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Taiwan Semiconductor Manufacturing Company Ltd.

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Recent trades of TSM by members of U.S. Congress

Politician Type Traded
Josh Gottheimer House / D Sale $1,001 - $15,000 Mar. 04, 2025
Robert Bresnahan House / R Sale $1,001 - $15,000 Mar. 03, 2025
Josh Gottheimer House / D Sale $1,001 - $15,000 Jan. 28, 2025
Michael T. McCaul House / R Sale $15,001 - $50,000 Nov. 19, 2024
Michael T. McCaul House / R Sale $15,001 - $50,000 Nov. 19, 2024
Josh Gottheimer House / D Sale $1,001 - $15,000 Oct. 24, 2024
Josh Gottheimer House / D Sale $1,001 - $15,000 Oct. 04, 2024
Josh Gottheimer House / D Sale $1,001 - $15,000 Sep. 23, 2024
Josh Gottheimer House / D Sale $1,001 - $15,000 Jul. 05, 2024
Josh Gottheimer House / D Sale $1,001 - $15,000 Jun. 21, 2024
Josh Gottheimer House / D Sale $1,001 - $15,000 Mar. 12, 2024
Josh Gottheimer House / D Sale $1,001 - $15,000 Feb. 09, 2024
Josh Gottheimer House / D Purchase $1,001 - $15,000 Jan. 18, 2024
Thomas R. Carper Senate / D Sale (Partial) $1,001 - $15,000 Dec. 11, 2023
Daniel S. Goldman House / D Sale $50,001 - $100,000 Jul. 10, 2023
Tommy Tuberville Senate / R Purchase $1,001 - $15,000 Mar. 21, 2023
Josh Gottheimer House / D Purchase $1,001 - $15,000 Mar. 09, 2023
Daniel S. Goldman House / D Sale $50,001 - $100,000 Feb. 27, 2023
Thomas R. Carper Senate / D Sale (Partial) $1,001 - $15,000 Feb. 21, 2023
Tommy Tuberville Senate / R Sale (Full) $1,001 - $15,000 Nov. 23, 2022
Tommy Tuberville Senate / R Sale (Full) $1,001 - $15,000 Nov. 23, 2022
Thomas R. Carper Senate / D Purchase $1,001 - $15,000 Oct. 17, 2022
Josh Gottheimer House / D Sale $1,001 - $15,000 Mar. 30, 2022
Thomas R. Carper Senate / D Sale (Partial) $1,001 - $15,000 Jan. 19, 2022
Pete Sessions House / R Sale $1,001 - $15,000 Nov. 16, 2021
Thomas R. Suozzi House / D Sale $15,001 - $50,000 Oct. 06, 2021
Katherine M. Clark House / D Sale $1,001 - $15,000 Sep. 16, 2021
Marjorie Taylor Greene House / R Purchase $1,001 - $15,000 Jun. 16, 2021
Thomas R. Suozzi House / D Purchase $15,001 - $50,000 Jun. 11, 2021
Sara Jacobs House / D Sale $50,001 - $100,000 Apr. 09, 2021
Pete Sessions House / R Purchase $1,001 - $15,000 Mar. 10, 2021
Peter Meijer House / R Sale $50,001 - $100,000 Feb. 17, 2021
Katherine M. Clark House / D Sale $1,001 - $15,000 Feb. 08, 2021
Katherine M. Clark House / D Sale $1,001 - $15,000 Feb. 08, 2021
Peter Meijer House / R Sale $1,001 - $15,000 Feb. 08, 2021
Josh Gottheimer House / D Sale $1,001 - $15,000 Feb. 03, 2021
Marjorie Taylor Greene House / R Purchase $1,001 - $15,000 Jan. 22, 2021
Peter Meijer House / R Sale $1,001 - $15,000 Jan. 13, 2021
Josh Gottheimer House / D Sale $1,001 - $15,000 Jan. 11, 2021
Katherine M. Clark House / D Sale $1,001 - $15,000 Nov. 05, 2020
Katherine M. Clark House / D Sale $1,001 - $15,000 Oct. 22, 2020
Josh Gottheimer House / D Sale $1,001 - $15,000 Aug. 04, 2020
Greg Gianforte House / R Sale $50,001 - $100,000 Aug. 04, 2020
Greg Gianforte House / R Sale $100,001 - $250,000 Jul. 28, 2020
Josh Gottheimer House / D Sale $1,001 - $15,000 Jul. 27, 2020
Sean Patrick Maloney House / D Sale $1,001 - $15,000 Jun. 26, 2020
Josh Gottheimer House / D Purchase $1,001 - $15,000 Apr. 17, 2020
Greg Gianforte House / R Sale $50,001 - $100,000 Mar. 13, 2020
Josh Gottheimer House / D Sale $1,001 - $15,000 Mar. 12, 2020
Greg Gianforte House / R Sale $50,001 - $100,000 Jan. 13, 2020
TSM Stock Insider Trading Activity
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Recently reported changes by institutional investors

