Boston Partners

Position in STGW — Stagwell Inc

CIK 1386060 BOSTON, MA

Position in STGW

as of Jun 30, 2026 · filed Aug 4, 2026 Compact

Position Value

$25,695,472

+$3,145,886 QoQ

Shares Held

3,458,341

-3.5% QoQ

Ownership

1.41%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

of 179 holders

Holding Since

Dec 2023

11 quarters on record

Voting authority Sole 94% Shared 0% None 6%

Communication Services · as of Jun 30, 2026

Boston Partners holds $213,898,434 across 4 Advertising Agencies names. STGW ranks #3 (12.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MGNI	Magnite, Inc.	5,013,835	$95,162,587
2	OMC	Omnicom Group Inc.	1,042,018	$75,890,169
3	STGW	Stagwell Inc This page	3,458,341	$25,695,472
4	LFTO	Liftoff Mobile, Inc.	713,997	$17,150,206

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$25,695,472	3,458,341	-3.5%	Shares	Defined	2026-08-04
2026-03-31	$22,549,586	3,584,990	+17.1%	Shares	Defined	2026-05-11
2025-12-31	$14,973,551	3,062,076	-6.5%	Shares	Defined	2026-02-13
2025-09-30	$18,444,082	3,276,036	+0.1%	Shares	Other	2025-11-13
2025-06-30	$14,732,333	3,273,852	+40.9%	Shares	Defined	2025-08-12
2025-03-31	$14,053,780	2,322,939	-0.5%	Shares	Defined	2025-05-13
2024-12-31	$15,355,041	2,333,593	+4.5%	Shares	Defined	2025-02-11
2024-09-30	$15,670,570	2,232,275	+29.1%	Shares	Other	2024-11-12
2024-06-30	$11,792,978	1,729,176	-4.5%	Shares	Other	2024-08-14
2024-03-31	$11,267,535	1,811,501	-5.7%	Shares	Other	2024-05-28
2023-12-31	$12,732,052	1,920,370	—	Shares	Other	2024-02-07
No filing history on record for this holder in this stock.