Tien Bor-Zen has filed 13 insider transactions across 1 company since March 2026.
Most recent transaction: a purchase of 7 shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD ($TSM) on May 20, 2026.
Activity breakdown: 12 open-market purchases and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 20, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | American Depositary Shares (TSM) | 7 | $400.00 | 107.0000 | 25,932,524,521 | 7.00% | 0.00% |
| May 19, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | American Depositary Shares (TSM) | 10 | $391.81 | 100.0000 | 25,932,524,521 | 11.11% | 0.00% |
| May 19, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | Common Shares (2330.TW) | 1000 | $69.98 | 10,256.0000 | 25,932,524,521 | 10.80% | 0.00% |
| May 19, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | Common Shares (2330.TW) | 1000 | $69.83 | 11,256.0000 | 25,932,524,521 | 9.75% | 0.00% |
| May 8, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | Common Shares (2330.TW) | 44 | $71.82 | 9,256.0000 | 25,932,524,521 | 0.48% | 0.00% |
| May 8, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | Common Shares (2330.TW) | 7 | $71.82 | 9,256.0000 | 25,932,524,521 | 0.08% | 0.00% |
| April 28, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | American Depositary Shares (TSM) | 5 | $390.00 | 90.0000 | 25,932,524,521 | 5.88% | 0.00% |
| April 28, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | American Depositary Shares (TSM) | 10 | $386.00 | 80.0000 | 25,932,524,521 | 14.29% | 0.00% |
| April 28, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | American Depositary Shares (TSM) | 5 | $390.00 | 85.0000 | 25,932,524,521 | 6.25% | 0.00% |
| April 24, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | H | Equity Linked Notes | 20000 | $0.00 | 0.0000 | 25,932,524,521 | 100.00% | 0.00% |
| April 9, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | Common Shares (2330.TW) | 9 | $57.87 | 9,205.0000 | 25,932,733,242 | 0.10% | 0.00% |
| April 9, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | Common Shares (2330.TW) | 53 | $57.87 | 9,205.0000 | 25,932,733,242 | 0.58% | 0.00% |
| March 22, 2026 | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $TSM | Tien Bor-Zen | VP | P | Common Shares (2330.TW) | 1000 | $55.93 | 9,143.0000 | 25,932,733,242 | 12.28% | 0.00% |