The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 19, 2026 | Yuan Lipen | VP | Buy(P) | 1K | $73.77 | $74K |
| Aug 18, 2026 | Yuan Lipen | VP | Buy(P) | 350 | $73.58 | $26K |
| Aug 18, 2026 | Yuan Lipen | VP | Buy(P) | 1K | $74.50 | $75K |
| Aug 7, 2026 | Ku Yao-Ching | VP | Buy(P) | 47 | $73.31 | $3K |
| Aug 7, 2026 | He Jun | VP | Buy(P) | 46 | $73.31 | $3K |
| Aug 7, 2026 | Chuang Tzu-Sou | VP | Buy(P) | 47 | $73.31 | $3K |
| Aug 7, 2026 | Hou Yung-Chin | SVP and Deputy Co-COO | Buy(P) | 63 | $73.31 | $5K |
| Aug 7, 2026 | Chuang Juiping | VP | Buy(P) | 49 | $73.31 | $4K |
| Aug 7, 2026 | Fang Shu-Hua | SVP and GC | Buy(P) | 57 | $73.31 | $4K |
| Aug 7, 2026 | Chang Tzonz-Sheng | SVP | Buy(P) | 54 | $73.31 | $4K |
| Aug 7, 2026 | Chen Chih-Ho | Controller | Buy(P) | 33 | $73.31 | $2K |
| Aug 7, 2026 | Chen Pei-Hung | VP | Buy(P) | 46 | $73.31 | $3K |
| Aug 7, 2026 | Cao Min | VP | Buy(P) | 55 | $73.31 | $4K |
| Aug 7, 2026 | Chin Yung-Pei | EVP and Co-COO | Buy(P) | 72 | $73.31 | $5K |
| Aug 7, 2026 | Mii Yuh-Jier | EVP and Co-COO | Buy(P) | 72 | $73.31 | $5K |
| Aug 7, 2026 | Wang Ying-Lang | SVP | Buy(P) | 55 | $73.31 | $4K |
| Aug 7, 2026 | Wei Che-Chia | Chairman and CEO, Director | Buy(P) | 152 | $73.31 | $11K |
| Aug 7, 2026 | Wu Shien-Yang | SVP | Buy(P) | 57 | $73.31 | $4K |
| Aug 7, 2026 | Tien Bor-Zen | VP | Buy(P) | 42 | $73.31 | $3K |
| Aug 7, 2026 | Tien Bor-Zen | VP | Buy(P) | 7 | $73.31 | $513 |
| Aug 7, 2026 | Lin Chris Horng-Dar | VP and CIO | Buy(P) | 49 | $73.31 | $4K |
| Aug 7, 2026 | Lu Lee-Chung | VP | Buy(P) | 52 | $73.31 | $4K |
| Aug 7, 2026 | Lin Shyue-Shyh | VP | Buy(P) | 47 | $73.31 | $3K |
| Aug 7, 2026 | Lee Chun-Hsien | SVP | Buy(P) | 54 | $73.31 | $4K |
| Aug 7, 2026 | Lu Chin-Sheng | VP | Buy(P) | 39 | $73.31 | $3K |
| Aug 7, 2026 | Jang Syun-Ming | VP | Buy(P) | 50 | $73.31 | $4K |
| Aug 7, 2026 | Hsu Kuo-Chin | VP | Buy(P) | 54 | $73.31 | $4K |
| Aug 7, 2026 | Huang Jen-Chau | SVP and CFO | Buy(P) | 29 | $73.31 | $2K |
| Aug 7, 2026 | Hwang Yuan-Ko | VP | Buy(P) | 40 | $73.31 | $3K |
| Aug 7, 2026 | Yeap Choh Fei | SVP | Buy(P) | 57 | $73.31 | $4K |
| Aug 7, 2026 | Zhang Kevin Xiaoqiang | SVP and Deputy Co-COO | Buy(P) | 63 | $73.31 | $5K |
| Aug 7, 2026 | Yuan Lipen | VP | Buy(P) | 42 | $73.31 | $3K |
| Aug 7, 2026 | Wu Yi-Huang | VP | Buy(P) | 41 | $73.31 | $3K |
| Aug 7, 2026 | Yoo Chue-San | VP | Buy(P) | 51 | $73.31 | $4K |
| Aug 3, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $73.06 | $73K |
| Jul 31, 2026 | Tseng Fang Churng | Director | Gift(G) | 5.0M | — | $0 |
| Jul 31, 2026 | Tseng Fang Churng | Director | Gift(G) | 5.0M | — | $0 |
| Jul 28, 2026 | Tien Bor-Zen | VP | Buy(P) | 10 | $390.00 | $4K |
| Jul 28, 2026 | Tien Bor-Zen | VP | Buy(P) | 5 | $390.00 | $2K |
| Jul 28, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $67.97 | $68K |
| Jul 21, 2026 | Lin Shyue-Shyh | VP | Buy(P) | 1K | $74.13 | $74K |
| Jul 21, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $74.13 | $74K |
| Jul 21, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $73.98 | $74K |
| Jul 21, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $74.44 | $74K |
| Jul 21, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $74.75 | $75K |
| Jul 20, 2026 | Lin Shyue-Shyh | VP | Buy(P) | 1K | $72.65 | $73K |
| Jul 20, 2026 | Tien Bor-Zen | VP | Buy(P) | 10 | $405.00 | $4K |
| Jul 19, 2026 | Lin Shyue-Shyh | VP | Buy(P) | 1K | $72.10 | $72K |
| Jul 19, 2026 | Lin Shyue-Shyh | VP | Buy(P) | 1K | $71.32 | $71K |
| Jul 19, 2026 | Lin Shyue-Shyh | VP | Buy(P) | 1K | $71.94 | $72K |
| Jul 14, 2026 | Chen Chih-Ho | Controller | Sell(S) | 50 | $75.22 | $4K |
| Jul 13, 2026 | Chen Chih-Ho | Controller | Buy(P) | 50 | $74.60 | $4K |
| Jul 7, 2026 | Wang Ying-Lang | SVP | Buy(P) | 53 | $76.62 | $4K |
| Jul 7, 2026 | Jang Syun-Ming | VP | Buy(P) | 47 | $76.62 | $4K |
| Jul 7, 2026 | Wu Shien-Yang | SVP | Buy(P) | 54 | $76.62 | $4K |
| Jul 7, 2026 | Ku Yao-Ching | VP | Buy(P) | 46 | $76.62 | $4K |
| Jul 7, 2026 | Chuang Juiping | VP | Buy(P) | 47 | $76.62 | $4K |
| Jul 7, 2026 | Lin Chris Horng-Dar | VP and CIO | Buy(P) | 46 | $76.62 | $4K |
| Jul 7, 2026 | Chang Tzonz-Sheng | SVP | Buy(P) | 52 | $76.62 | $4K |
| Jul 7, 2026 | Wei Che-Chia | Chairman and CEO, Director | Buy(P) | 146 | $76.62 | $11K |
| Jul 7, 2026 | Lee Chun-Hsien | SVP | Buy(P) | 50 | $76.62 | $4K |
| Jul 7, 2026 | Chen Pei-Hung | VP | Buy(P) | 44 | $76.62 | $3K |
| Jul 7, 2026 | Tien Bor-Zen | VP | Buy(P) | 40 | $76.62 | $3K |
| Jul 7, 2026 | Tien Bor-Zen | VP | Buy(P) | 6 | $76.62 | $460 |
| Jul 7, 2026 | Wu Yi-Huang | VP | Buy(P) | 39 | $76.62 | $3K |
| Jul 7, 2026 | Hou Yung-Chin | SVP and Deputy Co-COO | Buy(P) | 61 | $76.62 | $5K |
| Jul 7, 2026 | Yuan Lipen | VP | Buy(P) | 40 | $76.62 | $3K |
