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.

Q4 2024 vs. Q3 2024

How the institutions holding Westlake Corp changed between Q3 2024 and Q4 2024.

All holders in Q4 2024 All holders in Q3 2024

13F holders of WLK: Q3 2024 compared with Q4 2024
Measure	Q3 2024	Of which not filed for Q4 2024	Q4 2024	Change
Holders	403	5	378	−20
Shares	33.8M	154.7K	35.3M	+1.62M (+4.8%)
Value	$5.08B	$22.6M	$4.04B	−$1.01B (−20.0%)

5 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (48)

Institutions that held Westlake Corp at the end of Q4 2024 but not at the end of Q3 2024.

Institutions new to WLK in Q4 2024
Institution	Shares	Value	% of portfolio
Deprince Race & Zollo Inc	218,279	$25.0M	0.50%
Raymond James Financial Inc	116,973	$13.4M	0.00%
Readystate Asset Management LP	115,728	$13.3M	0.56%
SG Americas Securities, LLC	100,127	$11.5M	0.05%
Drummond Knight Asset Management Pty Ltd	85,000	$9.75M	7.08%
Jain Global LLC	48,285	$5.54M	0.17%
Adage Capital Partners GP, L.L.C.	30,000	$3.44M	0.01%
Healthcare of Ontario Pension Plan Trust Fund	20,300	$2.33M	0.00%
APG Asset Management N.V.	19,900	$2.20M	0.01%
Kovitz Investment Group Partners, LLC	16,022	$1.84M	0.01%
Axq Capital, LP	12,097	$1.39M	0.62%
KLP Kapitalforvaltning AS	11,900	$1.36M	0.01%
Old Mission Capital LLC	9,165	$1.05M	0.02%
Polymer Capital Management (US) LLC	8,801	$1.01M	0.32%
Concentric Capital Strategies, LP	5,889	$675.2K	0.04%
Farringdon Capital, Ltd.	5,596	$641.6K	0.27%
Police & Firemen's Retirement System of New Jersey	4,822	$552.8K	0.01%
Dark Forest Capital Management LP	4,628	$530.6K	0.08%
Nomura Holdings Inc	4,440	$509.0K	0.00%
Transce3nd, LLC	4,406	$505.4K	0.17%
Susquehanna International Group, LLP	4,310	$494.1K	0.00%
Fieldview Capital Management, LLC	3,929	$450.5K	0.07%
Crestline Management, LP	3,648	$418.2K	0.01%
Acadian Asset Management LLC	3,201	$366.0K	0.00%
Union Bancaire Privee, UBP SA	3,346	$361.1K	0.01%
Wisconsin Wealth Advisors, LLC	2,933	$336.3K	0.50%
Avanza Fonder AB	2,680	$307.3K	0.01%
Total Wealth Planning & Management, Inc.	2,621	$300.5K	0.30%
Twinbeech Capital LP	2,292	$262.8K	0.00%
Simplex Trading, LLC	2,229	$255.0K	0.01%
Optas, LLC	1,799	$206.3K	0.04%
MAI Capital Management	1,310	$150.2K	0.00%
BI Asset Management Fondsmaeglerselskab A/S	622	$71.0K	0.00%
Natixis	195	$22.4K	0.00%
Elequin Capital LP	87	$9.97K	0.00%
Sierra Ocean, LLC	31	$3.55K	0.00%
Park Square Financial Group, LLC	28	$3.21K	0.00%
Caitong International Asset Management Co., Ltd	18	$2.06K	0.00%
Bellwether Advisors, LLC	13	$1.49K	0.00%
Hexagon Capital Partners LLC	10	$1.15K	0.00%
SWAN Capital LLC	5	$573	0.00%
Global Financial Private Client, LLC	4	$459	0.00%
Cornerstone Planning Group LLC	3	$353	0.00%
Principia Wealth Advisory, LLC	3	$344	0.00%
SBI Securities Co., Ltd.	2	$229	0.00%
Parkworth Wealth Management, Inc.	2	$229	0.00%
Activest Wealth Management	1	$115	0.00%
Cassady Schiller Wealth Management, LLC	1	$115	0.00%

Sold out (68)

Institutions that held Westlake Corp at the end of Q3 2024 and filed for Q4 2024 without it.