Quarterly net insider trading by TSM's directors and management

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Government lobbying spending instances

  • $540,000 Jan 21, 2025 Issue: Economics/Economic Development Taxation/Internal Revenue Code Trade (domestic/foreign) Immigration Chemicals/Chemical Industry Clean Air and Water (quality) Law Enforcement/Crime/Criminal Justice Copyright/Patent/Trademark
  • $540,000 Oct 21, 2024 Issue: Copyright/Patent/Trademark Law Enforcement/Crime/Criminal Justice Clean Air and Water (quality) Chemicals/Chemical Industry Immigration Trade (domestic/foreign) Taxation/Internal Revenue Code Economics/Economic Development
  • $790,000 Jul 17, 2024 Issue: Law Enforcement/Crime/Criminal Justice Clean Air and Water (quality) Chemicals/Chemical Industry Immigration Trade (domestic/foreign) Taxation/Internal Revenue Code Economics/Economic Development
  • $540,000 Apr 19, 2024 Issue: Law Enforcement/Crime/Criminal Justice Clean Air and Water (quality) Chemicals/Chemical Industry Immigration Trade (domestic/foreign) Taxation/Internal Revenue Code Economics/Economic Development
  • $540,000 Jan 19, 2024 Issue: Clean Air and Water (quality) Chemicals/Chemical Industry Immigration Trade (domestic/foreign) Taxation/Internal Revenue Code Economics/Economic Development
  • $540,000 Oct 18, 2023 Issue: Chemicals/Chemical Industry Immigration Trade (domestic/foreign) Taxation/Internal Revenue Code Economics/Economic Development

Estimated quarterly lobbying spending

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U.S. Patents

New patents grants

  • Patent Title: Memory cell with top electrode via Apr. 08, 2025
  • Patent Title: Sidewall spacer structure for memory cell Apr. 08, 2025
  • Patent Title: Magnetic tunnel junction device and method Apr. 08, 2025
  • Patent Title: Method of manufacturing mram device with enhanced etch control Apr. 08, 2025
  • Patent Title: Memory device Apr. 08, 2025
  • Patent Title: Method of forming semiconductor memory device Apr. 08, 2025
  • Patent Title: Method and related apparatus for improving memory cell performance in semiconductor-on-insulator technology Apr. 08, 2025
  • Patent Title: Semiconductor memory device and method for fabricating the same Apr. 08, 2025
  • Patent Title: Semiconductor device and manufacturing method thereof Apr. 08, 2025
  • Patent Title: Method of forming ferroelectric memory device Apr. 08, 2025
  • Patent Title: Flash memory layout to eliminate floating gate bridge Apr. 08, 2025
  • Patent Title: Well pick-up region design for improving memory macro performance Apr. 08, 2025
  • Patent Title: Programmable regulator voltage controlled ring oscillator Apr. 08, 2025
  • Patent Title: Semiconductor device and methods, where first and second transmission lines are surrounded by first and second high-k dielectric materials Apr. 08, 2025
  • Patent Title: Semiconductor device Apr. 08, 2025
  • Patent Title: Gate all around (gaa) transistor structures having a plurality of semiconductor nanostructures Apr. 08, 2025
  • Patent Title: Negative capacitance transistor with a diffusion blocking layer Apr. 08, 2025
  • Patent Title: Memory array channel regions Apr. 08, 2025
  • Patent Title: Apparatus and circuits including transistors with different polarizations and methods of fabricating the same Apr. 08, 2025
  • Patent Title: Integration of p-channel and n-channel e-fet iii-v devices with optimization of device performance Apr. 08, 2025
  • Patent Title: Finfet and gate-all-around fet with selective high-k oxide deposition Apr. 08, 2025
  • Patent Title: Transistor gate structures and methods of forming the same Apr. 08, 2025
  • Patent Title: Semiconductor device and method for forming the same Apr. 08, 2025
  • Patent Title: Transistor device for source/drain backside contact and method of forming cavity Apr. 08, 2025
  • Patent Title: Method for forming epitaxial source/drain features and semiconductor devices fabricated thereof Apr. 08, 2025
  • Patent Title: Middle-of-line interconnect structure and manufacturing method Apr. 08, 2025
  • Patent Title: Asymmetric source/drain for backside source contact Apr. 08, 2025
  • Patent Title: Semiconductor structure with nanostructure Apr. 08, 2025
  • Patent Title: Low warpage high density trench capacitor Apr. 08, 2025
  • Patent Title: Three-dimensional device structure including substrate-embedded integrated passive device and methods for making the same Apr. 08, 2025
  • Patent Title: Capping structure to reduce dark current in image sensors Apr. 08, 2025
  • Patent Title: High reflectance isolation structure to increase image sensor performance Apr. 08, 2025
  • Patent Title: Image sensor device Apr. 08, 2025
  • Patent Title: Semiconductor and circuit structures, and related methods Apr. 08, 2025
  • Patent Title: Gate isolation for multigate device Apr. 08, 2025
  • Patent Title: Semiconductor structure with composite oxide layer Apr. 08, 2025
  • Patent Title: Semiconductor structure and manufacturing method of the same Apr. 08, 2025
  • Patent Title: Semiconductor package and manufacturing method thereof Apr. 08, 2025
  • Patent Title: Stacking structure, package structure and method of fabricating the same Apr. 08, 2025
  • Patent Title: Integrated semiconductor packaging system with enhanced dielectric-to-dielectric bonding quality Apr. 08, 2025
  • Patent Title: Semiconductor packages having conductive pillars with inclined surfaces Apr. 08, 2025
  • Patent Title: Metal-bump sidewall protection Apr. 08, 2025
  • Patent Title: Method of making electrostatic discharge protection cell and antenna integrated with through silicon via Apr. 08, 2025
  • Patent Title: Semiconductor device and method Apr. 08, 2025
  • Patent Title: Semiconductor device with source resistor Apr. 08, 2025
  • Patent Title: Integrated fan-out package with 3d magnetic core inductor Apr. 08, 2025
  • Patent Title: Semiconductor structure having an anchor-shaped backside via Apr. 08, 2025
  • Patent Title: Semiconductor package having multiple substrates Apr. 08, 2025
  • Patent Title: Semiconductor device having an integrated device positioned within a hybrid interposer that includes organic and non-organic materials Apr. 08, 2025
  • Patent Title: Semiconductor packages and methods for forming the same Apr. 08, 2025
Government Contracts