| Jul 7, 2026 | Chin Yung-Pei | EVP and Co-COO | Buy(P) | 69 | $76.62 | $5K |
| Jul 7, 2026 | Zhang Kevin Xiaoqiang | SVP and Deputy Co-COO | Buy(P) | 61 | $76.62 | $5K |
| Jul 7, 2026 | Hsu Kuo-Chin | VP | Buy(P) | 52 | $76.62 | $4K |
| Jul 7, 2026 | Chen Chih-Ho | Controller | Buy(P) | 31 | $76.62 | $2K |
| Jul 7, 2026 | Liaw Yung-Haw | VP | Buy(P) | 48 | $76.62 | $4K |
| Jul 7, 2026 | Fang Shu-Hua | SVP and GC | Buy(P) | 54 | $76.62 | $4K |
| Jul 7, 2026 | Mii Yuh-Jier | EVP and Co-COO | Buy(P) | 68 | $76.62 | $5K |
| Jul 7, 2026 | Yeap Choh Fei | SVP | Buy(P) | 53 | $76.62 | $4K |
| Jul 7, 2026 | He Jun | VP | Buy(P) | 45 | $76.62 | $3K |
| Jul 7, 2026 | Huang Jen-Chau | SVP and CFO | Buy(P) | 28 | $76.62 | $2K |
| Jul 7, 2026 | Lu Chin-Sheng | VP | Buy(P) | 37 | $76.62 | $3K |
| Jul 7, 2026 | Chuang Tzu-Sou | VP | Buy(P) | 45 | $76.62 | $3K |
| Jul 7, 2026 | Cao Min | VP | Buy(P) | 54 | $76.62 | $4K |
| Jul 7, 2026 | Lu Lee-Chung | VP | Buy(P) | 49 | $76.62 | $4K |
| Jul 7, 2026 | Lin Shyue-Shyh | VP | Buy(P) | 44 | $76.62 | $3K |
| Jul 7, 2026 | Yoo Chue-San | VP | Buy(P) | 51 | $76.62 | $4K |
| Jul 7, 2026 | Hwang Yuan-Ko | VP | Buy(P) | 40 | $76.62 | $3K |
| Jul 3, 2026 | Chang Tzonz-Sheng | SVP | Gift(G) | 173K | — | $0 |
| Jul 3, 2026 | Chang Tzonz-Sheng | SVP | Gift(G) | 173K | — | $0 |
| Jun 30, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $75.70 | $76K |
| Jun 29, 2026 | Tien Bor-Zen | VP | Buy(P) | 1K | $76.64 | $77K |
| Jun 24, 2026 | Chuang Tzu-Sou | VP | Gift(G) | 500K | — | $0 |
| Jun 22, 2026 | Yuan Lipen | VP | Buy(P) | 1K | $79.19 | $79K |
| Jun 15, 2026 | Yuan Lipen | VP | Buy(P) | 1K | $75.26 | $75K |
| Jun 8, 2026 | Chuang Tzu-Sou | VP | Gift(G) | 500K | — | $0 |
| Jun 5, 2026 | Hwang Yuan-Ko | VP | Buy(P) | 40 | $76.01 | $3K |
| Jun 5, 2026 | Ku Yao-Ching | VP | Buy(P) | 48 | $76.01 | $4K |
| Jun 5, 2026 | Hsu Kuo-Chin | VP | Buy(P) | 53 | $76.01 | $4K |
| Jun 5, 2026 | Huang Jen-Chau | SVP and CFO | Buy(P) | 30 | $76.01 | $2K |
| Jun 5, 2026 | Jang Syun-Ming | VP | Buy(P) | 49 | $76.01 | $4K |
| Jun 5, 2026 | Fang Shu-Hua | SVP and GC | Buy(P) | 55 | $76.01 | $4K |
| Jun 5, 2026 | Hou Yung-Chin | SVP and Deputy Co-COO | Buy(P) | 62 | $76.01 | $5K |
| Jun 5, 2026 | Chuang Juiping | VP | Buy(P) | 50 | $76.01 | $4K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-02. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for TSM