CapitolRadar tracks every publicly disclosed TSM trade by US congress members and corporate insiders: 49 disclosed trades (20 buys, 29 sells) by 10 tracked traders, from 2019-09-30 to 2026-09-23. Updated daily from official filings.
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Taiwan Semiconductor Manufacturing Company Limited (TSM) — Technology · Semiconductors, market cap about $2,275.8B.
Cluster watch: 4 distinct tracked traders disclosed buying TSM in the last 45 days: Ro Khanna, Gilbert Cisneros, Rick Allen, Rick Allen; Cleo Fields; Gil Cisneros; Julia Letlow.
CapitolRadar analysis
49 trades tilted toward sales over the full record
49 tracked TSM trades span September 30, 2019 through September 23, 2026, involving 10 distinct traders. The record contains 29 sells and 20 buys, so sales outnumber purchases by nine across the full period. This is still a small sample, particularly when divided among individual traders and quarters, and it describes disclosed activity rather than the traders’ broader portfolios or reasoning.
11 sells in five listed quarters preceded five recent buys
11 trades across the five listed quarters from 2024 Q2 through 2025 Q2 were all sales: one in 2024 Q2, two in Q3, three in Q4, three in 2025 Q1 and two in Q2. The more recent listed quarters show the opposite transaction type: one buy in 2025 Q4, one in 2026 Q2 and three in 2026 Q3. These quarterly counts are small, and only the quarters supplied here are included.
7 buys make Michael McCaul the most frequent listed TSM buyer, with his latest dated June 18, 2026. Ro Khanna and Josh Gottheimer each recorded three buys; their latest dates were September 23, 2026 and January 18, 2024, respectively. The eight named buyers account for 19 of the 20 total buys, led by those three traders.
4 buyers also purchased MSFT and 4 purchased AMD
4 of the listed TSM buyers also bought MSFT, while another count of four also bought AMD. WDAY, META and INTU were each purchased by three of these buyers, and AJG by two. These overlaps show other disclosed purchases by the same buyer group, but do not establish timing, position size or a common rationale.
Congressional disclosures can be filed up to 45 days after a transaction, so reported activity may appear well after the trade date. Disclosed dollar amounts are reported in ranges, making any amount-based totals estimates. Those limitations, together with the small trader and quarterly samples, constrain comparisons.
Analysis written from the tracked record on 2026-10-14; it is refreshed whenever the underlying numbers change.
Activity by quarter
| Quarter | Disclosed trades | Buys | Sells |
|---|---|---|---|
| 2026 Q3 | 3 | 3 | 0 |
| 2026 Q2 | 1 | 1 | 0 |
| 2025 Q4 | 1 | 1 | 0 |
| 2025 Q2 | 2 | 0 | 2 |
| 2025 Q1 | 3 | 0 | 3 |
| 2024 Q4 | 3 | 0 | 3 |
| 2024 Q3 | 2 | 0 | 2 |
| 2024 Q2 | 1 | 0 | 1 |
Who is buying TSM?
| Trader | Disclosed buys | Last buy | Grade |
|---|---|---|---|
| Michael McCaul | 7 | 2026-06-18 | — |
| Ro Khanna | 3 | 2026-09-23 | — |
| Josh Gottheimer | 3 | 2024-01-18 | — |
| Marjorie Taylor Greene | 2 | 2021-06-16 | — |
| Gilbert Cisneros | 1 | 2026-09-22 | — |
| Richard W. Allen | 1 | 2026-08-12 | — |
| Jared Moskowitz | 1 | 2025-10-10 | — |
| Tommy Tuberville | 1 | 2023-03-21 | — |
Disclosed trades in TSM
| Date | Who | Type | Amount | 30d vs SPY |
|---|---|---|---|---|
| 2026-09-23 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2026-09-22 | Gilbert Cisneros | buy | $1,001 - $15,000 | — |
| 2026-08-12 | Richard W. Allen | buy | $1,001 - $15,000 | — |
| 2026-06-18 | Michael McCaul | buy | $15,001 - $50,000 | — |
| 2025-10-10 | Jared Moskowitz | buy | $1,001 - $15,000 | — |
| 2025-06-16 | Michael McCaul | sell | $15,001 - $50,000 | — |
| 2025-04-09 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2025-03-04 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2025-01-28 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2025-01-09 | Michael McCaul | sell | $15,001 - $50,000 | — |
| 2024-11-19 | Michael McCaul | sell | $15,001 - $50,000 | — |
| 2024-10-24 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2024-10-04 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2024-09-23 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2024-07-05 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2024-06-21 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2024-03-25 | Michael McCaul | sell | $100,001 - $250,000 | — |
| 2024-03-12 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
| 2024-03-08 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2024-02-09 | Josh Gottheimer | sell | $1,001 - $15,000 | — |
CapitolRadar signal history
NEW PICK 2026-10-13
Rep. Gilbert Cisneros disclosed a $1,001–$15,000 purchase of TSM, while several other tracked lawmakers also bought the stock recently. The panel passed mainly because Cisneros has no verified trading history versus the S&P 500, so his purchase is not a proven signal despite the broader buying cluster. A verified record showing that his prior disclosed purchases repeatedly outperformed the S&P 500 would have strengthened the case enough to reconsider the verdict.
NEW PICK 2026-09-23
Rep. Rick Allen disclosed a purchase of Taiwan Semiconductor stock, but the panel passed because his trading record is unverified and key details such as the trade date, amount, and disclosure lag are missing. A timely primary filing with complete transaction details, plus verified evidence that Allen’s past trades outperformed SPY, would have strengthened the case enough to reconsider.
These buyers also bought
Other stocks the tracked buyers of TSM disclosed buying in the last six months: AMD (4) · MSFT (4) · INTU (3) · WDAY (3) · META (3) · IBM (2).
About Taiwan Semiconductor Manufacturing Company Limited
Taiwan Semiconductor Manufacturing Company Limited (TSMC), along with its affiliated entities, operates globally in the semiconductor industry, specializing in the manufacturing, packaging, meticulous testing, and worldwide distribution of integrated circuits and other crucial semiconductor components. Its expansive international presence covers key markets such as Taiwan, China, Europe, the Middle East, Africa, Japan, and the United States. The company is renowned for its diverse array of wafer fabrication processes. These capabilities enable the production of various advanced semiconductor t…
Frequently asked questions
Which politicians bought TSM most?
Michael McCaul leads with 7 disclosed buys, followed by Ro Khanna.
How current is this page?
It re-renders from the tracked record on every view and new filings are ingested daily — but STOCK Act disclosures can lag the trade by up to 45 days, so the most recent weeks are always incomplete.
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CapitolRadar tracks publicly disclosed trades (STOCK Act filings and SEC Form 4). Disclosures can lag the trade by up to 45 days. Backtests measure past disclosed buys against the S&P 500 and do not predict future results. Everything on this page is impersonal information for your own research — not investment advice.