TSM · Insider Trading

Taiwan Semiconductor Manufacturing Company Ltd.

Full TSM quote
Iron condor setupsExpected moveIV rank historyFibonacci levelsInsider trading

Every open-market purchase and sale reported by TSM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
50
code P
Sales
0
code S
Reporting Insiders
25
current holders
TSM — Recent Form 4 Transactions (latest 2026-10-08)
FiledInsiderRole TypeSharesValue
2026-10-08 Juiping Chuang VP Buy +46 +$3.65K
2026-10-08 Jen-Chau Huang SVP and CFO Buy +28 +$2.22K
2026-10-08 Chih-Ho Chen Controller Buy +31 +$2.46K
2026-10-08 Chin-Sheng Lu VP Buy +36 +$2.86K
2026-10-08 Shyue-Shyh Lin VP Buy +44 +$3.49K
2026-10-08 Kevin Xiaoqiang Zhang SVP and Deputy Co-COO Buy +59 +$4.68K
2026-10-08 Yung-Chin Hou SVP and Deputy Co-COO Buy +60 +$4.76K
2026-10-08 Kuo-Chin Hsu VP Buy +52 +$4.13K
2026-10-08 Lee-Chung Lu VP Buy +49 +$3.89K
2026-10-08 Yuh-Jier Mii EVP and Co-COO Buy +68 +$5.40K
2026-10-08 Shien-Yang Wu SVP Buy +53 +$4.21K
2026-10-08 Lipen Yuan VP Buy +40 +$3.18K
2026-10-08 Yao-Ching Ku VP Buy +46 +$3.65K
2026-10-08 Yi-Huang Wu VP Buy +39 +$3.10K
2026-10-08 Jun He VP Buy +43 +$3.41K
2026-10-08 Che-Chia Wei Chairman and CEO Buy +144 +$11.43K
2026-10-08 Ying-Lang Wang SVP Buy +52 +$4.13K
2026-10-08 Shu-Hua Fang SVP and GC Buy +53 +$4.21K
2026-10-08 Min Cao VP Buy +51 +$4.05K
2026-10-08 Chris Horng-Dar Lin VP and CIO Buy +44 +$3.49K
2026-10-08 Pei-Hung Chen VP Buy +43 +$3.41K
2026-10-08 Chun-Hsien Lee SVP Buy +51 +$4.05K
2026-10-08 Bor-Zen Tien VP Buy +47 +$3.73K
2026-10-08 Tzu-Sou Chuang VP Buy +46 +$3.65K
2026-10-08 Yung-Pei Chin EVP and Co-COO Buy +67 +$5.32K
2026-10-08 Chue-San Yoo VP Buy +50 +$3.97K
2026-10-08 Syun-Ming Jang VP Buy +46 +$3.65K
2026-10-08 Yuan-Ko Hwang VP Buy +39 +$3.10K
2026-10-08 Tzonz-Sheng Chang SVP Buy +51 +$4.05K
2026-10-08 Choh Fei Yeap SVP Buy +52 +$4.13K
2026-09-09 Jen-Chau Huang SVP and CFO Buy +30 +$2.29K
2026-09-09 Pei-Hung Chen VP Buy +46 +$3.51K
2026-09-09 Shyue-Shyh Lin VP Buy +44 +$3.35K
2026-09-09 Choh Fei Yeap SVP Buy +54 +$4.11K
2026-09-09 Yuh-Jier Mii EVP and Co-COO Buy +71 +$5.41K
2026-09-09 Chun-Hsien Lee SVP Buy +52 +$3.96K
2026-09-09 Chih-Ho Chen Controller Buy +32 +$2.44K
2026-09-09 Kevin Xiaoqiang Zhang SVP and Deputy Co-COO Buy +61 +$4.65K
2026-09-09 Tzonz-Sheng Chang SVP Buy +53 +$4.04K
2026-09-09 Yung-Pei Chin EVP and Co-COO Buy +71 +$5.41K
2026-09-09 Yi-Huang Wu VP Buy +40 +$3.05K
2026-09-09 Lipen Yuan VP Buy +41 +$3.12K
2026-09-09 Shien-Yang Wu SVP Buy +57 +$4.34K
2026-09-09 Yuan-Ko Hwang VP Buy +40 +$3.05K
2026-09-09 Ying-Lang Wang SVP Buy +54 +$4.11K
2026-09-09 Bor-Zen Tien VP Buy +48 +$3.66K
2026-09-09 Lee-Chung Lu VP Buy +51 +$3.89K
2026-09-09 Jun He VP Buy +46 +$3.51K
2026-09-09 Juiping Chuang VP Buy +50 +$3.81K
2026-09-09 Min Cao VP Buy +56 +$4.27K
TSM — Current Insider Holders
InsiderRole Shares HeldValue
Fang Churng Tseng Director 34,605,530 $14.48B
Che-Chia Wei Chairman and CEO 7,675,004 $3.21B
Yung-Pei Chin EVP and Co-COO 5,267,484 $2.20B
Jen-Chau Huang SVP and CFO 1,835,467 $768.16M
Chue-San Yoo VP 1,812,533 $758.56M
Tzu-Sou Chuang VP 1,516,275 $634.58M
Ying-Lang Wang SVP 1,510,802 $632.29M
Yuh-Jier Mii EVP and Co-COO 1,349,606 $564.82M
Shu-Hua Fang SVP and GC 905,656 $379.03M
Shien-Yang Wu SVP 842,052 $352.41M
Yung-Chin Hou SVP and Deputy Co-COO 771,229 $322.77M
Min Cao VP 531,341 $222.37M
Chun-Hsien Lee SVP 529,494 $221.60M
Yung-Haw Liaw VP 470,090 $196.74M
Syun-Ming Jang VP 454,054 $190.03M
Pei-Hung Chen VP 434,852 $181.99M
Kevin Xiaoqiang Zhang SVP and Deputy Co-COO 370,166 $154.92M
Tzonz-Sheng Chang SVP 346,580 $145.05M
Lee-Chung Lu VP 291,927 $122.17M
Choh Fei Yeap SVP 243,436 $101.88M
Yuan-Ko Hwang VP 206,756 $86.53M
Kuo-Chin Hsu VP 199,099 $83.32M
Chris Horng-Dar Lin VP and CIO 164,372 $68.79M
Yao-Ching Ku VP 161,851 $67.74M
Jun He VP 140,951 $58.99M
TSM Insider Trading FAQ
Who are the insiders at TSM?
25 officers, directors and 10%+ beneficial owners currently report holdings in TSM via SEC Form 4.
Are TSM insiders buying or selling?
Across the 50 most recent Form 4 filings for TSM, 50 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is TSM insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent TSM filing is dated 2026-10-08.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the TSM quote page; the site-wide leaderboard is on the insider transactions hub.

More on TSM
TSM full quote Insider Transactions Hub (all symbols) TSM iron condor setups TSM expected move TSM IV rank history TSM Fibonacci levels

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