OMNICOM GROUP (OMC) Institutional Shareholders
OMNICOM GROUP (OMC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $21.71B in OMC holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of OMC tracked by InsiderSet, reporting ownership valued at approximately $2.22B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $2.32B, representing an estimated gain of +4.50% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 50% of the total disclosed OMC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., State Street Corp, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in OMNICOM GROUP (OMC).
This page ranks the largest institutional OMC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,101
Total Reported Value
$21.71B
Largest Holder
Blackrock, Inc.
Largest Position
$2.22B
Insider Transactions (90d)
20
Latest Filing Quarter
Q2 2026
New Institutional Positions
29
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.04% | 29,498,159 | $2,221,506,333 | $2,321,505,113 | +$99,998,780 | +4.50% | |
| State Street Corp | 0.07% | 27,760,218 | $2,109,953,580 | $2,184,729,157 | +$74,775,577 | +3.54% | |
| Vanguard Capital Management Llc | 0.04% | 20,295,276 | $1,528,437,236 | $1,597,238,221 | +$68,800,985 | +4.50% | |
| Vanguard Portfolio Management Llc | 0.06% | 14,840,407 | $1,117,631,051 | $1,167,940,031 | +$50,308,980 | +4.50% | |
| Bank Of New York Mellon Corp | 0.17% | 12,098,191 | $911,114,698 | $952,127,632 | +$41,012,934 | +4.50% | |
| Geode Capital Management, Llc | 0.04% | 9,313,917 | $699,752,247 | $733,005,268 | +$33,253,021 | +4.75% | |
| Massachusetts Financial Services Co | 0.22% | 8,736,665 | $664,854,081 | $687,575,536 | +$22,721,455 | +3.42% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.73% | 7,303,113 | $549,997,441 | $574,754,993 | +$24,757,552 | +4.50% |
| Morgan Stanley | 0.03% | 6,925,544 | $521,562,871 | $545,040,313 | +$23,477,442 | +4.50% | |
| Capital Research Global Investors | 0.08% | 6,695,199 | $504,215,437 | $526,912,161 | +$22,696,724 | +4.50% | |
| Charles Schwab Investment Management Inc | 0.07% | 6,357,489 | $480,173,462 | $500,334,384 | +$20,160,922 | +4.20% | |
| Fmr Llc | 0.02% | 6,008,267 | $452,482,622 | $472,850,613 | +$20,367,991 | +4.50% | |
| Hotchkis & Wiley Capital Management Llc | 1.25% | 5,376,034 | $404,869,121 | $423,093,876 | +$18,224,755 | +4.50% | |
| Storebrand Asset Management As | 0.13% | 4,982,529 | $380,486,553 | $392,125,032 | +$11,638,479 | +3.06% | |
| Baird Financial Group, Inc. | 0.55% | 4,710,039 | $354,713,085 | $370,680,069 | +$15,966,984 | +4.50% | |
| Aqr Capital Management Llc | 0.15% | 4,424,962 | $333,243,850 | $348,244,509 | +$15,000,659 | +4.50% | |
| Dimensional Fund Advisors Lp | 0.06% | 3,978,658 | $299,645,481 | $313,120,385 | +$13,474,904 | +4.50% | |
| Invesco Ltd. | 0.05% | 3,978,207 | $299,598,748 | $313,084,891 | +$13,486,143 | +4.50% | |
| Goldman Sachs Group Inc | 0.04% | 3,590,553 | $270,404,534 | $282,576,521 | +$12,171,987 | +4.50% | |
| Northern Trust Corp | 0.03% | 3,397,365 | $255,855,559 | $267,372,626 | +$11,517,067 | +4.50% | |
| Victory Capital Management Inc | 0.15% | 3,080,883 | $232,021,299 | $242,465,492 | +$10,444,193 | +4.50% | |
| Ubs Group Ag | 0.04% | 2,634,507 | $198,404,722 | $207,335,701 | +$8,930,979 | +4.50% | |
