AUTOMATIC DATA PROCESSING INC (ADP) insider buying and selling
In the last 90 days at AUTOMATIC DATA PROCESSING INC (ADP), no insider made an open-market purchase and 6 insiders made 19 open-market sales worth $11.3M, as reported on SEC Form 4. All 19 sales were scheduled in advance or made to cover tax on vesting shares, so they say less about the insider's view of the stock. Over the last 12 months, 1 insider bought $746K of the stock, led by ROBERT HOLMES SWAN (Director), who bought $746K on May 7, 2026; 6 insiders sold $11.5M, of which $11.5M was scheduled or tax-related.
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Trades by the same insider within a week are shown as one line.
No discretionary open-market insider trades were reported in the last 12 months.
Scheduled and tax-related sales
Sales made under a pre-arranged 10b5-1 plan or to cover tax on vesting shares. They are listed separately because they are not a fresh decision to sell.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Joseph DeSilva VP | 10b5-1 sale 2 trades | 7,143 | avg. $282.99 | $2.0M | |
| Maria Black CEO | 10b5-1 sale 13 trades | 28,792 | avg. $280.92 | $8.1M | |
| Christopher D'Ambrosio VP | 10b5-1 sale | 1,872 | $283.00 | $530K | |
| David Foskett VP | 10b5-1 sale | 1,529 | $283.00 | $433K | |
| Brian L. Michaud VP | 10b5-1 sale | 120 | $279.70 | $34K | |
| David Kwon VP | 10b5-1 sale | 798 | $280.00 | $223K | |
| Brian L. Michaud VP | 10b5-1 sale | 848 | $212.13 | $180K | |
| ROBERT HOLMES SWAN Director | 10b5-1 purchase | 3,619 | $206.05 | $746K |
What the ADP insider trades really mean
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Questions about ADP insider trading
Who bought AUTOMATIC DATA PROCESSING INC (ADP) stock recently?
Insiders who bought AUTOMATIC DATA PROCESSING INC stock on the open market in the last 12 months: ROBERT HOLMES SWAN ($746K). The most recent purchase was reported on May 7, 2026.
Are insiders buying or selling ADP?
Insiders made no discretionary trades in ADP over the last 12 months; the only sales were scheduled or tax-related.
What is a sell-to-cover or 10b5-1 sale?
A 10b5-1 sale is scheduled in advance under a pre-arranged plan, and a sell-to-cover sale is made to pay tax on vesting shares. Neither is a fresh decision to sell, so they say less about an insider's view than a discretionary sale.
Where does this data come from?
Officers, directors and large shareholders report their trades to the SEC on Form 4. This page lists the open-market purchases and sales by individual insiders from those public filings; funds and other institutions are not shown.
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How to read this page
Officers, directors and large shareholders must report their trades in company shares to the SEC on Form 4. This page lists open-market purchases and sales by individual insiders: trades made on the stock exchange at the going price. Funds and other institutions are not shown here.
Information from SEC EDGAR Form 4 filings, shown for general information only. It is not financial advice and does not recommend buying or selling any security. Trades are shown by transaction date and may be reported up to two business days later.