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Insider buying
Bor-Zen Tien bought $73K of Taiwan Semiconductor Manufacturing Co Ltd (TSM) stock
Bor-Zen Tien, VP of Taiwan Semiconductor Manufacturing Co Ltd (TSM), bought 1,000 shares of TSM stock worth $73K, per an SEC Form 4 filed Aug 4, 2026.
It was an open-market purchase.
The trade happened on Aug 3, 2026, 1 day before it was made public.
TSM has moved +9.6% since the trade date, from $406.11 to $445.14 (Sep 21, 2026 close).
- Traded
- Aug 3, 2026
- Disclosed
- Aug 4, 2026
- Filing delay
- 1 day
- Price since
- +9.6%
- Role
- VP
- Source
- SEC Form 4
More TSM insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.