Omnicom Group Ownership | Who Owns Omnicom Group?

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Omnicom Group Ownership Summary

Omnicom Group is owned by 148.53% institutional investors, 0.88% insiders. Vanguard group is the largest institutional shareholder, holding 20.09% of OMC shares. NYLI Merger Arbitrage ETF is the top mutual fund, with 5.55% of its assets in Omnicom Group shares.

OMC Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Omnicom Group	148.53%	0.88%	-49.40%
Sector	Communication Services Stocks	28.85%	18.19%	52.95%
Industry	Advertising Stocks	27.72%	17.00%	55.28%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	38.93M	20.09%	$3.14B
Blackrock funding, inc. /de	29.50M	14.61%	$2.22B
State street	27.76M	13.75%	$2.11B
Blackrock	18.32M	9.35%	$1.64B
Bank of new york mellon	12.10M	5.99%	$911.11M
Jpmorgan chase	12.03M	5.96%	$906.23M
Geode capital management	9.31M	4.61%	$699.75M
Massachusetts financial services co /ma/	8.74M	4.33%	$664.85M
First eagle investment management	7.30M	3.62%	$550.00M
Morgan stanley	6.93M	3.43%	$521.56M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Sand grove capital management llp	185.28K	7.38%	$15.11M
Vazirani asset management	17.20K	5.01%	$1.40M
Edmp	61.33K	3.74%	$4.63M
Mcrae capital management	228.47K	3.57%	$17.21M
Robinson value management	64.91K	2.72%	$4.89M
Eliot finkel investment counsel	61.68K	2.53%	$4.65M
Alexander randolph advisory	35.78K	2.32%	$2.69M
Rwc asset management llp	722.86K	2.27%	$54.44M
Gmt capital	629.30K	2.16%	$47.39M
Sound shore management inc /ct/	842.96K	2.13%	$63.48M

Top Buyers

Holder	Shares	% Assets	Change
Vanguard group	38.93M	0.05%	15.22M
State street	27.76M	0.07%	4.08M
Morgan stanley	6.93M	0.03%	2.16M
Capital research global investors	6.70M	0.08%	2.00M
Vanguard fiduciary trust	1.77M	0.03%	1.77M

Top Sellers

Holder	Shares	% Assets	Change
Canada pension plan investment board	2.00M	0.10%	-3.17M
Citadel advisors	1.25M	0.02%	-2.99M
Wellington management group llp	2.51M	0.04%	-2.69M
Goldman sachs group	3.59M	0.03%	-2.52M
Fiduciary management inc /wi/	-	-	-1.78M

New Positions

Holder	Shares	% Assets	Change	Value
Vanguard fiduciary trust	1.77M	0.03%	1.77M	$133.06M
Norges bank	1.74M	0.01%	1.74M	$140.27M
Sound shore management inc /ct/	842.96K	2.13%	842.96K	$63.48M
Vanguard global advisers	688.03K	0.03%	688.03K	$51.82M
Vanguard asset management	633.91K	0.04%	633.91K	$47.74M

Sold Out

Holder	Change
Luminist capital	-1.00
Psi advisors	-1.00
Bellwether advisors	-1.00
Palouse capital management	-2.00
Crewe advisors	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	1,118	-3.87%	299,805,392	-3.58%	148	0.58%	587	-32.76%	367	92.15%
Dec 31, 2025	767	-20.19%	171,013,966	-21.85%	88	0.70%	570	20.25%	129	-61.49%
Sep 30, 2025	589	-38.45%	118,633,683	-44.43%	60	0.51%	292	-38.91%	203	-40.47%
Jun 30, 2025	943	-4.75%	212,127,986	4.61%	108	1.02%	473	-6.34%	333	3.10%
Mar 31, 2025	16	-98.33%	2,989,586	-98.46%	1	0.02%	8	-98.32%	3	-99.09%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
NYLI Merger Arbitrage ETF	10.87M	5.55%	-
State Street® CommServSelSectSPDR®ETF	14.24M	5.00%	29.19K
The Comm Svcs Sel Sect SPDR® ETF	6.84M	3.53%	43.94K
Vanguard Total Stock Mkt Idx Inv	9.88M	3.47%	23.98K
Vanguard US Total Market Shares ETF	6.19M	3.15%	4.37K
Vanguard 500 Index Investor	8.16M	2.86%	146.23K
Vanguard Institutional 500 Index Trust	5.59M	2.85%	41.60K
Vanguard Small Cap Index	7.15M	2.51%	-7.19K
L46 Fidelity Global Dividend	3.98M	2.03%	3.32K
Hartford Dividend and Growth Y	3.54M	1.83%	437.54K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 02, 2026	RICE LINDA JOHNSON	-	Sell	$114.91K
May 30, 2025	RICE LINDA JOHNSON	-	Sell	$120.71K
Oct 18, 2024	Castellaneta Andrew	SVP, Chief Accounting Officer	Sell	$54.60K
Oct 18, 2024	Castellaneta Andrew	SVP, Chief Accounting Officer	Sell	$366.56K
Aug 26, 2024	Tarlowe Rochelle M.	Senior VP and Treasurer	Sell	$297.51K

Insider Transactions Trends

Date	Buy	Sell
2027 Q3	-	-
2024 Q4	-	-
2024 Q3	-	2
2024 Q2	-	1
2024 Q1	-	2

OMC Ownership FAQ

Who Owns Omnicom Group?

Omnicom Group shareholders are primarily institutional investors at 148.53%, followed by 0.88% insiders and -49.41% retail investors. The average institutional ownership in Omnicom Group's industry, Advertising Stocks , is 27.72%, which Omnicom Group exceeds.

Who owns the most shares of Omnicom Group?

Omnicom Group’s largest shareholders are Vanguard group (38.93M shares, 20.09%), Blackrock funding, inc. /de (29.5M shares, 14.61%), and State street (27.76M shares, 13.75%). Together, they hold 48.46% of Omnicom Group’s total shares outstanding.

Does Blackrock own Omnicom Group?

Yes, BlackRock owns 9.35% of Omnicom Group, totaling 18.32M shares as of Jun 2024. This represents 0.04% of BlackRock's total assets, with a market value of 1.64B$. In the last quarter, BlackRock increased its holdings by 93.45K shares, a 0.51% change.

Who is Omnicom Group’s biggest shareholder by percentage of total assets invested?

Sand grove capital management llp is Omnicom Group’s biggest shareholder by percentage of total assets invested, with 7.38% of its assets in 185.28K Omnicom Group shares, valued at 15.11M$.

Who is the top mutual fund holder of Omnicom Group shares?

NYLI Merger Arbitrage ETF is the top mutual fund holder of Omnicom Group shares, with 5.55% of its total shares outstanding invested in 10.87M Omnicom Group shares.

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