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ADP Officer Files Form 144 to Sell $530K in Common Stock

Low SignificanceSeptember 2, 2026 at 12:20:59 PM EDT

AUTOMATIC DATA PROCESSING INC

$ADP144CIK: 0000008670

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Filing Summary

Form 144 Filing Alert: AUTOMATIC DATA PROCESSING INC ($ADP)

Insider: Christopher D'Ambrosio (Officer) Proposed Sale: 1,872 shares of Common Stock Estimated Value: $529,776.00 (~$283.00/share) Approximate Sale Date: September 2, 2026 Plan Adoption Date: September 7, 2025 (Rule 10b5-1) Acquisition: Restricted Stock Vesting (09/01/2026)

Comprehensive Analysis

Executive Summary

On September 2, 2026, Christopher D'Ambrosio, an Officer at Automatic Data Processing, Inc. (ADP), submitted a Form 144 notice proposing the sale of 1,872 shares of ADP common stock with an aggregate market value of approximately $529,776.00.

Key Transaction Highlights

  • Securities to be Sold: 1,872 Common shares.
  • Aggregate Market Value: $529,776.00 (~$283.00 per share).
  • Source of Shares: Restricted Stock Vesting on September 1, 2026 (1,872 shares acquired as compensation from the issuer).
  • Broker: Fidelity Brokerage Services LLC.
  • Trading Plan: The proposed sale is executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on September 7, 2025.

Impact & Significance

This filing represents a routine post-vesting disposition under a Rule 10b5-1 plan established nearly a year in advance. Given the modest transaction volume relative to ADP's 397+ million outstanding shares and the pre-scheduled nature of the sale, the trading significance is considered Low.

Topics:#ADP#Form144#InsiderTrading#StockMarket#CorporateInsiders

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