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SEC EDGAROCT 81 min read$TSM

Lu Lee-Chung purchased $4K of TSM (indirect holdings)

Lu Lee-Chung (VP) purchased 49 indirectly-held shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) at $79.39 on 2026-10-07.

Original reporting
SEC EDGAR · Lu Lee-Chung
Published Oct 8, 2026, 10:27 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 8, 2026, 10:37 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 purchase adds a negligible amount to insider ownership and is unlikely to affect investor sentiment.

02

Market read

Routine insider purchase with minimal relevance for traders.

03

What to watch

The purchase is indirect and may reflect personal portfolio rebalancing rather than company outlook.

Relevance 3/10Novelty 3/10Timing: after-hours filing

Background

SEC Form 4 filings disclose insider transactions; this filing reports a modest purchase by a senior officer.

Company-level read

Ticker impact

$TSMNeutralHigh confidence
Context

VP Lu Lee-Chung bought 49 shares of TSM for $3,890, raising his holdings to 6,534 shares via a Form 4 filing.

Expected impact

likely negligible pressure as the market prices in the modest buy.

Evidence & confidence

The transaction size is tiny relative to TSM's market cap and daily volume; such a purchase is unlikely to move the stock.

Market effects

Sector

none

Regional

none

Global

none

Counterpoint

What could challenge this read

Even small insider buys can signal confidence, but the amount is too trivial to act on.

Key entities

  • person
    Lu Lee-Chung

    Vice President at TSM who purchased 49 shares.

  • company
    Taiwan Semiconductor Manufacturing Co Ltd

    Global semiconductor foundry whose ticker is TSM.

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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