SEC EDGARSEP 91 min read$TSM

Tien Bor-Zen purchased $4K of TSM (indirect holdings)

Tien Bor-Zen (VP) purchased 48 indirectly-held shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) at $76.20 across 2 trades on 2026-09-07.

Original reporting

SEC EDGAR · Tien Bor-Zen

Published Sep 9, 2026, 10:07 AM UTC

Analysis

AlphAI AI DeskAI-generated

Added to AlphAI Sep 9, 2026, 10:10 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 purchase adds 48 shares to the insider's position, raising holdings to 85 shares, a negligible change in ownership.

Market read

The filing is a routine insider purchase with no material impact on TSM's stock price or sector.

What to watch

Potential future insider purchases could be more material if pattern emerges.

Relevance 3/10Novelty 4/10Timing: filed Sep 9 2026

Background

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

Company-level read

Ticker impact

AI estimates · verify against primary disclosures

$TSMNeutralHigh confidence

Context

VP Tien Bor-Zen bought 48 shares of TSM for $3,657.60, increasing holdings to 85 shares.

Expected impact

minimal impact, no immediate price change expected

Evidence & confidence

Transaction size is trivial relative to market cap and float.

Market effects

Sector

None; semiconductor sector unchanged by this small purchase.

Regional

No regional effect; Taiwan semiconductor market unaffected.

Global

Negligible; TSM's large float dwarfs this insider trade.

Counterpoint

What could challenge this read

Even small insider buys can signal confidence, but size is too tiny to matter.

Key entities

Company
Taiwan Semiconductor Manufacturing Co Ltd
Global semiconductor foundry, ticker TSM.
Insider
Tien Bor-Zen
Vice President at TSM, reported purchase.

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