Prosperity Bancshares, Inc. filed its Form 10-Q for the quarterly period ended September 30, 2026 with the Securities and Exchange Commission on November 9, 2026, reporting results for the three and nine months ended on that date.

Key Highlights

  • Total assets reached $54.101 billion at September 30, 2026, up from $38.463 billion at December 31, 2025, according to the filing.
  • Net income for the nine months ended September 30, 2026 was $426.312 million, compared with $402.936 million for the same period in 2025.
  • Net interest income for the third quarter of 2026 was $442.980 million, versus $273.435 million in the third quarter of 2025.
  • Merger-related expenses totaled $113.015 million for the nine months ended September 30, 2026, compared with $62 thousand for the same period in 2025.
  • Total loans held for investment grew to $30.920 billion at September 30, 2026, from $20.486 billion at December 31, 2025.
  • Basic and diluted earnings per share for the nine-month period were $3.99, down from $4.23 in the comparable 2025 period, as reported in the filing.
  • Shares outstanding were 119,713,312 at September 30, 2026, compared with 93,058,171 at December 31, 2025.

Prosperity Bancshares Reports Significant Balance Sheet Growth and Merger Costs in Third Quarter 2026

Prosperity Bancshares, Inc. (NYSE:PB), a Texas-chartered bank holding company headquartered at Prosperity Bank Plaza, 4295 San Felipe, Houston, Texas 77027, reported a substantial expansion of its balance sheet in the nine months through September 30, 2026. According to the filing, total assets grew to $54.101 billion from $38.463 billion at year-end 2025. Total deposits rose to $41.231 billion from $28.482 billion over the same span, with noninterest-bearing deposits increasing to $13.841 billion from $9.468 billion.

The company disclosed net income of $141.462 million for the three months ended September 30, 2026, compared with $137.556 million in the year-ago quarter. Total interest income for the third quarter was $607.327 million versus $398.107 million a year earlier, while total interest expense was $164.347 million compared with $124.672 million. The provision for credit losses was reported as zero for both the three- and nine-month periods in both years. Goodwill on the balance sheet increased to $4.729 billion at September 30, 2026, from $3.503 billion at December 31, 2025, and core deposit intangibles net of amortization rose to $276.974 million from $51.605 million.

The filing disclosed merger-related expenses of $69.744 million in the third quarter of 2026 alone, contributing to total noninterest expense of $308.613 million for the quarter, up from $138.635 million in the third quarter of 2025. Salaries and employee benefits for the nine-month period were $365.775 million, compared with $264.721 million in the same 2025 period. Total shareholders' equity stood at $9.760 billion at September 30, 2026, versus $7.616 billion at December 31, 2025. As of November 2, 2026, the filing stated there were 119,709,312 outstanding shares of common stock, par value $1.00 per share.

What Was Disclosed

Prosperity Bancshares filed its unaudited quarterly report covering the period ended September 30, 2026, disclosing balance sheet growth, income statement results, significant merger-related charges, and changes in shareholders' equity and outstanding share count relative to December 31, 2025.