# EDGAR Filing Document

**Accession Number:** 0000029989
**File Stem:** 0000029989-26-000014
**Filing Date:** 2026-6
**Character Count:** 41636
**Document Hash:** 19b22e1a16e3422b9fbd21b4e8ff8ea5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000029989-26-000014.hdr.sgml**: 20260629

**ACCESSION NUMBER**: 0000029989-26-000014

**CONFORMED SUBMISSION TYPE**: 11-K

**PUBLIC DOCUMENT COUNT**: 38

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260629

**DATE AS OF CHANGE**: 20260629

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OMNICOM GROUP INC.
- **CENTRAL INDEX KEY:** 0000029989
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-ADVERTISING AGENCIES [7311]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 131514814
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 11-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-10551
- **FILM NUMBER:** 261136634

**BUSINESS ADDRESS:**
- **STREET 1:** 280 PARK AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** 2124153600

**MAIL ADDRESS:**
- **STREET 1:** 280 PARK AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10017

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** OMNICOM GROUP INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DOYLE DANE BERNBACH GROUP INC
- **DATE OF NAME CHANGE:** 19861117

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DOYLE DANE BERNBACH INTERNATIONAL INC
- **DATE OF NAME CHANGE:** 19850604

?xml version='1.0' encoding='ASCII'? omc-20251231

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

**___________________**

**FORM 11-K**

ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025

**____________________** 

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

**OMNICOM GROUP RETIREMENT SAVINGS PLAN**

B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:

**OMNICOM GROUP INC.**

**280 Park Avenue**

**New York, NY 10017**

------

**OMNICOM GROUP RETIREMENT SAVINGS PLAN**

**ANNUAL REPORT ON FORM 11-K FOR THE YEAR ENDED DECEMBER 31, 2025** 

**TABLE OF CONTENTS**

---

| | |
|:---|:---|
| | <u>Page</u> |
| **REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM:** |  |
| PKF O'Connor Davies, LLP | [1](#i36927fb55a6644738cd1166279ef9df7_7) |
| **FINANCIAL STATEMENTS:** |  |
| Statement of Net Assets Available for Benefits as of December 31, 2025 and 2024 | [2](#i36927fb55a6644738cd1166279ef9df7_10) |
| Statement of Changes in Net Assets Available for Benefits for the Years Ended December 31, 2025 and 2024 | [3](#i36927fb55a6644738cd1166279ef9df7_13) |
| Notes to Financial Statements | [4](#i36927fb55a6644738cd1166279ef9df7_16) |
| **SUPPLEMENTAL SCHEDULES:** |  |
| Schedule H, Line 4a - Schedule of Delinquent Participant Contributions for the Year Ended December 31, 2025 | [11](#i36927fb55a6644738cd1166279ef9df7_52) |
| Schedule H, Line 4i - Schedule of Assets (Held at End of Year) at December 31, 2025 | [12](#i36927fb55a6644738cd1166279ef9df7_55) |
| **SIGNATURE** | [13](#i36927fb55a6644738cd1166279ef9df7_58) |
| **EXHIBIT 23:** |  |
| Consent of Independent Registered Public Accounting Firm | 14 |

---

i

------

**REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

The Plan Administrator and Participants

Omnicom Group Retirement Savings Plan

New York, New York

**Opinion on the Financial Statements**

We have audited the accompanying statements of net assets available for benefits of the Omnicom Group Retirement Savings Plan (the Plan) as of December 31, 2025 and 2024, and the related statements of changes in net assets available for benefits for the years ended December 31, 2025 and 2024, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2025 and 2024, and the changes in net assets available for benefits for the years ended December 31, 2025 and 2024, in conformity with accounting principles generally accepted in the United States of America.

**Basis for Opinion**

These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on the Plan's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting, but not for the purpose of expressing an opinion on the effectiveness of the Plan's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by the Plan's management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

**Supplemental Information**

The supplemental information contained in: (1) Schedule H, Line 4a – Schedule of Delinquent Participant Contributions for the year ended December 31, 2025 and (2) Schedule H, Line 4i - Schedule of Assets (Held at End of Year) at December 31, 2025 have been subjected to audit procedures performed in conjunction with the audits of the Plan's financial statements. The supplemental information is the responsibility of the Plan's management. Our audit procedures included determining whether the supplemental information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, including their form and content, are presented in conformity with the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental information is fairly stated, in all material respects, in relation to the financial statements as a whole.

/s/ PKF O'Connor Davies, LLP

We have served as the Plan's auditor since 2009.

