BT
Insider buying
Bor-Zen Tien bought $4K of TSM stock
Bor-Zen Tien, VP of Taiwan Semiconductor Manufacturing Co Ltd (TSM), bought 47 shares of TSM stock worth $4K, per an SEC Form 4 filed Oct 8, 2026.
It was an open-market purchase.
The trade happened on Oct 7, 2026, 1 day before it was made public.
TSM has moved -8.6% since the trade date, from $472.20 to $431.81 (Oct 29, 2026 close).
- Traded
- Oct 7, 2026
- Disclosed
- Oct 8, 2026
- Filing delay
- 1 day
- Price since
- -8.6%
- 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.