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Insider buying
Bor-Zen Tien bought $301K of Taiwan Semiconductor Manufacturing Co Ltd (TSM) stock
Bor-Zen Tien, VP of Taiwan Semiconductor Manufacturing Co Ltd (TSM), bought 4,010 shares of TSM stock worth $301K, per an SEC Form 4 filed Jul 23, 2026.
It was an open-market purchase.
The trade happened on Jul 21, 2026, 2 days before it was made public.
TSM has moved +4.8% since the trade date, from $424.61 to $445.14 (Sep 21, 2026 close).
- Traded
- Jul 21, 2026
- Disclosed
- Jul 23, 2026
- Filing delay
- 2 days
- Price since
- +4.8%
- 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.