Tien Bor-Zen
VPSEC Form 4 insider transaction history, cleaned and classified by FilingIQ.
Total trades
33
Last 180 days
30
Last trade
Oct 7, 2026
Recent tickers traded
Latest filings by Tien Bor-Zen
TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
P Jul 28, 2026
TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
P Jul 20, 2026
TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
P May 19, 2026
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Activity overview
FilingIQ has indexed 33 SEC Form 4 insider transactions associated with Tien Bor-Zen. The most recent transaction is dated Oct 7, 2026.
Frequently asked
- How many Form 4 transactions has Tien Bor-Zen filed?
- FilingIQ has indexed 33 SEC Form 4 insider transactions associated with Tien Bor-Zen. The most recent transaction is dated Oct 7, 2026. Every filing sources back directly to SEC EDGAR.
- What does FilingIQ show for Tien Bor-Zen's trades?
- Each open-market purchase and sale carries the same seven facts: its size in Tien Bor-Zen's own history at that company, the change in holdings, the previous trade, other insiders at the company in the 30 days before, the Rule 10b5-1 plan answer, the reporting time and other companies. FilingIQ does not rate the trades. The rules are at /methodology.
- Which companies has Tien Bor-Zen traded?
- Most recent trading activity covers TSM. The full Form 4 history including older issuers is available on the FilingIQ web app.
- Where does FilingIQ's insider data come from?
- Every Form 4 transaction shown on this page is parsed directly from SEC EDGAR XML filings. Insider identity is normalized across CIK changes, name spellings, and indirect / related-party reporting.
Methodology & sources
All Form 4 transactions parsed directly from public SEC EDGAR XML filings. How lines are classified and which facts FilingIQ adds is documented on methodology. Compiled by Thomas Kraaibeek. Not investment advice; see disclaimer.