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 6 of 10
91 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2018-02-22 | WLK | Mixed | +8,383 | -$556.5K | EDGAR |
| 2018-02-20 | WLK | Grant (A) | — | $0 | EDGAR |
| 2017-11-30 | WLK | Mixed | — | -$3.56M | EDGAR |
| 2017-11-29 | WLKP | Buy (P) | +14,900 | $327.5K | EDGAR |
| 2017-11-28 | WLK | Mixed | — | -$2.11M | EDGAR |
| 2017-11-28 | WLKP | Buy (P) | +2,000 | $43.0K | EDGAR |
| 2017-11-28 | WLKP | Buy (P) | +10,375 | $229.5K | EDGAR |
| 2017-11-27 | WLK | Mixed | — | -$3.83M | EDGAR |
| 2017-11-27 | WLKP | Buy (P) | +2,000 | $43.0K | EDGAR |
| 2017-11-22 | WLK | Mixed | — | -$2.12M | 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.