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TSM · Taiwan Semiconductor Manufacturing Co Ltd

Technology · −2.3% on Oct 16

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Updated Oct 17 · 7 feeds behind: FDA drug approvals, 1 day, and 6 more · Every feed →

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The market view

Price chart

The interactive TSM chart (by TradingView) loads here.

Our take

3 rules fired on TSM

In short: none of these rules has solid or some evidence yet, so they show no clear lean on TSM.

How each did in past tests, against similar stocks over 3 months. Past results don't predict future ones.

The 0–100 score for TSM, and which of these rules are open on it right now
Members see one number for how strongly these rules agree on TSM, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
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Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of TSM. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 21, 2026–Oct 18, 2026 · UTC dates · today is excluded

Congress purchases

Within earlier range

This count falls within the range of the 12 earlier comparable periods in this view.

Latest 28 days
1
Earlier median
1
Earlier range
0–3
Distinct filers per 28 daysScale: 0–3
Oct 20, 2025Oct 18, 2026
Earlier periodsLatest 28 daysEarlier median 1

Who appears in the latest period?

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Jul 20, 2017. Newest disclosure across this feed: Oct 15, 2026.

Earlier periods in the comparison: 12. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 30; range: 30–31.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20261Partial; excluded
Jun 29, 2026–Jul 26, 202631Within stored history
Jul 27, 2026–Aug 23, 202630Within stored history
Aug 24, 2026–Sep 20, 202630Within stored history
Sep 21, 2026–Oct 18, 2026Latest period30Within stored history
Insider sales · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–1.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20260Partial; excluded
Jun 29, 2026–Jul 26, 20261Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Congress purchases · Within earlier range

This count falls within the range of the 12 earlier comparable periods in this view. Earlier median: 1; range: 0–3.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20253Within stored history
Nov 17, 2025–Dec 14, 20251Within stored history
Dec 15, 2025–Jan 11, 20261Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20263Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20261Within stored history
May 4, 2026–May 31, 20260Within stored history
Jun 1, 2026–Jun 28, 20261Within stored history
Jun 29, 2026–Jul 26, 20261Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20261Within stored history
Sep 21, 2026–Oct 18, 2026Latest period1Within stored history
Congress sales · Sparse history

Only 2 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual. Earlier median: 0; range: 0–1.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20251Within stored history
Nov 17, 2025–Dec 14, 20250Within stored history
Dec 15, 2025–Jan 11, 20261Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20260Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20260Within stored history
May 4, 2026–May 31, 20260Within stored history
Jun 1, 2026–Jun 28, 20260Within stored history
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Insiders

