UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 15
CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION
UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934
OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
Commission File Number: 1-6686
THE INTERPUBLIC GROUP OF COMPANIES, INC.*
(Exact name of registrant as specified in its charter)
909 Third Avenue
New York, NY 10022
(212) 704-1200
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)
Common Stock, par value $0.10 per share
4.650% Senior Notes due 2028
4.750% Senior Notes due 2030
2.400% Senior Notes due 2031
5.375% Senior Notes due 2033
3.375% Senior Notes due 2041
5.400% Senior Notes due 2048
(Title of each class of securities covered by this Form)
None
(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)
Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:
| Rule 12g-4(a)(1) |
☒ | |
| Rule 12g-4(a)(2) |
☐ | |
| Rule 12h-3(b)(1)(i) |
☒ | |
| Rule 12h-3(b)(1)(ii) |
☐ | |
| Rule 15d-6 |
☐ | |
| Rule 15d-22(b) |
☐ |
Approximate number of holders of record as of the certification or notice date:
Common Stock, par value $0.10 per share: One (1) holder
4.650% Senior Notes due 2028: Thirty-nine (39) holders
4.750% Senior Notes due 2030: Twenty-six (26) holders
2.400% Senior Notes due 2031: Twenty-two (22) holders
5.375% Senior Notes due 2033: Twenty-two (22) holders
3.375% Senior Notes due 2041: Twelve (12) holders
5.400% Senior Notes due 2048: Twenty-three (23) holders
Pursuant to the requirements of the Securities Exchange Act of 1934, The Interpublic Group of Companies, Inc. has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.
| Date: December 8, 2025 | THE INTERPUBLIC GROUP OF COMPANIES, INC. | |||||
| By: | /s/ Andrew Bonzani | |||||
| Name: | Andrew Bonzani | |||||
| Title: | Executive Vice President and General Counsel | |||||
| * | On December 8, 2024, The Interpublic Group of Companies, Inc., a Delaware corporation (“IPG”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Omnicom Group Inc., a New York corporation (“Omnicom”) and EXT Subsidiary Inc., a Delaware corporation and a direct wholly owned subsidiary of Omnicom (“Merger Sub”). On November 26, 2025, pursuant to the terms and conditions of the Merger Agreement, Merger Sub merged with and into IPG (the “Merger”), with IPG surviving the Merger as a direct wholly owned subsidiary of Omnicom. |