Cann Cynthia Cammett sold $147K of CSGP

Cann Cynthia Cammett (Chief Accounting Officer) sold 4,788 shares of COSTAR GROUP, INC. (CSGP) at $30.78 ($0.15M total) on 2026-08-07.

Original reporting
SEC EDGAR · Cann Cynthia Cammett
Published Aug 10, 2026, 8:06 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 10, 2026, 8:12 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
$CSGP
Neutral
low confidence
Mentioned
$CSGP
Relevance
4/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$CSGPNeutralLow
01

Why it matters

The newest fact is the specific open-market sale size, price, and post-transaction holdings by the Chief Accounting Officer, with no accompanying company news.

02

Market read

Traders may note the insider sale for sentiment, but there is no new fundamental catalyst in the filing text.

03

What to watch

Insider sales can be driven by taxes, diversification, or pre-existing personal liquidity needs, and the article provides no context for motive.

Relevance 4/10Novelty 3/10Timing: filed 2026-08-10, transaction dated 2026-08-07

Background

The article is an SEC Form 4 insider transaction disclosure for CoStar Group, Inc. (CSGP).

Company-level read

Ticker impact

$CSGPNeutralLow confidence
Context

CoStar Group insider Cann Cynthia Cammett sold 4,788 shares on 2026-08-07 for about $147.4K, per a new SEC Form 4 filing.

Expected impact

Likely minimal near-term impact; any effect is more sentiment-driven than fundamental.

Evidence & confidence

Form 4 insider sales are common and typically do not change earnings or guidance; the filing provides transaction details but no new operating or regulatory information.

Market effects

No clear read-through to the real estate services or REIT-adjacent software/analytics sector from a single small insider sale.

None indicated.

None indicated.

Counterpoint

The absence of a disclosed 10b5-1 plan could be interpreted by some traders as discretionary selling, potentially adding short-term negative sentiment.

Key entities

  • CoStar Group, Inc.

    Subject of the Form 4 insider transaction disclosure.

  • Cann Cynthia Cammett

    Chief Accounting Officer who sold 4,788 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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