AlphaYouBT
Insider buying
Bor-Zen Tien bought $4K of Taiwan Semiconductor Manufacturing Co Ltd (TSM) stock
Bor-Zen Tien, VP of Taiwan Semiconductor Manufacturing Co Ltd (TSM), bought 49 shares of TSM stock worth $4K, per an SEC Form 4 filed Aug 10, 2026.
It was an open-market purchase.
The trade happened on Aug 7, 2026, 3 days before it was made public.
TSM has moved +6.0% since the trade date, from $420.04 to $445.14 (Sep 21, 2026 close).
- Traded
- Aug 7, 2026
- Disclosed
- Aug 10, 2026
- Filing delay
- 3 days
- Price since
- +6.0%
- 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.