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EdgarHawk

Bonarti Michael A

Corporate Vice President

Officer
4 filings analyzed · 1 company · Latest 2025-09-11

Companies

Company Buys Sells Direction
AUTOMATIC DATA PROCESSING INC ADP 0 10 Net selling

Activity

September 2025
Sell
8,728 shares
$2,604,697
Significance 4/10

ADP VP Michael Bonarti sold 8.7K shares at $298.43 on 2025-09-09; stock now $298.03; his ADP sales have underperformed timing (0 of 5 prior well-timed at 90d).

Michael Bonarti, Corporate Vice President, sold 8,728 shares of ADP for $2,604,697.04 on 2025-09-09, reducing holdings by 9.8% to 80,531 shares. The sale occurred near current market price ($298.03 vs transaction price $298.43), and the stock is currently 8.8% below its 52-week high of $326.81. Notably, across his five prior ADP sales, none were well-timed on a 90-day basis—his prior sells generated positive 90-day returns of 0.1% to 12.9%, indicating the stock rose after each sale rather than fell. This sale continues a pattern where his ADP exit timing has not preceded subsequent declines, which is the benchmark for well-timed insider selling.

February 2025
medium
Sell
30,131 shares
$9,138,732
Significance 4/10

ADP VP Bonarti sold 30,131 shares at $303.30 on 2025-02-03; stock near 52-week high at $304.67.

Bonarti Michael A, Corporate Vice President, sold 30,131 shares for $9,138,732.30 when ADP was trading at $303.30, just 1.1% below its 52-week high of $307.97. His holdings fell from 110,402 to 80,271 shares, a 27.3% reduction. Across his cross-ticker transaction history, Bonarti's prior 7 open-market sells had a 90-day well-timed rate of 42.86%, though at ADP specifically, only 1 of his 5 prior sells was well-timed at the 90-day mark, with most recent ADP sells (August and September 2024) showing strong positive 90-day returns of +12.4% to +12.9%—indicating those sales were poorly timed. The current sale occurs when ADP trades near historical highs, with fundamentals showing $5.0B quarterly revenue, +6.6% annual growth, and a P/E of 31.51.

September 2024
medium
Sell
3,852 shares
$1,038,884
Significance 5/10

Michael A. Bonarti (VP) sold 3,852 ADP shares at $269.70 on 2024-09-09; still holds 80,383 shares post-sale.

Bonarti sold 3,852 shares (3.9K) for $1,038,884.40 while retaining substantial holdings of 80,383 shares (80.4K), representing a -4.6% reduction in his position. His prior two trades at ADP—both sales in February and September 2023—were well-timed against 90-day price declines, showing a pattern of selling ahead of weakness. However, the stock has risen 7.1% over the past 30 days and 13.6% over 90 days, and currently trades at $277.48, only -0.6% from its 52-week high of $279.26. The cross-ticker track record shows a 100% well-timed rate among six prior sales, but with a -8.5% average 90-day return—suggesting his past sells preceded declines, yet here the stock has climbed sharply. The sale occurred at a price near but below current levels, during a period of strong momentum rather than apparent weakness.

August 2024
Sell
34,426 shares
$9,321,652
Significance 6/10

ADP Corporate VP Michael Bonarti sold 34,426 shares for $9,321,652.12 across 3 transactions on Aug 23 & 26

Michael Bonarti executed 3 separate sales totaling 34,426 shares for $9,321,652.12 (blended average $270.77) on August 23 and 26, 2024, reducing his holdings by 28.0% from 122,851 to 88,425 shares. The timing context is notable: his cross-ticker track record shows a 100.00% well-timed rate on 3 prior sells with an average 90-day return of -8.5%, and at ADP specifically, all 3 prior sales (Feb 2024, Sep 2023, Jul 2023) were negative-return over 90 days, indicating a pattern of selling into relative strength before subsequent declines. The current stock price of $274.68 is at its 52-week high with strong 30-day (+8.7%) and 90-day (+14.4%) gains, suggesting Bonarti sold into a period of elevated valuation and upward momentum. While the stock's P/E of 27.72 reflects investor confidence in the $5.3B revenue, $1.2B net income business, the scale of this reduction—removing 28.0% of his holdings—combined with his historical timing pattern warrants investor attention to whether this signals anticipated headwinds.

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