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Tien Bor-Zen insider trades
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Tien Bor-Zen insider trades

Tien Bor-Zen has filed 16 Form 4s with the SEC that we hold, all for Taiwan Semiconductor Manufacturing Co LTD (TSM), as VP. Across all of them we count 32 purchases worth $834.4K and 0 sales worth $0 reported on Form 4. In the last 12 months: 32 purchases ($834.4K) and 0 sales ($0). The largest single trade was a purchase of 1,000 shares of Taiwan Semiconductor Manufacturing Co LTD worth $76.6K, dated 2026-06-29. The first filing on our record is dated 2026-03-24 and the latest 2026-10-08.

Taiwan Semiconductor Manufacturing Co LTD (TSM)

VP · 16 filings · 32 purchases and sales
Trade dateCodeSharesValue as filedFiled
2026-03-22P, purchase reported on Form 41,000$55.9K2026-03-24
2026-04-09P, purchase reported on Form 49$5212026-04-13
2026-04-09P, purchase reported on Form 453$3.1K2026-04-13
2026-04-28P, purchase reported on Form 45$1.9K2026-04-29
2026-04-28P, purchase reported on Form 410$3.9K2026-04-29
2026-05-08P, purchase reported on Form 444$3.2K2026-05-11
2026-05-08P, purchase reported on Form 47$5032026-05-11
2026-05-19P, purchase reported on Form 410$3.9K2026-05-21
2026-05-19P, purchase reported on Form 41,000$69.8K2026-05-19
2026-05-19P, purchase reported on Form 41,000$70.0K2026-05-19
2026-05-20P, purchase reported on Form 47$2.8K2026-05-21
2026-06-05P, purchase reported on Form 443$3.3K2026-06-09
2026-06-05P, purchase reported on Form 47$5322026-06-09
2026-06-29P, purchase reported on Form 41,000$76.6K2026-06-30
2026-06-30P, purchase reported on Form 41,000$75.7K2026-06-30
2026-07-07P, purchase reported on Form 440$3.1K2026-07-09
2026-07-07P, purchase reported on Form 46$4602026-07-09
2026-07-20P, purchase reported on Form 410$4.0K2026-07-23
2026-07-21P, purchase reported on Form 41,000$74.1K2026-07-23
2026-07-21P, purchase reported on Form 41,000$74.0K2026-07-23
2026-07-21P, purchase reported on Form 41,000$74.4K2026-07-23
2026-07-21P, purchase reported on Form 41,000$74.8K2026-07-23
2026-07-28P, purchase reported on Form 410$3.9K2026-07-30
2026-07-28P, purchase reported on Form 45$1.9K2026-07-30
2026-07-28P, purchase reported on Form 41,000$68.0K2026-07-30
2026-08-03P, purchase reported on Form 41,000$73.1K2026-08-04
2026-08-07P, purchase reported on Form 442$3.1K2026-08-10
2026-08-07P, purchase reported on Form 47$5132026-08-10
2026-09-07P, purchase reported on Form 443$3.3K2026-09-09
2026-09-07P, purchase reported on Form 45$3812026-09-09
2026-10-07P, purchase reported on Form 440$3.2K2026-10-08
2026-10-07P, purchase reported on Form 47$5562026-10-08
Source

Counted from the Form 4 filings this reporting owner (SEC CIK 2114023) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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