Insider record · § VP
Tien Bor-Zen insider buys
Every disclosed SEC Form 4 open-market purchase by Tien Bor-Zen (VP · TSM), with the stock's move after each filing. Disclosures are public record; returns are informational, not investment advice.
Disclosed buys
1
Total bought
$152K
Avg Δ7d
−5.0%
Win rate · 7d
0%
Avg Δ30d
—
Last filing
2026-06-30
Buy history
| Filed | Ticker | Company | Value | Price @ | Δ1d | Δ7d | Δ30d |
|---|---|---|---|---|---|---|---|
| 2026-06-30 | TSM | Taiwan Semiconductor Manufacturing Co Ltd | $152K | $455.10 | −2.4% | −5.0% | — |