Bluevine sale tests Coastal Financial's partner-banking model. What happened. COASTAL FINANCIAL CORPORATION (NASDAQ: CCB) said Bluevine entered a definitive agreement on September 28, 2026 to be acquired by Valley National Bancorp. The filing says the transaction still needs regulatory approvals and other customary closing conditions. Coastal Financial said it will provide more information with its third quarter earnings. Discover more Financial news subscription Ecology & Environment Trade rumor analysis It also said Bluevine and the Bank have maintained a productive relationship for many years. Key numbers. | Metric | Latest | Change | Source | | Bluevine-related deposits | approximately $447 million | / | SEC 8-K | | Active partner relationships | 22 | / | SEC 8-K | | Date of report | September 28, 2026 | / | SEC 8-K | Why it matters. OptimistFi's case is that Coastal Financial's upside depends on whether its partner-banking engine can keep scaling without turning growth into credit, compliance, or dilution risk. This filing is mixed. Bluevine is a financial technology partner of Coastal Community Bank, and the deal tests that view before closing. As of June 30, 2026, CCBX had 22 active partner relationships across a diversified range of products and services. That points to a broad platform, but the filing is only a snapshot and gives no post-announcement operating data. Coastal Financial said it does not currently expect the transaction or any resulting changes to the Bluevine deposit relationship to have a material adverse effect on the Company's liquidity or funding profile. That is the main claim investors need to weigh against the deposit figures. As of September 25, 2026, approximately $447 million of Bluevine-related deposits were held on the Bank's balance sheet. The filing says those deposits fluctuate in the ordinary course based on customer activity, balance sheet management and use of the Bank's deposit sweep arrangements. The Bank also said its funding alternatives, including the ability to bring sweep deposits back onto its balance sheet, give it flexibility to replace Bluevine-related deposits. That supports the company's view, but it also shows the deposit base could move before closing. What's next. The next scheduled update is the company's third quarter earnings. Investors will watch for any change in the deposit balance, the funding view, or the closing timeline. A reaffirmation of the no-material-adverse-effect view and stable Bluevine-related deposits would support the current read. Any notable shift in deposits or the closing timeline would cut against it. Sources. * SEC 8-K - Current report dated September 28, 2026. Browse every company OptimistFi covers at optimistfi.com/stocks, or read the latest evidence-first research. The full COASTAL FINANCIAL CORPORATION investment case, its status and the next test to watch live on the COASTAL FINANCIAL CORPORATION thesis page. Originally published on OptimistFi, evidence-first equity research. More at optimistfi.com.

Kaplan Fox & Kilsheimer LLP is investigating Coastal Financial Corporation for potential securities law violations on behalf of shareholders. The investigation follows Coastal's announcement on 30 July 2026 of a second-quarter net loss of $42.1 million, compared to net income of $12.0 million in the previous quarter. The loss was primarily attributed to a $68.8 million credit expense related to a single partner relationship. Following the announcement, Coastal's share price dropped $30.75, or 43.5%, closing at $39.91 on 30 July 2026. Kaplan Fox, founded in 1956, specialises in securities litigation and has recovered more than $10 billion for clients throughout its history.

Coastal Financial Corporation's shares plummeted 43% in a single trading session after the company disclosed a $42.1 million net loss for Q2 2026. The losses stemmed from $68.8 million in pre-tax charges related to a single Banking-as-a-Service partner, including a $46 million valuation adjustment and $22.8 million in credit loss provisions. Law firm Hagens Berman has launched an investigation into whether Coastal Financial misled investors about its risk management practices. The company had previously assured investors of strict partner screening and rigorous credit oversight for loans originated through its CCBX BaaS platform. The announcement coincided with the departure of Coastal's chief financial officer, further unsettling markets. Shares fell from $70.66 to $39.91.