THOMIST CAPITAL MANAGEMENT, LP WLK — WESTLAKE CORPORATION

Ownership history in THOMIST CAPITAL MANAGEMENT, LP  ·  5 quarters on record

AI Ownership Summary

THOMIST CAPITAL MANAGEMENT, LP reported WESTLAKE CORPORATION (WLK) in 5 quarterly 13F filings from 2024 Q3 through 2025 Q4. Peak portfolio weight reached 2.03% in 2025 Q2. The latest visible filing shows WLK at 1.78% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this WLK ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was THOMIST CAPITAL MANAGEMENT, LP's position in WESTLAKE CORPORATION, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

WLK was reported at 1.78% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
2.03% in 2025 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q3 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

WLK stock page THOMIST CAPITAL MANAGEMENT, LP fund profile THOMIST CAPITAL MANAGEMENT, LP full holdings
How THOMIST CAPITAL MANAGEMENT, LP held WLK — position size vs. price
% of Fund (quarterly)    WLK price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 5 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED — — — 111,900 +65,700 +142.2% 1.78% $8.4M 2026-02-14 (Est.) $99.58
2025 Q3 REDUCED 35.5% -2.6% ✅ 46,200 -25,400 -35.5% 0.70% $3.6M 2025-11-14 $61.71
2025 Q2 ADDED — — — 71,600 +25,500 +55.3% 2.03% $5.5M 2025-08-13 $83.34
2025 Q1 ADDED — — — 46,100 +32,300 +234.1% 1.80% $4.6M 2025-05-14 $80.39
2024 Q3 INITIATED — — — 13,800 — — 0.41% $2.1M 2024-11-14 $122.26

🏢 Other funds also holding WLK

As of 2026 Q1 — sorted by position size

AGMAN CAPITAL LLC 6.72% DEPRINCE RACE & ZOLLO INC 3Y 7Y 0.45% MFA WEALTH ADVISORS, LLC 3Y 7Y 0.05% BI Asset Management Fondsmaeglerselskab A/S 3Y 0.05% ProShare Advisors LLC 3Y 7Y 0.05% Unison Advisors LLC 3Y 7Y 0.05% Inspire Investing, LLC 3Y 7Y 0.03% AlphaQuest LLC 0.02% Brooklyn Investment Group 0.02% Louisiana State Employees Retirement System 3Y 7Y 0.02%

FAQ About THOMIST CAPITAL MANAGEMENT, LP and WLK

These are the practical questions this page is built to answer before you even open the full history table.

How long has THOMIST CAPITAL MANAGEMENT, LP reported owning WLK?

THOMIST CAPITAL MANAGEMENT, LP reported WLK across 5 quarterly 13F filings, from 2024 Q3 through 2025 Q4.

What was the largest reported WLK position in THOMIST CAPITAL MANAGEMENT, LP's portfolio?

The largest reported portfolio weight for WLK was 2.03% in 2025 Q2.

What is the latest reported WLK position on this page?

The most recent filing on this page is 2025 Q4, when THOMIST CAPITAL MANAGEMENT, LP reported 111,900 shares, equal to 1.78% of portfolio, with an estimated market value of $8.4M.

What does the chart on this WLK ownership page compare?

The chart compares THOMIST CAPITAL MANAGEMENT, LP's quarterly WLK portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did THOMIST CAPITAL MANAGEMENT, LP time their WLK position?

Based on 13F filing dates vs. subsequent WLK price moves, THOMIST CAPITAL MANAGEMENT, LP correctly timed 1 out of 4 reported position changes (25%). The annualised alpha on WLK relative to SPY over the holding period was -24.9%.

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