ISTR ▼ -1.4% - Investar Holding Corporation $ISTR - Investar Holding Corporation Declares Quarterly Common and Preferred Stock Cash Dividends Investar Holding Corporation declared quarterly cash dividends on both its common and preferred stock, though the announcement did not prevent shares from declining 1.4% today, suggesting investors may have been looking for a larger payout or other positive developments to drive the stock higher. 16-SEP-2026 06:31 PM ET