TSM insider buying – Taiwan Semiconductor Manufacturing Co Ltd
23 insider purchases since 2016 worth $2.7M by 8 different insiders. Last 12 months: 23 purchases, $2.7M. Most recent filing: 2026-11-09.
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| Tien Bor-Zen Officer | $796,310 6× · 11,025 sh | 2026-03-22 2026-08-03 | – | 19,581 shares as of 2026-09-09 | Holds - never sold |
| Lin Shyue-Shyh Officer | $637,560 4× · 10,000 sh | 2026-03-29 2026-07-20 | – | 35,609 shares as of 2026-09-09 | Holds - never sold |
| Yuan Lipen Officer | $328,473 3× · 4,350 sh | 2026-06-15 2026-08-18 | – | 10,301 shares as of 2026-09-09 | Holds - never sold |
| BURNS URSULA M Director | $322,050 1× · 1,000 sh | 2026-03-31 2026-03-31 | – | 3,617 shares as of 2026-04-01 | Holds - never sold |
| SPLINTER MICHAEL R Director | $299,880 1× · 840 sh | 2026-11-05 2026-11-05 | – | – | Holds - never sold |
| Fang Shu-Hua Officer | $154,180 1× · 2,000 sh | 2026-07-02 2026-07-02 | – | 1,365,715 shares as of 2026-09-09 | Holds - never sold |
| Wei Che-Chia CEO | $67,341 6× · 943 sh | 2026-04-09 2026-09-07 | – | 8,660,366 shares as of 2026-09-09 | Holds - never sold |
| Yeap Choh Fei Officer | $55,780 1× · 1,000 sh | 2026-03-22 2026-03-22 | – | 243,384 shares as of 2026-09-09 | Holds - never sold |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 23 | $2.7M | 8 | 1 | $14.0M |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-11-09 | SPLINTER MICHAEL R | Director | 840 | $357.00 | $299,880 | +11% | SEC |
| 2026-09-09 | Wei Che-Chia | CEO | 149 | $76.20 | $11,354 | +0.8% | SEC |
| 2026-09-04 | Fang Shu-Hua | Officer | 2,000 | $77.09 | $154,180 | +32.2% | SEC |
| 2026-08-20 | Yuan Lipen | Officer | 2,350 | $74.05 | $174,023 | +50.5% | SEC |
| 2026-08-10 | Wei Che-Chia | CEO | 152 | $73.31 | $11,143 | +0.9% | SEC |
| 2026-08-04 | Tien Bor-Zen | Officer | 1,000 | $73.06 | $73,060 | +7.7% | SEC |
| 2026-07-30 | Tien Bor-Zen | Officer | 1,015 | $72.73 | $73,820 | +25.5% | SEC |
| 2026-07-23 | Tien Bor-Zen | Officer | 4,010 | $75.15 | $301,350 | +44.4% | SEC |
| 2026-07-22 | Lin Shyue-Shyh | Officer | 2,000 | $73.39 | $146,780 | +7.1% | SEC |
| 2026-07-21 | Lin Shyue-Shyh | Officer | 3,000 | $71.79 | $215,360 | +11.9% | SEC |
| 2026-07-09 | Wei Che-Chia | CEO | 146 | $76.62 | $11,187 | +0.8% | SEC |
| 2026-06-30 | Tien Bor-Zen | Officer | 2,000 | $76.17 | $152,340 | +19.9% | SEC |
| 2026-06-23 | Yuan Lipen | Officer | 1,000 | $79.19 | $79,190 | +25.0% | SEC |
| 2026-06-16 | Yuan Lipen | Officer | 1,000 | $75.26 | $75,260 | +33.3% | SEC |
| 2026-06-09 | Wei Che-Chia | CEO | 150 | $76.01 | $11,402 | +0.9% | SEC |
| 2026-05-19 | Tien Bor-Zen | Officer | 2,000 | $69.91 | $139,810 | +22.1% | SEC |
| 2026-05-11 | Wei Che-Chia | CEO | 160 | $71.82 | $11,491 | +0.9% | SEC |
| 2026-04-13 | Wei Che-Chia | CEO | 186 | $57.87 | $10,764 | +1.1% | SEC |
| 2026-04-01 | BURNS URSULA M | Director | 1,000 | $322.05 | $322,050 | +50.0% | SEC |
| 2026-03-31 | Lin Shyue-Shyh | Officer | 3,000 | $54.72 | $164,160 | +12.9% | SEC |
| 2026-03-31 | Yeap Choh Fei | Officer | 1,000 | $55.78 | $55,780 | +0.5% | SEC |
| 2026-03-30 | Lin Shyue-Shyh | Officer | 2,000 | $55.63 | $111,260 | +9.4% | SEC |
| 2026-03-24 | Tien Bor-Zen | Officer | 1,000 | $55.93 | $55,930 | +12.4% | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-19 | Chuang Tzu-Sou | Officer | 200,000 | $69.83 | $14.0M | Sale | SEC |
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
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