Robert Holmes Swan, an insider at Automatic Data Processing Inc. (ADP), bought 3,619 shares on the open market on May 7, 2026, paying $206.05 per share for a total purchase of about $745,690. Open-market buying is often watched closely by retail investors because it represents an insider choosing to put personal capital into the stock at prevailing market prices. The significance of the trade depends partly on Swan’s position. As an insider, he may have a closer view of ADP’s operations and long-term strategy than outside investors, though he is still restricted from trading on material nonpublic information. A purchase of this size can be read as a show of confidence in the company’s valuation or prospects, but it is only one data point and doesn’t provide a complete picture on its own. This buy also stands out against the other reported insider activity in the past 30 days: Executive VP Brian L. Michaud sold 848 shares on May 8, 2026, for roughly $179,890 at $212.13 per share. With one notable buyer and one seller close in time, the recent pattern is mixed, suggesting insiders’ actions are not uniformly pointed in one direction.