Tien Bor-Zen
VP
Tien Bor-Zen has filed 13 SEC Form 4 filings (29 transaction rows) across 1 company, with disclosures dating back to 2026. 13 of those filings fall inside the rolling window. Most recent filing: Aug 10, 2026.
Companies traded
Insider Buying
$827K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| TSM | VP | Purchase | 49 | $4K | Aug 10 | SEC ↗ | |
| TSM | VP | Purchase | 1,000 | $73K | Aug 4 | SEC ↗ | |
| TSM | VP | Purchase | 1,015 | $74K | Jul 30 | SEC ↗ | |
| TSM | VP | Purchase | 4,000 | $297K | Jul 23 | SEC ↗ | |
| TSM | VP | Purchase | 10 | $4K | Jul 23 | SEC ↗ | |
| TSM | VP | Purchase | 46 | $4K | Jul 9 | SEC ↗ | |
| TSM | VP | Purchase | 1,000 | $77K | Jun 30 | SEC ↗ | |
| TSM | VP | Purchase | 1,000 | $76K | Jun 30 | SEC ↗ | |
| TSM | VP | Purchase | 50 | $4K | Jun 9 | SEC ↗ | |
| TSM | VP | Purchase | 2,010 | $144K | May 21 | SEC ↗ | |
| TSM | VP | Purchase | 7 | $3K | May 21 | SEC ↗ | |
| TSM | VP | Purchase | 51 | $4K | May 11 | SEC ↗ | |
| TSM | VP | Purchase | 15 | $6K | Apr 29 | SEC ↗ | |
| TSM | VP | Purchase | 62 | $4K | Apr 13 | SEC ↗ | |
| TSM | VP | Purchase | 1,000 | $56K | Mar 24 | SEC ↗ |