Tien Bor-Zen: insider trades.
Tien Bor-Zen reported 15 non-derivative transactions on 6 SEC ownership filings in Q3 2026: 15 open-market purchases ($459K) and 0 sales, across 1 company.
- Transactions
- 15
- Purchases (P)
- 15
- Sales (S)
- 0
- Companies
- 1
- Name as filed
- Tien Bor-Zen
Companies
| Company | Relationship | Transactions |
|---|---|---|
| Taiwan Semiconductor Manufacturing Co Ltd (TSM) | Officer · VP | 15 |
Transactions
| Date | Company | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-07 | Taiwan Semiconductor Manufacturing Co Ltd | P | 43 | $76.2 | 313 | Form 4 |
| 2026-09-07 | Taiwan Semiconductor Manufacturing Co Ltd | P | 5 | $76.2 | 85 | Form 4 |
| 2026-08-07 | Taiwan Semiconductor Manufacturing Co Ltd | P | 42 | $73.31 | 270 | Form 4 |
| 2026-08-07 | Taiwan Semiconductor Manufacturing Co Ltd | P | 7 | $73.31 | 80 | Form 4 |
| 2026-08-03 | Taiwan Semiconductor Manufacturing Co Ltd | P | 1,000 | $73.06 | 14,051 | Form 4 |
| 2026-07-28 | Taiwan Semiconductor Manufacturing Co Ltd | P | 10 | $390 | 127 | Form 4 |
| 2026-07-28 | Taiwan Semiconductor Manufacturing Co Ltd | P | 5 | $390 | 132 | Form 4 |
| 2026-07-28 | Taiwan Semiconductor Manufacturing Co Ltd | P | 1,000 | $67.97 | 5,000 | Form 4 |
| 2026-07-21 | Taiwan Semiconductor Manufacturing Co Ltd | P | 1,000 | $74.13 | 13,051 | Form 4 |
| 2026-07-21 | Taiwan Semiconductor Manufacturing Co Ltd | P | 1,000 | $74.75 | 4,000 | Form 4 |
| 2026-07-21 | Taiwan Semiconductor Manufacturing Co Ltd | P | 1,000 | $74.44 | 3,000 | Form 4 |
| 2026-07-21 | Taiwan Semiconductor Manufacturing Co Ltd | P | 1,000 | $73.98 | 2,000 | Form 4 |
| 2026-07-20 | Taiwan Semiconductor Manufacturing Co Ltd | P | 10 | $405 | 117 | Form 4 |
| 2026-07-07 | Taiwan Semiconductor Manufacturing Co Ltd | P | 6 | $76.62 | 73 | Form 4 |
| 2026-07-07 | Taiwan Semiconductor Manufacturing Co Ltd | P | 40 | $76.62 | 228 | Form 4 |
Questions
What stock did Tien Bor-Zen buy or sell?
Tien Bor-Zen reported 15 non-derivative transactions on 6 SEC ownership filings in Q3 2026: 15 open-market purchases ($459K) and 0 sales, across 1 company.
Is Tien Bor-Zen the same person as other filers with this name?
This page covers SEC CIK 2114023 only. The SEC assigns each reporting owner a CIK, and people with the same name have different CIKs.
Source: SEC Insider Transactions Data Sets, Q3 2026. Reported as filed; we do not assess intent, performance or compliance. All filings for this CIK on SEC.gov.
Plain-text version for agents and LLMs: /insiders/tien-bor-zen-2114023.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.