TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) insider trading
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD insiders have made 30 open-market purchases worth $121k since Oct 8, 2026, by 30 different insiders. The latest: Lipen Yuan (Officer) bought $3k, filed Oct 8, 2026, scored 30 out of 100. The biggest: $11k by Che-Chia Wei, filed Oct 8, 2026.
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Insider purchases
| Filed | Insider | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Oct 8 Form 4 (opens sec.gov) |
Lipen YuanOfficerOfficer · Near 52-week low | +3% stake | 30 | $3k 40 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Choh Fei YeapOfficerOfficer · Near 52-week low | +999% stake | 44 | $4k 52 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Kevin Xiaoqiang ZhangCOOCOO · Near 52-week low | +1% stake | 28 | $5k 59 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Chue-San YooOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 50 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Shien-Yang WuOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 53 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Che-Chia WeiChairChair · Near 52-week low | +1% stake | 32 | $11k 144 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Yi-Huang WuOfficerOfficer · Near 52-week low | +24% stake | 40 | $3k 39 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Ying-Lang WangOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 52 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Yuh-Jier MiiCOOCOO · Near 52-week low | +1% stake | 28 | $5k 68 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Bor-Zen TienOfficerOfficer · Near 52-week low | +12% stake | 35 | $4k 47 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Chin-Sheng LuOfficerOfficer · Near 52-week low | +24% stake | 40 | $3k 36 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Lee-Chung LuOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 49 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Shyue-Shyh LinOfficerOfficer · Near 52-week low | +13% stake | 35 | $3k 44 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Chris Horng-Dar LinOfficerOfficer · Near 52-week low | +999% stake | 44 | $3k 44 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Chun-Hsien LeeOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 51 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Yao-Ching KuOfficerOfficer · Near 52-week low | +25% stake | 40 | $4k 46 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Yuan-Ko HwangOfficerOfficer · Near 52-week low | +13% stake | 35 | $3k 39 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Jen-Chau HuangCFOCFO · Near 52-week low | +1% stake | 36 | $2k 28 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Syun-Ming JangOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 46 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Yung-Chin HouCOOCOO · Near 52-week low | New position | 46 | $5k 60 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Kuo-Chin HsuOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 52 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Jun HeOfficerOfficer · Near 52-week low | +999% stake | 44 | $3k 43 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Tzu-Sou ChuangOfficerOfficer · Near 52-week low | +999% stake | 44 | $4k 46 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Min CaoOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 51 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Yung-Pei ChinCOOCOO · Near 52-week low | +1% stake | 28 | $5k 67 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Tzonz-Sheng ChangOfficerOfficer · Near 52-week low | +999% stake | 44 | $4k 51 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Shu-Hua FangOfficerOfficer · Near 52-week low | +1% stake | 26 | $4k 53 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Juiping ChuangOfficerOfficer · Near 52-week low | +999% stake | 44 | $4k 46 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Pei-Hung ChenOfficerOfficer · Near 52-week low | +3% stake | 30 | $3k 43 at $79.39 |
— | — |
| Oct 8 Form 4 (opens sec.gov) |
Chih-Ho ChenOfficerOfficer · Near 52-week low | +15% stake | 35 | $2k 31 at $79.39 |
— | — |
Investors with more than 5% of TSM (13D and 13G)
| Filed | Investor | Kind | Stake |
|---|---|---|---|
| Oct 27 13G | BlackRock, Inc. | Passive | 5.1% |
A 13D is filed by an investor who may push for change; a 13G by a passive one.
Insiders who bought TSM
- Lipen Yuan Officer
- Choh Fei Yeap Officer
- Kevin Xiaoqiang Zhang COO
- Chue-San Yoo Officer
- Shien-Yang Wu Officer
- Che-Chia Wei Chair
- Yi-Huang Wu Officer
- Ying-Lang Wang Officer
- Yuh-Jier Mii COO
- Bor-Zen Tien Officer
- Chin-Sheng Lu Officer
- Lee-Chung Lu Officer
- Shyue-Shyh Lin Officer
- Chris Horng-Dar Lin Officer
- Chun-Hsien Lee Officer
- Yao-Ching Ku Officer
- Yuan-Ko Hwang Officer
- Jen-Chau Huang CFO
- Syun-Ming Jang Officer
- Yung-Chin Hou COO
- Kuo-Chin Hsu Officer
- Jun He Officer
- Tzu-Sou Chuang Officer
- Min Cao Officer
Questions
Are insiders buying TSM stock?
Yes. In the last 90 days, 30 open-market purchases were filed, worth $121k.
Who bought TSM stock most recently?
Lipen Yuan, Officer, bought 40 shares for $3k (Form 4 (opens sec.gov), filed Oct 8, 2026).
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Insiders are also buying, same industry
- MX $318k
Data as of Oct 8, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer