0001415889-25-019402.txt : 20250707 0001415889-25-019402.hdr.sgml : 20250707 20250707160128 ACCESSION NUMBER: 0001415889-25-019402 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250630 FILED AS OF DATE: 20250707 DATE AS OF CHANGE: 20250707 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: 251107936 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 form4-07072025_080724.xml X0508 4 2025-06-30 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 2025-06-30 5 J 0 1 0 A 181 I By Profit Sharing Plan Old Second Bancorp, Inc. Common Stock 2025-06-30 5 J 0 15 0 A 3981 I By 401-K Plan Old Second Bancorp, Inc. Common Stock 1450 I Spouse's IRA Old Second Bancorp, Inc. Common Stock 63135 D Restricted Stock Units 38718 D Of this total, 1 share was allocated during the second quarter pursuant to the Old Second Profit Sharing Plan. Information herein was provided by the plan trustee as of 6-30-25. Of this total, 15 shares were allocated during the second quarter pursuant to the Old Second Employee Salary and Savings Plan. Information herein was provided by the plan trustee as of 6-30-25. These shares are held in spouse's IRA for which Mr. Pilmer is listed as a beneficiary. /s/ Shirley Cantrell, Attorney-in-Fact 2025-07-07