🕵️ Automatic Data Processing Inc ($ADP)
SEC insider & ownership activity, last 12 months · CIK 8670 · every row links its SEC filing
Over the last 12 months insiders sold $13.8M against $746K of open-market buying. Black Maria sold $8.6M through a 10b5-1 trading plan in 20 lots (Jan–Sep). 1 planned sale is pending, the largest $1.8M (DeSilva Joseph). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $746K (1 lots) · 6 sellers, $13.8M (38 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Black Maria | 0 | – | 20 | $8.6M | Sep 2, 2026 |
| Desilva Joseph | 0 | – | 2 | $2.0M | Sep 3, 2026 |
| Kwon David | 0 | – | 6 | $1.3M | Aug 20, 2026 |
| D'Ambrosio Christopher | 0 | – | 5 | $1.0M | Sep 2, 2026 |
| Swan Robert Holmes | 1 | $746K | 0 | – | May 7, 2026 |
| Foskett David | 0 | – | 2 | $496K | Sep 2, 2026 |
| Brian L. Michaud | 0 | – | 3 | $448K | Aug 21, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.5% | 13G | Apr 29, 2026 | filing ↗ | |
| State Street Corporation | 5.1% | 13G | Aug 7, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| DeSilva Joseph | $178K | Sep 3, 2026 | filing ↗ |
| D'Ambrosio Christopher | $530K | Sep 2, 2026 | filing ↗ |
| Black Maria | $8.4M | Sep 2, 2026 | filing ↗ |
| Foskett David | $433K | Sep 2, 2026 | filing ↗ |
| DeSilva Joseph | $1.8M | Sep 2, 2026 | filing ↗ |
| Brian L. Michaud | $34K | Aug 21, 2026 | filing ↗ |
| Kwon David | $223K | Aug 20, 2026 | filing ↗ |
| Kwon David | $641K | Jul 30, 2026 | filing ↗ |
| Brian L. Michaud | $180K | May 8, 2026 | filing ↗ |
| D'Ambrosio Christopher | $106K | Apr 14, 2026 | filing ↗ |
| D'Ambrosio Christopher | $113K | Mar 16, 2026 | filing ↗ |
| D'Ambrosio Christopher | $115K | Feb 17, 2026 | filing ↗ |
| Brian L. Michaud | $234K | Feb 6, 2026 | filing ↗ |
| Foskett David | $63K | Feb 5, 2026 | filing ↗ |
| D'Ambrosio Christopher | $142K | Jan 13, 2026 | filing ↗ |
| Kwon David | $213K | Jan 12, 2026 | filing ↗ |
| Kwon David | $234K | Jan 6, 2026 | filing ↗ |
| Black Maria | $181K | Jan 5, 2026 | filing ↗ |
| John P. Jones III | $4.0M | Nov 19, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 26, 2026 | filing ↗ |
| New financial obligation (2.03) | Jun 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 26, 2026 | filing ↗ |
| Material agreement (1.01) | May 4, 2026 | filing ↗ |
| Other events (8.01) | May 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 4, 2026 | filing ↗ |
| Earnings (2.02) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Earnings (2.02) | Jan 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 28, 2026 | filing ↗ |
| Shareholder vote (5.07) | Nov 12, 2025 | filing ↗ |
| Earnings (2.02) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |