# Filing Detail

Form S-4 - Registration of securities, business combinations:
SEC Accession No. 0001104659-21-122025
Filing Date
2021-10-01
Accepted
2021-10-01 16:41:35
Documents
19

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | S-4 | tm2125387-1_s4.htm | S-4 | 7809321
2 | EXHIBIT 5.1 | tm2125387d2_ex5-1.htm | EX-5.1 | 12361
3 | EXHIBIT 23.1 | tm2125387d2_ex23-1.htm | EX-23.1 | 2273
4 | EXHIBIT 23.2 | tm2125387d2_ex23-2.htm | EX-23.2 | 1996
5 | EXHIBIT 99.1 | tm2125387d2_ex99-1.htm | EX-99.1 | 4028
6 | EXHIBIT 99.2 | tm2125387d2_ex99-2.htm | EX-99.2 | 3205
7 | EXHIBIT 99.3 | tm2125387d2_ex99-3.htm | EX-99.3 | 3318
8 | EXHIBIT 99.4 | tm2125387d2_ex99-4.htm | EX-99.4 | 3325
9 | EXHIBIT 99.5 | tm2125387d2_ex99-5.htm | EX-99.5 | 3348
10 | GRAPHIC | image_001.jpg | GRAPHIC | 632967
11 | GRAPHIC | image_002.jpg | GRAPHIC | 6825
12 | GRAPHIC | lg_citinoregister-4c.jpg | GRAPHIC | 13758
13 | GRAPHIC | lg_crowe-4c.jpg | GRAPHIC | 10779
14 | GRAPHIC | lg_crowellpindepen-4c.jpg | GRAPHIC | 6629
15 | GRAPHIC | lg_kbfstifel-4clr.jpg | GRAPHIC | 91869
16 | GRAPHIC | lg_oldsecond-4clr.jpg | GRAPHIC | 24488
17 | GRAPHIC | lg_westsuburban-pn.jpg | GRAPHIC | 56771
18 | GRAPHIC | sg_crowellpnew3-bw.jpg | GRAPHIC | 3315
19 | GRAPHIC | sg_keefebruwood-bw.jpg | GRAPHIC | 8836
| Complete submission text file | 0001104659-21-122025.txt |  | 9019205

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: S-4 | Act: 33 | File No.: 333-259964 | Film No.: 211299461
SIC: 6022 State Commercial Banks