Transaction · 0001046179-26-000655

Yoo Chue-San

Yoo Chue-San, VP, reported an open-market or private purchase at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD involving 53.000000 shares for an estimated $4038.60. Reported holdings after the transaction were 6694.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market buySEC transaction code PVP
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
Trade date
Sep 07, 2026
Filing date
Sep 09, 2026
View on SEC Insider profile
Estimated value$4.03kShares × reported price
Shares traded53$76.20 per share
Holdings after6.69kIndirect · By ESPP Trust
% of reported position traded0.8%This security and ownership context
How reported position traded is calculated

Shares purchased ÷ (holdings after − shares purchased). Estimated position before: 6,641 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

TSM price since this filing

Daily closing prices, with the filing date and available return windows
TSM · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -3.5%1w ago -4.6%1d ago -1.5%
Returns since7d -4.1%30d +5.2%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Buy
Code P
Identifier
0001046179-26-000655
Common Shares (2330.TW)
Transaction date
Sep 07, 2026
Filed Sep 09, 2026, 10:08 AM · 2d delay
Shares
53 sh
$76.20 per share
Estimated value
$4.03k
Computed from shares × price
Holdings after
6,694 sh
Indirect · By ESPP Trust

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Buy
Filing-only score

+30 points

Compact filing score computed from stored Form 4 facts. Version v1.

Strong filing signal

This filing has a high positive filing-only score. It may deserve closer research, but it is not an investment recommendation.

How this score is calculated
  • open_market_purchase+12 points

    transaction_code = P

    Code P is a discretionary open-market purchase.
  • cluster_buy+14 points

    cluster-buy signal matched

    Multiple insiders bought within the configured window.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

VP

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer pursuant to terms predetermined by the issuer.

  2. F2

    The price was translated from the average purchase price of NT$2,404.3453 in New Taiwan dollars, at the rate of NT$31.552 to US$1.

  3. F3

    Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").

  4. F4

    Represents Common Shares purchased by a trust with cash received under the issuer's Long-Term Incentive ("LTI") Bonus Plan, over which the filer has obtained investment control.

Original filing · 0001046179-26-000655
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