SOUTHSIDE BANCSHARES INC

For the period ended Sep 30, 2026. Filed Oct 29, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Oct 29, 2026

SBSI$35.09+0.0%Stored close · as of Nov 10, 2026

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Contents

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands)

Three Months Ended · Nine Months Ended
	September 30,		September 30,
	2026	2025	2026	2025
Net income	$27,976	$4,913	$78,072	$48,233
Other comprehensive income (loss):
Securities AFS and transferred securities:
Change in unrealized holding gain (loss) on AFS securities during the period	(78,909)	16,327	(85,289)	(2,504)
Reclassification adjustment for amortization related to AFS and HTM debt securities	2,032	2,079	6,374	6,112
Reclassification adjustment for net (gain) loss on sale of AFS securities, included in net income	—	24,395	—	24,949
Derivatives:
Change in net unrealized gain (loss) on effective cash flow hedge interest rate swap derivatives	3,105	828	8,812	(2,715)
Reclassification adjustment of net (gain) loss related to derivatives designated as cash flow hedges	(34)	(1,988)	(545)	(6,427)
Retirement plans:
Amortization of net actuarial loss, included in net periodic benefit cost	668	614	2,003	1,844
Other comprehensive income (loss), before tax	(73,138)	42,255	(68,645)	21,259
Income tax (expense) benefit related to items of other comprehensive income (loss)	15,358	(8,874)	14,415	(4,465)
Other comprehensive income (loss), net of tax	(57,780)	33,381	(54,230)	16,794
Comprehensive income (loss)	$(29,804)	$38,294	$23,842	$65,027

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