the transaction, resulting in a total loss for shareholders.
Similar cases can be seen in the failures of Silicon Valley Bank, First Republic, and California's Silvergate, which self-liquidated in 2023: all were part of the high-growth narrative in California or the West Coast, initially using low-cost deposits and long-duration or concentrated assets to scale, only to be simultaneously pressured by regulators and the market as interest rates rose. The difference is that Nano was never on the systemically important list, and its asset peak was much smaller than those banks, resembling the pre-2010 wave of "shell community banks + founder governance failure" deaths. In terms of industry positioning, the pace of failures in 2026 has already surpassed the number in 2023, but the size of individual failures remains in the hundreds of millions to over a billion range, marking a clearing phase for small commercial banks in a high-interest rate cycle, rather than a new round of large bank crises.
Structural judgments belong to the changes in regulation combined with capital concentration. The mechanism is that 10-year Treasury yields above 5% simultaneously pin down securities losses and funding costs, making it impossible for small banks to delay capital increases through growth narratives; state and federal regulators chose closure rather than indefinite extensions after consecutive cease-and-desist orders failed; the FDIC wholesaled non-redeemable deposits and some loans to capable regional banks. The result is that the customer relationships of failed banks concentrate in a few banks skilled at handling receiverships, with pricing power shifting back from founder-controlled tech community banks to traditional regional banks with capital buffers. High interest rates are not the trigger itself; the trigger is that governance has already deteriorated, and capital has already been depleted, with interest rates merely closing the window.
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