$ADP

Black Maria sold $8.4M of ADP

Black Maria (President & CEO) sold 29,810 shares of AUTOMATIC DATA PROCESSING INC (ADP) at an average of $280.91 ($278.59–$281.86, $8.37M total) across 14 trades on 2026-09-02 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Black Maria
Published Sep 3, 2026, 4:00 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 4, 2026, 7:10 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.
AlphAI market briefInsider activity
Primary signal
$ADP
Bearish
medium confidence
Mentioned
$ADP
Relevance
5/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$ADPBearishLow
01

Why it matters

The transaction provides fresh data on insider holdings and may influence short‑term trading sentiment.

02

Market read

Primary insider sell; modest negative bias for ADP stock.

03

What to watch

Potential upcoming earnings release or strategic initiatives not disclosed could offset the sell pressure.

Relevance 5/10Novelty 7/10Timing: filing posted 2026-09-03, after‑hours

Background

Form 4 filings disclose insider transactions; a CEO sell of $8.4M is notable for a large‑cap employer services firm.

Company-level read

Ticker impact

$ADPBearishMedium confidence
Context

CEO Black Maria sold 29,810 shares for $8.37M via a 10b5‑1 plan, reducing his stake to 80,624 shares.

Expected impact

Possible modest downside of 1‑2% over the next few days.

Evidence & confidence

The sale size is material for a large cap and executed through a pre‑arranged plan, suggesting a neutral to slightly negative market reaction.

Market effects

Minimal impact on the broader HR‑tech sector; insider sales are company‑specific.

US market only; no regional ripple.

Low global relevance.

Counterpoint

The sale is pre‑arranged under a 10b5‑1 plan and may not reflect personal sentiment; the stock could remain stable.

Key entities

  • Black Maria

    President & CEO of Automatic Data Processing Inc.

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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