SOUTHSIDE BANCSHARES INC

Balance Sheet Data

At September 30, 2026, Southside had $8.87 billion in total assets, compared to $8.51 billion at December 31, 2025 and $8.38 billion at September 30, 2025.

Loans at September 30, 2026 were $4.96 billion, an increase of $193.4 million, or 4.1%, compared to $4.77 billion at September 30, 2025. Linked quarter, loans increased $9.1 million, or 0.2%, due to increases of $42.6 million in commercial loans, $10.1 million in municipal loans, $8.8 million in 1-4 family residential loans and $7.8 million in commercial real estate loans. These increases were partially offset by decreases of $57.1 million in construction loans, $1.8 million in commercial owner-occupied loans and $1.3 million in loans to individuals.

Securities at September 30, 2026 were $2.83 billion, an increase of $275.2 million, or 10.8%, compared to $2.56 billion at September 30, 2025. Linked quarter, securities increased $49.3 million, or 1.8%, from $2.78 billion at June 30, 2026.

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Deposits at September 30, 2026 were $6.01 billion, a decrease of $947.8 million, or 13.6%, compared to $6.96 billion at September 30, 2025, primarily due to a decrease of $841.3 million in brokered deposits and a decrease of $154.1 million in public funds deposits, partially offset by an increase of $47.6 million in retail deposits. Linked quarter, deposits decreased $155.6 million, or 2.5%, compared to $6.17 billion at June 30, 2026, due to a decrease in public fund deposits of $200.2 million and a decrease in commercial and retail deposits of $4.8 million, partially offset by an increase in brokered deposits of $49.4 million.

At September 30, 2026, we had 178,615 total deposit accounts with an average balance of $33,000. Our estimated uninsured deposits were 41.8% of total deposits as of September 30, 2026. When excluding affiliate deposits (Southside-owned deposits) and public fund deposits (all collateralized), our total estimated deposits without insurance or collateral was 26.8% as of September 30, 2026. Our noninterest bearing deposits represent approximately 23.3% of total deposits. Linked quarter, our cost of interest bearing deposits decreased four basis points from 2.49% in the prior quarter to 2.45%. Linked quarter, our cost of total deposits decreased five basis points from 1.94% in the prior quarter to 1.89%.

Our cost of interest bearing deposits decreased 30 basis points, from 2.83% for the nine months ended September 30, 2025, to 2.53% for the nine months ended September 30, 2026. Our cost of total deposits decreased 27 basis points, from 2.26% for the nine months ended September 30, 2025, to 1.99% for the nine months ended September 30, 2026.