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TSM Stock Smart Score

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Quiver LogoOur Analysis
Posted: 1 year, 12 months ago // April 14, 2023 4:21 p.m. UTC
Why These Trades Could be a Cause for Concern...

In a CNBC interview early Wednesday morning, when Warren Buffet was asked why he sold almost his entire stake in Taiwan Semiconductor ($TSM), Buffet first responded with, "There’s a danger of seismic action where they're located” before giving a more cryptic response stating “I'd rather have a US domiciled company, rather than be subject to who knows what depending on conditions outside their control” suggesting that ongoing geopolitical risks related to Taiwan pose a threat to Taiwan Semiconductor.

Having followed Buffet for many years, I thought every part of this response was abnormal. The idea that The Oracle of Omaha sold approximately $3.8 billion of TSM stock because of a potential earthquake seems ambitious, to say the least. The second part of the response implying that he's selling the company due to heightened geopolitical risks is also very unlike Buffet, who prides himself on investing in “great companies” and makes a point to not speculate on factors outside his control. Despite Buffet's unusual response, it likely wasn't enough to be a definite cause for concern regarding Taiwan and heightened geopolitical risks.

However, that was until just later the same day when Senator Tuberville disclosed his trades for March and revealed that he had purchased $75 strike price, $TSM put contracts, expiring 9/15/23.

This could be cause for concern for two primary reasons, with the first being that it's very rare to see lawmakers buying put contracts due to the nature of them being that they’re betting on a company to fall in market value.

The second reason is that Senator Tuberville sits on The Senate Committee for Armed Services and the Seapower and Strategic Forces subcommittee. As a result, Tuberville has access to classified military and defense information out of reach to the public. Given the heightened geopolitical tension around Taiwan in recent weeks, along with his purchase of TSM put contracts, the data suggests that Taiwan might be in the cross hairs of a potential war sooner rather than later.

While an outbreak of a war between China and the US over the island would have far-reaching consequences, Taiwan Semiconductors arguably has the most to lose of any company. Especially when you consider that the US has already singled out that in the event of a Chinese invasion of Taiwan, the US would “Blow up” the TSM Semiconductor facilities and move the engineers to Arizona rather than let China access the technology.

Given the unusual nature of Buffet and Tuberville’s trades, it makes you wonder whether they know something about Taiwan that we don’t?

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