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OMC

Omnicom Group Inc.
$78.60 -2.24 (-2.77%) At close · Jul 8
Customer concentration — top customer 2.2% of revenue

One customer — 2.2% of revenue (twelve months ended March 31, 2026)

“our largest client represented 2.2% of revenue for the twelve months ended March 31, 2026.”
View the 10-Q filed Apr 29, 2026
Market Cap
$22.40B
Shares
285,006,196

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 1,132
Total Value: $22,229,339,115
Total Shares: 295,185,412
Showing 1–100 of 1,154 holdings by value · page 1 of 12

Institutional Ownership Trend

26 quarters

Superinvestors Holding OMC

All superinvestors →
Joel Greenblatt $28,375,828 Mario Gabelli $13,521,082 Ray Dalio $402,531

Holder Concentration

Across 1,131 13F filers
Top Holder
10.0%
Jun 2023 → Mar 2026 · range 10.0% – 13.1%
of institutional value
Top 5
34.5%
Jun 2023 → Mar 2026 · range 33.9% – 38.6%
of institutional value
Top 10
47.7%
Jun 2023 → Mar 2026 · range 45.1% – 51.0%
of institutional value
HHI
343
Jun 2023 → Mar 2026 · range 343 – 409
Broadly held
Showing 100 of 1,154
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $2,221,506,343 9.99% 29,498,159
Mega STATE STREET CORP $2,090,622,017 9.40% 27,760,218
Mega VANGUARD CAPITAL MANAGEMENT LLC $1,528,437,235 6.88% 20,295,276
Mega Bank of New York Mellon Corp Bank $911,114,753 4.10% 12,098,191
Mega JPMORGAN CHASE & CO $906,105,660 4.08% 12,031,678
Mega GEODE CAPITAL MANAGEMENT, LLC $701,431,089 3.16% 9,313,917
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $657,958,236 2.96% 8,736,665
Large First Eagle Investment Management, LLC $549,997,439 2.47% 7,303,113
Mega MORGAN STANLEY $521,562,710 2.35% 6,925,544
Mega Capital Research Global Investors $504,215,436 2.27% 6,695,199
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $478,782,495 2.15% 6,357,489
Mega FMR LLC $452,482,585 2.04% 6,008,267
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $404,869,120 1.82% 5,376,034
Large Baird Financial Group, Inc. $354,713,035 1.60% 4,710,039
Mega AQR CAPITAL MANAGEMENT LLC $333,243,884 1.50% 4,424,962
Large Beutel, Goodman & Co Ltd. $310,914,774 1.40% 4,128,466
Mega DIMENSIONAL FUND ADVISORS LP $299,632,732 1.35% 3,978,658
Mega Invesco Ltd. $299,598,764 1.35% 3,978,207
Mega GOLDMAN SACHS GROUP INC $270,404,545 1.22% 3,590,553
Mega NORTHERN TRUST CORP Bank $255,855,553 1.15% 3,397,365
Mega VICTORY CAPITAL MANAGEMENT INC $232,021,298 1.04% 3,080,883
Large Pacer Advisors, Inc. $214,450,873 0.96% 2,847,575
Mega UBS Group AG $198,404,720 0.89% 2,634,507
Mega WELLINGTON MANAGEMENT GROUP LLP $189,253,048 0.85% 2,512,987
Mid COOKE & BIELER LP $171,962,628 0.77% 2,283,397
Mega BANK OF AMERICA CORP /DE/ Bank $165,229,158 0.74% 2,193,987
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $153,441,258 0.69% 2,037,462
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $150,581,064 0.68% 1,999,483
Mega ENVESTNET ASSET MANAGEMENT INC $146,393,226 0.66% 1,943,875
Mega VANGUARD FIDUCIARY TRUST CO Bank $133,059,364 0.60% 1,766,822
Mega ROYAL BANK OF CANADA Bank $129,178,711 0.58% 1,715,293
Mega BARCLAYS PLC $118,375,645 0.53% 1,571,845
Mega Legal & General Group Plc $115,334,251 0.52% 1,531,460
Mega PRINCIPAL FINANCIAL GROUP INC $112,074,684 0.50% 1,488,178
Large LAZARD ASSET MANAGEMENT LLC $111,607,461 0.50% 1,481,974
Mega DEUTSCHE BANK AG\ Bank $109,230,748 0.49% 1,450,415
Mega RAYMOND JAMES FINANCIAL INC $106,374,243 0.48% 1,412,485
Mid CRAWFORD INVESTMENT COUNSEL INC $98,750,388 0.44% 1,311,252
Mega CITADEL ADVISORS LLC $93,787,759 0.42% 1,245,356
Mid Cullen Capital Management, LLC $87,712,803 0.39% 1,164,690
Large BRANDES INVESTMENT PARTNERS, LP $86,298,631 0.39% 1,145,912