Harrison, New York

June 29, 2026

PCAOB ID No. 127

------

**OMNICOM GROUP RETIREMENT SAVINGS PLAN**

**STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS**

---

| | | |
|:---|:---|:---|
| | **December 31,** | **December 31,** |
| | **2025** | **2024** |
| **Assets:** |  |  |
| Investments, at fair value: |  |  |
| &nbsp;&nbsp;&nbsp;Mutual Funds | $459849026 | $468094524 |
| &nbsp;&nbsp;&nbsp;Common/Collective Trusts | 4169582148 | 3665201911 |
| &nbsp;&nbsp;&nbsp;Company Stock | 91266320 | 102272331 |
|  | 4720697494 | 4235568766 |
| Investments, at contract value | 195059614 | 206039150 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total Investments | 4915757108 | 4441607916 |
| Receivables: |  |  |
| &nbsp;&nbsp;&nbsp;Employer contributions | 24210000 | 4000000 |
| &nbsp;&nbsp;&nbsp;Notes receivable from participants | 24212824 | 23958080 |
| &nbsp;&nbsp;&nbsp;Accrued interest and dividends | 1078534 | 833725 |
| &nbsp;&nbsp;&nbsp;Due from broker for investments sold | 14141 | 160797 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total Receivables | 49515499 | 28952602 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Assets | 4965272607 | 4470560518 |
| **Liabilities:** |  |  |
| Accrued expenses and other | 632463 | 558712 |
| Due to broker for investments purchased | 87853 | 22511 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Liabilities | 720316 | 581223 |
| **Net Assets Available for Benefits** | $4964552291 | $4469979295 |

---

See accompanying notes to financial statements.

------

**OMNICOM GROUP RETIREMENT SAVINGS PLAN**

**STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS**

---

| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2025** | **2024** |
| **Additions:** |  |  |
| Contributions: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Employer | $24215133 | $4075424 |
| &nbsp;&nbsp;&nbsp;&nbsp;Participants | 207303191 | 211536779 |
| &nbsp;&nbsp;&nbsp;&nbsp;Rollovers | 34432088 | 52456920 |
|  | 265950412 | 268069123 |
| Dividend and interest income | 42727750 | 52245981 |
| Settlement proceeds |  | 1308804 |
| Net appreciation in fair value of investments | 710438949 | 579618771 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Additions | 1019117111 | 901242679 |
| **Deductions:** |  |  |
| Benefits paid | 544216702 | 450030350 |
| Administrative expenses | 1951762 | 1924473 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total Deductions | 546168464 | 451954823 |
| **Net increase** | 472948647 | 449287856 |
| Assets transferred into Plan | 21624349 | 42708286 |
| **Net assets available for benefits:** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Beginning of year** | 4469979295 | 3977983153 |
| &nbsp;&nbsp;&nbsp;&nbsp;**End of year** | $4964552291 | $4469979295 |

---

See accompanying notes to financial statements.

------

**OMNICOM GROUP RETIREMENT SAVINGS PLAN**

**NOTES TO FINANCIAL STATEMENTS**

**1. Description of Plan** 

The following brief description of the Omnicom Group Retirement Savings Plan, or the Plan, provides only general information. Participants should refer to the Summary Plan Description, or SPD, or the Plan document for a more complete description of the Plan's provisions. In the event of any conflict between the SPD and the Plan document, the Plan document will control.

***General***

The Plan is a defined contribution retirement plan covering all eligible employees of participating companies of Omnicom Group Inc., or the Company, and the Company is the sponsor of the Plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended, or ERISA, and to the provisions of the Internal Revenue Code of 1986, as amended, or the Code, as it pertains to plans intended to qualify under Section 401(a) of the Code. The Administrative Committee, or the Committee, comprised of persons appointed by the Company's Board of Directors, or its delegate, administers the Plan and is responsible for resolving all questions that may arise under the Plan. The Plan's assets are held in trust with Fidelity Management Trust Company, or the Trustee, and an affiliate of the Trustee performs the recordkeeping services for the Plan.

***Eligibility and Plan Entry Dates***

For the 401(k) and matching contribution features of the Plan, eligible employees of participating companies can enroll in the Plan as soon as administratively practicable following employment.

***Contributions***

Each year, participants may contribute from 1% to 70% of their eligible compensation as either the pre-tax 401(k) or Roth after-tax 401(k) contributions, or a combination of both, up to the maximum allowed under the Code. Participants who are age 50 or older during the Plan year are eligible to contribute additional pre-tax or Roth after-tax catch-up contributions. The Plan accepts rollover contributions from other employers' qualified plans and from conduit Individual Retirement Accounts.

