$TSM

Lin Shyue-Shyh purchased $143K of TSM

Lin Shyue-Shyh (VP) purchased 2,000 shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) at an average of $71.71 ($71.32–$72.10, $0.14M total) across 2 trades on 2026-07-19.

Original reporting
SEC EDGAR · Lin Shyue-Shyh
Published Jul 21, 2026, 10:44 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jul 21, 2026, 11:04 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.
AlphAI market briefInsider activity
Primary signal
$TSM
Neutral
medium confidence
Mentioned
$TSM
Relevance
5/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$TSMNeutralLow
01

Why it matters

The newest fact is the specific open-market purchase details (shares, dates, price range, total value). This can be used as a sentiment datapoint but does not alter TSM’s fundamentals in the text.

02

Market read

Useful for tracking insider behavior, but unlikely to be a standalone catalyst for a trading decision.

03

What to watch

No 10b5-1 plan is indicated, but the article does not state intent, option exercises, or whether this is part of a broader pattern of buying/selling.

Relevance 5/10Novelty 4/10Timing: Filed 2026-07-21 after trades dated 2026-07-19.

Background

The article is an SEC Form 4 insider transaction disclosure for TSM, reported by an officer (VP).

Company-level read

Ticker impact

$TSMNeutralMedium confidence
Context

VP Lin Shyue-Shyh bought 2,000 TSM shares in open-market trades on 2026-07-19, totaling $143,420 at ~$71.71 avg.

Expected impact

Likely minimal near-term price impact; any effect would be sentiment-driven and short-lived.

Evidence & confidence

Form 4 provides a fresh, company-specific datapoint (insider buying), but it does not include new fundamentals, guidance, or material corporate actions.

Market effects

No direct sector read-across; insider buying at a single issuer does not change semiconductor demand/supply assumptions.

None beyond marginal sentiment for Taiwan-listed semiconductor exposure.

Minimal; TSM insider activity is not a macro or policy catalyst.

Counterpoint

Insider purchases can be driven by diversification, compensation timing, or routine liquidity needs, so the signal may be weak.

Key entities

  • TSM

    Taiwan Semiconductor Manufacturing Co Ltd, subject of the Form 4 insider transaction.

  • Lin Shyue-Shyh

    VP at TSM who reported the open-market purchase.

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.

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