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SEC EDGARSEP 91 min read$TSM

Yoo Chue-San purchased $4K of TSM (indirect holdings)

Yoo Chue-San (VP) purchased 53 indirectly-held shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) at $76.20 on 2026-09-07.

Original reporting
SEC EDGAR · Yoo Chue-San
Published Sep 9, 2026, 10:08 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 9, 2026, 10:40 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 transaction is routine and financially insignificant; no immediate trading signal.

02

Market read

Limited relevance; primarily of interest to insiders‑tracking strategies.

03

What to watch

Potential upcoming corporate actions not disclosed; watch future filings.

Relevance 3/10Novelty 3/10Timing: filing posted Sep 9, 2026

Background

SEC Form 4 filing discloses an insider's open‑market purchase of TSM shares.

Company-level read

Ticker impact

$TSMNeutralHigh confidence
Context

VP Yoo Chue‑San bought 53 TSM shares for $4,038 via a Form 4 filing.

Expected impact

no material impact

Evidence & confidence

Purchase size is tiny relative to float and market cap.

Market effects

Sector

None; insider trade does not affect semiconductor sector outlook.

Regional

No regional effect beyond TSM.

Global

Minimal; only relevant to investors tracking insider activity.

Counterpoint

What could challenge this read

Even small insider buys can signal confidence; monitor for larger purchases.

Key entities

  • Officer
    Yoo Chue‑San

    Vice President at TSM who purchased shares.

  • Company
    Taiwan Semiconductor Manufacturing Co.

    World's largest contract chipmaker.

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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