Each participating company may make discretionary matching contributions, or Employer Contributions, to the Plan each year on behalf of its eligible employees. Participants are generally eligible to receive Employer Contributions, if any, if they are active employees on the last day of the Plan year and are credited with at least 1,000 hours of service during the Plan year. Employer Contributions, if any, are deposited and allocated to the accounts of eligible participants after each Plan year-end. With respect to the 2024 Plan year, the discretionary Employer Contributions were considerably less than 2025 and prior years.

***Participant Accounts***

Participants direct the investment of their accounts into various investment options offered by the Plan. Each participant's account is credited with the participant's contributions, allocations of discretionary Employer Contributions, and investment income or losses, which consists of interest, dividends, and the net realized and unrealized investment gains and losses, less administrative expenses, for the investment option in which that account is invested. The benefit to which a participant is entitled is the participant's vested account balance.

The investment option that allows participants to invest in Omnicom Group Inc. common stock, or Company Stock, has been designated as an Employee Stock Ownership Plan, or ESOP. Participants may elect to receive any dividends paid on their vested shares held in the ESOP as a cash payment instead of being reinvested in the Plan.

***Vesting***

Participants vest in any employer matching contributions according to the following schedule, as adopted by each participating company:

---

| | |
|:---|:---|
| 0% | for less than 2 years, |
| 40% | for 2 years but less than 3 years, |
| 100% | for 3 years or more; or, |

---

------

Participants vest in prior employer profit sharing contributions according to the following schedule:

---

| | |
|:---|:---|
| 0% | for less than 2 years, |
| 20% | for 2 years but less than 3 years, |
| 50% | for 3 years but less than 4 years, |
| 70% | for 4 years but less than 5 years, |
| 100% | for 5 years or more. |

---

In addition, the Plan maintains certain more favorable vesting schedules, which were grandfathered for eligible participants when retirement plans separately sponsored by subsidiaries of the Company were merged into the Plan.

***Forfeitures***

Forfeited non-vested account balances are used to reduce Employer Contributions. Forfeitures of $5.2 million and $8.9 million were used to reduce Employer Contributions at December 31, 2025 and 2024, respectively. The Employer Contribution receivable at December 31, 2025 and 2024 reflects the reduction of the forfeitures for those years.

***Benefit Payments***

Upon termination of employment, retirement, disability or death, participants, or their beneficiaries, may elect to receive the vested portion of their account in the form of a direct rollover, a lump-sum distribution, partial lump-sum distributions, or annual installment payments for up to 20 years. Terminated participants may defer payment of their account until they are required to receive a distribution in accordance with the Code. The Plan provides that accounts of terminated participants are distributed if their vested balance is $7,000 or less. The Plan also allows hardships withdrawals, if certain conditions are met, and has an in-service withdrawal provision for employees who are age 59 ½ or older.

***Notes Receivable from Participants***

Generally, participants who are active employees may borrow from their accounts a minimum amount of $1,000 up to a maximum amount equal to the lesser of $50,000 or 50% of their vested account balance. Loans are secured by the balance in the participant's account and bear interest at 1% above the prime rate in effect at the time the loan was initiated. Interest rates for outstanding loans range from 4.25% to 9.50% at December 31, 2025 and 4.25% to 9.50% at December 31, 2024. Principal and interest are generally repaid through payroll deductions. General purpose loans must be repaid within five years and loans granted for principal residences must be repaid within 15 years. However, loans granted for principal residences that were transferred from merged plans may have longer maturity dates.

***Investment Option Changes***

The Committee periodically reviews the Plan's investment options and may change the investment options available to the participants. Effective December 6, 2024, the Fidelity Freedom Blend 2070 Commingled Pool Class T was added as an investment option, and two investment options, the Fidelity 500 Index Fund and the Fidelity Contrafund Commingled Pool Class D were replaced with similar investment options, the Spartan 500 Index Pool Class D and the Fidelity Contrafund Commingled Pool Class F. There were no fund changes for the 2025 Plan year.

***Administrative Expenses***

Expenses arising from participants' individual investment elections or transactions, including loan set up fees, are paid directly by the participant. Participants with balances of $1,000 or more are charged a recordkeeping fee of $34 per year and an administrative fee of $12 per year. Direct participant expenses, recordkeeping fees and administrative fees are included in administrative expenses in the Statement of Changes in Net Assets Available for Benefits.

