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Taiwan Semiconductor Manufacturing Co. is the world's largest dedicated chip foundry, with about 70% market share in 2025. TSMC was founded in 1987 as a joint venture of Philips, the government of Taiwan, and private investors. It went public in Taiwan in 1994 and as an ADR in the US in 1997. TSMC's scale and high-quality technology allow the firm to generate solid operating margins, even in the highly competitive foundry business. Furthermore, the shift to the fabless business model has created tailwinds for TSMC. The foundry leader has an illustrious base of customers, including Apple, AMD, and Nvidia, that look to apply its cutting-edge process technologies to their semiconductor designs. TSMC employs more than 83,000 people.
Congressional Trades
38
All tracked trades
Members Trading
11
Unique members
Net Activity
+6
22 buys · 16 sells
Members Who Traded This Stock
38 trade events
| Date | Member | Stock | Type | Amount | Filed | Signal |
|---|---|---|---|---|---|---|
| 2026-09-22 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 8d ago | — | |
| 2026-08-12 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 28d ago | — | |
| 2026-07-10 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 82d ago | — | |
| 2026-05-08 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 126d ago | — | |
| 2026-04-09 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 183d ago | — | |
| 2026-02-26 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 225d ago | — | |
| 2026-02-19 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 223d ago | — | |
| 2026-02-09 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $100,001 - $250,000 | 225d ago | — | |
| 2026-02-02 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 222d ago | — | |
| 2026-01-30 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 249d ago | — | |
| 2026-01-08 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 259d ago | — | |
| 2025-12-24 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 281d ago | — | |
| 2025-10-31 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 333d ago | — | |
| 2025-10-23 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $100,001 - $250,000 | 342d ago | — | |
| 2025-10-14 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 333d ago | — | |
| 2025-10-10 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 332d ago | — | |
| 2025-08-28 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $50,001 - $100,000 | 403d ago | — | |
| 2025-08-15 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $15,001 - $50,000 | 412d ago | — | |
| 2025-08-13 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 412d ago | — | |
| 2025-08-01 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $100,001 - $250,000 | 412d ago | — | |
| 2025-08-01 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 412d ago | — | |
| 2025-07-24 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 280d ago | — | |
| 2025-06-25 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $100,001 - $250,000 | 476d ago | — | |
| 2025-06-09 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 433d ago | — | |
| 2025-05-06 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $1,001 - $15,000 | 403d ago | — | |
| 2025-04-21 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 526d ago | — | |
| 2025-03-03 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 572d ago | — | |
| 2025-01-24 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 280d ago | — | |
| 2024-10-23 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $15,001 - $50,000 | 280d ago | — | |
| 2024-10-23 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $50,001 - $100,000 | 433d ago | — | |
| 2024-10-04 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 713d ago | — | |
| 2024-09-23 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 747d ago | — | |
| 2024-07-05 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 796d ago | — | |
| 2024-06-21 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 833d ago | — | |
| 2024-03-11 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Buy | $15,001 - $50,000 | 433d ago | — | |
| 2024-02-09 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $1,001 - $15,000 | 957d ago | — | |
| 2023-07-10 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $50,001 - $100,000 | 1164d ago | — | |
| 2023-02-27 | TSMTaiwan Semiconductor Manufacturing Company Ltd. | Sell | $50,001 - $100,000 | 1310d ago | — |
2026-09-22
Gilbert Cisneros
TSM
Amount
$1,001 - $15,000
Filed
8d ago
2026-08-12
Richard W. Allen
TSM
