TSM insider trades & Congress trades
Taiwan Semiconductor Manufacturing Co Ltd: public insider filings and Congress disclosures, in one place.
Bourse has recorded 98 open-market insider transactions in Taiwan Semiconductor Manufacturing Co Ltd (TSM) (98 purchases with code P and 0 sales with code S), the most recent on November 5, 2026.
In the last 90 days: 67 purchases by 31 insiders ($789K) and 0 sales by 0 ($0).
The most recent insider buying cluster (three or more different insiders buying within 14 days) ran from October 7, 2026 to October 7, 2026, with 30 insiders.
Members of Congress have disclosed 8 trades in TSM (6 purchases, 2 sales), the latest transaction dated October 9, 2026. Congress filings can arrive up to 45 days after the trade.
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Nov 5, 2026 | Splinter Michael R | – | Buy | 840 | $357.00 | $300K | – |
| Nov 1, 2026 | Yuan Lipen | VP | Buy | 1,000 | $71.49 | $71K | – |
| Oct 7, 2026 | Ku Yao-Ching | VP | Buy | 46 | $79.39 | $4K | – |
| Oct 7, 2026 | Yoo Chue-San | VP | Buy | 50 | $79.39 | $4K | – |
| Oct 7, 2026 | Tien Bor-Zen | VP | Buy | 40 | $79.39 | $3K | – |
| Oct 7, 2026 | Lee Chun-Hsien | SVP | Buy | 51 | $79.39 | $4K | – |
| Oct 7, 2026 | Yeap Choh Fei | SVP | Buy | 52 | $79.39 | $4K | – |
| Oct 7, 2026 | Hwang Yuan-Ko | VP | Buy | 39 | $79.39 | $3K | – |
| Oct 7, 2026 | Cao Min | VP | Buy | 51 | $79.39 | $4K | – |
| Oct 7, 2026 | Chen Pei-Hung | VP | Buy | 43 | $79.39 | $3K | – |
| Oct 7, 2026 | Hsu Kuo-Chin | VP | Buy | 52 | $79.39 | $4K | – |
| Oct 7, 2026 | Lu Chin-Sheng | VP | Buy | 36 | $79.39 | $3K | – |
| Oct 7, 2026 | Lu Lee-Chung | VP | Buy | 49 | $79.39 | $4K | – |
| Oct 7, 2026 | Wu Yi-Huang | VP | Buy | 39 | $79.39 | $3K | – |
| Oct 7, 2026 | Chuang Tzu-Sou | VP | Buy | 46 | $79.39 | $4K | – |
| Oct 7, 2026 | Wu Shien-Yang | SVP | Buy | 53 | $79.39 | $4K | – |
| Oct 7, 2026 | Zhang Kevin Xiaoqiang | SVP and Deputy Co-COO | Buy | 59 | $79.39 | $5K | – |
| Oct 7, 2026 | Hou Yung-Chin | SVP and Deputy Co-COO | Buy | 60 | $79.39 | $5K | – |
| Oct 7, 2026 | Huang Jen-Chau | SVP and CFO | Buy | 28 | $79.39 | $2K | – |
| Oct 7, 2026 | Wang Ying-Lang | SVP | Buy | 52 | $79.39 | $4K | – |
| Oct 7, 2026 | Mii Yuh-Jier | EVP and Co-COO | Buy | 68 | $79.39 | $5K | – |
| Oct 7, 2026 | Chang Tzonz-Sheng | SVP | Buy | 51 | $79.39 | $4K | – |
| Oct 7, 2026 | Tien Bor-Zen | VP | Buy | 7 | $79.39 | $556 | – |
| Oct 7, 2026 | He Jun | VP | Buy | 43 | $79.39 | $3K | – |
| Oct 7, 2026 | Lin Chris Horng-Dar | VP and CIO | Buy | 44 | $79.39 | $3K | – |
| Oct 7, 2026 | Wei Che-Chia | Chairman and CEO | Buy | 144 | $79.39 | $11K | – |
| Oct 7, 2026 | Yuan Lipen | VP | Buy | 40 | $79.39 | $3K | – |
| Oct 7, 2026 | Fang Shu-Hua | SVP and GC | Buy | 53 | $79.39 | $4K | – |
| Oct 7, 2026 | Jang Syun-Ming | VP | Buy | 46 | $79.39 | $4K | – |
| Oct 7, 2026 | Chuang Juiping | VP | Buy | 46 | $79.39 | $4K | – |
Showing the 30 most recent of 98 transactions.
Congress trades
Disclosures under the STOCK Act. Amounts are reported as ranges; some trades are made by a spouse or dependent child.
| Traded | Member | Party | Type | Amount | Disclosed | Filing |
|---|---|---|---|---|---|---|
| Oct 9, 2026 | Cleo Fields | house | Buy | $1,001 - $15,000 | Oct 22, 2026 | Source |
| Sep 22, 2026 | Gilbert Cisneros | house | Buy | $1,001 - $15,000 | Oct 12, 2026 | Source |
| Aug 12, 2026 | Richard W. Allen | house | Buy | $1,001 - $15,000 | Sep 22, 2026 | Source |
| Jul 10, 2026 | Cleo Fields | house | Buy | $1,001 - $15,000 | Jul 30, 2026 | Source |
| Nov 4, 2019 | Thomas R Carper | Senate | Buy | $1,001 - $15,000 | – | Source |
| Mar 11, 2019 | Shelley M Capito | Senate | Sell | $1,001 - $15,000 | – | Source |
| Sep 8, 2017 | Shelley M Capito | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jun 15, 2017 | Patty Murray | Senate | Sell | $1,001 - $15,000 | – | Source |
Data as of November 12, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
See all the latest insider trades. New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
See these filings as they land
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