Insider trading

Period: 1 month Stock: TSM Plan: Discretionary × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

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

31 decisions over 1 month
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.

31 decisions over 1 month
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.

31 decisions over 1 month
The trade

Minimum amount

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

31 decisions over 1 month
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.
31 decisions over 1 month Remove this filter
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
31 decisions over 1 month
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.

31 decisions over 1 month
Stock
Insider
Type ?
Why it stands out
7 Oct 2026
Wei Che-Chia Chairman and CEO · indirect
Bought
$11.43K 144 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Mii Yuh-Jier EVP and Co-COO · indirect
Bought
$5.40K 68 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Chin Yung-Pei EVP and Co-COO · indirect
Bought
$5.32K 67 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Hou Yung-Chin SVP and Deputy Co-COO · indirect
Bought
$4.76K 60 at 79.39
opened
Cluster · 30 buyers
7 Oct 2026
Zhang Kevin Xiaoqiang SVP and Deputy Co-COO · indirect
Bought
$4.68K 59 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Fang Shu-Hua SVP and GC · indirect
Bought
$4.21K 53 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Wu Shien-Yang SVP · indirect
Bought
$4.21K 53 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Yeap Choh Fei SVP · indirect
Bought
$4.13K 52 at 79.39
×52
Cluster · 30 buyers
7 Oct 2026
Wang Ying-Lang SVP · indirect
Bought
$4.13K 52 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Hsu Kuo-Chin VP · indirect
Bought
$4.13K 52 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Lee Chun-Hsien SVP · indirect
Bought
$4.05K 51 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Chang Tzonz-Sheng SVP · indirect
Bought
$4.05K 51 at 79.39
×51
Cluster · 30 buyers
7 Oct 2026
Cao Min VP · indirect
Bought
$4.05K 51 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Yoo Chue-San VP · indirect
Bought
$3.97K 50 at 79.39
0.7%
Cluster · 30 buyers
7 Oct 2026
Lu Lee-Chung VP · indirect
Bought
$3.89K 49 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Ku Yao-Ching VP · indirect
Bought
$3.65K 46 at 79.39
24.5%
Cluster · 30 buyers
7 Oct 2026
Chuang Juiping VP · indirect
Bought
$3.65K 46 at 79.39
×23
Cluster · 30 buyers
7 Oct 2026
Jang Syun-Ming VP · indirect
Bought
$3.65K 46 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Chuang Tzu-Sou VP · indirect
Bought
$3.65K 46 at 79.39
×46
Cluster · 30 buyers
7 Oct 2026
Lin Chris Horng-Dar VP and CIO · indirect
Bought
$3.49K 44 at 79.39
×44
Cluster · 30 buyers
7 Oct 2026
Lin Shyue-Shyh VP · indirect
Bought
$3.49K 44 at 79.39
12.9%
Cluster · 30 buyers
7 Oct 2026
He Jun VP · indirect
Bought
$3.41K 43 at 79.39
×22
Cluster · 30 buyers
7 Oct 2026
Chen Pei-Hung VP · indirect
Bought
$3.41K 43 at 79.39
3.1%
Cluster · 30 buyers
7 Oct 2026
Tien Bor-Zen VP · indirect
Bought
$3.18K 40 at 79.39
12.8%
Cluster · 30 buyers
7 Oct 2026
Yuan Lipen VP · indirect
Bought
$3.18K 40 at 79.39
3.1%
Cluster · 30 buyers
7 Oct 2026
Wu Yi-Huang VP · indirect
Bought
$3.10K 39 at 79.39
24.4%
Cluster · 30 buyers
7 Oct 2026
Hwang Yuan-Ko VP · indirect
Bought
$3.10K 39 at 79.39
13.0%
Cluster · 30 buyers
7 Oct 2026
Lu Chin-Sheng VP · indirect
Bought
$2.86K 36 at 79.39
23.8%
Cluster · 30 buyers
7 Oct 2026
Chen Chih-Ho Controller · indirect
Bought
$2.46K 31 at 79.39
15.3%
Cluster · 30 buyers
7 Oct 2026
Huang Jen-Chau SVP and CFO · indirect
Bought
$2.22K 28 at 79.39
0.8%
Cluster · 30 buyers
7 Oct 2026
Tien Bor-Zen VP · indirect
Bought
$555.73 7 at 79.39
8.2%
Cluster · 30 buyers
Showing 1–31 of 31.