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
7 Sep 2026
Chuang Tzu-Sou VP · indirect
Bought
$3.58K 47 at 76.20
0.8%
Cluster · 30 buyers
7 Sep 2026
He Jun VP · indirect
Bought
$3.51K 46 at 76.20
0.9%
Cluster · 30 buyers
7 Sep 2026
Chen Pei-Hung VP · indirect
Bought
$3.51K 46 at 76.20
3.4%
Cluster · 30 buyers
7 Sep 2026
Lin Shyue-Shyh VP · indirect
Bought
$3.35K 44 at 76.20
14.9%
Cluster · 30 buyers
7 Sep 2026
Tien Bor-Zen VP · indirect
Bought
$3.28K 43 at 76.20
15.9%
Cluster · 30 buyers
7 Sep 2026
Yuan Lipen VP · indirect
Bought
$3.12K 41 at 76.20
3.3%
Cluster · 30 buyers
7 Sep 2026
Hwang Yuan-Ko VP · indirect
Bought
$3.05K 40 at 76.20
15.4%
Cluster · 30 buyers
7 Sep 2026
Wu Yi-Huang VP · indirect
Bought
$3.05K 40 at 76.20
33.3%
Cluster · 30 buyers
7 Sep 2026
Lu Chin-Sheng VP · indirect
Bought
$2.90K 38 at 76.20
33.6%
Cluster · 30 buyers
7 Sep 2026
Chen Chih-Ho Controller · indirect
Bought
$2.44K 32 at 76.20
18.8%
Cluster · 30 buyers
7 Sep 2026
Huang Jen-Chau SVP and CFO · indirect
Bought
$2.29K 30 at 76.20
0.8%
Cluster · 30 buyers
7 Sep 2026
Tien Bor-Zen VP · indirect
Bought
$381.00 5 at 76.20
6.3%
Cluster · 30 buyers
19 Aug 2026
Bought
$73.77K 1,000 at 73.77
16.7%
Cluster · 30 buyers
18 Aug 2026
Bought
$74.50K 1,000 at 74.50
20.0%
Cluster · 30 buyers
18 Aug 2026
Yuan Lipen VP · indirect
Bought
$25.75K 350 at 73.58
21.2%
Cluster · 30 buyers
7 Aug 2026
Wei Che-Chia Chairman and CEO · indirect
Bought
$11.14K 152 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Chin Yung-Pei EVP and Co-COO · indirect
Bought
$5.28K 72 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Mii Yuh-Jier EVP and Co-COO · indirect
Bought
$5.28K 72 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Zhang Kevin Xiaoqiang SVP and Deputy Co-COO · indirect
Bought
$4.62K 63 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Hou Yung-Chin SVP and Deputy Co-COO · indirect
Bought
$4.62K 63 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Yeap Choh Fei SVP · indirect
Bought
$4.18K 57 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Fang Shu-Hua SVP and GC · indirect
Bought
$4.18K 57 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Wu Shien-Yang SVP · indirect
Bought
$4.18K 57 at 73.31
0.8%
Cluster · 30 buyers
7 Aug 2026
Cao Min VP · indirect
Bought
$4.03K 55 at 73.31
0.8%
Cluster · 30 buyers
7 Aug 2026
Wang Ying-Lang SVP · indirect
Bought
$4.03K 55 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Chang Tzonz-Sheng SVP · indirect
Bought
$3.96K 54 at 73.31
1.0%
Cluster · 30 buyers
7 Aug 2026
Hsu Kuo-Chin VP · indirect
Bought
$3.96K 54 at 73.31
0.8%
Cluster · 30 buyers
7 Aug 2026
Lee Chun-Hsien SVP · indirect
Bought
$3.96K 54 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Lu Lee-Chung VP · indirect
Bought
$3.81K 52 at 73.31
0.8%
Cluster · 30 buyers
7 Aug 2026
Yoo Chue-San VP · indirect
Bought
$3.74K 51 at 73.31
0.8%
Cluster · 30 buyers
7 Aug 2026
Jang Syun-Ming VP · indirect
Bought
$3.67K 50 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Chuang Juiping VP · indirect
Bought
$3.59K 49 at 73.31
1.2%
Cluster · 30 buyers
7 Aug 2026
Tien Bor-Zen VP · indirect
Bought 2×
$3.59K 49 at 73.31
22.2%
Cluster · 30 buyers
7 Aug 2026
Lin Chris Horng-Dar VP and CIO · indirect
Bought
$3.59K 49 at 73.31
0.8%
Cluster · 30 buyers
7 Aug 2026
Lin Shyue-Shyh VP · indirect
Bought
$3.45K 47 at 73.31
18.9%
Cluster · 30 buyers
7 Aug 2026
Ku Yao-Ching VP · indirect
Bought
$3.45K 47 at 73.31
50.0%
Cluster · 30 buyers
7 Aug 2026
Chuang Tzu-Sou VP · indirect
Bought
$3.45K 47 at 73.31
0.8%
Cluster · 30 buyers
7 Aug 2026
He Jun VP · indirect
Bought
$3.37K 46 at 73.31
0.9%
Cluster · 30 buyers
7 Aug 2026
Chen Pei-Hung VP · indirect
Bought
$3.37K 46 at 73.31
3.5%
Cluster · 30 buyers
7 Aug 2026
Yuan Lipen VP · indirect
Bought
$3.08K 42 at 73.31
3.4%
Cluster · 30 buyers
7 Aug 2026
Wu Yi-Huang VP · indirect
Bought
$3.01K 41 at 73.31
51.9%
Cluster · 30 buyers
7 Aug 2026
Hwang Yuan-Ko VP · indirect
Bought
$2.93K 40 at 73.31
18.3%
Cluster · 30 buyers
7 Aug 2026
Lu Chin-Sheng VP · indirect
Bought
$2.86K 39 at 73.31
52.7%
Cluster · 30 buyers
7 Aug 2026
Chen Chih-Ho Controller · indirect
Bought
$2.42K 33 at 73.31
24.1%
Cluster · 30 buyers
7 Aug 2026
Huang Jen-Chau SVP and CFO · indirect
Bought
$2.13K 29 at 73.31
0.8%
Cluster · 30 buyers
3 Aug 2026
Bought
$73.06K 1,000 at 73.06
7.7%
Cluster · 30 buyers
28 Jul 2026
Tien Bor-Zen VP · indirect
Bought
$67.97K 1,000 at 67.97
25.0%
Cluster · 30 buyers
28 Jul 2026
Bought 2×
$5.85K 15 at 390.00
12.8%
Cluster · 30 buyers
21 Jul 2026
Tien Bor-Zen VP · indirect
Bought 3×
$223.17K 3,000 at 74.39
300%
Cluster · 30 buyers
21 Jul 2026
Bought
$74.13K 1,000 at 74.13
8.3%
Cluster · 30 buyers
Showing 51–100 of 240. ← Newer Page 2 of 5 Older →