Mid ARIEL INVESTMENTS, LLC $83,213,407 0.37% 1,104,945
Mega LPL Financial LLC $77,173,997 0.35% 1,024,751
Mega Nuveen, LLC $73,803,421 0.33% 979,995
Mega Amundi $73,178,648 0.33% 971,699
Mega CITIGROUP INC $72,447,165 0.33% 961,986
Mega National Pension Service Pension $72,333,974 0.33% 960,483
Large ASSETMARK, INC $70,183,874 0.32% 931,933
Large Clark Capital Management Group, Inc. $69,599,318 0.31% 924,171
Mega Swiss National Bank Bank $69,531,539 0.31% 923,271
Mega BNP PARIBAS ARBITRAGE, SA $68,485,859 0.31% 909,386
Large Epoch Investment Partners, Inc. $64,519,507 0.29% 856,719
Mid SOUND SHORE MANAGEMENT INC /CT/ $63,483,468 0.29% 842,962
Mega WELLS FARGO & COMPANY/MN $62,075,093 0.28% 824,261
Mega Sumitomo Mitsui Trust Group, Inc. $60,149,795 0.27% 798,696
Large Boston Partners $58,944,308 0.27% 782,689
Mega FIRST TRUST ADVISORS LP $56,966,442 0.26% 756,426
Mega BANK OF MONTREAL /CAN/ Bank $56,668,436 0.25% 752,469
Mega Mitsubishi UFJ Asset Management Co., Ltd. $54,556,522 0.25% 724,426
Mid RWC Asset Management LLP $54,438,661 0.24% 722,861
Large SEI INVESTMENTS CO $53,900,721 0.24% 715,718
Mega California Public Employees Retirement System Pension $52,966,953 0.24% 703,319
Mega HSBC HOLDINGS PLC $52,259,185 0.24% 693,921
Mega Vanguard Global Advisers, LLC $51,815,463 0.23% 688,029
Large PFA Pension, Forsikringsaktieselskab Pension $49,763,266 0.22% 660,779
Mega RHUMBLINE ADVISERS $49,229,544 0.22% 653,692
Large Zurcher Kantonalbank (Zurich Cantonalbank) Bank $48,310,536 0.22% 641,489
Mega VANGUARD ASSET MANAGEMENT, Ltd $47,739,837 0.21% 633,911
Mid GMT Capital Corp $47,392,583 0.21% 629,300
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $47,181,715 0.21% 626,500
Mid THOMPSON SIEGEL & WALMSLEY LLC $44,727,964 0.20% 593,918
Mid MILLER HOWARD INVESTMENTS INC /NY $43,828,085 0.20% 581,969
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $40,088,115 0.18% 532,308
Large SG Americas Securities, LLC Broker-Dealer $39,979,217 0.18% 530,862
Large VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. $38,769,663 0.17% 514,801
Large Swiss Life Asset Management Ltd $37,872,796 0.17% 502,892
Mid VAUGHAN DAVID INVESTMENTS LLC/IL $36,648,331 0.16% 486,633
Mega AMERIPRISE FINANCIAL INC $36,490,855 0.16% 484,542
Large Janney Montgomery Scott LLC $34,187,802 0.15% 453,961
Mega PRICE T ROWE ASSOCIATES INC /MD/ $33,936,116 0.15% 450,619
Mega ALLIANCEBERNSTEIN L.P. $33,726,227 0.15% 447,832
Mid Invenomic Capital Management LP $33,669,218 0.15% 447,075
Large GLENMEDE TRUST CO NA Bank $33,663,945 0.15% 447,005
Large Artisan Partners Limited Partnership $32,652,382 0.15% 433,573
Mid CONNING INC. $32,590,327 0.15% 432,749
Large FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ $32,579,783 0.15% 432,609
Large BANK OF NOVA SCOTIA Bank $32,490,917 0.15% 431,429
Mega TD Asset Management Inc $31,761,012 0.14% 421,737
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $31,502,926 0.14% 418,310
Large Russell Investments Group, Ltd. $29,788,939 0.13% 395,551
Large DANSKE BANK A/S Bank $29,416,913 0.13% 390,611
Mid ZWJ INVESTMENT COUNSEL INC $28,454,226 0.13% 377,828
Large Gotham Asset Management, LLC $28,375,828 0.13% 376,787
Mid Sound Income Strategies, LLC $26,770,822 0.12% 355,475
Mid DEPRINCE RACE & ZOLLO INC $26,717,050 0.12% 354,761
Mid Ardmore Road Asset Management LP $26,614,554 0.12% 353,400
Mid AE Wealth Management LLC $26,507,584 0.12% 351,980
Large ALPS ADVISORS INC $25,499,664 0.11% 338,596
Large Cerity Partners LLC $24,631,715 0.11% 327,071
Mega FRANKLIN RESOURCES INC $24,337,779 0.11% 323,168
Key facts CIK 29989 CUSIP 681919106 13F (30d) 65 filings 43 filers Visit website Investor relations

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