ADP insider buying and SEC filings, explained
Automatic Data Processing Inc. · CIK 8670
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$14.7M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 30, 2026 | Planned (10b5-1) | Virginia Magliulo (Executive VP) sold 2,927 shares at $293.70 ($860K), marked as a 10b5-1 plan trade. Holdings down 16% to 14,865 shares. | SEC filing Filed Nov 2, 2026, 4:12 PM ET |
| Sep 3, 2026 | Planned (10b5-1) | Joseph DeSilva (Executive VP) sold 631 shares at $282.87 ($178K), marked as a 10b5-1 plan trade. Holdings down 3% to 18,824 shares. | SEC filing Filed Sep 4, 2026 |
| Sep 2, 2026 | Planned (10b5-1) | David Foskett (Corp. VP) sold 1,529 shares at $283.00 ($433K), marked as a 10b5-1 plan trade. Holdings down 10% to 14,146 shares. | SEC filing Filed Sep 3, 2026 |
| Sep 2, 2026 | Planned (10b5-1) | Joseph DeSilva (Executive VP) sold 6,512 shares at $283.00 ($1.8M), marked as a 10b5-1 plan trade. Holdings down 25% to 19,455 shares. | SEC filing Filed Sep 3, 2026 |
| Sep 2, 2026 | Planned (10b5-1) | Christopher D'Ambrosio (Corp. VP) sold 1,872 shares at $283.00 ($530K), marked as a 10b5-1 plan trade. Holdings down 16% to 9,928 shares. | SEC filing Filed Sep 3, 2026 |
| Sep 2, 2026 | Planned (10b5-1) | Maria Black (CEO) sold 29,810 shares at about $280.91 ($8.4M), marked as a 10b5-1 plan trade. Holdings down 27% to 80,624 shares. | SEC filing Filed Sep 3, 2026 |
| Aug 21, 2026 | Planned (10b5-1) | Brian L. Michaud (Executive VP) sold 120 shares at $279.70 ($34K), marked as a 10b5-1 plan trade. Holdings down 1% to 18,442 shares. | SEC filing Filed Aug 24, 2026 |
| Aug 20, 2026 | Planned (10b5-1) | David Kwon (Corp VP) sold 798 shares at $280.00 ($223K), marked as a 10b5-1 plan trade. Holdings down 6% to 13,193 shares. | SEC filing Filed Aug 24, 2026 |
| Jul 30, 2026 | Planned (10b5-1) | David Kwon (Corp VP) sold 2,414 shares at $265.62 ($641K), marked as a 10b5-1 plan trade. Holdings down 20% to 9,660 shares. | SEC filing Filed Jul 31, 2026 |
| May 8, 2026 | Planned (10b5-1) | Brian L. Michaud (Executive VP) sold 848 shares at $212.13 ($180K), marked as a 10b5-1 plan trade. Holdings down 6% to 14,462 shares. | SEC filing Filed May 11, 2026 |
| May 7, 2026 | Purchase (code P) | Robert Holmes Swan (Director) bought 3,619 shares at $206.05 ($746K), reported as a purchase (code P). Holdings up 249% to 5,072 shares. | SEC filing Filed May 11, 2026 |
| Apr 14, 2026 | Planned (10b5-1) | Christopher D'Ambrosio (Corp. VP) sold 543 shares at $195.74 ($106K), marked as a 10b5-1 plan trade. Holdings down 6% to 8,369 shares. | SEC filing Filed Apr 15, 2026 |
| Mar 16, 2026 | Planned (10b5-1) | Christopher D'Ambrosio (Corp. VP) sold 543 shares at $208.45 ($113K), marked as a 10b5-1 plan trade. Holdings down 6% to 8,912 shares. | SEC filing Filed Mar 17, 2026 |
| Feb 17, 2026 | Planned (10b5-1) | Christopher D'Ambrosio (Corp. VP) sold 543 shares at $212.43 ($115K), marked as a 10b5-1 plan trade. Holdings down 5% to 9,455 shares. | SEC filing Filed Feb 18, 2026 |
| Feb 6, 2026 | Planned (10b5-1) | Brian L. Michaud (Executive VP) sold 1,000 shares at $234.18 ($234K), marked as a 10b5-1 plan trade. Holdings down 6% to 15,310 shares. | SEC filing Filed Feb 9, 2026 |
| Feb 5, 2026 | Planned (10b5-1) | David Foskett (Corp. VP) sold 266 shares at $237.00 ($63K), marked as a 10b5-1 plan trade. Holdings down 2% to 10,954 shares. | SEC filing Filed Feb 9, 2026 |
| Jan 13, 2026 | Planned (10b5-1) | Christopher D'Ambrosio (Corp. VP) sold 543 shares at $262.29 ($142K), marked as a 10b5-1 plan trade. Holdings down 5% to 9,998 shares. | SEC filing Filed Jan 14, 2026 |
| Jan 12, 2026 | Planned (10b5-1) | David Kwon (Corp VP) sold 806 shares at $264.80 ($213K), marked as a 10b5-1 plan trade. Holdings down 7% to 11,187 shares. | SEC filing Filed Jan 14, 2026 |
| Jan 6, 2026 | Planned (10b5-1) | David Kwon (Corp VP) sold 900 shares at $260.00 ($234K), marked as a 10b5-1 plan trade. Holdings down 7% to 11,993 shares. | SEC filing Filed Jan 8, 2026 |
| Jan 5, 2026 | Planned (10b5-1) | Maria Black (CEO) sold 715 shares at about $257.17 ($184K), marked as a 10b5-1 plan trade. Holdings down 1% to 75,052 shares. | SEC filing Filed Jan 6, 2026 |
57 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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