Westlake Corp

WLK

Exchange: NYSE
Industry: Industrial Organic Chemicals
SEC CIK: 0001262823

SEC filings (opens in a new tab)

In the last 90 days, Westlake Corp insiders filed 0 open-market purchases and 1 sale; 360 institutions reported holding it in 13F filings for Q2 2026, worth $2.90B in total; no superinvestor holds it.

Q1 2024 vs. Q4 2023

How the institutions holding Westlake Corp changed between Q4 2023 and Q1 2024.

All holders in Q1 2024 All holders in Q4 2023

13F holders of WLK: Q4 2023 compared with Q1 2024
Measure	Q4 2023	Of which not filed for Q1 2024	Q1 2024	Change
Holders	357	2	347	−8
Shares	36.0M	32.2K	34.8M	−1.23M (−3.4%)
Value	$5.04B	$4.51M	$5.29B	+$250.9M (+5.0%)

2 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (45)

Institutions that held Westlake Corp at the end of Q1 2024 but not at the end of Q4 2023.

Institutions new to WLK in Q1 2024
Institution	Shares	Value	% of portfolio
Balyasny Asset Management LLC	201,289	$30.8M	0.08%
Merewether Investment Management, LP	190,266	$29.1M	1.55%
Appian Way Asset Management LP	164,619	$25.2M	8.25%
Scopus Asset Management, L.P.	136,755	$20.9M	0.69%
Yaupon Capital Management LP	61,300	$9.37M	0.81%
Dana Investment Advisors, Inc.	23,619	$3.61M	0.12%
Susquehanna Fundamental Investments, LLC	21,294	$3.25M	0.15%
Danske Bank A/S	21,012	$3.21M	0.01%
Mn Services Vermogensbeheer B.V.	15,600	$2.38M	0.02%
Occudo Quantitative Strategies LP	12,192	$1.86M	0.33%
Resona Asset Management Co.,Ltd.	11,990	$1.83M	0.01%
Walleye Capital LLC	9,807	$1.50M	0.02%
Wealthcare Advisory Partners LLC	8,334	$1.27M	0.04%
Man Group plc	8,137	$1.24M	0.00%
IFM Investors Pty Ltd	7,093	$1.08M	0.01%
Sequent Planning LLC	4,848	$740.8K	0.27%
Cetera Investment Advisers	3,248	$496.3K	0.00%
BTC Capital Management, Inc.	2,746	$419.6K	0.04%
Custom Index Systems, LLC	2,729	$417.0K	0.24%
Walleye Trading LLC	2,008	$306.8K	0.01%
Buckingham Strategic Partners	2,004	$306.2K	0.01%
PDT Partners, LLC	1,923	$293.8K	0.03%
Prudential PLC	1,866	$285.1K	0.00%
CIBC World Markets Corp	1,574	$240.5K	0.00%
Assenagon Asset Management S.A.	1,506	$230.1K	0.00%
Trajan Wealth LLC	1,429	$218.4K	0.01%
Shelton Capital Management	1,397	$213.5K	0.01%
Meiji Yasuda Asset Management Co Ltd.	1,391	$212.5K	0.01%
Keybank National Association	1,390	$212.4K	0.00%
Avantax Advisory Services, Inc.	1,358	$207.5K	0.00%
United Capital Financial Advisers, LLC	1,332	$203.5K	0.00%
MAI Capital Management	1,311	$200.3K	0.00%
Catalyst Funds Management Pty Ltd	400	$61.1K	0.02%
Continuum Advisory, LLC	241	$37.9K	0.01%
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	156	$23.8K	0.00%
CoreCap Advisors, LLC	133	$20.3K	0.00%
Gilliland Jeter Wealth Management LLC	115	$17.6K	0.01%
Rise Advisors, LLC	113	$17.3K	0.01%
EntryPoint Capital, LLC	85	$13.0K	0.01%
Delos Wealth Advisors, LLC	12	$1.83K	0.00%
Umb Bank N A	9	$1.38K	0.00%
Valued Wealth Advisors LLC	4	$612	0.00%
Ronald Blue Trust, Inc.	4	$611	0.00%
Quest Partners LLC	4	$611	0.00%
TFC Financial Management	1	$153	0.00%

Sold out (53)

Institutions that held Westlake Corp at the end of Q4 2023 and filed for Q1 2024 without it.

