Bor-Zen Tien
Bor-Zen Tien has made 1 open-market purchase worth $4k since Oct 8, 2026, in 1 company. The latest: $4k of TSM, filed Oct 8, 2026, scored 35 out of 100.
Officer, TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
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Purchases
| Filed | Stock | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Oct 8 Form 4 (opens sec.gov) |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD · OfficerOfficer · Near 52-week low | +12% stake | 35 | $4k 47 at $79.39 |
— | — |
Questions
What stock has Bor-Zen Tien bought?
TSM (TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD), all on the open market and reported on SEC Form 4.
When did Bor-Zen Tien last buy?
Oct 8, 2026: 47 shares of TSM at $79.39, $4k in all (Form 4 (opens sec.gov)).
Has Bor-Zen Tien filed a notice of a planned sale?
Not in the filings on record. A Form 144 is the notice an insider must file before selling restricted or control shares, and it lands on EDGAR before the sale is reported.
Is Bor-Zen Tien a routine or an opportunistic buyer?
There isn't enough history to say yet.
Data as of Oct 8, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer