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Company profile

Taiwan Semiconductor Manufacturing Co Ltd Insider Trading

TSM

Every SEC Form 4 insider trading filing for Taiwan Semiconductor Manufacturing Co Ltd (TSM) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
NYSE
Sector
Semiconductors & Related Devices
CIK
0001046179
Filings
174
Insiders
34
Last filing
2026-08-19
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bullish. Over the last 30 days, 38 insiders purchased shares (net $440K). Buying was led by Yuan Lipen.

Quarterly balance

Buy and sell value by quarter, Q1 26 to Q3 26. Taiwan Semiconductor Manufacturing Co Ltd insiders are net sellers across the period shown.

Q1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $14.0M.

90 day insight

Over the last 90 days, Taiwan Semiconductor Manufacturing Co Ltd insiders bought $1.1M across 48 transactions with no open-market sales.

  • Most active insider: Tien Bor-Zen with 11 transactions totaling $452K.
  • Largest single purchase: $75K by Tien Bor-Zen on Jul 21, 2026.

Activity skews bullish — buys outpace sales.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue1d1w1m3m6m
Aug 19, 2026Yuan LipenTSM
Purchase
1,000$73.77$74K+0.7%————
Aug 18, 2026Yuan LipenTSM
Purchase
1,000$74.50$75K+0.7%————
Aug 18, 2026Yuan LipenTSM
Purchase
350$73.58$26K+0.7%————
Aug 7, 2026Huang Jen-ChauTSM
Purchase
29$73.31$2K+0.0%+2.4%———
Aug 7, 2026Chen Pei-HungTSM
Purchase
46$73.31$3K+0.0%+2.4%———

45 more transactions hidden

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Top insiders

By total value filed.

Tien Bor-ZenVP11 filings+$452K
Lin Shyue-ShyhVP6 filings+$366K
Yuan LipenVP4 filings+$177K
Wei Che-ChiaChairman and CEO1 filing+$11K
Mii Yuh-JierEVP and Co-COO1 filing+$5K

Institutional Ownership

Top 13F-HR holders of Taiwan Semiconductor Manufacturing Co Ltd as of 2026-06-30

↓ decreasing
Total reported AUM
$98.55B
QoQ change
-65.0%
Reporting period
2026-06-30
#1
Sanders Capital, LLC
CIK 0001508097
$12.49B
26.1M shares
#2
Fisher Asset Management, LLC
CIK 0000850529
$9.01B
18.9M shares
#3
Jennison Associates LLC
CIK 0000053417
$4.93B
10.3M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

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Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

Congressional Trading

Disclosed TSM trades under the STOCK Act

Convergence detected

Insiders and members of Congress have both recently bought TSM. 31 insiders in a cluster buy and 2 congressional purchases were both disclosed within the same detection window. This is monitoring of disclosed activity, not a performance signal, a return prediction, or a trade recommendation. Congressional disclosures can lag the actual trade by up to 45 days, so "recently" means recently disclosed, not real-time. See the TSM congressional trades →

Which members traded, their disclosed amount ranges, and the convergence strength score are available on the Pro plan and via GET /v1/signals/convergence.

Total trades
50
Purchases
34
Sales
16
Cleo Fields
Democrat · House · LA
13 buys
0 sells
Lisa C. McClain
Republican · House · MI
6 buys
5 sells
Gilbert Ray Cisneros, Jr.
Democrat · House · CA
5 buys
1 sell
Julia Letlow
Republican · House · LA
2 buys
2 sells
Jared Moskowitz
Democrat · House · FL
3 buys
0 sells
See all 12 members who traded TSM →

Sourced from U.S. House Clerk periodic transaction reports (House coverage only). Trade counts reflect disclosed filings only. The STOCK Act allows up to 45 days between a trade and its disclosure, so this reflects recent disclosures, not real-time trading. Full congressional trading API →

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