Insider buying is too small to be informative. Monitor for larger C-suite purchases or a material increase in buy volume before reading any signal. The gift of 500K shares is a non-cash event with no market impact.
Price Chart
Executive Summary
Two TSM vice presidents made small open-market purchases totaling $156K over a one-week window, while a third VP gifted 500K shares (non-cash). The buy dollar amounts are trivial relative to TSM's $2.24T market cap (<0.00001%), making this a routine cluster with no material signal. The gift has zero economic impact.
Key Financial Metrics
Key Facts
- VP Tien Bor-Zen bought 2,000 shares total (~$152K) on June 29-30, 2026
- VP Yuan Lipen bought 1,000 shares (~$79K) on June 22, 2026
- VP Chuang Tzu-Sou gifted 500,000 shares at $0 on June 24, 2026 (non-cash)
- Total open-market buy value of $156K is <0.00001% of TSM's $2.24T market cap
- No C-suite (CEO/CFO) participation in the cluster
Financial Impact
Total open-market purchases of $156K — immaterial relative to $2.24T market cap
Risk Factors
- No material insider conviction signal from these tiny purchases
- Gift of 500K shares could precede future selling by the recipient, but timing is unknown
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-TSM-1782815106134 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 22, 2026 4d ago | Institutional Cluster | $418.51 | awaiting T+20 | — | $424.37 (+1.40%) |
Oct 22, 2026 5d ago | 6-K | $412.35 | awaiting T+20 | — | $424.37 (+2.91%) |
Oct 15, 2026 12d ago | 6-K | $422.25 | awaiting T+20 | — | $424.37 (+0.50%) |
Oct 12, 2026 15d ago | Institutional Cluster | $444.35 | awaiting T+20 | — | $424.37 (−4.50%) |
Oct 8, 2026 19d ago | 6-K | $457.99 | awaiting T+20 | — | $424.37 (−7.34%) |
Sep 24, 2026 4w ago | 6-K | $451.15 $412.35 | ▼ −8.60% | ▼ −8.18% | $424.37 (−5.94%) |
Sep 10, 2026 6w ago | 6-K | $428.03 $457.99 | ▲ +7.00% | ▲ +4.88% | $424.37 (−0.86%) |
Sep 9, 2026 6w ago | Insider Cluster | $435.36 $472.20 | ▲ +8.46% | ▲ +6.52% | $424.37 (−2.52%) |
Sep 4, 2026 7w ago | Insider Cluster | $428.91 $485.80 | ▲ +13.26% | ▲ +12.66% | $424.37 (−1.06%) |
Sep 1, 2026 8w ago | 6-K | $414.00 $456.19 | ▲ +10.19% | ▲ +9.87% | $424.37 (+2.50%) |
US Market Status
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