As of the latest Form 4 filed Jul 9, 2026.
What Taiwan Semiconductor Manufacturing insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
31 different Taiwan Semiconductor Manufacturing insiders made open-market purchases in the last 30 days. When several insiders buy at once it’s a stronger, harder-to-explain-away signal than a single trade — how to read this.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 106 most recent filings for TSM.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-09 | 2026-07-07 | Wang Ying-Lang SVP | PPurchase | +53.00 | $76.62 | $4.06K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Jang Syun-Ming VP | PPurchase | +47.00 | $76.62 | $3.60K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Wu Shien-Yang SVP | PPurchase | +54.00 | $76.62 | $4.14K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Ku Yao-Ching VP | PPurchase | +46.00 | $76.62 | $3.52K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Chuang Juiping VP | PPurchase | +47.00 | $76.62 | $3.60K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Lin Chris Horng-Dar VP and CIO | PPurchase | +46.00 | $76.62 | $3.52K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Chang Tzonz-Sheng SVP | PPurchase | +52.00 | $76.62 | $3.98K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Wei Che-Chia Chairman and CEO | PPurchase | +146.00 | $76.62 | $11.2K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Lee Chun-Hsien SVP | PPurchase | +50.00 | $76.62 | $3.83K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Chen Pei-Hung VP | PPurchase | +44.00 | $76.62 | $3.37K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Tien Bor-Zen VP | PPurchase | +6.00 | $76.62 | $459.72 | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Tien Bor-Zen, VP | PPurchase | +40.00 | $76.62 | $3.06K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Wu Yi-Huang VP | PPurchase | +39.00 | $76.62 | $2.99K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Hou Yung-Chin SVP and Deputy Co-COO | PPurchase | +61.00 | $76.62 | $4.67K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Yuan Lipen VP | PPurchase | +40.00 | $76.62 | $3.06K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Chin Yung-Pei EVP and Co-COO | PPurchase | +69.00 | $76.62 | $5.29K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Zhang Kevin Xiaoqiang SVP and Deputy Co-COO | PPurchase | +61.00 | $76.62 | $4.67K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Hsu Kuo-Chin VP | PPurchase | +52.00 | $76.62 | $3.98K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Chen Chih-Ho Controller | PPurchase | +31.00 | $76.62 | $2.38K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Liaw Yung-Haw VP | PPurchase | +48.00 | $76.62 | $3.68K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Fang Shu-Hua SVP and GC | PPurchase | +54.00 | $76.62 | $4.14K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Mii Yuh-Jier EVP and Co-COO | PPurchase | +68.00 | $76.62 | $5.21K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Yeap Choh Fei SVP | PPurchase | +53.00 | $76.62 | $4.06K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | He Jun VP | PPurchase | +45.00 | $76.62 | $3.45K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Huang Jen-Chau SVP and CFO | PPurchase | +28.00 | $76.62 | $2.15K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Lu Chin-Sheng VP | PPurchase | +37.00 | $76.62 | $2.83K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Chuang Tzu-Sou VP | PPurchase | +45.00 | $76.62 | $3.45K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Cao Min VP | PPurchase | +54.00 | $76.62 | $4.14K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Lu Lee-Chung VP | PPurchase | +49.00 | $76.62 | $3.75K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Lin Shyue-Shyh VP | PPurchase | +44.00 | $76.62 | $3.37K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Yoo Chue-San VP | PPurchase | +51.00 | $76.62 | $3.91K | No | Form 4 ↗ |
| 2026-07-09 | 2026-07-07 | Hwang Yuan-Ko VP | PPurchase | +40.00 | $76.62 | $3.06K | No | Form 4 ↗ |
| 2026-06-30 | 2026-06-30 | Tien Bor-Zen VP | PPurchase | +1.00K | $75.70 | $75.7K | No | Form 4 ↗ |
| 2026-06-30 | 2026-06-29 | Tien Bor-Zen, VP | PPurchase | +1.00K | $76.64 | $76.6K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-24 | Chuang Tzu-Sou VP | GGift | −500K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-23 | 2026-06-22 | Yuan Lipen VP | PPurchase | +1.00K | $79.19 | $79.2K | No | Form 4 ↗ |
| 2026-06-16 | 2026-06-15 | Yuan Lipen VP | PPurchase | +1.00K | $75.26 | $75.3K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-08 | Chuang Tzu-Sou VP | GGift | −500K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Zhang Kevin Xiaoqiang SVP and Deputy Co-COO | PPurchase | +62.00 | $76.01 | $4.71K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Wu Yi-Huang VP | PPurchase | +40.00 | $76.01 | $3.04K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Yuan Lipen VP | PPurchase | +42.00 | $76.01 | $3.19K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Yeap Choh Fei SVP | PPurchase | +55.00 | $76.01 | $4.18K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Yoo Chue-San VP | PPurchase | +53.00 | $76.01 | $4.03K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Wang Ying-Lang SVP | PPurchase | +56.00 | $76.01 | $4.26K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Mii Yuh-Jier EVP and Co-COO | PPurchase | +72.00 | $76.01 | $5.47K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Wei Che-Chia Chairman and CEO | PPurchase | +150.00 | $76.01 | $11.4K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Wu Shien-Yang SVP | PPurchase | +57.00 | $76.01 | $4.33K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Tien Bor-Zen VP | PPurchase | +7.00 | $76.01 | $532.07 | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Tien Bor-Zen, VP | PPurchase | +43.00 | $76.01 | $3.27K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Lin Chris Horng-Dar VP and CIO | PPurchase | +48.00 | $76.01 | $3.65K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Lu Lee-Chung VP | PPurchase | +52.00 | $76.01 | $3.95K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Lu Chin-Sheng VP | PPurchase | +37.00 | $76.01 | $2.81K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Liaw Yung-Haw VP | PPurchase | +48.00 | $76.01 | $3.65K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Lee Chun-Hsien SVP | PPurchase | +51.00 | $76.01 | $3.88K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Lin Shyue-Shyh VP | PPurchase | +46.00 | $76.01 | $3.50K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Hwang Yuan-Ko VP | PPurchase | +40.00 | $76.01 | $3.04K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Ku Yao-Ching VP | PPurchase | +48.00 | $76.01 | $3.65K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Hsu Kuo-Chin VP | PPurchase | +53.00 | $76.01 | $4.03K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Huang Jen-Chau SVP and CFO | PPurchase | +30.00 | $76.01 | $2.28K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Jang Syun-Ming VP | PPurchase | +49.00 | $76.01 | $3.72K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Fang Shu-Hua SVP and GC | PPurchase | +55.00 | $76.01 | $4.18K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Hou Yung-Chin SVP and Deputy Co-COO | PPurchase | +62.00 | $76.01 | $4.71K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Chuang Juiping VP | PPurchase | +50.00 | $76.01 | $3.80K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Chuang Tzu-Sou VP | PPurchase | +46.00 | $76.01 | $3.50K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | He Jun VP | PPurchase | +46.00 | $76.01 | $3.50K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Chen Pei-Hung VP | PPurchase | +46.00 | $76.01 | $3.50K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Chen Chih-Ho Controller | PPurchase | +32.00 | $76.01 | $2.43K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Chang Tzonz-Sheng SVP | PPurchase | +53.00 | $76.01 | $4.03K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Cao Min VP | PPurchase | +54.00 | $76.01 | $4.10K | No | Form 4 ↗ |
| 2026-06-09 | 2026-06-05 | Chin Yung-Pei EVP and Co-COO | PPurchase | +71.00 | $76.01 | $5.40K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Tien Bor-Zen VP | PPurchase | +5.00 | $390.00 | $1.95K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Tien Bor-Zen, VP | PPurchase | +5.00 | $390.00 | $1.95K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | Tien Bor-Zen, VP | PPurchase | +10.00 | $386.00 | $3.86K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Yoo Chue-San VP | PPurchase | +65.00 | $57.87 | $3.76K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Yuan Lipen VP | PPurchase | +52.00 | $57.87 | $3.01K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Zhang Kevin Xiaoqiang SVP and Deputy Co-COO | PPurchase | +79.00 | $57.87 | $4.57K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Tien Bor-Zen VP | PPurchase | +9.00 | $57.87 | $520.83 | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Tien Bor-Zen, VP | PPurchase | +53.00 | $57.87 | $3.07K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Wang Ying-Lang SVP | PPurchase | +69.00 | $57.87 | $3.99K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Yeap Choh Fei SVP | PPurchase | +68.00 | $57.87 | $3.94K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Wu Shien-Yang SVP | PPurchase | +71.00 | $57.87 | $4.11K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Wei Che-Chia Chairman and CEO | PPurchase | +186.00 | $57.87 | $10.8K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Liaw Yung-Haw VP | PPurchase | +61.00 | $57.87 | $3.53K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Lu Lee-Chung VP | PPurchase | +65.00 | $57.87 | $3.76K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Mii Yuh-Jier EVP and Co-COO | PPurchase | +88.00 | $57.87 | $5.09K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Lin Shyue-Shyh VP | PPurchase | +58.00 | $57.87 | $3.36K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Lin Chris Horng-Dar VP and CIO | PPurchase | +60.00 | $57.87 | $3.47K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Hsu Kuo-Chin VP | PPurchase | +66.00 | $57.87 | $3.82K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Huang Jen-Chau SVP and CFO | PPurchase | +37.00 | $57.87 | $2.14K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Hwang Yuan-Ko VP | PPurchase | +51.00 | $57.87 | $2.95K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Lee Chun-Hsien VP | PPurchase | +63.00 | $57.87 | $3.65K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Jang Syun-Ming VP | PPurchase | +62.00 | $57.87 | $3.59K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Fang Shu-Hua SVP and GC | PPurchase | +70.00 | $57.87 | $4.05K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Chuang Tzu-Sou VP | PPurchase | +58.00 | $57.87 | $3.36K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | He Jun VP | PPurchase | +58.00 | $57.87 | $3.36K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Chuang Juiping VP | PPurchase | +62.00 | $57.87 | $3.59K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Hou Yung-Chin SVP and Deputy Co-COO | PPurchase | +78.00 | $57.87 | $4.51K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Chin Yung-Pei EVP and Co-COO | PPurchase | +89.00 | $57.87 | $5.15K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Chen Pei-Hung VP | PPurchase | +57.00 | $57.87 | $3.30K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Chen Chih-Ho Controller | PPurchase | +40.00 | $57.87 | $2.31K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Chang Tzonz-Sheng SVP | PPurchase | +67.00 | $57.87 | $3.88K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Cao Min VP | PPurchase | +66.00 | $57.87 | $3.82K | No | Form 4 ↗ |
| 2026-03-31 | 2026-03-30 | Lin Shyue-Shyh VP | PPurchase | +3.00K | $54.72 | $164K | No | Form 4 ↗ |
| 2026-03-31 | 2026-03-22 | Yeap Choh Fei SVP | PPurchase | +1.00K | $55.78 | $55.8K | No | Form 4 ↗ |
| 2026-03-30 | 2026-03-29 | Lin Shyue-Shyh VP | PPurchase | +2.00K | $55.63 | $111K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-22 | Tien Bor-Zen VP | PPurchase | +1.00K | $55.93 | $55.9K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also TSM’s full analysis or the market-wide insider trading feed. The tabs above jump to TSM’s other SEC data.
Source: SEC Form 4 filings for TSM, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.