MARSHALL WACE, LLP

Position in WSO — Watsco Inc

CIK 1318757 LONDON, X0

Position in WSO

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$5,213,110

-$2,305,470 QoQ

Shares Held

14,330

-15.8% QoQ

Ownership

0.035%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2021

12 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

MARSHALL WACE, LLP holds $309,371,781 across 12 Industrial Distribution names. WSO ranks #6 (1.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	FERG	Ferguson Enterprises Inc. /DE/	814,697	$190,036,221
2	POOL	Pool Corp	280,710	$56,796,053
3	DNOW	DNOW Inc.	1,867,114	$22,237,326
4	WCC	Wesco International Inc	71,466	$19,554,526
5	FAST	Fastenal Co	131,948	$6,122,387
6	WSO	Watsco Inc This page	14,330	$5,213,110
7	QXO	QXO, Inc.	116,572	$2,263,827
8	XMTR	Xometry, Inc.	49,422	$2,018,394

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$5,213,110	14,330	-15.8%	Shares	Other	2026-05-15
2025-06-30	$7,518,580	17,025	-78.4%	Shares	Other	2025-08-13
2025-03-31	$40,112,493	78,915	+343.3%	Shares	Other	2025-05-15
2024-12-31	$8,435,242	17,800	+278.7%	Shares	Other	2025-02-13
2024-09-30	$2,311,836	4,700	-61.7%	Shares	Other	2024-11-14
2024-03-31	$5,305,886	12,283	+151.6%	Shares	Other	2024-05-15
2023-12-31	$2,091,790	4,882	-37.2%	Shares	Other	2024-02-14
2023-03-31	$2,473,057	7,773	+238.4%	Shares	Other	2023-05-15
2022-12-31	$572,871	2,297	-56.7%	Shares	Other	2023-02-14
2021-12-31	$1,659,201	5,303	-42.6%	Shares	Other	2022-02-14
2021-09-30	$2,446,147	9,244	-60.6%	Shares	Sole	2021-11-15
2021-03-31	$6,110,154	23,433	—	Shares	Sole	2021-05-17
No filing history on record for this holder in this stock.