$OMC

$79.83 -$2.85 (3.45%) Close

$OMC Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 272.8M shares outstanding

Who owns OMC?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 52.0%

BlackRock, Inc. 10.5% · State Street Corp 9.0%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

1,100

-34 vs last qtr

Net shares bought

−16.9M

by institutions in Q2 2026

New / sold out

114 / 148

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +1.7M
Hotchkis & Wiley Capital Management LLC +1.5M

Biggest sellers in Q2 2026

State Street Corp −3.2M
Aqr Capital Management LLC −2.8M

Who is planning to sell?

Notices of proposed sale, last 12 months

$238K

2 notices from 1 person

Shares covered

2.7K

0.00% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Rice Linda Johnson Director $238K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−14.3%

−1.71% a year

Each share's claim on the business

+16.7%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$5.37B vs $831M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years87% 3–5 years1% 1–3 years4% Under 1 year7%

Quarterly turnover

8.0%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting OMC on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	28.6M	10.48%	−904.5K (−3.1%)	≤2021	0.0%
Shares held by quarter Peak holding29.5M (Q1'26) Change over 8 quarters+9.8M Share of the company10.480% BlackRock, Inc.'s full portfolio →
SS State Street Corp	24.6M	9.01%	−3.2M (−11.4%)	≤2021	0.1%
Shares held by quarter Peak holding27.8M (Q1'26) Change over 8 quarters+10.5M Share of the company9.010% State Street Corp's full portfolio →

BlackRock, Inc.

28.6M

% of company

10.48%

Change vs last qtr

−904.5K (−3.1%)

Held since

≤2021

State Street Corp

24.6M

% of company

9.01%

Change vs last qtr

−3.2M (−11.4%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Omnicom Group Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting OMC on Form N-PORT; together they hold 49.5% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$659M	9.1M	3.32%	0.03%	June 30, 2026
SS State Street(R) Communication Services Select Sector SPDR(R) ETF Select Sector SPDR Trust	$557M	7.7M	2.80%	2.50%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$659M

% of company

3.32%

% of the fund

0.03%

As of

June 30, 2026

State Street(R) Communication Services Select Sector SPDR(R) ETF

Select Sector SPDR Trust

Position value

$557M

% of company

2.80%

% of the fund

2.50%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Omnicom Group Inc and how much of the fund the position is.

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