Congress WatchTSM stock trades by members of Congress
Taiwan Semiconductor Manufacturing Company Ltd.: 29 members of Congress disclosed 117 transactions between 2014-06-18 and 2026-10-22, 52 purchases and 65 sales.
Activity by year
Transactions by the year the report was filed.
TSM price and Congress trades
Daily closing price (split-adjusted). Dots mark days members of Congress filed trades in TSM: green when more were purchases, red when more were sales. Use + and − (or Ctrl/⌘ + scroll) to zoom and drag to pan. Hover a month in the heatmap below to highlight it here, or click it to zoom to that month.
Congress buying and selling by month
Purchases and sales of TSM reported by members of the House and Senate.
Green months had more purchases, red months more sales, teal an even split; darker means more trades. Months are by filing date. Senate filings after August 2026 and scanned House filings are not fully covered, so early years can look quieter than they were.
Who traded TSM
| Politician | Trades | Buys | Sales | Last filing |
|---|---|---|---|---|
| Josh Gottheimer | 20 | 3 | 17 | 2025-05-14 |
| Cleo Fields | 14 | 14 | 0 | 2026-10-22 |
| Lisa McClain | 11 | 6 | 5 | 2025-11-21 |
| Greg Gianforte | 10 | 2 | 8 | 2020-08-18 |
| Katherine M. Clark | 9 | 2 | 7 | 2021-10-14 |
| Gilbert Cisneros | 7 | 6 | 1 | 2026-10-12 |
| Julia Letlow | 4 | 2 | 2 | 2026-03-12 |
| Thomas MacArthur | 4 | 1 | 3 | 2015-06-07 |
| Peter Meijer | 3 | 0 | 3 | 2021-03-16 |
| Richard W. Allen | 3 | 3 | 0 | 2026-09-22 |
| Jared Moskowitz | 3 | 3 | 0 | 2025-11-22 |
| Valerie Hoyle | 3 | 2 | 1 | 2025-10-10 |
| Donna Shalala | 3 | 2 | 1 | 2020-04-27 |
| Shelley M Capito | 2 | 1 | 1 | 2019-04-17 |
| Bruce Westerman | 2 | 1 | 1 | 2025-05-12 |
| Mikie Sherrill | 2 | 0 | 2 | 2019-07-08 |
| Pete Sessions | 2 | 1 | 1 | 2022-02-11 |
| Marjorie Taylor Greene | 2 | 2 | 0 | 2021-06-21 |
| Thomas Suozzi | 2 | 1 | 1 | 2021-11-05 |
| Daniel Goldman | 2 | 0 | 2 | 2023-08-13 |
| Patty Murray | 1 | 0 | 1 | 2017-06-22 |
| Sean Patrick Maloney | 1 | 0 | 1 | 2021-04-02 |
| Sara Jacobs | 1 | 0 | 1 | 2021-05-28 |
| Sheri Biggs | 1 | 0 | 1 | 2025-10-05 |
| Nicholas Van Taylor | 1 | 0 | 1 | 2019-04-15 |
Disclosed transactions
Download all transactions as CSV
| Filed | Traded | Politician | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2019-10-20 | 2019-09-10 | Greg Gianforte | Partial sale | $15,001 - c $50,000 | Source |
| 2019-10-11 | 2019-09-30 | Josh Gottheimer | Partial sale | $1,001 - $15,000 d | Source |
| 2019-07-08 | 2019-05-28 | Mikie Sherrill | Sale | $1,001 - $15,000 g | Source |
| 2019-07-08 | 2019-05-28 | Mikie Sherrill | Sale | $1,001 - $15,000 b | Source |
| 2019-06-26 | 2019-05-12 | Katherine M. Clark | Buy | $1,001 - $15,000 g | Source |
| 2019-06-26 | 2019-05-12 | Katherine M. Clark | Buy | $1,001 - $15,000 f | Source |
| 2019-05-18 | 2019-04-24 | Greg Gianforte | Buy | $15,001 - c $50,000 | Source |
| 2019-04-17 | 2019-03-11 | Shelley M Capito | Sale | $1,001 - $15,000 | Source |
| 2019-04-15 | 2019-03-25 | Nicholas Van Taylor | Sale | $15,001 - g $50,000 | Source |
| 2017-10-06 | 2017-09-08 | Shelley M Capito | Buy | $1,001 - $15,000 | Source |
| 2017-06-22 | 2017-06-15 | Patty Murray | Sale | $1,001 - $15,000 | Source |
| 2016-10-12 | 2016-09-12 | K. Michael Conaway | Sale | $1,001 - $15,000 | Source |
| 2015-06-07 | 2015-05-27 | Thomas MacArthur | Sale | $1,001 - $15,000 | Source |
| 2015-03-11 | 2015-02-19 | Thomas MacArthur | Sale | $15,001 - $50,000 | Source |
| 2015-03-05 | 2015-01-26 | Thomas MacArthur | Buy | $1,001 - $15,000 | Source |
| 2015-03-05 | 2015-01-27 | Thomas MacArthur | Sale | $1,001 - $15,000 | Source |
| 2014-06-18 | 2014-06-12 | Lois Frankel | Sale | $1,001 - $15,000 | Source |
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Common questions
- Are members of Congress buying or selling TSM?
- 29 members of Congress disclosed 117 transactions in Taiwan Semiconductor Manufacturing Company Ltd. (TSM) between 2014-06-18 and 2026-10-22: 52 purchases and 65 sales.
- How active was Congress in TSM recently?
- In 2026 filings, 16 transactions in TSM were disclosed: 13 purchases and 3 sales.
- Which members of Congress trade TSM?
- The most active in TSM are Josh Gottheimer (20), Cleo Fields (14) and Lisa McClain (11), by number of disclosed transactions. 29 members in all have traded it.