Taiwan Semiconductor Manufacturing Company Ltd. ADR (TSM) Insider Trading

Cluster buy

30 insiders bought $121k of their own stock in 1 day.

Open-market purchases by executives and directors between Oct 7 and Oct 7. Buying is rarer than selling and says more, but it is one input, not a verdict.

Net open-market

−$10.9M

227 buys · 2 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

32 / 2

executives and directors

Last open-market buy

Oct 2026

Oct 7, 2026

Get an email when TSM's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 7	Lipen Yuan VP	Bought	40	$79.39	$3k	0.4%	Form 4
Oct 7	Choh Fei Yeap SVP	Bought	52	$79.39	$4k	<0.1%	Form 4
Oct 7	Kevin Xiaoqiang Zhang SVP and Deputy Co-COO	Bought	59	$79.39	$5k	<0.1%	Form 4
Oct 7	Chue-San Yoo VP	Bought	50	$79.39	$4k	<0.1%	Form 4
Oct 7	Shien-Yang Wu SVP	Bought	53	$79.39	$4k	<0.1%	Form 4
Oct 7	Che-Chia Wei Chairman and CEO	Bought	144	$79.39	$11k	<0.1%	Form 4
Oct 7	Yi-Huang Wu VP	Bought	39	$79.39	$3k	<0.1%	Form 4
Oct 7	Ying-Lang Wang SVP	Bought	52	$79.39	$4k	<0.1%	Form 4
Oct 7	Yuh-Jier Mii EVP and Co-COO	Bought	68	$79.39	$5k	<0.1%	Form 4
Oct 7	Bor-Zen Tien VP	Bought 2 parts	47	$79.39 average	$4k	0.2%	Form 4
Oct 7	Chin-Sheng Lu VP	Bought	36	$79.39	$3k	<0.1%	Form 4
Oct 7	Lee-Chung Lu VP	Bought	49	$79.39	$4k	<0.1%	Form 4
Oct 7	Shyue-Shyh Lin VP	Bought	44	$79.39	$3k	0.1%	Form 4
Oct 7	Chris Horng-Dar Lin VP and CIO	Bought	44	$79.39	$3k	<0.1%	Form 4
Oct 7	Chun-Hsien Lee SVP	Bought	51	$79.39	$4k	<0.1%	Form 4
Oct 7	Yao-Ching Ku VP	Bought	46	$79.39	$4k	<0.1%	Form 4
Oct 7	Yuan-Ko Hwang VP	Bought	39	$79.39	$3k	<0.1%	Form 4
Oct 7	Jen-Chau Huang SVP and CFO	Bought	28	$79.39	$2k	<0.1%	Form 4
Oct 7	Syun-Ming Jang VP	Bought	46	$79.39	$4k	<0.1%	Form 4
Oct 7	Yung-Chin Hou SVP and Deputy Co-COO	Bought	60	$79.39	$5k	<0.1%	Form 4
Oct 7	Kuo-Chin Hsu VP	Bought	52	$79.39	$4k	<0.1%	Form 4
Oct 7	Jun He VP	Bought	43	$79.39	$3k	<0.1%	Form 4
Oct 7	Tzu-Sou Chuang VP	Bought	46	$79.39	$4k	<0.1%	Form 4
Oct 7	Min Cao VP	Bought	51	$79.39	$4k	<0.1%	Form 4
Oct 7	Yung-Pei Chin EVP and Co-COO	Bought	67	$79.39	$5k	<0.1%	Form 4
Oct 7	Tzonz-Sheng Chang SVP	Bought	51	$79.39	$4k	<0.1%	Form 4
Oct 7	Shu-Hua Fang SVP and GC	Bought	53	$79.39	$4k	<0.1%	Form 4
Oct 7	Juiping Chuang VP	Bought	46	$79.39	$4k	<0.1%	Form 4
Oct 7	Pei-Hung Chen VP	Bought	43	$79.39	$3k	<0.1%	Form 4
Oct 7	Chih-Ho Chen Controller	Bought	31	$79.39	$2k	0.2%	Form 4
Sep 7	Yi-Huang Wu VP	Bought	40	$76.20	$3k	<0.1%	Form 4
Sep 7	Chue-San Yoo VP	Bought	53	$76.20	$4k	<0.1%	Form 4
Sep 7	Choh Fei Yeap SVP	Bought	54	$76.20	$4k	<0.1%	Form 4
Sep 7	Kevin Xiaoqiang Zhang SVP and Deputy Co-COO	Bought	61	$76.20	$5k	<0.1%	Form 4
Sep 7	Lipen Yuan VP	Bought	41	$76.20	$3k	0.4%	Form 4
Sep 7	Yuh-Jier Mii EVP and Co-COO	Bought	71	$76.20	$5k	<0.1%	Form 4
Sep 7	Shien-Yang Wu SVP	Bought	57	$76.20	$4k	<0.1%	Form 4
Sep 7	Che-Chia Wei Chairman and CEO	Bought	149	$76.20	$11k	<0.1%	Form 4
Sep 7	Bor-Zen Tien VP	Bought 2 parts	48	$76.20 average	$4k	0.2%	Form 4
Sep 7	Ying-Lang Wang SVP	Bought	54	$76.20	$4k	<0.1%	Form 4

