BLAIR WILLIAM & CO/IL

Position in WCN — Waste Connections, Inc.

CIK 902367 CHICAGO, IL

Position in WCN

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

Position Value

$6,600,749

-$7,109,071 QoQ

Shares Held

40,635

-48.0% QoQ

Ownership

0.016%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 98.06319830683664.ToString("F0")% Shared 0.ToString("F0")% None 1.936801693163361.ToString("F0")%

Industrials · as of Mar 31, 2026

BLAIR WILLIAM & CO/IL holds $178,565,272 across 6 Waste Management names. WCN ranks #4 (3.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	WM	Waste Management Inc	484,303	$111,287,986
2	RSG	Republic Services, Inc.	141,662	$31,026,811
3	CWST	Casella Waste Systems Inc	290,464	$23,045,413
4	WCN	Waste Connections, Inc. This page	40,635	$6,600,749
5	ONT	Onterris, Inc.	266,980	$5,844,192
6	CLH	Clean Harbors Inc	2,651	$760,121

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,600,749	40,635	-48.0%	Shares	Sole	2026-05-08
2025-12-31	$13,709,820	78,181	-8.5%	Shares	Sole	2026-02-17
2025-09-30	$15,025,098	85,467	-2.0%	Shares	Sole	2025-11-12
2025-06-30	$16,290,946	87,248	+8.0%	Shares	Sole	2025-07-24
2025-03-31	$15,771,156	80,799	-1.2%	Shares	Sole	2025-05-09
2024-12-31	$14,026,150	81,747	-1.9%	Shares	Sole	2025-02-12
2024-09-30	$14,908,581	83,372	+1.8%	Shares	Sole	2024-11-12
2024-06-30	$14,361,457	81,897	+2.5%	Shares	Sole	2024-08-12
2024-03-31	$13,743,426	79,899	-2.6%	Shares	Sole	2024-05-09
2023-12-31	$12,241,931	82,012	+5.0%	Shares	Sole	2024-02-12
2023-09-30	$10,492,590	78,128	+3.6%	Shares	Sole	2023-11-09
2023-06-30	$10,780,638	75,426	+3.1%	Shares	Sole	2023-08-11
2023-03-31	$10,174,778	73,163	+6.7%	Shares	Sole	2023-05-12
2022-12-31	$9,092,953	68,595	+37.5%	Shares	Sole	2023-02-10
2022-09-30	$6,741,095	49,886	+16.9%	Shares	Sole	2022-11-09
2022-06-30	$5,289,621	42,672	+5.3%	Shares	Sole	2022-08-10
2022-03-31	$5,661,202	40,524	+34.9%	Shares	Sole	2022-05-13
2021-12-31	$4,095,049	30,051	+31.4%	Shares	Sole	2022-02-14
2021-09-30	$2,879,515	22,866	+2.0%	Shares	Sole	2021-11-12
2021-06-30	$2,678,217	22,425	-0.0%	Shares	Sole	2021-08-12
2021-03-31	$2,422,531	22,435	-32.4%	Shares	Sole	2021-05-13
2020-12-31	$3,402,657	33,174	+4.2%	Shares	Sole	2021-02-09
2020-09-30	$3,305,511	31,845	-0.0%	Shares	Sole	2020-11-06
2020-06-30	$2,987,961	31,858	+1.0%	Shares	Sole	2020-08-12
2020-03-31	$2,443,575	31,530	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.