Free · no sign-up · Q2 2026

Which funds own WLK

Westlake Corporation in the Q2 2026 filings. At least 2 of the 91 current managers on file reported a position, worth $29m between them. It is among the largest positions of fewer than a fifth of the current managers on file. Buying and selling roughly cancelled this quarter, which is what a name looks like when the argument is still live.

Managers holding: 2; at least, of 91 current
Combined value: $29m; as reported
Opened: 1; new this quarter
Added to: 0; already held
Trimmed or sold out: 2; 2 sold out entirely

Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.

Managers reporting a position

Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.

Manager	Value	Weight	Shares	Change on the quarter	Action
ExodusPoint Capital Management LP Multi-strategy · $15.5bn book	$24m	0.2%	327,195	opened327,195	New
PDT Partners LLC Quantitative · $1.9bn book	$5.5m	0.3%	75,777	-$3.3m0	Held

Sold out of this quarter

Valued at what the position was worth in the previous filing, because by this one it is gone.

Holocene Advisors LP · Long/short equity$85m held before
Rokos Capital Management LLP · Macro$7.1m held before

Ownership through time

At least 7 of the 95 managers whose filings are on file listed WLK in Q2 2026, against 6 in Q2 2013. 3 managers fewer than in Q1 2026: 2 started positions; 1 sold out, by its own filing; 4 no longer listed it among the positions read, which can mean a holding below the listed range, a filing that reported no holdings, or a filing not yet made.

Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.

Managers on file listing it

Their combined reported value

Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.

Started in Q2 2026

Largest increases, by shares

ExodusPoint Capital Management LPnew: 327,195 shares+$24m
Balyasny Asset Management LLC369,672 to 625,859 shares+$19m
Woodline Partners LP337,075 to 451,986 shares+$8.4m
Freestone Grove Partners LPnew: 27,248 shares+$2.0m

Largest decreases, by shares

Capital World Investors4,211,006 to 2,842,348 shares-$100m
First Eagle Investment Management LLC7,118 to 2,835 shares-$313k

Left it

Rokos Capital Management LLPwas $7.1m

Manager	First listed	Largest	Q2 2026
Capital World Investors	Q2 2020	$492m	$207m
Balyasny Asset Management LLC	Q2 2013	$114m	$46m
Woodline Partners LP	Q2 2025	$46m	$33m
ExodusPoint Capital Management LP	Q3 2019	$42m	$24m
PDT Partners LLC	Q3 2013	$8.9m	$5.5m
Freestone Grove Partners LP	Q2 2026	$2.0m	$2.0m
First Eagle Investment Management LLC	Q2 2022	$900k	$207k
Fidelity (FMR LLC)	Q3 2014	$794m	last listed Q2 2024
T. Rowe Price Associates Inc	Q3 2019	$326m	last listed Q1 2026
Wellington Management Group LLP	Q4 2025	$312m	last listed Q1 2026
Soroban Capital Partners LP	Q3 2016	$219m	last listed Q4 2023
Maverick Capital Ltd	Q1 2018	$214m	last listed Q4 2021
AllianceBernstein LP	Q1 2016	$212m	last listed Q4 2020
AQR Capital Management LLC	Q4 2013	$167m	last listed Q1 2024
Citadel Advisors LLC	Q4 2015	$159m	last listed Q1 2023
Millennium Management LLC	Q2 2013	$125m	last listed Q1 2025
D. E. Shaw & Co.	Q3 2013	$115m	last listed Q4 2015

What WLK is worth

Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.

Build the comp set around WLK →

How much of the picture this is

A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.

What to do with a name the funds are buying

Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.

Comps ExplorerValue it against the peers it trades beside Every managerRead any of these books in full Deal tapeWhat buyers paid for whole companies, not slices Hedge fund interviewsHow the room runs, and the stock pitch it wants

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The holdings, every quarter, and the week between

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