Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
ADP
AUTOMATIC DATA PROCESSINGData as of 2026 Q1 (03-31) · 13F snapshot
Summary
AUTOMATIC DATA PROCESSING (ADP) is held by 10 tracked hedge-fund managers, a combined reported value of ~$1.62B; the largest are Bill Ackman, Terry Smith, Izzy Englander. This quarter: 1 new, 2 added, 3 trimmed, 1 closed. 20 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Mixed
Gurus holding10
Congress trades20
Price$226.21vs quarter-end+11.33%
Sectors0
This quarter's moves
Top holderBill AckmanNew1
Added2
Trimmed / sold4
Bill AckmanHold
Value $666.20M9.9% of portfolio4,029,5262019 Q2
Value $78.59M— of portfolio386,8002026 Q1
David EinhornHold
Value $59.76M2.2% of portfolio1,343,9172010 Q1
Value $31.29M— of portfolio154,0002026 Q1
Value $25.93M— of portfolio127,6002026 Q1
Value $16.99M— of portfolio83,6002026 Q1
Value $9.53M— of portfolio46,9002026 Q1
Value $1.50M— of portfolio7,4002026 Q1
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Bill Ackman | $666.20M | 9.9% | Hold |
| Ken GriffinCALL | $78.59M | — | — |
| David Einhorn | $59.76M | 2.2% | Hold |
| Ken GriffinPUT | $31.29M | — | — |
| Izzy EnglanderPUT | $25.93M | — | — |
| Izzy EnglanderCALL | $16.99M | — | — |
| Steven CohenCALL | $9.53M | — | — |
| Steven CohenPUT | $1.50M | — | — |