***Assets Transferred into Plan***

In 2025, one separate retirement plan sponsored by subsidiaries of the Company, the P5 Strategies, LLC 401(k) Profit Sharing Plan was merged into the Plan and assets of approximately $21.6 million were transferred into the Plan. In 2024, two separate retirement plans sponsored by subsidiaries of the Company, the TPN Holdings LLC 401(k) Plan and a portion of the assets of the Insperity 401(k) Plan attributable to the employees of Ptarmigan Media Inc. were merged into the Plan and assets of approximately $42.7 million were transferred into the Plan.

------

**2. Summary of Significant Accounting Policies** 

***Basis of Accounting***

The Plan's financial statements are prepared on the accrual basis of accounting in conformity with generally accepted accounting principles in the United States, or U.S. GAAP.

***Use of Estimates***

The preparation of financial statements in conformity with U.S. GAAP requires the Plan's management to make estimates and assumptions that affect the reported amounts of assets and liabilities, additions to and deductions from net assets, and disclosure of contingent assets and liabilities. Actual results could differ from those estimates and assumptions and the difference could be material.

***Investments***

Investments in funds of registered investment companies (mutual funds) are stated at fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

Shares of mutual funds are valued at quoted market prices. Shares of certain common/collective trusts are valued at the net asset value, or NAV, as reported by the trustees and are based on the fair value of the underlying net assets. The NAV is used as a practical expedient to estimate fair value. Each common/collective trust provides for daily redemption at the reported NAV per share with no advance notice. There were no unfunded commitments as of December 31, 2025 and 2024. Shares of Company Stock are valued at the closing price as reported on The New York Stock Exchange.

The Fidelity Managed Income Portfolio II, or MIP II, is a common/collective trust that holds fully benefit-responsive investment contracts (see Note 3) and is stated at contract value. Contract value is the relevant measurement attribute for fully benefit-responsive investment contracts because contract value is the amount participants would receive if they were to initiate permitted transactions under the Plan.

Purchases and sales of investments are recorded on the trade date. Dividends are recorded on the ex-dividend date. Interest income is recorded on the accrual basis. The net appreciation (depreciation) in the fair value of investments consists of the net realized and unrealized investment gains and losses.

The Empower Guaranteed Income Fund is a carry-over investment from the TPN Holdings LLC 401(k) Plan, which was transferred into the Plan in 2024. This investment is not an investment option for Plan participants.

***Fair Value Measurement***

The Plan applies the fair value measurement guidance for its financial assets and liabilities that are required to be measured at fair value on a recurring basis. The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Plan's market assumptions. The inputs establish the following fair value hierarchy:

Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2 - Unadjusted quoted prices in active markets for similar assets or liabilities; unadjusted quoted prices for identical assets or liabilities in markets that are not active; and model-derived valuations with observable inputs.

Level 3 - Unobservable inputs for the asset or liability.

Investments where fair value is measured using NAV as a practical expedient are not categorized in the fair value hierarchy.

***Notes Receivable from Participants***

Notes receivable from participants are measured at the unpaid principal balance, plus any accrued interest. As provided for in the Plan, delinquent notes receivable are classified as benefit payments and are reflected in the statement of changes in net assets available for benefits.

***Benefit Payments***

Benefits are recorded when paid.

***Risk and Uncertainties***

The Plan provides participants with various investment options. Investment securities, in general, are exposed to various risks, such as interest rate risk, credit risk, liquidity risk, foreign currency risk, economic changes, and overall market volatility risk. The value of the Plan's investments is subject to volatility. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the financial statements and participants' account balances.

------

In addition, global economic disruptions, including geopolitical events, international hostilities, acts of terrorism, public health crises, inflation or stagflation, tariffs and other trade barriers, central bank interest rate policies and labor and supply chain challenges could cause economic uncertainty and volatility. The future impact on the Plan's net assets available for benefits and changes in net assets available for benefits is uncertain.

**3. Investment in Fully Benefit Responsive Contracts** 

The underlying assets of MIP II are comprised of fixed income securities, including U.S. Treasury and agency bonds, publicly traded investment grade corporate debt, asset-backed securities, and other debt securities, and money market funds. The securities are "wrapped" by synthetic investment contracts that provide liquidity for participant withdrawals by maintaining a constant net asset value. The issuers of the wrap contracts guarantee a minimum rate of return and provide full benefit responsiveness. Wrap contracts are purchased from issuers rated in the top three long-term rating categories (A- or the equivalent and above). The contract value of MIP II is determined by the Trustee and is equal to the sum of all of the benefits owed to participants. Participants may ordinarily direct the withdrawal or transfer of all or a portion of their investment in MIP II at contract value. At December 31, 2025 and 2024, there were no reserves against the wrap contracts carrying value due to the credit risk of the issuers. The interest crediting rates for MIP II at December 31, 2025 and 2024 were 3.03% and 2.72%, respectively.

