BLAIR WILLIAM & CO/IL

Position in OMC — Omnicom Group Inc.

CIK 902367 CHICAGO, IL

Position in OMC

as of Mar 31, 2026 · filed May 8, 2026 Compact

Position Value

$8,901,566

-$693,068 QoQ

Shares Held

118,199

-0.5% QoQ

Ownership

0.041%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 99% Shared 0% None 1%

Communication Services · as of Mar 31, 2026

BLAIR WILLIAM & CO/IL holds $67,541,487 across 5 Advertising Agencies names. OMC ranks #2 (13.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	APP	AppLovin Corp	139,951	$55,700,498
2	OMC	Omnicom Group Inc. This page	118,199	$8,901,566
3	QNST	Quinstreet, Inc	205,144	$2,463,779
4	TTD	Trade Desk, Inc.	20,020	$454,253
5	DLPN	Dolphin Entertainment, Inc.	14,552	$21,391

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$8,901,566	118,199	-0.5%	Shares	Sole	2026-05-08
2025-12-31	$9,594,634	118,819	+2.1%	Shares	Sole	2026-02-17
2025-09-30	$9,485,363	116,342	-0.9%	Shares	Sole	2025-11-12
2025-06-30	$8,443,813	117,373	+0.3%	Shares	Sole	2025-07-24
2025-03-31	$9,705,278	117,058	-1.0%	Shares	Sole	2025-05-09
2024-12-31	$10,178,359	118,298	-4.1%	Shares	Sole	2025-02-12
2024-09-30	$12,749,124	123,311	-0.6%	Shares	Sole	2024-11-12
2024-06-30	$11,125,491	124,030	-0.2%	Shares	Sole	2024-08-12
2024-03-31	$12,028,912	124,317	-3.7%	Shares	Sole	2024-05-09
2023-12-31	$11,162,644	129,033	-44.4%	Shares	Sole	2024-02-12
2023-09-30	$17,300,065	232,278	-0.2%	Shares	Sole	2023-11-09
2023-06-30	$22,143,212	232,719	-2.0%	Shares	Sole	2023-08-11
2023-03-31	$22,397,259	237,410	+1.7%	Shares	Sole	2023-05-12
2022-12-31	$19,043,821	233,466	+0.1%	Shares	Sole	2023-02-10
2022-09-30	$14,712,777	233,203	+0.4%	Shares	Sole	2022-11-09
2022-06-30	$14,775,012	232,275	+0.3%	Shares	Sole	2022-08-10
2022-03-31	$19,660,245	231,624	-2.6%	Shares	Sole	2022-05-13
2021-12-31	$17,420,968	237,764	+1.7%	Shares	Sole	2022-02-14
2021-09-30	$16,946,365	233,872	-0.5%	Shares	Sole	2021-11-12
2021-06-30	$18,794,050	234,955	-2.5%	Shares	Sole	2021-08-12
2021-03-31	$17,862,660	240,899	-2.0%	Shares	Sole	2021-05-13
2020-12-31	$15,334,849	245,869	-0.6%	Shares	Sole	2021-02-09
2020-09-30	$12,240,211	247,277	+0.9%	Shares	Sole	2020-11-06
2020-06-30	$13,379,784	245,051	+0.5%	Shares	Sole	2020-08-12
2020-03-31	$13,392,360	243,941	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.