Amount
$1,001 - $15,000
Filed
28d ago
2026-07-10
Cleo Fields
TSM
Amount
$1,001 - $15,000
Filed
82d ago
2026-05-08
Richard W. Allen
TSM
Amount
$1,001 - $15,000
Filed
126d ago
2026-04-09
Cleo Fields
TSM
Amount
$1,001 - $15,000
Filed
183d ago
2026-02-26
Gilbert Cisneros
TSM
Amount
$1,001 - $15,000
Filed
225d ago
2026-02-19
Richard W. Allen
TSM
Amount
$1,001 - $15,000
Filed
223d ago
2026-02-09
Gilbert Cisneros
TSM
Amount
$100,001 - $250,000
Filed
225d ago
2026-02-02
Julia Letlow
TSM
Amount
$1,001 - $15,000
Filed
222d ago
2026-01-30
Gilbert Cisneros
TSM
Amount
$1,001 - $15,000
Filed
249d ago
2026-01-08
Cleo Fields
TSM
Amount
$1,001 - $15,000
Filed
259d ago
2025-12-24
Gilbert Cisneros
TSM
Amount
$1,001 - $15,000
Filed
281d ago
2025-10-31
Lisa McClain
TSM
Amount
$1,001 - $15,000
Filed
333d ago
2025-10-23
Cleo Fields
TSM
Amount
$100,001 - $250,000
Filed
342d ago
2025-10-14
Lisa McClain
TSM
Amount
$1,001 - $15,000
Filed
333d ago
2025-10-10
Jared Moskowitz
TSM
Amount
$1,001 - $15,000
Filed
332d ago
2025-08-28
Lisa McClain
TSM
Amount
$50,001 - $100,000
Filed
403d ago
2025-08-15
Cleo Fields
TSM
Amount
$15,001 - $50,000
Filed
412d ago
2025-08-13
Cleo Fields
TSM
Amount
$1,001 - $15,000
Filed
412d ago
2025-08-01
Cleo Fields
TSM
Amount
$100,001 - $250,000
Filed
412d ago
2025-08-01
Cleo Fields
TSM
Amount
$1,001 - $15,000
Filed
412d ago
2025-07-24
Julia Letlow
TSM
Amount
$1,001 - $15,000
Filed
280d ago
2025-06-25
Cleo Fields
TSM
Amount
$100,001 - $250,000
Filed
476d ago
2025-06-09
Lisa McClain
TSM
Amount
$1,001 - $15,000
Filed
433d ago
2025-05-06
Valerie Hoyle
TSM
Amount
$1,001 - $15,000
Filed
403d ago
2025-04-21
Bruce Westerman
TSM
Amount
$1,001 - $15,000
Filed
526d ago
2025-03-03
Rob Bresnahan
TSM
Amount
$1,001 - $15,000
Filed
572d ago
2025-01-24
Julia Letlow
TSM
Amount
$1,001 - $15,000
Filed
280d ago
2024-10-23
Julia Letlow
TSM
Amount
$15,001 - $50,000
Filed
280d ago
2024-10-23
Lisa McClain
TSM
Amount
$50,001 - $100,000
Filed
433d ago
2024-10-04
Josh Gottheimer
TSM
Amount
$1,001 - $15,000
Filed
713d ago
2024-09-23
Josh Gottheimer
TSM
Amount
$1,001 - $15,000
Filed
747d ago
2024-07-05
Josh Gottheimer
TSM
Amount
$1,001 - $15,000
Filed
796d ago
2024-06-21
Josh Gottheimer
TSM
Amount
$1,001 - $15,000
Filed
833d ago
2024-03-11
Lisa McClain
TSM
Amount
$15,001 - $50,000
Filed
433d ago
2024-02-09
Josh Gottheimer
TSM
Amount
$1,001 - $15,000
Filed
957d ago
2023-07-10
Daniel Goldman
TSM
Amount
$50,001 - $100,000
Filed
1164d ago
2023-02-27
Daniel Goldman
TSM
Amount
$50,001 - $100,000
Filed
1310d ago
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Trade Timeline
Congressional activity, newest first
Gilbert Cisneros
2026-09-22 · Purchase
$1,001 - $15,000
Richard W. Allen
2026-08-12 · Purchase
$1,001 - $15,000
Cleo Fields
2026-07-10 · Purchase
$1,001 - $15,000
Richard W. Allen
2026-05-08 · Purchase
$1,001 - $15,000
Cleo Fields
2026-04-09 · Purchase
$1,001 - $15,000
Gilbert Cisneros
2026-02-26 · Purchase
$1,001 - $15,000
Richard W. Allen
2026-02-19 · Purchase
$1,001 - $15,000
Gilbert Cisneros
2026-02-09 · Purchase
$100,001 - $250,000
Julia Letlow
2026-02-02 · Purchase
$1,001 - $15,000
Gilbert Cisneros
2026-01-30 · Purchase
$1,001 - $15,000
Cleo Fields
2026-01-08 · Purchase
$1,001 - $15,000
Gilbert Cisneros
2025-12-24 · Sale
$1,001 - $15,000
Lisa McClain
2025-10-31 · Sale
$1,001 - $15,000
Cleo Fields
2025-10-23 · Purchase
$100,001 - $250,000
Lisa McClain
2025-10-14 · Sale
$1,001 - $15,000
Jared Moskowitz
2025-10-10 · Purchase
$1,001 - $15,000
Lisa McClain
2025-08-28 · Sale
$50,001 - $100,000
Cleo Fields
2025-08-15 · Purchase
$15,001 - $50,000
Cleo Fields
2025-08-13 · Purchase
$1,001 - $15,000
Cleo Fields
2025-08-01 · Purchase
$100,001 - $250,000
Cleo Fields
2025-08-01 · Purchase
$1,001 - $15,000
Julia Letlow
2025-07-24 · Sale
$1,001 - $15,000
Cleo Fields
2025-06-25 · Purchase
$100,001 - $250,000
Lisa McClain
2025-06-09 · Purchase
$1,001 - $15,000
Valerie Hoyle
2025-05-06 · Purchase
$1,001 - $15,000
Bruce Westerman
2025-04-21 · Sale
$1,001 - $15,000
Rob Bresnahan
2025-03-03 · Sale
$1,001 - $15,000
Julia Letlow
2025-01-24 · Sale
$1,001 - $15,000
Julia Letlow
2024-10-23 · Purchase
$15,001 - $50,000
Lisa McClain
2024-10-23 · Sale
$50,001 - $100,000
Josh Gottheimer
2024-10-04 · Sale
$1,001 - $15,000
Josh Gottheimer
2024-09-23 · Sale
$1,001 - $15,000
Josh Gottheimer
2024-07-05 · Sale
$1,001 - $15,000
Josh Gottheimer
2024-06-21 · Sale
$1,001 - $15,000
Lisa McClain
2024-03-11 · Purchase
$15,001 - $50,000
Josh Gottheimer
2024-02-09 · Sale
$1,001 - $15,000
Daniel Goldman
2023-07-10 · Sale
$50,001 - $100,000
Daniel Goldman
2023-02-27 · Sale
$50,001 - $100,000