**4. Investments**

Investments measured at fair value:

---

| | | |
|:---|:---|:---|
| | **December 31,** | **December 31,** |
| | **2025** | **2024** |
| Omnicom Group Inc. Common Stock | $91266320 | $102272331 |
| Spartan 500 Index Pool Class D | 707678562 | 661722526 |
| Fidelity Contrafund Commingled Pool Class F | 555208474 | 511152193 |
| JPMCB Large Cap Growth CF-A Class | 266542693 | 259636627 |
| T. Rowe Price Institutional Large Cap Value Fund | 159748079 | 162743008 |
| Fidelity Diversified International Commingled Pool Class C | 180668875 | 153771132 |
| AB Discovery Value Fund Class Z | 114897285 | 130774077 |
| William Blair Small-Mid Cap Growth CIT | 108415604 | 125132900 |
| PIMCO Total Return Fund Institutional Class | 107877219 | 103884862 |
| Vanguard FTSE Social Index Fund IS | 75878288 | 69692745 |
| State Street U.S. Bond Index Fund Class XIV | 33975884 | 24887631 |
| State Street Global All Cap Equity Ex-U.S. Index Fund Class II | 34019458 | 19147439 |
| State Street Russell Small/Mid Cap Index Fund Class II | 41406775 | 36091574 |
| Fidelity Freedom Blend Income Commingled Pool Class T/Retirement Fund | 11368039 | 10152441 |
| Fidelity Freedom Blend 2010 Commingled Pool Class T | 7065617 | 6322733 |
| Fidelity Freedom Blend 2015 Commingled Pool Class T | 10047845 | 9910597 |
| Fidelity Freedom Blend 2020 Commingled Pool Class T | 30242395 | 33240211 |
| Fidelity Freedom Blend 2025 Commingled Pool Class T | 86925940 | 87050854 |
| Fidelity Freedom Blend 2030 Commingled Pool Class T | 157927279 | 149037005 |
| Fidelity Freedom Blend 2035 Commingled Pool Class T | 280083679 | 240731405 |
| Fidelity Freedom Blend 2040 Commingled Pool Class T | 333908504 | 281108386 |
| Fidelity Freedom Blend 2045 Commingled Pool Class T | 356931206 | 293645061 |
| Fidelity Freedom Blend 2050 Commingled Pool Class T | 395942381 | 329621593 |
| Fidelity Freedom Blend 2055 Commingled Pool Class T | 329129549 | 255551019 |
| Fidelity Freedom Blend 2060 Commingled Pool Class T | 190536326 | 144257385 |
| Fidelity Freedom Blend 2065 Commingled Pool Class T | 50445600 | 33031153 |
| Fidelity Freedom Blend 2070 Commingled Pool Class T | 1111463 | 46 |
| Fidelity Government Money Market Fund | 1448155 | 999832 |
|  | $4720697494 | $4235568766 |

---

------

The net appreciation (depreciation) in the fair value of investments:

