MARSHALL WACE, LLP

Position in WLK — Westlake Corp

CIK 1318757 LONDON, X0

Position in WLK

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$8,144,902

+$3,794,019 QoQ

Shares Held

111,574

+97.6% QoQ

Ownership

0.087%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#54

of 358 holders

Holding Since

Jun 2020

13 quarters on record

Voting authority Sole 0% Shared 100% None 0%

Basic Materials · as of Jun 30, 2026

MARSHALL WACE, LLP holds $1,208,833,798 across 34 Specialty Chemicals names. WLK ranks #17 (0.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LIN	Linde PLC	508,958	$264,118,664
2	APD	Air Products & Chemicals, Inc.	618,709	$181,393,102
3	SOLS	Solstice Advanced Materials Inc.	1,668,684	$147,845,401
4	SHW	Sherwin Williams Co	398,606	$137,248,016
5	PPG	Ppg Industries Inc	1,000,270	$121,322,747
6	EMN	Eastman Chemical Co	1,412,188	$94,588,350
7	ECL	Ecolab Inc.	141,006	$39,285,680
8	LWLG	Lightwave Logic, Inc.	3,057,193	$28,921,045

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$8,144,902	111,574	+97.6%	Shares	Other	2026-08-13
2025-09-30	$4,350,883	56,461	+596.1%	Shares	Other	2025-11-13
2025-06-30	$615,868	8,111	-49.0%	Shares	Other	2025-08-13
2024-12-31	$1,824,539	15,914	-62.5%	Shares	Other	2025-02-13
2024-09-30	$6,376,203	42,426	-83.3%	Shares	Other	2024-11-14
2022-09-30	$22,013,654	253,380	+186.9%	Shares	Other	2022-11-14
2022-03-31	$10,899,305	88,325	+2115.3%	Shares	Other	2022-05-16
2021-12-31	$387,257	3,987	-60.0%	Shares	Other	2022-02-14
2021-09-30	$909,486	9,979	-37.4%	Shares	Sole	2021-11-15
2021-06-30	$1,435,764	15,937	-86.8%	Shares	Sole	2021-08-13
2021-03-31	$10,740,038	120,960	+1067.0%	Shares	Sole	2021-05-17
2020-12-31	$845,784	10,365	-88.8%	Shares	Sole	2021-02-16
2020-06-30	$4,957,474	92,404	—	Shares	Sole	2020-08-13
No filing history on record for this holder in this stock.