TSM Congressional Stock Trades
Taiwan Semiconductor Manufacturing Company Ltd. (TSM)
Last disclosed trade Jul 10
Every disclosed trade in TSM by members of Congress under the STOCK Act, parsed by Coldpine. Informational only, sourced from public filings. Not investment advice.
Sample · the intelligence layer
Cleo Fields · Bought $TSM · Jun 25 · $100K–$250K
1 other member traded this name in the same window.
Coldpine’s read
As a member of the House Financial Services Committee, Fields's purchase of a foreign semiconductor manufacturer touches sectors under his committee's oversight. The $100,001–$250,000 range is a sizable single-name position, disclosed within a relatively fast 6-day window, meaning the market may not have fully priced the filing. One other member made a same-direction TSM trade within 30 days, indicating modest cluster interest.
Every disclosed trade in the database gets this treatment: a four-factor score and a written read from Coldpine’s AI-based analysis. Informational only, not investment advice. Create a free account for every scored trade →
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The record on $TSM
Coldpine has parsed 57 disclosed trades in $TSM by 9 members of Congress, drawn from 41 periodic transaction reports dated Feb 10, 2023 through Jul 10, 2026. All of them came from House members, filed 38 by Democrats and 19 by Republicans.
Of the 57 trades with a known filing lag, 3 were reported more than 45 days after the trade date, outside the window the STOCK Act sets. The median lag was 26 days. The longest was 549 days: a $TSM exchange by Michael T. McCaul dated Mar 25, 2024, disclosed Sep 25, 2025. How late filing is measured across all of Congress is in the late-filers study.
37 of the 45 trades that list an account holder (82%) were reported under a spouse, dependent child, or joint account rather than the member directly.
Cleo Fields filed the most $TSM purchases (12), and Michael T. McCaul the most sales (10).
Activity peaked in 2025 with 25 trades. The busiest single month was October 2025, when 4 different members disclosed $TSM trades. In 1 calendar month out of 27 with activity, three or more members bought $TSM in the same month, the same-direction overlap Coldpine's cluster detector looks for.
Across the 31 purchases Coldpine can price, $TSM moved +1.05% on average between the trade date and the disclosure date, against +1.38% for the S&P 500 over the same windows. The stock was higher at disclosure than at the trade in 48% of those purchases. That is a record of what already happened, not a forecast. Method: what stocks do before Congress discloses.
Members who trade TSM
Recent disclosed trades in TSM
| Date | Member | Type | Amount |
|---|---|---|---|
| Jul 10 | Cleo Fields(LA) | buy | $1K–$15K |
| Jun 18 | Michael T. McCaul(TX) | buy | $1K–$15K |
| May 18 | Michael T. McCaul(TX) | sell | $1K–$15K |
| May 8 | Richard W. Allen(GA) | buy | $1K–$15K |
| May 7 | Michael T. McCaul(TX) | sell | $1K–$15K |
| Apr 9 | Cleo Fields(LA) | buy | $1K–$15K |
| Feb 19 | Richard W. Allen(GA) | buy | $1K–$15K |
| Feb 2 | Julia Letlow(LA) | buy | $1K–$15K |
| Jan 8 | Cleo Fields(LA) | buy | $1K–$15K |
| Nov 14 | Rohit Khanna(CA) | sell | $15K–$50K |
| Oct 27 | Michael T. McCaul(TX) | sell | $15K–$50K |
| Oct 23 | Cleo Fields(LA) | buy | $100K–$250K |
| Oct 10 | Rohit Khanna(CA) | buy | $1K–$15K |
| Oct 10 | Jared Moskowitz(FL) | buy | $1K–$15K |
| Oct 10 | Jared Moskowitz(FL) | buy | $1K–$15K |
| Oct 10 | Jared Moskowitz(FL) | buy | $1K–$15K |
| Sep 19 | Rohit Khanna(CA) | sell | $1K–$15K |
| Aug 25 | Michael T. McCaul(TX) | sell | $1K–$15K |
| Aug 15 | Cleo Fields(LA) | buy | $15K–$50K |
| Aug 15 | Cleo Fields(LA) | buy | $15K–$50K |
Showing 20 of 57 disclosed trades.
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Create a free accountData sourced from public STOCK Act disclosures. Coldpine is a publisher of intelligence on congressional disclosures, not an investment adviser. See full history and scores, free with an account →