Albert Chao
CIK 1299403 · Executive Chairman · last filed 2026-02-23
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$8.33B
Companies
2
Total Filings
91
Lifetime Open-Market Net
-$49.38M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Recent Filings · Page 9 of 10
91 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2011-02-22 | WLK | Mixed | +3,893 | -$333.0K | EDGAR |
| 2010-03-02 | WLK | Grant (A) | +43,769 | $0 | EDGAR |
| 2010-02-26 | WLK | Tax (F) | −2,714 | -$55.3K | EDGAR |
| 2009-03-19 | WLK | Tax (F) | −496 | -$6.4K | EDGAR |
| 2009-02-18 | WLK | Grant (A) | +94,664 | $0 | EDGAR |
| 2008-09-04 | WLK | Tax (F) | −1,657 | -$32.0K | EDGAR |
| 2008-03-18 | WLK | Tax (F) | −1,239 | -$15.6K | EDGAR |
| 2008-02-21 | WLK | Grant (A) | +49,378 | $0 | EDGAR |
| 2007-09-05 | WLK | Tax (F) | −1,623 | -$43.6K | EDGAR |
| 2007-03-19 | WLK | Tax (F) | −1,084 | -$29.9K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.