Company · Ownership research

OMNICOM GROUP INC. OMC

CIK 0000029989 · CUSIP 681919106

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 681919106 (OMC), not CUSIP 681919956 (OMC), CUSIP 681919906 (OMC), and does not merge CUSIPs.

This page lists the top 20 of 1,136 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$2.22B 29,498,159 shares	0.04%	+315.43K(+1.10%)Added	SEC filing ↗ May 13, 2026	▾
02	STATE STREET CORP CIK 93751 · View history	$2.11B 27,760,218 shares	0.07%	+4.08M(+17.20%)Added	SEC filing ↗ May 15, 2026	▾
03	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$1.53B 20,295,276 shares	0.04%	—	SEC filing ↗ May 15, 2026	▾
04	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$1.12B 14,840,407 shares	0.06%	—	SEC filing ↗ May 8, 2026	▾
05	Bank of New York Mellon Corp CIK 1390777 · View history	$911.11M 12,098,191 shares	0.17%	+814.33K(+7.20%)Added	SEC filing ↗ May 5, 2026	▾
06	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$906.23M 12,031,678 shares	0.06%	+1.47M(+13.90%)Added	SEC filing ↗ May 13, 2026	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$699.75M 9,313,917 shares	0.04%	+735.84K(+8.60%)Added	SEC filing ↗ May 15, 2026	▾
08	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$664.85M 8,736,665 shares	0.22%	+866.23K(+11.00%)Added	SEC filing ↗ May 14, 2026	▾
09	First Eagle Investment Management, LLC CIK 1325447 · Amended · View history	$550.00M 7,303,113 shares	0.93%	+951.08K(+15.00%)Added	SEC filing ↗ May 14, 2026	▾
10	MORGAN STANLEY CIK 895421 · View history	$521.56M 6,925,544 shares	0.03%	+2.16M(+45.20%)Added	SEC filing ↗ May 15, 2026	▾
11	Capital Research Global Investors CIK 1422848 · View history	$504.22M 6,695,199 shares	0.08%	+2.00M(+42.70%)Added	SEC filing ↗ May 13, 2026	▾
12	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$480.17M 6,357,489 shares	0.07%	+24.79K(+0.40%)Added	SEC filing ↗ May 15, 2026	▾
13	FMR LLC CIK 315066 · View history	$452.48M 6,008,267 shares	0.02%	+1.63M(+37.30%)Added	SEC filing ↗ May 15, 2026	▾
14	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history	$404.87M 5,376,034 shares	1.25%	-142.02K(-2.60%)Reduced	SEC filing ↗ May 15, 2026	▾
15	Baird Financial Group, Inc. CIK 1648711 · View history	$354.71M 4,710,039 shares	0.55%	+355.71K(+8.20%)Added	SEC filing ↗ May 14, 2026	▾
16	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$333.24M 4,424,962 shares	0.15%	+719.15K(+19.40%)Added	SEC filing ↗ May 15, 2026	▾
17	Beutel, Goodman & Co Ltd. CIK 1361974 · View history	$310.91M 4,128,466 shares	2.11%	-1.50M(-26.60%)Reduced	SEC filing ↗ May 15, 2026	▾
18	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$299.65M 3,978,658 shares	0.06%	-842.32K(-17.50%)Reduced	SEC filing ↗ May 7, 2026	▾
19	Invesco Ltd. CIK 914208 · Amended · View history	$299.60M 3,978,207 shares	0.03%	+174.69K(+4.60%)Added	SEC filing ↗ May 12, 2026	▾
20	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$270.40M 3,590,553 shares	0.04%	-2.52M(-41.20%)Reduced	SEC filing ↗ May 15, 2026	▾

Showing 20 / 1,136 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

1,136

Cancelled or null records excluded

Disclosed shares

307,247,533

Not deduplicated across managers

Disclosed value

$23.17B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

OMNICOM GROUP INC. · Q1 2026

Explore all 1,136 reporting institutions.

This page includes 20 of 1,136 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.