LYTIR

Insider · SEC Form 4 · VP

Tien Bor-Zen

In the 12 months to Nov 8, 2026, on the open market: bought $615K 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: $615K in total; Insider sales: $0 in total.Jun: Insider purchases $152KJul: Insider purchases $379KAug: Insider purchases $77KSep: Insider purchases $4KOct: Insider purchases $4KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $615KInsider 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 47 shares filed Oct 8, 2026 2 transactions filing $4K
  2. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Sep 7, 2026 48 shares filed Sep 9, 2026 2 transactions filing $4K
  3. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Aug 7, 2026 49 shares filed Aug 10, 2026 2 transactions filing $4K
  4. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Aug 3, 2026 1,000 shares filed Aug 4, 2026 14,051 shares held directly after, as filed filing $73K
  5. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 28, 2026 1,015 shares filed Jul 30, 2026 3 transactions filing $74K
  6. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 21, 2026 4,000 shares filed Jul 23, 2026 4 transactions filing $297K
  7. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 20, 2026 10 shares filed Jul 23, 2026 117 shares held directly after, as filed filing $4K
  8. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jul 7, 2026 46 shares filed Jul 9, 2026 2 transactions filing $4K
  9. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jun 30, 2026 1,000 shares filed Jun 30, 2026 1,000 shares held indirectly after, as filed filing $76K
  10. TSMBought: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Jun 29, 2026 1,000 shares filed Jun 30, 2026 12,051 shares held directly after, as filed filing $77K

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.