ADP Automatic Data Processing, Inc.
Automatic Data Processing, Inc. (ADP) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
How much of that selling was preplanned? 100% planned / 0% discretionary
Largest single sale: $279.7K.
Where they traded
Last open-market purchase: May 7, 2026 , by SWAN ROBERT HOLMES .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| DeSilva Joseph | Executive VP | Sell 10b5-1 | 631 | $282.87 | $178.5K | 18,824 −3.2% of holding | |
| Michaud Brian L. | Executive VP | Sell 10b5-1 | 120 | $279.70 | $33.6K | 18,442 −0.6% of holding | |
| Kwon David | Corp VP | Sell 10b5-1 | 798 | $280.00 | $223.4K | 13,193 −5.7% of holding | |
| Kwon David 3 fills | Corp VP | Sell 10b5-1 | 2,414 | $265.62 | $641.2K | 11,600 −17.2% of holding | |
| Michaud Brian L. | Executive VP | Sell 10b5-1 | 848 | $212.13 | $179.9K | 14,462 −5.5% of holding | |
| SWAN ROBERT HOLMES | Director | Buy 10b5-1 | 3,619 | $206.05 | $745.7K | 5,072 | |
| D'Ambrosio Christopher | Corp. VP | Sell 10b5-1 | 543 | $195.74 | $106.3K | 8,369 −6.1% of holding | |
| D'Ambrosio Christopher | Corp. VP | Sell 10b5-1 | 543 | $208.45 | $113.2K | 8,912 −5.7% of holding | |
| D'Ambrosio Christopher | Corp. VP | Sell 10b5-1 | 543 | $212.43 | $115.3K | 9,455 −5.4% of holding | |
| Michaud Brian L. | Executive VP | Sell 10b5-1 | 1,000 | $234.18 | $234.2K | 15,310 −6.1% of holding | |
| Foskett David | Corp. VP | Sell 10b5-1 | 266 | $237.00 | $63.0K | 10,954 −2.4% of holding | |
| D'Ambrosio Christopher | Corp. VP | Sell 10b5-1 | 543 | $262.29 | $142.4K | 9,998 −5.2% of holding | |
| Kwon David | Corp VP | Sell 10b5-1 | 806 | $264.80 | $213.4K | 11,187 −6.7% of holding | |
| Kwon David | Corp VP | Sell 10b5-1 | 900 | $260.00 | $234.0K | 11,993 −7% of holding | |
| Black Maria 6 fills | President & CEO | Sell 10b5-1 | 715 | $257.17 | $183.9K | 75,716 −0.9% of holding | |
| Rodriguez Carlos A 5 fills | Director | Sell 10b5-1 | 1,273 | $293.87 | $374.1K | 22,541 −5.3% of holding |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.