Tzonz-Sheng Chang
SVP at Taiwan Semiconductor Manufacturing TSM
Full history from EDGAR: holdings now, every transaction and Form 144 planned sales
Every trade, with what the company filed around it
Open-market buys and sales as each Form 4 states them, newest first.
How these figures work
Notes on each row are as each Form 4 states them, next to SEC Tracker's own records of the company's filings and other insiders' buys. Holding after is what the filing reports they held after the trade, with the change in their holding.
| Date | Company | Trade | Value | Holding after | Notes |
|---|---|---|---|---|---|
| Oct 7, 2026 | Taiwan Semiconductor Manufacturing TSM | Bought 51 sh at $79.39 One of 6 insiders who bought $44K over 31 days, within the 30-day window. 13 days after the company's 6-K filed Sep 24, 2026. | $4K | 52 +5100% | One of 6 insiders who bought $44K over 31 days, within the 30-day window. 13 days after the company's 6-K filed Sep 24, 2026. |
| Sep 7, 2026 | Taiwan Semiconductor Manufacturing TSM | Bought 53 sh at $76.20 One of 6 insiders who bought $44K over 31 days, within the 30-day window. 6 days after the company's 6-K filed Sep 1, 2026. | $4K | 5,481 +1% | One of 6 insiders who bought $44K over 31 days, within the 30-day window. 6 days after the company's 6-K filed Sep 1, 2026. |
| Sep 1, 2026 | Taiwan Semiconductor Manufacturing TSM | Award 12,881 sh The same day as the company's 6-K filed Sep 1, 2026. | 157,519 | The same day as the company's 6-K filed Sep 1, 2026. | |
| Aug 7, 2026 | Taiwan Semiconductor Manufacturing TSM | Bought 54 sh at $73.31 14 days after the company's 6-K filed Jul 24, 2026. | $4K | 5,428 +1% | 14 days after the company's 6-K filed Jul 24, 2026. |
| Jul 7, 2026 | Taiwan Semiconductor Manufacturing TSM | Bought 52 sh at $76.62 5 days after the company's 6-K filed Jul 2, 2026. | $4K | 5,374 +1% | 5 days after the company's 6-K filed Jul 2, 2026. |
| Jul 3, 2026 | Taiwan Semiconductor Manufacturing TSM | Gift 173,000 sh 1 day after the company's 6-K filed Jul 2, 2026. | 144,638 | 1 day after the company's 6-K filed Jul 2, 2026. | |
| Jul 3, 2026 | Taiwan Semiconductor Manufacturing TSM | Gift 173,000 sh 1 day after the company's 6-K filed Jul 2, 2026. | 173,000 | 1 day after the company's 6-K filed Jul 2, 2026. | |
| Jun 5, 2026 | Taiwan Semiconductor Manufacturing TSM | Bought 53 sh at $76.01 1 day after the company's 6-K filed Jun 4, 2026. | $4K | 5,322 +1% | 1 day after the company's 6-K filed Jun 4, 2026. |
| May 8, 2026 | Taiwan Semiconductor Manufacturing TSM | Bought 56 sh at $71.82 One of 6 insiders who bought $43K over 30 days, within the 30-day window. The same day as the company's 6-K filed May 8, 2026. | $4K | 5,269 +1% | One of 6 insiders who bought $43K over 30 days, within the 30-day window. The same day as the company's 6-K filed May 8, 2026. |
| Apr 9, 2026 | Taiwan Semiconductor Manufacturing TSM | Bought 67 sh at $57.87 Their first open-market buy here in SEC Tracker's records. One of 6 insiders who bought $43K over 30 days, within the 30-day window. 15 days after the company's 6-K filed Mar 25, 2026. | $4K | 5,213 +1% | Their first open-market buy here in SEC Tracker's records. One of 6 insiders who bought $43K over 30 days, within the 30-day window. 15 days after the company's 6-K filed Mar 25, 2026. |
Open-market trades are Form 4 transaction codes P (purchase) and S (sale). Planned sales are those the filing marks as made under a Rule 10b5-1 plan. A P-code buy at the offering price within a day of the company's FWP, 424B prospectus or offering 8-K is marked Bought in the offering and left out of open-market buy counts and cluster buys. Prices and values are as stated in each Form 4. Stock prices aren't shown on this page. Not investment advice.