SEC EDGARAUG 102 min read$TSM

Mii Yuh-Jier purchased $5K of TSM (indirect holdings)

Mii Yuh-Jier (EVP and Co-COO) purchased 72 indirectly-held shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) at $73.31 on 2026-08-07.

Original reporting

SEC EDGAR · Mii Yuh-Jier

Published Aug 10, 2026, 11:59 AM UTC

Analysis

AlphAI AI DeskAI-generated

Added to AlphAI Aug 10, 2026, 12:09 PM UTC. Informational, not investment advice.

How this was made

AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.

About AlphAI AI Desk Scoring methodology Report an issue

AlphAI market briefInsider activity

Primary signal

$TSM

Neutral

high confidence

Mentioned

$TSM

Relevance

3/10

AlphAI data visualization · based on SEC EDGAR

Decision brief

The 30-second read

$TSMNeutralLow

Why it matters

Traders may note insider buying as a mild sentiment input, but the article provides no new operational or financial catalyst for TSM.

Market read

A small insider open-market purchase is disclosed via Form 4, with limited expected impact on TSM’s trading outlook.

What to watch

The filing notes no pre-arranged 10b5-1 plan, but the transaction is still small and does not include options, grants, or follow-on purchases that would strengthen the signal.

Relevance 3/10Novelty 3/10Timing: filed 2026-08-10, transaction dated 2026-08-07

Background

This is an SEC Form 4 insider transaction disclosure for TSM, reported by EVP and Co-COO Mii Yuh-Jier, with the purchase executed 2026-08-07.

Company-level read

Ticker impact

AI estimates · verify against primary disclosures

$TSMNeutralHigh confidence

Context

Form 4 shows EVP and Co-COO Mii Yuh-Jier bought 72 shares of TSM on 2026-08-07 for $5,278.32, indirect holdings.

Expected impact

Low likelihood of a sustained price move from this filing alone; any impact would be sentiment-only.

Evidence & confidence

The disclosure is a Form 4 insider transaction, but the transaction size ($5.3k) is small and there is no accompanying guidance, contract, or regulatory development.

Market effects

Sector

Minimal. Insider buying at a single executive level does not change semiconductor supply-demand expectations.

Regional

None indicated; the filing is US SEC EDGAR reporting for a Taiwan-listed issuer.

Global

Limited. No new global trade, regulation, or capex guidance is disclosed.

Counterpoint

What could challenge this read

The purchase may be driven by personal liquidity planning or routine compensation-related activity, not a forward-looking view on TSM fundamentals.

Key entities

issuer
TSM
Taiwan Semiconductor Manufacturing Co Ltd, subject of the Form 4 insider purchase disclosure.
insider
Mii Yuh-Jier
EVP and Co-COO who reported an indirect open-market purchase of 72 shares.

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