Public officials

Owners & lobbying

Insiders · Oct 2026

  1. Disclosed
    Bor-Zen Tien · Purchase

    Transaction dated Oct 7, 2026

  2. Disclosed
    Che-Chia Wei · Purchase

    Transaction dated Oct 7, 2026

  3. Disclosed
    Chih-Ho Chen · Purchase

    Transaction dated Oct 7, 2026

  4. Disclosed
    Chin-Sheng Lu · Purchase

    Transaction dated Oct 7, 2026

  5. Disclosed
    Chris Horng-Dar Lin · Purchase

    Transaction dated Oct 7, 2026

  6. Disclosed
    Chue-San Yoo · Purchase

    Transaction dated Oct 7, 2026

  7. Disclosed
    Jen-Chau Huang · Purchase

    Transaction dated Oct 7, 2026

  8. Disclosed
    Juiping Chuang · Purchase

    Transaction dated Oct 7, 2026

  9. Disclosed
    Jun He · Purchase

    Transaction dated Oct 7, 2026

  10. Disclosed
    Kevin Xiaoqiang Zhang · Purchase

    Transaction dated Oct 7, 2026

  11. Disclosed
    Lee-Chung Lu · Purchase

    Transaction dated Oct 7, 2026

  12. Disclosed
    Lipen Yuan · Purchase

    Transaction dated Oct 7, 2026

  13. Disclosed
    Min Cao · Purchase

    Transaction dated Oct 7, 2026

  14. Disclosed
    Pei-Hung Chen · Purchase

    Transaction dated Oct 7, 2026

  15. Disclosed
    Shien-Yang Wu · Purchase

    Transaction dated Oct 7, 2026

  16. Disclosed
    Shu-Hua Fang · Purchase

    Transaction dated Oct 7, 2026

  17. Disclosed
    Shyue-Shyh Lin · Purchase

    Transaction dated Oct 7, 2026

  18. Disclosed
    Syun-Ming Jang · Purchase

    Transaction dated Oct 7, 2026

  19. Disclosed
    Tzu-Sou Chuang · Purchase

    Transaction dated Oct 7, 2026

  20. Disclosed
    Yao-Ching Ku · Purchase

    Transaction dated Oct 7, 2026

  21. Disclosed
    Yi-Huang Wu · Purchase

    Transaction dated Oct 7, 2026

  22. Disclosed
    Ying-Lang Wang · Purchase

    Transaction dated Oct 7, 2026

  23. Disclosed
    Yuan-Ko Hwang · Purchase

    Transaction dated Oct 7, 2026

  24. Disclosed
    Yung-Chin Hou · Purchase

    Transaction dated Oct 7, 2026

7 more on file are not listed here. See that month’s insider trades →

All 27 records in this snapshot
  1. Disclosed
    Gilbert Ray Cisneros Jr · Purchase

    Transaction dated Sep 22, 2026

  2. Disclosed
    Bor-Zen Tien · Purchase

    Transaction dated Oct 7, 2026

  3. Disclosed
    Che-Chia Wei · Purchase

    Transaction dated Oct 7, 2026

  4. Disclosed
    Chih-Ho Chen · Purchase

    Transaction dated Oct 7, 2026

  5. Disclosed
    Chin-Sheng Lu · Purchase

    Transaction dated Oct 7, 2026

  6. Disclosed
    Chris Horng-Dar Lin · Purchase

    Transaction dated Oct 7, 2026

  7. Disclosed
    Chue-San Yoo · Purchase

    Transaction dated Oct 7, 2026

  8. Disclosed
    Jen-Chau Huang · Purchase

    Transaction dated Oct 7, 2026

  9. Disclosed
    Juiping Chuang · Purchase

    Transaction dated Oct 7, 2026

  10. Disclosed
    Jun He · Purchase

    Transaction dated Oct 7, 2026

  11. Disclosed
    Kevin Xiaoqiang Zhang · Purchase

    Transaction dated Oct 7, 2026

  12. Disclosed
    Lee-Chung Lu · Purchase

    Transaction dated Oct 7, 2026

  13. Disclosed
    Lipen Yuan · Purchase

    Transaction dated Oct 7, 2026

  14. Disclosed
    Min Cao · Purchase

    Transaction dated Oct 7, 2026

  15. Disclosed
    Pei-Hung Chen · Purchase

    Transaction dated Oct 7, 2026

  16. Disclosed
    Shien-Yang Wu · Purchase

    Transaction dated Oct 7, 2026

  17. Disclosed
    Shu-Hua Fang · Purchase

    Transaction dated Oct 7, 2026

  18. Disclosed
    Shyue-Shyh Lin · Purchase

    Transaction dated Oct 7, 2026

  19. Disclosed
    Syun-Ming Jang · Purchase

    Transaction dated Oct 7, 2026

  20. Disclosed
    Tzu-Sou Chuang · Purchase

    Transaction dated Oct 7, 2026

  21. Disclosed
    Yao-Ching Ku · Purchase

    Transaction dated Oct 7, 2026

  22. Disclosed
    Yi-Huang Wu · Purchase

    Transaction dated Oct 7, 2026

  23. Disclosed
    Ying-Lang Wang · Purchase

    Transaction dated Oct 7, 2026

  24. Disclosed
    Yuan-Ko Hwang · Purchase

    Transaction dated Oct 7, 2026

  25. Disclosed
    Yung-Chin Hou · Purchase

    Transaction dated Oct 7, 2026

  26. Disclosed
    Rick W. Allen · Purchase

    Transaction dated Aug 12, 2026

  27. Record date
    Lobbying for Taiwan Semiconductor Manufacturing Company (Tsmc) ↗

    $970K · by Taiwan Semiconductor Manufacturing Company (Tsmc)

