# Filing Detail

Form 424B3 - Prospectus [Rule 424(b)(3)]:
SEC Accession No. 0001104659-21-129548
Filing Date
2021-10-25
Accepted
2021-10-25 17:06:16
Documents
11

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 424B3 | tm2125387-6_424b3.htm | 424B3 | 7701326
2 | GRAPHIC | lg_citinoregister-4c.jpg | GRAPHIC | 13758
3 | GRAPHIC | lg_crowe-4c.jpg | GRAPHIC | 10779
4 | GRAPHIC | lg_crowellpindepen-4c.jpg | GRAPHIC | 6629
5 | GRAPHIC | lg_kbfstifel-4clr.jpg | GRAPHIC | 91869
6 | GRAPHIC | lg_oldsecond-4clr.jpg | GRAPHIC | 24488
7 | GRAPHIC | lg_westsuburban-pn.jpg | GRAPHIC | 56771
8 | GRAPHIC | sg_crowellpnew3-bw.jpg | GRAPHIC | 3315
9 | GRAPHIC | sg_jamesleccher-bw.jpg | GRAPHIC | 11282
10 | GRAPHIC | sg_keefebruwood-bw.jpg | GRAPHIC | 8836
11 | GRAPHIC | sg_kevinjacker-bw.jpg | GRAPHIC | 4817
| Complete submission text file | 0001104659-21-129548.txt |  | 8024009

Mailing Address 37 SOUTH RIVER STREET AURORA IL 60507
Business Address 37 S RIVER ST AURORA IL 60507 6308920202
OLD SECOND BANCORP INC (Filer) CIK: 0000357173 (see all company filings)

EIN.: 363143493 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 424B3 | Act: 33 | File No.: 333-259964 | Film No.: 211344904
SIC: 6022 State Commercial Banks