Boston Partners

Position in OMC — Omnicom Group Inc.

CIK 1386060 BOSTON, MA

Back to OMC Full portfolio

Position in OMC

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$58,944,308

-$7,586,182 QoQ

Shares Held

782,689

-5.0% QoQ

Ownership

0.275%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 41.115308890248876.ToString("F0")% Shared 0.ToString("F0")% None 58.88469110975113.ToString("F0")%

Common Shares in OMC Over Time

Shares Held

Position Value (USD)

Position in Advertising Agencies

Communication Services · as of Mar 31, 2026

Boston Partners holds $137,565,865 across 3 Advertising Agencies names. OMC ranks #1 (42.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	OMC	Omnicom Group Inc. This page	782,689	$58,944,308
2	MGNI	Magnite, Inc.	4,719,863	$56,071,971
3	STGW	Stagwell Inc	3,584,990	$22,549,586

All Filings in OMC

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$58,944,308	782,689	-5.0%	Shares	Other	2026-05-11
2025-12-31	$66,530,490	823,907	-74.1%	Shares	Other	2026-02-13
2025-09-30	$259,458,950	3,182,374	+2.6%	Shares	Other	2025-11-13
2025-06-30	$223,215,646	3,102,803	-36.4%	Shares	Defined	2025-08-12
2025-03-31	$404,770,018	4,882,041	+18.5%	Shares	Defined	2025-05-13
2024-12-31	$354,413,386	4,119,170	-3.3%	Shares	Other	2025-02-11
2024-09-30	$440,385,051	4,259,455	+10.4%	Shares	Defined	2024-11-12
2024-06-30	$345,984,021	3,857,124	-0.5%	Shares	Defined	2024-08-14
2024-03-31	$374,931,162	3,874,857	+11.0%	Shares	Defined	2024-05-28
2023-12-31	$302,032,101	3,491,297	-6.3%	Shares	Defined	2024-02-07
2023-09-30	$277,639,168	3,727,701	+21.7%	Shares	Defined	2023-11-08
2023-06-30	$291,435,028	3,062,901	+414.5%	Shares	Other	2023-08-10
2023-03-31	$56,157,676	595,269	+68.2%	Shares	Defined	2023-05-09
2022-12-31	$28,860,607	353,814	-6.0%	Shares	Other	2023-02-08
2022-09-30	$23,736,539	376,233	-28.9%	Shares	Defined	2022-11-09
2022-06-30	$33,668,007	529,288	-12.4%	Shares	Defined	2022-08-10
2022-03-31	$51,262,341	603,939	+7.4%	Shares	Other	2022-05-10
2021-12-31	$41,198,914	562,289	+16.4%	Shares	Defined	2022-02-04
2021-09-30	$35,001,512	483,046	+11.1%	Shares	Other	2021-11-05
2021-06-30	$34,771,012	434,692	+3.6%	Shares	Defined	2021-08-12
2021-03-31	$31,099,844	419,418	+6.3%	Shares	Defined	2021-05-10
2020-12-31	$24,604,028	394,485	+0.8%	Shares	Other	2021-02-10
2020-09-30	$19,363,508	391,182	-3.5%	Shares	Defined	2020-11-13
2020-06-30	$22,144,339	405,574	-67.8%	Shares	Other	2020-08-12
2020-03-31	$69,206,830	1,260,598	—	Shares	Defined	2020-05-13
No filing history on record for this holder in this stock.