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

2 members bought, none sold · 1 Dem · 1 Rep

  1. ▲ BUYGilbert Ray Cisneros Jr Dem · House · CATSM Taiwan Semiconductor Manufacturing Co Ltd$1K–$15Kdisclosed Oct 9 · filed 17 days after the trade
  2. ▲ BUYRick W. Allen Rep · House · GATSM Taiwan Semiconductor Manufacturing Co Ltd$1K–$15Kdisclosed Sep 15 · filed 34 days after the trade
See every Congress trade on TSM →

Company insiders

97 buys · 0 sells (111 filed lots) · $1.4M bought

  1. ▲ BUYChris Horng-Dar Lin VP and CIOTSM Taiwan Semiconductor Manufacturing Co Ltd$3.5Kdisclosed Oct 8 · filed 1 day after the trade
  2. ▲ BUYKevin Xiaoqiang Zhang SVP and Deputy Co-COOTSM Taiwan Semiconductor Manufacturing Co Ltd$4.7Kdisclosed Oct 8 · filed 1 day after the trade
  3. ▲ BUYTzu-Sou Chuang VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.7Kdisclosed Oct 8 · filed 1 day after the trade
  4. ▲ BUYShyue-Shyh Lin VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.5Kdisclosed Oct 8 · filed 1 day after the trade
  5. ▲ BUYChue-San Yoo VPTSM Taiwan Semiconductor Manufacturing Co Ltd$4Kdisclosed Oct 8 · filed 1 day after the trade
  6. ▲ BUYYing-Lang Wang SVPTSM Taiwan Semiconductor Manufacturing Co Ltd$4.1Kdisclosed Oct 8 · filed 1 day after the trade
  7. ▲ BUYMin Cao VPTSM Taiwan Semiconductor Manufacturing Co Ltd$4Kdisclosed Oct 8 · filed 1 day after the trade
  8. ▲ BUYYung-Chin Hou SVP and Deputy Co-COOTSM Taiwan Semiconductor Manufacturing Co Ltd$4.8Kdisclosed Oct 8 · filed 1 day after the trade
  9. ▲ BUYChe-Chia Wei Chairman and CEOTSM Taiwan Semiconductor Manufacturing Co Ltd$11.4Kdisclosed Oct 8 · filed 1 day after the trade
  10. ▲ BUYJuiping Chuang VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.7Kdisclosed Oct 8 · filed 1 day after the trade
See every insider trade on TSM →

Filings & events

Filing red flags 1

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

FDA and clinical trials 9

Drug approvals, recalls, clinical-trial updates and FDA advisory meetings.

Lobbying 16

Lobbying reports filed with the Senate for the company.

$10.4M across 16 reports

Issues named in the most reports

  • Chemicals/Chemical Industry 16
  • Clean Air and Water (quality) 16
  • Economics/Economic Development 16
  • Immigration 16
  • Taxation/Internal Revenue Code 16
Biggest named funds (13F)

