CHOU TIMOTHY C K sold $191K of TDC

CHOU TIMOTHY C K sold 5,657 shares of TERADATA CORP /DE/ (TDC) at $33.72 ($0.19M total) on 2026-06-08 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · CHOU TIMOTHY C K
Published Jun 10, 2026, 9:14 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 10, 2026, 9:17 PM 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
$TDC
Neutral
high confidence
Mentioned
$TDC
Relevance
3/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$TDCNeutralLow
01

Why it matters

A director’s open-market sale of ~$190.8K worth of shares under a pre-arranged 10b5-1 plan is generally informational but not typically a catalyst.

02

Market read

Traders may note the insider sale, but the 10b5-1 structure and modest dollar value suggest limited trading edge.

03

What to watch

The filing does not disclose intent beyond the plan; without additional context (e.g., other concurrent insider buys/sells), signal quality remains low.

Relevance 3/10Novelty 2/10Timing: Filed 2026-06-10; sale executed 2026-06-08

Background

The article is an SEC Form 4 insider transaction disclosure for Teradata (TDC).

Company-level read

Ticker impact

$TDCNeutralHigh confidence
Context

Teradata director Timothy C K Chou sold 5,657 shares in an open-market transaction on 2026-06-08 for ~$190.8K under a 10b5-1 plan.

Expected impact

Low likelihood of a sustained price move; any reaction is likely muted and short-lived.

Evidence & confidence

The disclosure is a Form 4 insider sale with a stated pre-arranged 10b5-1 plan, which typically reduces interpretive value versus discretionary selling.

Market effects

No sector-level implications; this is a single-company insider transaction.

None indicated.

None indicated.

Counterpoint

Even with a 10b5-1 plan, repeated insider selling can coincide with internal risk management or diversification rather than bearish fundamentals.

Key entities

  • Teradata Corp /DE/

    Company whose shares were sold by a director via an open-market transaction under a 10b5-1 plan.

  • CHOU TIMOTHY C K

    Director who sold 5,657 shares on 2026-06-08; holdings after sale: 39,210 shares.

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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