---

| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2025** | **2024** |
| Omnicom Group Inc. Common Stock | $(6430333) | $256553 |
| Spartan 500 Index Pool Class D | 112515534 | (22968250) |
| Fidelity 500 Index Fund |  | 152459323 |
| Fidelity Contrafund Commingled Pool Class F | 108031600 | (21771992) |
| Fidelity Contrafund Commingled Pool Class D |  | 162976569 |
| JPMCB Large Cap Growth CF-A Class | 34654258 | 66844001 |
| T. Rowe Price Institutional Large Cap Value Fund | (428827) | 4983480 |
| Fidelity Diversified International Commingled Pool Class C | 42114722 | 10608980 |
| AB Discovery Value Fund Class Z | (3996918) | (4907759) |
| William Blair Small-Mid Cap Growth CIT | 300147 | 13502174 |
| PIMCO Total Return Fund Institutional Class | 4583103 | (2113251) |
| Vanguard FTSE Social Index Fund IS | 10844179 | 14377290 |
| State Street U.S. Bond Index Fund Class XIV | 1921554 | 308559 |
| State Street Global All Cap Equity Ex-U.S. Index Fund Class II | 7048715 | 964563 |
| State Street Russell Small/Mid Cap Index Fund Class II | 4549150 | 5019805 |
| Fidelity Freedom Blend Income Commingled Pool Class T/Retirement Fund | 1058703 | 371296 |
| Fidelity Freedom Blend 2005 Commingled Pool Class T |  | 39862 |
| Fidelity Freedom Blend 2010 Commingled Pool Class T | 686914 | 448720 |
| Fidelity Freedom Blend 2015 Commingled Pool Class T | 1206753 | 619962 |
| Fidelity Freedom Blend 2020 Commingled Pool Class T | 4261738 | 2479985 |
| Fidelity Freedom Blend 2025 Commingled Pool Class T | 12944451 | 6936287 |
| Fidelity Freedom Blend 2030 Commingled Pool Class T | 24576443 | 12630081 |
| Fidelity Freedom Blend 2035 Commingled Pool Class T | 45086436 | 22130547 |
| Fidelity Freedom Blend 2040 Commingled Pool Class T | 59378603 | 32272378 |
| Fidelity Freedom Blend 2045 Commingled Pool Class T | 66787763 | 34587294 |
| Fidelity Freedom Blend 2050 Commingled Pool Class T | 74940280 | 38826659 |
| Fidelity Freedom Blend 2055 Commingled Pool Class T | 60403604 | 29105586 |
| Fidelity Freedom Blend 2060 Commingled Pool Class T | 34551512 | 15638293 |
| Fidelity Freedom Blend 2065 Commingled Pool Class T | 8751915 | 2991776 |
| Fidelity Freedom Blend 2070 Commingled Pool Class T | 96950 |  |
|  | $710438949 | $579618771 |

---

------

**5. Fair Value** 

Investments measured at fair value on a recurring basis:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **December 31, 2025** | **December 31, 2025** | **December 31, 2025** | **December 31, 2025** |
| | **Level 1** | **Level 2** | **Level 3** | **Total** |
| Mutual Funds | $459849026 | $— | $— | $459849026 |
| Company Stock | 91266320 |  |  | 91266320 |
| Common/Collective Trusts measured at NAV<br> as a practical expedient |  |  |  | 4169582148 |
|  | $551115346 | $— | $— | $4720697494 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| | **Level 1** | **Level 2** | **Level 3** | **Total** |
| Mutual Funds | $468094524 | $— | $— | $468094524 |
| Company Stock | 102272331 |  |  | 102272331 |
| Common/Collective Trusts measured at NAV<br> as a practical expedient |  |  |  | 3665201911 |
|  | $570366855 | $— | $— | $4235568766 |

---

**6. Party-In-Interest Transactions** 

Certain investments are managed by the Trustee or certain of its affiliates. These investments qualify as exempt party-in-interest transactions under ERISA. Fees paid by the Plan for investment related services are included in net appreciation (depreciation) in fair value of investments in the Statement of Changes in Net Assets Available for Benefits.

One of the Plan's investment options invests exclusively in Company Stock. At December 31, 2025 and 2024, the Plan owned 1,130,136 and 1,188,574 shares of Company Stock, respectively, with a corresponding fair value of $91.3 million and $102.3 million, respectively.

Additionally, participants who are active employees may borrow from their accounts and such loans qualify as exempt party-in-interest transactions under ERISA. These loans are recorded as notes receivable from participants in the Statement of Net Assets Available for Benefits.

**7. Plan Amendment or Termination** 

The Company or its delegate has the right to amend the Plan at any time. In addition, although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan, subject to the provisions of ERISA. In the event of Plan termination or the complete discontinuance of contributions by the Company under the Plan, the participants' accounts will become fully vested in accordance with the terms of the Plan.

**8. Tax Status** 

The Plan is a retirement plan that is designed to satisfy the qualification requirements under Section 401(a) of the Code and therefore, is not subject to tax under present income tax regulations. The Internal Revenue Service, or IRS, has determined and informed the Company by letter dated November 20, 2015, that the terms of the Plan and related trust comply with applicable sections of the Code. Although the Plan has been amended since receiving the determination letter, the Plan administrator and the Plan's counsel believe that the Plan is designed and is currently being operated in compliance with the applicable requirements of the Code.

U.S. GAAP requires the Plan's management to evaluate tax positions taken by the Plan and recognize a tax liability or asset if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. The Plan's management has analyzed the tax positions taken by the Plan, and has concluded that as of December 31, 2025, there were no uncertain positions taken or expected to be taken that would require recognition of a liability or asset or disclosure in the Plan's financial statements. The Plan is subject to routine examination by various taxing jurisdictions. Currently, there are no open examinations for any period.

