OMNICOM GROUP INC. — 424B3 Filings
194 424B3 filings on record
This page lists all 424B3 filings submitted to the SEC by OMNICOM GROUP INC. (OMC), sorted by most recent first. Each row links to the full filing on EdgarLookup. OMNICOM GROUP INC. has filed 194 424B3 documents with the SEC since 2015. To view all SEC filings by OMNICOM GROUP INC., see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
11-K
11-K/A
144
144/A
3
4
4/A
424B2
424B3
424B5
425
5
8-A12B
8-K
ARS
CERT
CORRESP
DEF 14A
DEFA14A
DEFR14A
DEFS14A
EFFECT
FWP
NO ACT
POS AM
POSASR
PRE 14A
PRES14A
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC 14D1
SC 14D1/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 424B3 | PROSPECTUS | 0001213900-25-121228 | Dec 12, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-017282 | Jan 30, 2025 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-16-013622 | Mar 29, 2016 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-14-007937 | Oct 24, 2014 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-12-004536 | Aug 7, 2012 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-12-002243 | Apr 19, 2012 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-10-003199 | Aug 3, 2010 | — |
| 424B3 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-09-002518 | Jun 24, 2009 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-08-003350 | Jul 1, 2008 | — |
| 424B3 | FORM 424B3 | 0000891092-08-000833 | Feb 8, 2008 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-07-004594 | Oct 29, 2007 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-07-003247 | Aug 1, 2007 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-07-001793 | May 8, 2007 | — |
| 424B3 | 424B3 | 0000891092-07-001364 | Apr 5, 2007 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-06-001696 | Jun 26, 2006 | — |
| 424B3 | 424B3 | 0000891092-06-001187 | May 5, 2006 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-06-000186 | Jan 30, 2006 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-06-000028 | Jan 5, 2006 | — |
| 424B3 | — | 0000891092-05-001645 | Aug 23, 2005 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-05-001401 | Jul 27, 2005 | — |
| 424B3 | FORM 424B3 | 0000891092-05-000911 | May 9, 2005 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-05-000704 | Apr 8, 2005 | — |
| 424B3 | FORM 424B3 | 0000891092-05-000709 | Apr 8, 2005 | — |
| 424B3 | FORM 424B3 | 0000891092-05-000708 | Apr 8, 2005 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-05-000098 | Jan 25, 2005 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-05-000097 | Jan 25, 2005 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-05-000012 | Jan 5, 2005 | — |
| 424B3 | FORM 424B3 | 0000891092-04-006056 | Dec 28, 2004 | — |
| 424B3 | FORM 424B3 | 0000891092-04-005957 | Dec 15, 2004 | — |
| 424B3 | FORM 424B3 | 0000891092-04-005817 | Dec 6, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-004244 | Aug 25, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-002905 | Jun 15, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-002904 | Jun 15, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-002578 | May 19, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-002021 | Apr 28, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-001515 | Apr 1, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-001351 | Mar 22, 2004 | — |
| 424B3 | FORM 424B3 | 0000891092-04-001346 | Mar 19, 2004 | — |
| 424B3 | 424B3 | 0000891092-04-001086 | Mar 2, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-000907 | Feb 24, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-000906 | Feb 24, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-000521 | Feb 4, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-000350 | Jan 28, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-000138 | Jan 14, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-000123 | Jan 13, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-04-000095 | Jan 9, 2004 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-03-003703 | Dec 18, 2003 | — |
| 424B3 | FORM 424B3 | 0000891092-03-003586 | Dec 8, 2003 | — |
| 424B3 | FORM 424B3 | 0000891092-03-002804 | Oct 17, 2003 | — |
| 424B3 | PROSPECTUS SUPPLEMENT | 0000891092-03-002302 | Aug 27, 2003 | — |