0001415889-25-009401.txt : 20250401 0001415889-25-009401.hdr.sgml : 20250401 20250401172415 ACCESSION NUMBER: 0001415889-25-009401 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250331 FILED AS OF DATE: 20250401 DATE AS OF CHANGE: 20250401 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Pilmer Donald CENTRAL INDEX KEY: 0001673321 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-10537 FILM NUMBER: 25801013 MAIL ADDRESS: STREET 1: 37 S. RIVER ST. CITY: AURORA STATE: IL ZIP: 60506 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: OLD SECOND BANCORP INC CENTRAL INDEX KEY: 0000357173 STANDARD INDUSTRIAL CLASSIFICATION: STATE COMMERCIAL BANKS [6022] ORGANIZATION NAME: 02 Finance EIN: 363143493 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 37 S RIVER ST CITY: AURORA STATE: IL ZIP: 60507 BUSINESS PHONE: 6308920202 MAIL ADDRESS: STREET 1: 37 SOUTH RIVER STREET CITY: AURORA STATE: IL ZIP: 60507 4 1 form4-04012025_090412.xml X0508 4 2025-03-31 0000357173 OLD SECOND BANCORP INC OSBC 0001673321 Pilmer Donald 37 S. RIVER ST. AURORA IL 60506 false true false false EVP 0 Old Second Bancorp, Inc. Common Stock 2025-03-31 5 J 0 12 0 A 3966 I By 401-K Plan Old Second Bancorp, Inc. Common Stock 180 I By Profit Sharing Plan Old Second Bancorp, Inc. Common Stock 1450 I Spouse's IRA Restricted Stock Units 38718 D Old Second Bancorp, Inc. Common Stock 63135 D Of this total, 12 shares were allocated during the first quarter pursuant to the Old Second Bancorp, Inc. Employee Salary Savings Plan. Information herein was provided by the plan trustee as of 3-31-25. These shares are held in spouse's IRA for which Mr. Pilmer is listed as a beneficiary. Included in this total are 57,649 shares held in Mr. Pilmer's name in a brokerage account and 5,486 shares held in Mr. Pilmer's name outright. /s/ Shirley Cantrell, Attorney-in-Fact 2025-04-01