**9. Delinquent Participant Contributions**

In 2025, one participating company failed to remit $224 for an employee's contribution to the Plan in a timely manner. This amount was subsequently remitted to the Plan. The Trustee computed and applied the applicable earnings to the participant.

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**10. Settlement Proceeds**

The Company resolved a lawsuit that claimed certain actions related to the Plan violated ERISA's fiduciary rules. Although the Company, its officers, and the Plan's Administrative Committee strongly denied any wrongdoing and actively contested the allegations, they chose to settle the case to avoid continued litigation. The Court approved the settlement on December 12, 2023. In accordance with the Court-approved allocation plan, a total of $1,308,804 in settlement proceeds was distributed to participants' accounts in the Plan in 2024.

**11. Subsequent Events**

In November 2025, the Company completed the acquisition of The Interpublic Group of Companies, Inc. In connection with this acquisition, The Interpublic Group of Companies, Inc. Savings Plan is expected to be merged into the Plan in October 2026.

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**OMNICOM GROUP RETIREMENT SAVINGS PLAN**

**Schedule H, Line 4a - Schedule of Delinquent Participant Contributions**

**For The Year Ended December 31, 2025** 

**EIN: 13-1514814**

**Plan No. 004**

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| | | | | |
|:---|:---|:---|:---|:---|
| | **Total that Constitutes Non-Exempt Prohibited Transactions** | **Total that Constitutes Non-Exempt Prohibited Transactions** | **Total that Constitutes Non-Exempt Prohibited Transactions** | |
| Participant Contributions<br>and<br>Loan Repayments<br>Transferred Late<br>to the Plan | Contributions<br>Not Corrected | Contributions<br>Corrected<br>Outside VFCP | Contributions<br>Pending Correction<br>In VFCP | Total Fully Corrected<br>Under VFCP and PTE<br>(Prohibited Transaction<br>Exemption) |
| $224 | $— | $224 | $— | $— |

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In 2025, one participating company failed to remit $224 for an employee's contribution to the Plan in a timely manner. This amount was subsequently remitted to the Plan. The Trustee computed and applied the applicable earnings to the participant.

See report of independent registered public accounting firm.

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**OMNICOM GROUP RETIREMENT SAVINGS PLAN**

