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 945 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	VANGUARD GROUP INC CIK 102909 · View history	$1.71B 23,811,406 shares	0.03%	+344.65K(+1.50%)Added	SEC filing ↗ Aug 11, 2025	▾
02	BlackRock, Inc. CIK 2012383 · View history	$1.47B 20,407,788 shares	0.03%	+36.52K(+0.20%)Added	SEC filing ↗ Aug 12, 2025	▾
03	STATE STREET CORP CIK 93751 · View history	$1.06B 14,564,675 shares	0.04%	-2.03M(-12.20%)Reduced	SEC filing ↗ Aug 14, 2025	▾
04	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$566.15M 7,869,786 shares	0.18%	+691.56K(+9.60%)Added	SEC filing ↗ Aug 8, 2025	▾
05	JPMORGAN CHASE & CO CIK 19617 · View history	$447.02M 6,213,705 shares	0.03%	+3.36M(+117.90%)Added	SEC filing ↗ Aug 12, 2025	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$382.72M 5,339,385 shares	0.03%	+48.87K(+0.90%)Added	SEC filing ↗ Aug 8, 2025	▾
07	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history	$371.44M 5,163,161 shares	1.20%	+4.20M(+436.80%)Added	SEC filing ↗ Aug 14, 2025	▾
08	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$346.43M 4,815,598 shares	0.06%	+333.77K(+7.40%)Added	SEC filing ↗ Aug 14, 2025	▾
09	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$324.78M 4,514,628 shares	0.06%	+1.26M(+38.50%)Added	SEC filing ↗ Aug 12, 2025	▾
10	MORGAN STANLEY CIK 895421 · View history	$304.74M 4,235,965 shares	0.02%	+580.36K(+15.90%)Added	SEC filing ↗ Aug 14, 2025	▾
11	Baird Financial Group, Inc. CIK 1648711 · View history	$297.32M 4,132,858 shares	0.52%	+236.59K(+6.10%)Added	SEC filing ↗ Aug 13, 2025	▾
12	Bank of New York Mellon Corp CIK 1390777 · View history	$275.67M 3,831,916 shares	0.05%	-182.34K(-4.50%)Reduced	SEC filing ↗ Aug 5, 2025	▾
13	FIL Ltd CIK 318989 · View history	$260.16M 3,616,315 shares	0.22%	-1.78M(-33.00%)Reduced	SEC filing ↗ Aug 14, 2025	▾
14	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$255.19M 3,547,195 shares	0.04%	+581.22K(+19.60%)Added	SEC filing ↗ Aug 14, 2025	▾
15	Beutel, Goodman & Co Ltd. CIK 1361974 · View history	$239.85M 3,333,998 shares	1.37%	-87.17K(-2.50%)Reduced	SEC filing ↗ Aug 13, 2025	▾
16	Boston Partners CIK 1386060 · Amended · View history	$223.31M 3,102,803 shares	0.25%	-1.78M(-36.40%)Reduced	SEC filing ↗ Aug 12, 2025	▾
17	Capital Research Global Investors CIK 1422848 · View history	$210.06M 2,919,873 shares	0.04%	+7.37K(+0.30%)Added	SEC filing ↗ Aug 13, 2025	▾
18	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$205.82M 2,861,083 shares	0.05%	-320.34K(-10.10%)Reduced	SEC filing ↗ Aug 12, 2025	▾
19	LAZARD ASSET MANAGEMENT LLC CIK 1207017 · View history	$204.77M 2,846,395 shares	0.28%	+471.24K(+19.80%)Added	SEC filing ↗ Aug 14, 2025	▾
20	Invesco Ltd. CIK 914208 · View history	$189.15M 2,629,233 shares	0.03%	+165.95K(+6.70%)Added	SEC filing ↗ Aug 13, 2025	▾

Showing 20 / 945 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

945

Cancelled or null records excluded

Disclosed shares

213,863,176

Not deduplicated across managers

Disclosed value

$15.41B

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. · Q2 2025

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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.