Ku Yao-Ching

Officer · TSM

As of 2026-09-16, Ku Yao-Ching has 4 Form 4 transactions on record across 1 company — 4 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: $0Indirect: $79K$79Kas of 2026-09-16
  • Direct $0
  • Indirect $79K
TSMindirect188 sh$79K

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 · 4 trades
2026-09-07: Purchase, 47 sh ($4K)2026-08-07: Purchase, 47 sh ($3K)2026-07-07: Purchase, 46 sh ($4K)2026-06-05: Purchase, 48 sh ($4K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-09-07TSMPurchase47 @ $76.20$4K+33.3% of holding188Form 4
2026-08-07TSMPurchase47 @ $73.31$3K+50.0% of holding141Form 4
2026-07-07TSMPurchase46 @ $76.62$4K+95.8% of holding94Form 4
2026-06-05TSMPurchase48 @ $76.01$4Kownership Δ n/a48Form 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.