**Schedule H, Line 4i - Schedule of Assets (Held at End of Year)**

**December 31, 2025** 

**EIN: 13-1514814**

**Plan No. 004**

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| (a) | (b) | (c) | (c) | (d) | (e) |
|  | Identity of issue, borrower, lessor or similar party | Description of investment, including maturity date, rate of interest, collateral, par or maturity value | Shares | Cost | Current value |
| \* | Omnicom Group Inc. Common Stock | Common Stock<br>$0.15 par value | 1130136 | a | 91266320 |
| \* | Fidelity Managed Income Portfolio II | Common/Collective Trust | 194794327 | a | 194868030 |
| \* | Spartan 500 Index Pool Class D | Common/Collective Trust | 2177540 | a | 707678562 |
| \* | Fidelity Contrafund Commingled Pool Class F | Common/Collective Trust | 9921524 | a | 555208474 |
|  | JPMCB Large Cap Growth CF-A Class | Common/Collective Trust | 2102569 | a | 266542693 |
|  | T. Rowe Price Institutional Large Cap Value Fund | Mutual Fund | 6975899 | a | 159748079 |
| \* | Fidelity Diversified International Commingled Pool Class C | Common/Collective Trust | 7521602 | a | 180668875 |
|  | AB Discovery Value Fund Class Z | Mutual Fund | 5820531 | a | 114897285 |
|  | William Blair Small-Mid Cap Growth CIT | Common/Collective Trust | 2551742 | a | 108415604 |
|  | PIMCO Total Return Fund Institutional Class | Mutual Fund | 12175758 | a | 107877219 |
|  | Vanguard FTSE Social Index Fund IS | Mutual Fund | 1608954 | a | 75878288 |
|  | State Street Russell Small/Mid Cap Index Fund Class II | Common/Collective Trust | 1994930 | a | 41406775 |
|  | State Street U.S. Bond Index Fund Class XIV | Common/Collective Trust | 2944184 | a | 33975884 |
|  | State Street Global All Cap Equity Ex-U.S. Index Fund Class II | Common/Collective Trust | 1832254 | a | 34019458 |
| \* | Fidelity Freedom Blend Income Commingled Pool Class T/Retirement Fund | Common/Collective Trust | 610201 | a | 11368039 |
| \* | Fidelity Freedom Blend 2005 Commingled Pool Class T | Common/Collective Trust |  | a |  |
| \* | Fidelity Freedom Blend 2010 Commingled Pool Class T | Common/Collective Trust | 302466 | a | 7065617 |
| \* | Fidelity Freedom Blend 2015 Commingled Pool Class T | Common/Collective Trust | 398724 | a | 10047845 |
| \* | Fidelity Freedom Blend 2020 Commingled Pool Class T | Common/Collective Trust | 1151653 | a | 30242395 |
| \* | Fidelity Freedom Blend 2025 Commingled Pool Class T | Common/Collective Trust | 3016167 | a | 86925940 |
| \* | Fidelity Freedom Blend 2030 Commingled Pool Class T | Common/Collective Trust | 5194976 | a | 157927279 |
| \* | Fidelity Freedom Blend 2035 Commingled Pool Class T | Common/Collective Trust | 8116015 | a | 280083679 |
| \* | Fidelity Freedom Blend 2040 Commingled Pool Class T | Common/Collective Trust | 9017243 | a | 333908504 |
| \* | Fidelity Freedom Blend 2045 Commingled Pool Class T | Common/Collective Trust | 9368273 | a | 356931206 |
| \* | Fidelity Freedom Blend 2050 Commingled Pool Class T | Common/Collective Trust | 10541597 | a | 395942381 |
| \* | Fidelity Freedom Blend 2055 Commingled Pool Class T | Common/Collective Trust | 8171041 | a | 329129549 |
| \* | Fidelity Freedom Blend 2060 Commingled Pool Class T | Common/Collective Trust | 7056901 | a | 190536326 |
| \* | Fidelity Freedom Blend 2065 Commingled Pool Class T | Common/Collective Trust | 2384008 | a | 50445600 |
| \* | Fidelity Freedom Blend 2070 Commingled Pool Class T | Common/Collective Trust | 89924 | a | 1111463 |
| \* | Fidelity Government Money Market Fund | Mutual Fund | 1448155 | a | 1448155 |
|  | Empower Guaranteed Income Fund | Common/Collective Trust | 191584 | a | 191584 |
| \* | Notes receivable from participants | Participant Loans\*\* |  | **—** | 24212824 |
|  |  |  |  |  | 4939969932 |
| \* Represents a party-in-interest as defined by ERISA. | \* Represents a party-in-interest as defined by ERISA. | \* Represents a party-in-interest as defined by ERISA. | \* Represents a party-in-interest as defined by ERISA. | \* Represents a party-in-interest as defined by ERISA. | \* Represents a party-in-interest as defined by ERISA. |
| \*\* Maturity dates through November 2040. Interest rates range from 4.25% to 9.50%. | \*\* Maturity dates through November 2040. Interest rates range from 4.25% to 9.50%. | \*\* Maturity dates through November 2040. Interest rates range from 4.25% to 9.50%. | \*\* Maturity dates through November 2040. Interest rates range from 4.25% to 9.50%. | \*\* Maturity dates through November 2040. Interest rates range from 4.25% to 9.50%. | \*\* Maturity dates through November 2040. Interest rates range from 4.25% to 9.50%. |
| a - The cost of participant-directed investments is not required to be disclosed. | a - The cost of participant-directed investments is not required to be disclosed. | a - The cost of participant-directed investments is not required to be disclosed. | a - The cost of participant-directed investments is not required to be disclosed. | a - The cost of participant-directed investments is not required to be disclosed. | a - The cost of participant-directed investments is not required to be disclosed. |

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See report of independent registered public accounting firm.

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**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Administrative Committee of the Plan has duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
| | | **OMNICOM GROUP RETIREMENT SAVINGS PLAN** |
| Dated: | June 29, 2026 | **/s/ Leslie Chiocco** |
| | | Leslie Chiocco<br>Member of Administrative Committee |

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## Ex-23

**EXHIBIT 23**

**CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

Omnicom Group Retirement Savings Plan

New York, New York

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-74591) of Omnicom Group Inc. of our report dated June 29, 2026 relating to the financial statements and supplemental schedules of the Omnicom Group Retirement Savings Plan, which appears in this Annual Report on Form 11-K.

/s/ PKF O'Connor Davies, LLP

Harrison, New York

June 29, 2026

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