SEC EDGARSEP 91 min read$TSM

Chang Tzonz-Sheng purchased $4K of TSM (indirect holdings)

Chang Tzonz-Sheng (SVP) purchased 53 indirectly-held shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) at $76.20 on 2026-09-07.

Original reporting

SEC EDGAR · Chang Tzonz-Sheng

Published Sep 9, 2026, 10:02 AM UTC

Analysis

AlphAI AI DeskAI-generated

Added to AlphAI Sep 9, 2026, 10:09 AM 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

The disclosed purchase is modest and unlikely to move the stock, but it adds to the cumulative insider activity record.

Market read

Low relevance; the filing provides a fresh but minor data point on insider activity.

What to watch

The purchase was made indirectly and may reflect personal portfolio rebalancing rather than company outlook.

Relevance 3/10Novelty 4/10Timing: filing today (2026-09-09)

Background

Form 4 filings disclose insider transactions; investors track them for potential signals.

Company-level read

Ticker impact

AI estimates · verify against primary disclosures

$TSMNeutralHigh confidence

Context

SVP Chang Tzonz-Sheng bought 53 shares of TSM at $76.20 each, total $4,038.60, via open-market purchase.

Expected impact

No material price movement expected.

Evidence & confidence

The transaction size is small relative to TSM's market cap and typical trading volume.

Market effects

Sector

Insider buying by an SVP may be viewed positively but is too small to affect the semiconductor sector.

Regional

No discernible impact on Taiwan or broader Asian markets.

Global

Limited relevance; TSM remains a major global chip supplier.

Counterpoint

What could challenge this read

Even small insider purchases can signal confidence; monitor for additional insider activity.

Key entities

Officer
Chang Tzonz-Sheng
Senior Vice President at TSM

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