0000906465 2026-05-20 2026-05-20 false 0000906465 8-K 2026-05-20 QCR Holdings, Inc. DE 000-22208 42-1397595 3551 Seventh Street Moline IL 61265 309 736-3584 false false false false Common Stock, $1.00 Par Value QCRH NASDAQ false