LYTIR

Insider · SEC Form 4 · Controller

Chen Chih-Ho

In the 12 months to Nov 8, 2026, on the open market: bought $13K of TSM; sold $4K of TSM. Filed a median of 2 business days 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: $13K in total; Insider sales: $4K in total.Jul: Insider purchases $6KJul: Insider sales $4KAug: Insider purchases $2KSep: Insider purchases $2KOct: Insider purchases $2KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $13KInsider sales below: $4K
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 31 shares filed Oct 8, 2026 233 shares held indirectly after, as filed filing $2K
  2. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Sep 7, 2026 32 shares filed Sep 9, 2026 202 shares held indirectly after, as filed filing $2K
  3. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Aug 7, 2026 33 shares filed Aug 10, 2026 170 shares held indirectly after, as filed filing $2K
  4. TSMSold: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 14, 2026 50 shares filed Jul 16, 2026 363 shares held indirectly after, as filed filing $4K
  5. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 13, 2026 50 shares filed Jul 16, 2026 413 shares held indirectly after, as filed filing $4K
  6. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 7, 2026 31 shares filed Jul 9, 2026 137 shares held indirectly after, as filed filing $2K

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.