Institutions that sold out of WLK in Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Scopus Asset Management, L.P.	276,755	$41.6M
Point72 Asset Management, L.P.	155,703	$23.4M
Guggenheim Capital LLC	74,243	$11.2M
Contravisory Investment Management, Inc.	60,783	$9.14M
Cubist Systematic Strategies, LLC	52,129	$7.83M
Susquehanna Portfolio Strategies, LLC	32,606	$4.90M
Magnetar Financial LLC	28,872	$4.34M
STRS Ohio	27,363	$4.11M
Tudor Investment Corp Et Al	25,187	$3.79M
Edgestream Partners, L.P.	23,650	$3.55M
Aquatic Capital Management LLC	23,300	$3.50M
HRT Financial LP	22,527	$3.38M
Polar Asset Management Partners Inc.	20,700	$3.11M
Albar Capital Ltd	14,669	$2.20M
Thomist Capital Management, LP	13,800	$2.07M
Nations Financial Group Inc,	10,646	$1.60M
Point72 Hong Kong Ltd	10,059	$1.51M
Empowered Funds, LLC	10,021	$1.51M
Panagora Asset Management Inc	7,952	$1.20M
Financial Enhancement Group LLC	9,824	$1.11M
Achmea Investment Management B.V.	5,685	$855.0K
Headlands Technologies LLC	5,211	$783.2K
Advisory Services Network, LLC	4,726	$684.4K
Bridgefront Capital, LLC	4,507	$677.4K
Atria Wealth Solutions, Inc.	4,070	$611.7K
Legacy Capital Group California, Inc.	4,065	$610.9K
AXA S.A.	3,604	$541.6K
MQS Management LLC	3,411	$512.6K
Gsa Capital Partners LLP	2,796	$420.0K
Baird Financial Group, Inc.	2,765	$415.6K
Midwest Professional Planners, LTD.	2,600	$390.8K
Robeco Institutional Asset Management B.V.	2,541	$381.9K
Rockland Trust Co	2,135	$320.9K
Mariner, LLC	2,077	$312.1K
Colony Group, LLC	2,002	$301.0K
Wolverine Trading, LLC	2,003	$300.6K
Buckingham Strategic Partners	1,951	$293.2K
ClearAlpha Technologies LP	1,828	$274.7K
Brevan Howard Capital Management LP	1,793	$269.5K
McMahon Financial Advisors, LLC	1,790	$269.0K
L2 Asset Management, LLC	1,749	$262.8K
Trexquant Investment LP	1,627	$244.5K
Fractal Investments LLC	1,600	$240.5K
M&T Bank Corp	1,530	$229.9K
LMR Partners LLP	1,498	$225.1K
Wetherby Asset Management Inc	1,495	$224.7K
Avantax Advisory Services, Inc.	1,485	$223.1K
Clarius Group, LLC	1,481	$222.6K
Aaron Wealth Advisors	1,392	$209.2K
Meiji Yasuda Asset Management Co Ltd.	1,391	$209.1K
Trajan Wealth LLC	1,389	$208.8K
Point72 (DIFC) Ltd	1,378	$207.1K
Astoria Portfolio Advisors LLC.	1,424	$205.4K
Wealth Enhancement Advisory Services, LLC	1,362	$204.7K
Two Sigma Securities, LLC	1,340	$201.4K
Omers Administration Corp	1,337	$200.9K
Point72 Asia (Singapore) Pte. Ltd.	556	$83.6K
nVerses Capital, LLC	500	$75.1K
Mirae Asset Global Investments Co., Ltd.	166	$24.9K
Gilliland Jeter Wealth Management LLC	115	$17.3K
Morse Asset Management, Inc	70	$10.5K
Ronald Blue Trust, Inc.	65	$9.41K
Clearstead Advisors, LLC	58	$8.72K
Reuter James Wealth Management, LLC	32	$4.81K
Ashton Thomas Securities, LLC	10	$1.50K
Capital Performance Advisors LLP	7	$1.05K
Claris Advisors, LLC	4	$601
Global Retirement Partners, LLC	1	$150

Not filed for Q4 2024 yet (5)

Institutions that held Westlake Corp at the end of Q3 2024 and haven't filed a 13F for Q4 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding WLK in Q3 2024 that haven't filed for Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Scout Investments, Inc.	109,123	$15.7M
Raymond James & Associates	19,420	$2.92M
Fort Pitt Capital Group, LLC	16,001	$2.40M
B. Metzler seel. Sohn & Co. Holding AG	9,000	$1.35M
PEAK6 Investments LLC	1,189	$178.7K