Wei Che-Chia

Director · Officer · TSM

As of 2026-09-16, Wei Che-Chia has 7 Form 4 transactions on record across 1 company — 7 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $3.2BIndirect: $7.6M$3.2Bas of 2026-09-16
  • Direct $3.2B
  • Indirect $7.6M
TSMdirect7,656,724 sh$3.2B
TSMindirect18,136 sh$7.6M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

TSM · 7 trades
2026-09-07: Purchase, 149 sh ($11K)2026-09-01: Award / grant, 204,375 sh ($0)2026-08-07: Purchase, 152 sh ($11K)2026-07-07: Purchase, 146 sh ($11K)2026-06-05: Purchase, 150 sh ($11K)2026-05-08: Purchase, 160 sh ($11K)2026-04-09: Purchase, 186 sh ($11K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-09-07TSMPurchase149 @ $76.20$11K+0.8% of holding18,136Form 4
2026-08-07TSMPurchase152 @ $73.31$11K+0.9% of holding17,987Form 4
2026-07-07TSMPurchase146 @ $76.62$11K+0.8% of holding17,835Form 4
2026-06-05TSMPurchase150 @ $76.01$11K+0.9% of holding17,689Form 4
2026-05-08TSMPurchase160 @ $71.82$11K+0.9% of holding17,539Form 4
2026-04-09TSMPurchase186 @ $57.87$11K+1.1% of holding17,379Form 4
1 award / exercise / gift record — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-01TSMAward / grant204,3757,656,724Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.