| Wellington Management Group Llp | 0.04% | 2,512,987 | $189,253,052 | $197,772,077 | +$8,519,025 | +4.50% | |
| Bank Of America Corp | 0.01% | 2,193,987 | $165,229,189 | $172,666,777 | +$7,437,588 | +4.50% | |
| Cooke & Bieler Lp | 1.91% | 2,265,219 | $164,975,900 | $178,272,735 | +$13,296,835 | +8.06% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.03% | 2,037,462 | $153,441,265 | $160,348,259 | +$6,906,994 | +4.50% | |
| Canada Pension Plan Investment Board | 0.10% | 1,999,483 | $150,581,065 | $157,359,312 | +$6,778,247 | +4.50% | |
| Envestnet Asset Management Inc | 0.04% | 1,943,875 | $146,393,249 | $152,982,963 | +$6,589,714 | +4.50% | |
| Vanguard Fiduciary Trust Co | 0.03% | 1,766,822 | $133,059,365 | $139,048,891 | +$5,989,526 | +4.50% | |
| Royal Bank Of Canada | 0.02% | 1,715,293 | $129,180,000 | $134,993,559 | +$5,813,559 | +4.50% | |
| Barclays Plc | 0.04% | 1,571,845 | $118,375,647 | $123,704,202 | +$5,328,555 | +4.50% | |
| Legal & General Group Plc | 0.03% | 1,531,460 | $115,334,252 | $120,525,902 | +$5,191,650 | +4.50% | |
| Principal Financial Group Inc | 0.06% | 1,488,178 | $112,074,886 | $117,119,609 | +$5,044,723 | +4.50% | |
| Lazard Asset Management Llc | 0.18% | 1,481,974 | $111,607,462 | $116,631,354 | +$5,023,892 | +4.50% | |
| Deutsche Bank Ag\ | 0.04% | 1,450,415 | $109,230,753 | $114,147,661 | +$4,916,908 | +4.50% | |
| Raymond James Financial Inc | 0.03% | 1,412,485 | $106,374,196 | $111,162,570 | +$4,788,374 | +4.50% | |
| Crawford Investment Counsel Inc | 1.69% | 1,311,252 | $98,750,384 | $103,195,532 | +$4,445,148 | +4.50% | |
| Citadel Advisors Llc | 0.07% | 1,245,356 | $93,787,761 | $98,009,517 | +$4,221,756 | +4.50% | |
| Cullen Capital Management, Llc | 0.90% | 1,164,690 | $87,712,803 | $91,661,103 | +$3,948,300 | +4.50% | |
| Brandes Investment Partners, Lp | 0.61% | 1,145,912 | $86,299,118 | $90,183,274 | +$3,884,156 | +4.50% | |
| Ariel Appreciation Fund | John W. Rogers Jr. | 0.93% | 1,104,945 | $83,213,408 | $86,959,172 | +$3,745,764 | +4.50% |
| Lpl Financial Llc | 0.02% | 1,024,751 | $77,174,004 | $80,647,904 | +$3,473,900 | +4.50% | |
| Assetmark, Inc | 0.13% | 1,014,049 | $73,853,209 | $79,805,656 | +$5,952,447 | +8.06% | |
| Nuveen, Llc | 0.02% | 979,995 | $73,803,424 | $77,125,607 | +$3,322,183 | +4.50% | |
| Amundi | 0.02% | 971,699 | $73,179,982 | $76,472,711 | +$3,292,729 | +4.50% | |
| Citigroup Inc | 0.05% | 961,986 | $72,447,187 | $75,708,298 | +$3,261,111 | +4.50% | |
| National Pension Service | 0.05% | 960,483 | $72,333,975 | $75,590,012 | +$3,256,037 | +4.50% | |
| Clark Capital Management Group, Inc. | 0.43% | 924,171 | $69,599,316 | $72,732,258 | +$3,132,942 | +4.50% | |
| Swiss National Bank | 0.04% | 923,271 | $69,531,539 | $72,661,428 | +$3,129,889 | +4.50% | |
| Bnp Paribas Financial Markets | 0.05% | 909,386 | $68,485,860 | $71,568,678 | +$3,082,818 | +4.50% |
Frequently asked questions about OMC
Who owns the most OMC stock?
The largest holders of OMC are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for OMNICOM GROUP (OMC).
Is OMC widely held by superinvestors?
Many widely followed stocks like OMC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly OMC is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.