TSM insider buying
Every open-market purchase of Taiwan Semiconductor Manufacturing Co Ltd (TSM) stock by its officers, directors and major shareholders, from SEC Form 4 filings.
Bought, last 12 months$2.37M
Insiders buying (12m)7
Purchases on record23
Last purchase filedOct 8, 2026
In the last 12 months, 7 insiders of Taiwan Semiconductor Manufacturing Co Ltd bought $2.37M of TSM stock on the open market in 23 reported purchases. The most recent was filed on Oct 8, 2026: Wei Che-Chia (Chairman and CEO, Director) bought 144 shares at $79.39, worth $11.43K. The largest purchase on record here is $322.05K by Burns Ursula M on Mar 31, 2026.
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| Filed | Insider | Value | Shares | Price | Stake | Trade | |
|---|---|---|---|---|---|---|---|
| Oct 8 | Wei Che-ChiaChairman and CEO, Director | $11.43K | 144 | $79.39 | +1% | Oct 7 | SEC |
| Sep 9 | Wei Che-ChiaChairman and CEO, Director | $11.35K | 149 | $76.20 | +1% | Sep 7 | SEC |
| Sep 4 | Fang Shu-HuaSVP and GC | $154.18K | 2,000 | $77.09 | +38% | Jul 2 | SEC |
| Aug 20 | Yuan LipenVP | $174.02K | 2,350 | $74.05 | new | Aug 18 | SEC |
| Aug 10 | Wei Che-ChiaChairman and CEO, Director | $11.14K | 152 | $73.31 | +1% | Aug 7 | SEC |
| Aug 4 | Tien Bor-ZenVP | $73.06K | 1,000 | $73.06 | +8% | Aug 3 | SEC |
| Jul 30 | Tien Bor-ZenVP | $73.82K | 1,015 | $72.73 | +26% | Jul 28 | SEC |
| Jul 23 | Tien Bor-ZenVP | $301.35K | 4,010 | $75.15 | new | Jul 20 | SEC |
| Jul 22 | Lin Shyue-ShyhVP | $146.78K | 2,000 | $73.39 | +7% | Jul 20 | SEC |
| Jul 21 | Lin Shyue-ShyhVP | $215.36K | 3,000 | $71.79 | +150% | Jul 19 | SEC |
| Jul 9 | Wei Che-ChiaChairman and CEO, Director | $11.19K | 146 | $76.62 | +1% | Jul 7 | SEC |
| Jun 30 | Tien Bor-ZenVP | $152.34K | 2,000 | $76.17 | +20% | Jun 29 | SEC |
| Jun 23 | Yuan LipenVP | $79.19K | 1,000 | $79.19 | +25% | Jun 22 | SEC |
| Jun 16 | Yuan LipenVP | $75.26K | 1,000 | $75.26 | +33% | Jun 15 | SEC |
| Jun 9 | Wei Che-ChiaChairman and CEO, Director | $11.40K | 150 | $76.01 | +1% | Jun 5 | SEC |
| May 19 | Tien Bor-ZenVP | $139.81K | 2,000 | $69.91 | +25% | May 19 | SEC |
| May 11 | Wei Che-ChiaChairman and CEO, Director | $11.49K | 160 | $71.82 | +1% | May 8 | SEC |
| Apr 13 | Wei Che-ChiaChairman and CEO, Director | $10.76K | 186 | $57.87 | +1% | Apr 9 | SEC |
| Apr 1 | Burns Ursula MDirector | $322.05K | 1,000 | $322.05 | +50% | Mar 31 | SEC |
| Mar 31 | Lin Shyue-ShyhVP | $164.16K | 3,000 | $54.72 | +13% | Mar 30 | SEC |
| Mar 31 | Yeap Choh FeiSVP | $55.78K | 1,000 | $55.78 | +0% | Mar 22 | SEC |
| Mar 30 | Lin Shyue-ShyhVP | $111.26K | 2,000 | $55.63 | +9% | Mar 29 | SEC |
| Mar 24 | Tien Bor-ZenVP | $55.93K | 1,000 | $55.93 | +12% | Mar 22 | SEC |