LYTIR

Insider · SEC Form 4 · VP

Ku Yao-Ching

In the 12 months to Nov 8, 2026, on the open market: bought $14K of TSM. Filed a median of 1 business day after the trade.

Open-market purchases and sales this filer reported on SEC Form 4, by the day traded. Insiders have two business days to file. A sale marked 10b5-1 was made under a plan adopted in advance. How to read these

Insider purchases and sales, by month (last 12 months)Insider purchases: $14K in total; Insider sales: $0 in total.Jul: Insider purchases $4KAug: Insider purchases $3KSep: Insider purchases $4KOct: Insider purchases $4KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $14KInsider sales below: $0
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.
  1. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Oct 7, 2026 46 shares filed Oct 8, 2026 234 shares held indirectly after, as filed filing $4K
  2. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Sep 7, 2026 47 shares filed Sep 9, 2026 188 shares held indirectly after, as filed filing $4K
  3. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Aug 7, 2026 47 shares filed Aug 10, 2026 141 shares held indirectly after, as filed filing $3K
  4. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 7, 2026 46 shares filed Jul 9, 2026 94 shares held indirectly after, as filed filing $4K

Source: SEC Form 4 filings. Value is shares × the price reported on the filing; a filing whose price failed Lytir's check against the market price is left out, and a trade that related owners reported on separate forms is counted once. Filings can be late, amended or wrong at the source; see methodology.