The largest TSM holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on TSM

  1. ▲ BUYGilbert Ray Cisneros Jr Dem · House · CATSM Taiwan Semiconductor Manufacturing Co Ltd$1K–$15Kdisclosed Oct 9 · filed 17 days after the trade
  2. ▲ BUYChris Horng-Dar Lin VP and CIOTSM Taiwan Semiconductor Manufacturing Co Ltd$3.5Kdisclosed Oct 8 · filed 1 day after the trade
  3. ▲ BUYKevin Xiaoqiang Zhang SVP and Deputy Co-COOTSM Taiwan Semiconductor Manufacturing Co Ltd$4.7Kdisclosed Oct 8 · filed 1 day after the trade
  4. ▲ BUYTzu-Sou Chuang VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.7Kdisclosed Oct 8 · filed 1 day after the trade
  5. ▲ BUYShyue-Shyh Lin VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.5Kdisclosed Oct 8 · filed 1 day after the trade
  6. ▲ BUYChue-San Yoo VPTSM Taiwan Semiconductor Manufacturing Co Ltd$4Kdisclosed Oct 8 · filed 1 day after the trade
  7. ▲ BUYYing-Lang Wang SVPTSM Taiwan Semiconductor Manufacturing Co Ltd$4.1Kdisclosed Oct 8 · filed 1 day after the trade
  8. ▲ BUYMin Cao VPTSM Taiwan Semiconductor Manufacturing Co Ltd$4Kdisclosed Oct 8 · filed 1 day after the trade
  9. ▲ BUYYung-Chin Hou SVP and Deputy Co-COOTSM Taiwan Semiconductor Manufacturing Co Ltd$4.8Kdisclosed Oct 8 · filed 1 day after the trade
  10. ▲ BUYChe-Chia Wei Chairman and CEOTSM Taiwan Semiconductor Manufacturing Co Ltd$11.4Kdisclosed Oct 8 · filed 1 day after the trade
  11. ▲ BUYJuiping Chuang VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.7Kdisclosed Oct 8 · filed 1 day after the trade
  12. ▲ BUYChin-Sheng Lu VPTSM Taiwan Semiconductor Manufacturing Co Ltd$2.9Kdisclosed Oct 8 · filed 1 day after the trade
  13. ▲ BUYYi-Huang Wu VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.1Kdisclosed Oct 8 · filed 1 day after the trade
  14. ▲ BUYYao-Ching Ku VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.7Kdisclosed Oct 8 · filed 1 day after the trade
  15. ▲ BUYShu-Hua Fang SVP and GCTSM Taiwan Semiconductor Manufacturing Co Ltd$4.2Kdisclosed Oct 8 · filed 1 day after the trade
  16. ▲ BUYLee-Chung Lu VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.9Kdisclosed Oct 8 · filed 1 day after the trade
  17. ▲ BUYYuan-Ko Hwang VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.1Kdisclosed Oct 8 · filed 1 day after the trade
  18. ▲ BUYJen-Chau Huang SVP and CFOTSM Taiwan Semiconductor Manufacturing Co Ltd$2.2Kdisclosed Oct 8 · filed 1 day after the trade
  19. ▲ BUYLipen Yuan VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.2Kdisclosed Oct 8 · filed 1 day after the trade
  20. ▲ BUYPei-Hung Chen VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.4Kdisclosed Oct 8 · filed 1 day after the trade
  21. ▲ BUYJun He VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.4Kdisclosed Oct 8 · filed 1 day after the trade
  22. ▲ BUYBor-Zen Tien VPTSM Taiwan Semiconductor Manufacturing Co Ltd$556disclosed Oct 8 · filed 1 day after the trade
  23. ▲ BUYChih-Ho Chen ControllerTSM Taiwan Semiconductor Manufacturing Co Ltd$2.5Kdisclosed Oct 8 · filed 1 day after the trade
  24. ▲ BUYShien-Yang Wu SVPTSM Taiwan Semiconductor Manufacturing Co Ltd$4.2Kdisclosed Oct 8 · filed 1 day after the trade
  25. ▲ BUYSyun-Ming Jang VPTSM Taiwan Semiconductor Manufacturing Co Ltd$3.7Kdisclosed Oct 8 · filed 1 day after the trade
See all 209 trades on TSM →
People & votes

Which members of Congress traded TSM, sponsored bills that touch it and voted on them — opens here.