 HOUSTON, April 28, 2021 PRNewswire -- Prosperity Bancshares, Inc. NYSE: PB, the parent company of Prosperity Bank collectively, Prosperity, reported net income for the quarter ended March 31, 2021 of 133.3 million compared with 130.8 million for the same period in 2020. Net income per diluted common share was 1.44 compared with 1.39 for the same period in 2020 and the annualized return on first quarter average assets was 1.54. 