Insider trading

Period: 12 months Stock: TSM + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

240 decisions over 12 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

240 decisions over 12 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

240 decisions over 12 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

240 decisions over 12 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
240 decisions over 12 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
240 decisions over 12 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

240 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
8 May 2026
Lin Shyue-Shyh VP · indirect
Bought
$3.45K 48 at 71.82
43.2%
Cluster · 30 buyers
8 May 2026
Chuang Tzu-Sou VP · indirect
Bought
$3.45K 48 at 71.82
0.9%
Cluster · 30 buyers
8 May 2026
Yuan Lipen VP · indirect
Bought
$3.16K 44 at 71.82
4.0%
Cluster · 30 buyers
8 May 2026
Hwang Yuan-Ko VP · indirect
Bought
$3.02K 42 at 71.82
43.3%
Cluster · 30 buyers
8 May 2026
Chen Chih-Ho Controller · indirect
Bought
$2.44K 34 at 71.82
85.0%
Cluster · 30 buyers
8 May 2026
Huang Jen-Chau SVP and CFO · indirect
Bought
$2.15K 30 at 71.82
0.9%
Cluster · 30 buyers
28 Apr 2026
Bought 3×
$7.76K 20 at 388.00
28.6%
Cluster · 30 buyers
9 Apr 2026
Wei Che-Chia Chairman and CEO · indirect
Bought
$10.76K 186 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Chin Yung-Pei EVP and Co-COO · indirect
Bought
$5.15K 89 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Mii Yuh-Jier EVP and Co-COO · indirect
Bought
$5.09K 88 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Zhang Kevin Xiaoqiang SVP and Deputy Co-COO · indirect
Bought
$4.57K 79 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Hou Yung-Chin SVP and Deputy Co-COO · indirect
Bought
$4.51K 78 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Wu Shien-Yang SVP · indirect
Bought
$4.11K 71 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Fang Shu-Hua SVP and GC · indirect
Bought
$4.05K 70 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Wang Ying-Lang SVP · indirect
Bought
$3.99K 69 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Yeap Choh Fei SVP · indirect
Bought
$3.94K 68 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Chang Tzonz-Sheng SVP · indirect
Bought
$3.88K 67 at 57.87
1.3%
Cluster · 30 buyers
9 Apr 2026
Hsu Kuo-Chin VP · indirect
Bought
$3.82K 66 at 57.87
1.0%
Cluster · 30 buyers
9 Apr 2026
Cao Min VP · indirect
Bought
$3.82K 66 at 57.87
1.0%
Cluster · 30 buyers
9 Apr 2026
Yoo Chue-San VP · indirect
Bought
$3.76K 65 at 57.87
1.0%
Cluster · 30 buyers
9 Apr 2026
Lu Lee-Chung VP · indirect
Bought
$3.76K 65 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Lee Chun-Hsien VP · indirect
Bought
$3.65K 63 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Tien Bor-Zen VP · indirect
Bought 2×
$3.59K 62 at 57.87
159%
Cluster · 30 buyers
9 Apr 2026
Jang Syun-Ming VP · indirect
Bought
$3.59K 62 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Chuang Juiping VP · indirect
Bought
$3.59K 62 at 57.87
1.6%
Cluster · 30 buyers
9 Apr 2026
Liaw Yung-Haw VP · indirect
Bought
$3.53K 61 at 57.87
1.0%
Cluster · 30 buyers
9 Apr 2026
Lin Chris Horng-Dar VP and CIO · indirect
Bought
$3.47K 60 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Lin Shyue-Shyh VP · indirect
Bought
$3.36K 58 at 57.87
109%
Cluster · 30 buyers
9 Apr 2026
Chuang Tzu-Sou VP · indirect
Bought
$3.36K 58 at 57.87
1.0%
Cluster · 30 buyers
9 Apr 2026
He Jun VP · indirect
Bought
$3.36K 58 at 57.87
1.1%
Cluster · 30 buyers
9 Apr 2026
Chen Pei-Hung VP · indirect
Bought
$3.30K 57 at 57.87
5.1%
Cluster · 30 buyers
9 Apr 2026
Yuan Lipen VP · indirect
Bought
$3.01K 52 at 57.87
5.0%
Cluster · 30 buyers
9 Apr 2026
Hwang Yuan-Ko VP · indirect
Bought
$2.95K 51 at 57.87
111%
Cluster · 30 buyers
9 Apr 2026
Chen Chih-Ho Controller · indirect
Bought
$2.31K 40 at 57.87
opened
Cluster · 30 buyers
9 Apr 2026
Huang Jen-Chau SVP and CFO · indirect
Bought
$2.14K 37 at 57.87
1.1%
Cluster · 30 buyers
31 Mar 2026
BURNS URSULA M Director
Bought
$322.05K 1,000 at 322.05
50.0%
Cluster · 30 buyers
30 Mar 2026
Bought
$164.16K 3,000 at 54.72
12.9%
Cluster · 30 buyers
29 Mar 2026
Bought
$111.26K 2,000 at 55.63
9.4%
Cluster · 30 buyers
22 Mar 2026
Bought
$55.93K 1,000 at 55.93
12.4%
Cluster · 30 buyers
22 Mar 2026
Bought
$55.78K 1,000 at 55.78
0.5%
Cluster · 30 buyers
Showing 201–240 of 240. ← Newer Page 5 of 5