$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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$ADPMed

ADP: US employment up by 38,000 in August

ADP reported 38,000 private payroll jobs added in August, below expectations. Education and health services gained 45,000 jobs, while manufacturing and professional services saw declines. Large firms added 34,000 jobs, mid-sized firms lost 2,000, and small firms added 2,000.