AUTOMATIC DATA PROCESSING INC insider trading
ADP$257.68-6.28 (-2.38% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-11.1%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- MAMichael A. Bonarti0.0225%
- MBMaria Black0.0203%
- JPJohn P. Jones III0.0164%
- SKSreenivasa Kutam0.0125%
- CACarlos A. Rodriguez0.0121%
- PBPeter Bisson0.0057%
- SSSandra S. Wijnberg0.0052%
- WJWilliam J. Ready0.005%
- BLBrian L. Michaud0.0047%
- JDJoseph DeSilva0.0047%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| ADP | Joseph DeSilva | Open market sell$178K | -3.2% | $282.87 | $178K | Sep 3, 2026 | Sep 4, 2026 |
| ADP | David Foskett | Open market sell$433K | -9.8% | $283.00 | $433K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Joseph DeSilva | Open market sell$1.84M | -25.1% | $283.00 | $1.84M | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Christopher D'Ambrosio | Open market sell$530K | -15.9% | $283.00 | $530K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$2.97M | -11.6% | $280.82 | $2.97M | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$2.18M | -7.8% | $281.66 | $2.18M | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$811K | -2.9% | $279.74 | $811K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$417K | -1.4% | $281.13 | $417K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$335K | -1.1% | $280.96 | $335K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$286K | -1.0% | $280.60 | $286K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$287K | -1.0% | $281.60 | $287K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$220K | -0.7% | $280.27 | $220K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$214K | -0.7% | $281.70 | $214K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$195K | -0.6% | $278.59 | $195K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$172K | -0.6% | $281.86 | $172K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$156K | -0.5% | $279.93 | $156K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$71.5K | -0.2% | $279.44 | $71.5K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Maria Black | Open market sell$59.8K | -0.2% | $279.21 | $59.8K | Sep 2, 2026 | Sep 3, 2026 |
| ADP | Brian L. Michaud | Open market sell$33.6K | -0.7% | $279.70 | $33.6K | Aug 21, 2026 | Aug 24, 2026 |
| ADP | Brian L. Michaud | Open market sell$180K | -5.5% | $212.13 | $180K | May 8, 2026 | May 11, 2026 |
| ADP | Robert Holmes Swan | Open market purchase$746K | +230.8% | $206.05 | $746K | May 7, 2026 | May 11, 2026 |
| ADP | Christopher D'Ambrosio | Open market sell$106K | -6.1% | $195.74 | $106K | Apr 14, 2026 | Apr 15, 2026 |
| ADP | Christopher D'Ambrosio | Open market sell$113K | -5.7% | $208.45 | $113K | Mar 16, 2026 | Mar 17, 2026 |
| ADP | Christopher D'Ambrosio | Open market sell$115K | -5.4% | $212.43 | $115K | Feb 17, 2026 | Feb 18, 2026 |
| ADP | Brian L. Michaud | Open market sell$234K | -6.1% | $234.18 | $234K | Feb 6, 2026 | Feb 9, 2026 |
| ADP | David Foskett | Open market sell$63K | -2.4% | $237.00 | $63K | Feb 5, 2026 | Feb 9, 2026 |
| ADP | Christopher D'Ambrosio | Open market sell$142K | -5.2% | $262.29 | $142K | Jan 13, 2026 | Jan 14, 2026 |
| ADP | David Kwon | Open market sell$213K | -6.7% | $264.80 | $213K | Jan 12, 2026 | Jan 14, 2026 |
| ADP | Maria Black | Open market sell$75.9K | -0.4% | $258.09 | $75.9K | Jan 5, 2026 | Jan 6, 2026 |
| ADP | Maria Black | Open market sell$37.3K | -0.2% | $257.24 | $37.3K | Jan 5, 2026 | Jan 6, 2026 |
| ADP | Maria Black | Open market sell$25.4K | -0.1% | $258.77 | $25.4K | Jan 5, 2026 | Jan 6, 2026 |
| ADP | Maria Black | Open market sell$18.1K | -0.1% | $254.95 | $18.1K | Jan 5, 2026 | Jan 6, 2026 |
| ADP | Maria Black | Open market sell$14.3K | -0.1% | $255.73 | $14.3K | Jan 5, 2026 | Jan 6, 2026 |
| ADP | Maria Black | Open market sell$12.9K | -0.1% | $253.32 | $12.9K | Jan 5, 2026 | Jan 6, 2026 |