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SEC EDGARSEP 91 min read$TSM

Lu Chin-Sheng purchased $3K of TSM (indirect holdings)

Lu Chin-Sheng (VP) purchased 38 indirectly-held shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) at $76.20 on 2026-09-07.

Original reporting
SEC EDGAR · Lu Chin-Sheng
Published Sep 9, 2026, 10:07 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 DeskScoring methodologyReport 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
01

Why it matters

The disclosed purchase is too small to affect TSM's stock price materially.

02

Market read

Minimal relevance; serves as a routine disclosure with negligible trading impact.

03

What to watch

Potential upcoming corporate actions not disclosed; insider may be positioning for future events.

Relevance 3/10Novelty 4/10Timing: filed 2026-09-09

Background

SEC Form 4 filings disclose insider transactions; investors monitor them for signals.

Company-level read

Ticker impact

$TSMNeutralHigh confidence
Context

Form 4 disclosed VP Lu Chin-Sheng bought 38 shares for $2,896, indicating a small insider purchase.

Expected impact

No significant move expected.

Evidence & confidence

Purchase size is trivial relative to market cap; no material signal.

Market effects

Sector

None; semiconductor sector unchanged.

Regional

None; Taiwan market unaffected by small insider trade.

Global

None

Counterpoint

What could challenge this read

Even small insider purchases can precede larger moves if insider has unique insight.

Key entities

  • Officer
    Lu Chin-Sheng

    Vice President at TSM who purchased shares.

  • Company
    TSM

    Taiwan Semiconductor Manufacturing Co., a leading semiconductor foundry.

Read at source← All news

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

TSM insider trading history →

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