Institutions that sold out of WLK in Q1 2024
Institution	Shares, Q4 2023	Value, Q4 2023
Soroban Capital Partners LP	871,479	$122.0M
Samlyn Capital, LLC	393,294	$55.0M
Winmill & Co. Inc	70,000	$9.80M
Renaissance Technologies LLC	69,000	$9.66M
Jefferies Financial Group Inc.	43,032	$6.02M
UBS Oconnor LLC	35,700	$5.00M
Pinebridge Investments, L.P.	19,510	$2.73M
Empowered Funds, LLC	16,973	$2.38M
Jump Financial, LLC	14,986	$2.10M
Aviva PLC	13,651	$1.91M
Twin Capital Management Inc	13,504	$1.89M
Quantbot Technologies LP	9,983	$1.40M
Inspire Advisors, LLC	8,818	$1.23M
PEAK6 Investments LLC	6,533	$914.4K
Tredje AP-fonden	6,317	$884.1K
Seven Eight Capital, LP	6,103	$854.2K
PAX Financial Group, LLC	5,032	$718.6K
Entropy Technologies, LP	5,114	$715.8K
Verition Fund Management LLC	4,725	$661.3K
Cambria Investment Management, L.P.	4,388	$614.1K
Greenland Capital Management LP	4,000	$559.8K
Ethic Inc.	3,900	$545.8K
SG Americas Securities, LLC	3,392	$475.0K
Synovus Financial Corp	2,645	$370.2K
CSS LLC	2,500	$349.9K
Bridgefront Capital, LLC	2,348	$328.6K
Canada Pension Plan Investment Board	2,300	$321.9K
Investors Research Corp	2,000	$279.9K
MQS Management LLC	1,800	$251.9K
Teacher Retirement System of Texas	1,760	$246.0K
Silver Oak Securities, Inc	1,490	$208.5K
Kapitalo Investimentos Ltda	1,086	$152.0K
Harvest Fund Management Co., Ltd	1,035	$145.0K
Advisory Services Network, LLC	676	$94.7K
Thompson Siegel & Walmsley LLC	627	$88.0K
Planned Solutions, Inc.	625	$87.5K
Itau Unibanco Holding S.A.	603	$84.4K
Hantz Financial Services, Inc.	184	$26.0K
TD Waterhouse Canada Inc.	126	$17.2K
ORG Partners LLC	80	$11.2K
Global Retirement Partners, LLC	77	$10.4K
AlphaMark Advisors, LLC	50	$7.00K
Exchange Traded Concepts, LLC	33	$4.62K
RFP Financial Group LLC	21	$2.94K
Impact Partnership Wealth, LLC	13	$1.82K
American National Bank	12	$1.68K
Gradient Investments LLC	11	$1.54K
Winthrop Capital Management, LLC	8	$1.12K
Glassman Wealth Services	7	$980
MCF Advisors LLC	6	$840
Your Advocates Ltd., LLP	5	$700
Group One Trading, L.P.	4	$560
Horizon Investments, LLC	4	$560

Not filed for Q1 2024 yet (2)

Institutions that held Westlake Corp at the end of Q4 2023 and haven't filed a 13F for Q1 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding WLK in Q4 2023 that haven't filed for Q1 2024
Institution	Shares, Q4 2023	Value, Q4 2023
Smith, Graham & Co., Investment Advisors, LP	32,090	$4.49M
Desjardins Global Asset Management Inc.	115	$16.1K