Wei Che-Chia

CIK 2113717 · Chairman and CEO · last filed 2026-05-11

Wei Che-Chia is a Chairman and CEO who has filed 2 SEC Form 4 insider transactions across 1 company since 2026. The most recent filing shows the insider bought $11.5K of TSM on May 11, 2026. Across all open-market trades the lifetime net is +$22.3K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.31B across reported positions.

"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

$3.31B

Companies

1

Total Filings

2

Lifetime Open-Market Net

$22.3K

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.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
TSM Chairman and CEO 7,737,594 $427.92 $3.31B $22.3K 2 2026-05-11

Recent Filings

2 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-11 TSM Buy (P) +160 $11.5K EDGAR
2026-04-13 TSM Buy (P) +186 $10.8K 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.