Interpublic Group (NYSE: IPG) files Form 15 to end registration for common stock and multiple senior notes

Rhea-AI Filing Summary

The Interpublic Group of Companies, Inc. filed a Form 15 to certify the termination of registration under Section 12(g) and/or suspend its duty to file reports under Sections 13 and 15(d) of the Exchange Act for its common stock and several series of senior notes. The affected debt securities include its 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, and 5.400% Senior Notes due 2048.

The filing lists the approximate number of record holders for each class, including one holder of common stock and between twelve and thirty-nine holders for each of the note series. It indicates that there are no other classes of securities for which a duty to file reports under Section 13(a) or 15(d) remains. The notice is signed on behalf of the company by its Executive Vice President and General Counsel, Andrew Bonzani.

Insights

Corporate securities and disclosure analyst

IPG is streamlining SEC registration and reporting for specified securities.

The Interpublic Group of Companies, Inc. has filed a Form 15 to end registration and/or suspend periodic reporting obligations for its common stock and several series of senior notes under specific Exchange Act sections. The form lists one record holder for the common stock and relatively small numbers of holders for each note series, which aligns with thresholds that can permit such actions.

This move appears focused on simplifying the company’s registered security profile rather than changing the terms of the notes themselves, based on the information provided. The text also states that there are no other classes of securities for which duties to file reports under Section 13(a) or 15(d) remain, which clarifies the scope of ongoing reporting tied to these particular classes.

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.

FAQ

What did The Interpublic Group of Companies, Inc. (IPG) file in this document?

The Interpublic Group of Companies, Inc. filed a Form 15 to certify the termination of registration under Section 12(g) and/or suspend its duty to file reports under Sections 13 and 15(d) of the Exchange Act for specified securities.

Which IPG securities are covered by this Form 15?

The Form 15 covers IPG’s common stock and six series of senior notes: 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, and 5.400% Senior Notes due 2048.

How many record holders does IPG report for each covered security?

IPG lists one holder of its common stock. The number of holders for the note series ranges from twelve to thirty-nine across the different maturities.

Does IPG indicate any other securities with ongoing reporting duties?

No. The filing states "None" for titles of all other classes of securities for which a duty to file reports under Section 13(a) or 15(d) remains, in the context of this form.

Who signed the Form 15 for The Interpublic Group of Companies, Inc.?

The Form 15 was signed on behalf of the company by Andrew Bonzani, who is the Executive Vice President and General Counsel of The Interpublic Group of Companies, Inc.

When did IPG execute this Form 15 action?

The certification and notice were executed on December 8, 2025, as indicated by the dated signature block.