Oct 7
Lipen Yuan
VP · bought 40 at $79.39
$3k
0.4% of stake
Oct 7
Choh Fei Yeap
SVP · bought 52 at $79.39
$4k
<0.1% of stake
Oct 7
Kevin Xiaoqiang Zhang
SVP and Deputy Co-COO · bought 59 at $79.39
$5k
<0.1% of stake
Oct 7
Chue-San Yoo
VP · bought 50 at $79.39
$4k
<0.1% of stake
Oct 7
Shien-Yang Wu
SVP · bought 53 at $79.39
$4k
<0.1% of stake
Oct 7
Che-Chia Wei
Chairman and CEO · bought 144 at $79.39
$11k
<0.1% of stake
Oct 7
Yi-Huang Wu
VP · bought 39 at $79.39
$3k
<0.1% of stake
Oct 7
Ying-Lang Wang
SVP · bought 52 at $79.39
$4k
<0.1% of stake
Oct 7
Yuh-Jier Mii
EVP and Co-COO · bought 68 at $79.39
$5k
<0.1% of stake
Oct 7
Bor-Zen Tien
VP · bought 47 at avg $79.39
$4k
0.2% of stake
Oct 7
Chin-Sheng Lu
VP · bought 36 at $79.39
$3k
<0.1% of stake
Oct 7
Lee-Chung Lu
VP · bought 49 at $79.39
$4k
<0.1% of stake
Oct 7
Shyue-Shyh Lin
VP · bought 44 at $79.39
$3k
0.1% of stake
Oct 7
Chris Horng-Dar Lin
VP and CIO · bought 44 at $79.39
$3k
<0.1% of stake
Oct 7
Chun-Hsien Lee
SVP · bought 51 at $79.39
$4k
<0.1% of stake
Oct 7
Yao-Ching Ku
VP · bought 46 at $79.39
$4k
<0.1% of stake
Oct 7
Yuan-Ko Hwang
VP · bought 39 at $79.39
$3k
<0.1% of stake
Oct 7
Jen-Chau Huang
SVP and CFO · bought 28 at $79.39
$2k
<0.1% of stake
Oct 7
Syun-Ming Jang
VP · bought 46 at $79.39
$4k
<0.1% of stake
Oct 7
Yung-Chin Hou
SVP and Deputy Co-COO · bought 60 at $79.39
$5k
<0.1% of stake
Oct 7
Kuo-Chin Hsu
VP · bought 52 at $79.39
$4k
<0.1% of stake
Oct 7
Jun He
VP · bought 43 at $79.39
$3k
<0.1% of stake
Oct 7
Tzu-Sou Chuang
VP · bought 46 at $79.39
$4k
<0.1% of stake
Oct 7
Min Cao
VP · bought 51 at $79.39
$4k
<0.1% of stake
Oct 7
Yung-Pei Chin
EVP and Co-COO · bought 67 at $79.39
$5k
<0.1% of stake
Oct 7
Tzonz-Sheng Chang
SVP · bought 51 at $79.39
$4k
<0.1% of stake
Oct 7
Shu-Hua Fang
SVP and GC · bought 53 at $79.39
$4k
<0.1% of stake
Oct 7
Juiping Chuang
VP · bought 46 at $79.39
$4k
<0.1% of stake
Oct 7
Pei-Hung Chen
VP · bought 43 at $79.39
$3k
<0.1% of stake
Oct 7
Chih-Ho Chen
Controller · bought 31 at $79.39
$2k
0.2% of stake
Sep 7
Yi-Huang Wu
VP · bought 40 at $76.20
$3k
<0.1% of stake
Sep 7
Chue-San Yoo
VP · bought 53 at $76.20
$4k
<0.1% of stake
Sep 7
Choh Fei Yeap
SVP · bought 54 at $76.20
$4k
<0.1% of stake
Sep 7
Kevin Xiaoqiang Zhang
SVP and Deputy Co-COO · bought 61 at $76.20
$5k
<0.1% of stake
Sep 7
Lipen Yuan
VP · bought 41 at $76.20
$3k
0.4% of stake
Sep 7
Yuh-Jier Mii
EVP and Co-COO · bought 71 at $76.20
$5k
<0.1% of stake
Sep 7
Shien-Yang Wu
SVP · bought 57 at $76.20
$4k
<0.1% of stake
Sep 7
Che-Chia Wei
Chairman and CEO · bought 149 at $76.20
$11k
<0.1% of stake
Sep 7
Bor-Zen Tien
VP · bought 48 at avg $76.20
$4k
0.2% of stake
Sep 7
Ying-Lang Wang
SVP · bought 54 at $76.20
$4k
<0.1% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch TSM, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Data sourced from company filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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