(1) AURORA, IL / ACCESSWIRE / April 21, 2021 / Old Second Bancorp, Inc. (the "Company," "we," "us," and "our") (NASDAQ:OSBC), the parent company of Old Second National Bank (the "Bank"), today announced financial results for the first quarter of 2021. Our net income was $11.9 million, or $0.40 per diluted share, for the first quarter of 2021, compared to net income of $8.0 million, or $0.27 per diluted share, for the fourth quarter of 2020, and net income of $275,000, or $0.01 per diluted share, for the first quarter of 2020. Net income for the first quarter of 2021 reflects a reversal of provision for credit losses of $3.0 million pre-tax, compared to no provision expense recorded in the fourth quarter of 2020, and an $8.0 million pre-tax provision recorded in the first quarter of 2020. Mortgage banking income totaled $5.7 million in the first quarter of 2021, which reflected a $2.7 million increase from the fourth quarter of 2020, and a $4.9 million increase from the first quarter of 2020, primarily due to mark to market gains on mortgage servicing rights ("MSRs") of $1.1 million in the first quarter of 2021, compared to mark to market losses of $1.3 million and $2.1 million in the fourth quarter of 2020 and the first quarter of 2020, respectively.