ADP
AUTOMATIC DATA PROCESSING IN
Closing price as of May 8, 2026
18 superinvestors own ADP
Based on latest 13F filings — data is 45–90 days delayed
| Investor | Weight | Activity |
|---|---|---|
| Bill Ackman | 9.93% | Held |
| Terry Smith | 5.78% | New |
| Francois Rochon | 3.12% | New |
| Viking Global Investors | 2.62% | Added |
| David Einhorn | 2.24% | Held |
| Mason Hawkins | 1.17% | Reduced |
| Hillman Capital Management | 0.78% | Held |
| First Eagle Investment Management | 0.77% | Added |
| Jensen Investment Management | 0.42% | Reduced |
| Tweedy Browne Co. | 0.27% | Held |
| Mairs & Power | 0.26% | Added |
| David Katz | 0.25% | Added |
| Christopher Davis | 0.02% | Held |
| Polen Capital Management | 0.00% | Reduced |
| Dodge & Cox | 0.00% | Reduced |
| Ruane Cunniff | 0.00% | Reduced |
| Kenneth Fisher | 0.00% | Reduced |
| Bill Nygren | 0.00% | Held |
Recent insider activity — ADP
Open-market purchases (P) and sales (S) from SEC Form 4 filings · last 12 months
No open-market insider trades in the last 12 months.
Form 4 filings for option exercises and other transaction types are excluded.
Congressional trades — ADP
STOCK Act disclosures · last 12 months
Congressional trade data coming soon.
We are sourcing STOCK Act disclosures and will display them here shortly.
Learn more
What Is SEC Form 4?
Understand the insider trade filings behind ADP activity.
What Is a 13F Filing?
How superinvestors disclose their quarterly holdings.
Insider Cluster Buying
Why multiple insiders buying together is a strong signal.
Superinvestor Consensus
The most widely held stocks across all tracked institutions.