OMNICOM GROUP INC. — 424B2 Filings
23 424B2 filings on record
This page lists all 424B2 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 23 424B2 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 |
|---|---|---|---|---|
| 424B2 | PROSPECTUS | 0001213900-26-021810 | Feb 27, 2026 | — |
| 424B2 | PROSPECTUS | 0001213900-26-021800 | Feb 27, 2026 | — |
| 424B2 | PROSPECTUS | 0001213900-26-020134 | Feb 25, 2026 | — |
| 424B2 | PROSPECTUS | 0001213900-26-020086 | Feb 25, 2026 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0001013762-24-003270 | Jul 31, 2024 | — |
| 424B2 | PROSPECTUS | 0001013762-24-002295 | Jul 30, 2024 | — |
| 424B2 | PROSPECTUS | 0001213900-24-018571 | Feb 29, 2024 | — |
| 424B2 | PROSPECTUS | 0001213900-24-017720 | Feb 28, 2024 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0001839882-21-017117 | Nov 19, 2021 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0001387131-21-011195 | Nov 17, 2021 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000891092-21-003916 | Apr 29, 2021 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000891092-20-004830 | Mar 30, 2020 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000891092-20-001872 | Feb 20, 2020 | — |
| 424B2 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-20-001838 | Feb 19, 2020 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000891092-19-007007 | Jun 26, 2019 | — |
| 424B2 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-19-006935 | Jun 24, 2019 | — |
| 424B2 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-16-013422 | Mar 28, 2016 | — |
| 424B2 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-14-007877 | Oct 22, 2014 | — |
| 424B2 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-12-004445 | Aug 6, 2012 | — |
| 424B2 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-12-002201 | Apr 18, 2012 | — |
| 424B2 | PRELIMINARY PROSPECTUS SUPPLEMENT | 0000891092-10-003171 | Aug 2, 2010 | — |
| 424B2 | FINAL PROSPECTUS SUPPLEMENT | 0000891092-09-002564 | Jun 25, 2009 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000891092-98-000075 | Mar 5, 1998 | — |