Albert Chao

Albert Chao

Executive Chairman · WESTLAKE CORP

Rank #2,079 SEC EDGAR (United States) ↗ Files from United States

Details

Officer and board memberChemicalsColumbia Business SchoolWLKSEC CIK 0001299403

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Disclosed holdings
$48.1M
1-day change
▲ 0.25%
Positions on file
1
issuers disclosed in Forms 3/4/5 and Schedules 13D/G

Disclosed holdings over time 53 weekly points

What the 1 currently disclosed position would have been worth at each week’s closing price. A rising line means the shares got more valuable, not that this person bought more.

How the line is built

Share counts are as last reported to the SEC and held constant; only prices move.

2025-09-05$37.9M – $76.8M2026-09-04

Insider activity Aug 16, 2024 – Feb 20, 2026

Albert Chao is recorded in filings to the U.S. SEC via EDGAR as officer and board member, and reported 16 transactions between Aug 16, 2024 and Feb 20, 2026. The buy and sell totals below count only codes P, S.

Why the other codes are excluded

Share awards (A), shares withheld to pay tax (F), option exercises (M) and gifts (G) also appear in the table, but they are consequences of a pay package or a private transfer, not a decision to buy or sell on the open market. Counting them would turn this into a compensation ranking.

Open-market buys (code P)
None
0 purchases on file
Open-market sales (code S)
$3.00M
3 sales on file priced rows only
All reported transactions
16
every code, including awards and exercises
Pattern
Net seller in the final 12 months of the window
last 12 months of the window

Reported transactions

Price 0.00 is a real reported figure on gifts (G) and share awards (A) — not a missing number. The 19 most recent rows are grouped into 14 lines by date, company and transaction type — open a line to see every lot with its own source link.

How to read this list

Every row is one line of one Form 4 or Form 5, with the filing it came from. Where the record carries no price at all we leave the cell empty instead of guessing one.

The shares and money on a grouped line add up only the lots listed inside that line, and only when every one of them carries the figure. Where a group mixes more than one reporting currency we leave the money blank rather than convert — no source publishes the rate that conversion would need.

  1. WESTLAKE CORP WLK S Open-market sale × 2 38,873 shares $3.12M
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    31,384 $80.42 $2.52M SEC filing ↗
    7,489 $79.70 $596.9K SEC filing ↗
  2. WESTLAKE CORP WLK M Option exercise or conversionnot a buy/sell decision 38,873 shares $2.41M at $61.87 SEC filing ↗
  3. WESTLAKE CORP WLK F Shares withheld for taxesnot a buy/sell decision 2,501 shares $235.3K at $94.10 SEC filing ↗
  4. WESTLAKE CORP WLK A Grant or awardnot a buy/sell decisionreported at zero 6,193 shares $0 at $0.00 SEC filing ↗
  5. WESTLAKE CORP WLK F Shares withheld for taxesnot a buy/sell decision 5,089 shares $503.6K at $98.95 SEC filing ↗
  6. WESTLAKE CORP WLK M Option exercise or conversionnot a buy/sell decisionreported at zero 16,555 shares $0 at $0.00 SEC filing ↗
  7. WESTLAKE CORP WLK S Open-market sale × 3 40,836 shares $3.00M
    The 3 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    30,604 $73.80 $2.26M SEC filing ↗
    9,711 $72.82 $707.2K SEC filing ↗
    521 $74.44 $38.8K SEC filing ↗
  8. WESTLAKE CORP WLK M Option exercise or conversionnot a buy/sell decision 81,673 shares $3.63M at $44.42 SEC filing ↗
  9. WESTLAKE CORP WLK F Shares withheld for taxesnot a buy/sell decision 13,390 shares $1.48M at $110.54 SEC filing ↗
  10. WESTLAKE CORP WLK A Grant or awardnot a buy/sell decisionreported at zero 33,456 shares $0 at $0.00 SEC filing ↗
  11. WESTLAKE CORP WLK F Shares withheld for taxes × 2not a buy/sell decision 6,069 shares $676.8K
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    249 $112.73 $28.1K SEC filing ↗
    5,820 $111.46 $648.7K SEC filing ↗
  12. WESTLAKE CORP WLK M Option exercise or conversionnot a buy/sell decisionreported at zero 17,972 shares $0 at $0.00 SEC filing ↗
  13. WESTLAKE CORP WLK M Option exercise or conversionnot a buy/sell decision 45,298 shares $3.08M at $68.09 SEC filing ↗
  14. WESTLAKE CORP WLK D Disposition to the issuer × 2not a buy/sell decision 45,298 shares $6.64M
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    7 $147.04 $1.0K SEC filing ↗
    45,291 $146.61 $6.64M SEC filing ↗

Disclosed holdings

Shares is the amount on the form; value is that amount times the closing price shown. Rows with no closing price are left blank, so they may add up to less than the headline figure.

What is not counted here

Each row is one filing you can open. Private companies, real estate, bonds and crypto are not in SEC insider filings and are therefore not counted here.

Equity positions disclosed to the SEC, with the source filing behind each row.
Issuer Ticker Security Shares Close Value Form Reported Filing
WESTLAKE CORP WLK Common Stock 642,880 $74.79 $48.1M 4 EDGAR ↗

Other insiders at the same companies

People who also file with the SEC at a company where Albert Chao reports shares.

Sharing a filing does not mean they work together day to day — it means both names appear on the same issuer’s insider record.

Sources

The filings linked in the tables above are the sources for every figure on this page.

Portrait photograph: Staff photographer, CC BY-SA 3.0. Original file page on Wikimedia Commons ↗

Think a number here is wrong? Open the linked filing and compare — how to report it.

Profile record last refreshed Sep 8, 2026.