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 988 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	$1.95B 23,466,754 shares	0.04%	+424.94K(+1.80%)Added	SEC filing ↗ May 9, 2025	▾
02	BlackRock, Inc. CIK 2012383 · View history	$1.69B 20,371,271 shares	0.04%	+949.03K(+4.90%)Added	SEC filing ↗ May 2, 2025	▾
03	STATE STREET CORP CIK 93751 · View history	$1.39B 16,590,845 shares	0.06%	+2.07M(+14.20%)Added	SEC filing ↗ May 15, 2025	▾
04	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$595.15M 7,178,226 shares	0.20%	+1.21M(+20.20%)Added	SEC filing ↗ May 2, 2025	▾
05	FIL Ltd CIK 318989 · View history	$447.42M 5,396,469 shares	0.43%	-148.96K(-2.70%)Reduced	SEC filing ↗ May 12, 2025	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$437.45M 5,290,517 shares	0.03%	+138.81K(+2.70%)Added	SEC filing ↗ May 13, 2025	▾
07	Boston Partners CIK 1386060 · View history	$402.60M 4,882,041 shares	0.49%	+762.87K(+18.50%)Added	SEC filing ↗ May 13, 2025	▾
08	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$371.59M 4,481,829 shares	0.07%	-6.27M(-58.30%)Reduced	SEC filing ↗ May 13, 2025	▾
09	Bank of New York Mellon Corp CIK 1390777 · View history	$332.82M 4,014,251 shares	0.07%	-2.70M(-40.20%)Reduced	SEC filing ↗ Apr 29, 2025	▾
10	Baird Financial Group, Inc. CIK 1648711 · View history	$323.04M 3,896,270 shares	0.62%	+1.20M(+44.50%)Added	SEC filing ↗ May 15, 2025	▾
11	MORGAN STANLEY CIK 895421 · View history	$303.09M 3,655,607 shares	0.02%	+712.27K(+24.20%)Added	SEC filing ↗ May 15, 2025	▾
12	Beutel, Goodman & Co Ltd. CIK 1361974 · Amended · View history	$283.65M 3,421,164 shares	1.63%	+19.27K(+0.60%)Added	SEC filing ↗ May 14, 2025	▾
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history	$270.24M 3,259,431 shares	0.05%	+49.80K(+1.60%)Added	SEC filing ↗ Sep 15, 2025	▾
14	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$263.70M 3,181,425 shares	0.07%	+279.26K(+9.60%)Added	SEC filing ↗ May 13, 2025	▾
15	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$245.91M 2,965,974 shares	0.05%	+887.41K(+42.70%)Added	SEC filing ↗ May 16, 2025	▾
16	Capital Research Global Investors CIK 1422848 · View history	$241.48M 2,912,501 shares	0.05%	+4.52K(+0.20%)Added	SEC filing ↗ May 12, 2025	▾
17	JPMORGAN CHASE & CO CIK 19617 · View history	$236.40M 2,851,294 shares	0.02%	+704.27K(+32.80%)Added	SEC filing ↗ May 12, 2025	▾
18	Pacer Advisors, Inc. CIK 1616667 · View history	$227.51M 2,744,080 shares	0.54%	+2.73M(+17,506.10%)Added	SEC filing ↗ May 6, 2025	▾
19	FMR LLC CIK 315066 · View history	$204.82M 2,470,440 shares	0.01%	+459.89K(+22.90%)Added	SEC filing ↗ May 12, 2025	▾
20	Invesco Ltd. CIK 914208 · View history	$204.23M 2,463,287 shares	0.04%	-343.01K(-12.20%)Reduced	SEC filing ↗ May 12, 2025	▾

Showing 20 / 988 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

988

Cancelled or null records excluded

Disclosed shares

203,402,033

Not deduplicated across managers

Disclosed value

$16.85B

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 2025

Explore all 988 reporting institutions.

This page includes 20 of 988 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.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 988 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"681919106","quarter":"2025Q1","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

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.