ADP Congressional Stock Trades & Insider Buying (2026)

ADP insider buying and selling over the past year

Insiders at AUTOMATIC DATA PROCESSING INC only sold stock in the open market over the past year: 8 Form 4 sales totaling $1.30M, against no open-market purchases.

Most of the selling was pre-scheduled: 8 of the 8 sales (100.0%) were flagged as Rule 10b5-1 plan trades, which are set up in advance and say less about an insider's current view than discretionary sales. Activity clustered in 2026-01 (4 trades) and 2026-02 (3 trades); the latest filing in this window is dated 2026-03-16. The average open-market sale price was $244.45; the last close of $288.90 is 18.2% above that level, so sellers left upside on the table. The single largest trade was a sale of 1,000 shares worth $234.2K on 2026-02-06. Since the most recent filing the stock has moved +38.2%, from $209.11.

Where ADP trades relative to its one-year range

AUTOMATIC DATA PROCESSING INC closed at $288.90 on 2026-10-16, inside a one-year range of $188.79 to $288.90. That puts the stock near the top of its range, at 100.0% of the distance from low to high. Over one year the share price moved +3.1%, and over roughly three months +13.2%. Average daily volume over the last month was about 2,060,104 shares.

Across 209 companies in the same SEC industry group (SIC 73) with a full year of prices in Gemral Edge, the median one-year return was -10.2%. ADP is ahead of that median and beat 63% of that peer group on this measure.

Members of Congress who traded ADP

STOCK Act disclosures show 50 trades in ADP by 13 members of Congress over five years (28 purchases, 22 sales), most recently on 2026-07-30. The most active traders were Ro Khanna (D-CA), 25 trades; Jared Moskowitz (D-FL), 4 trades; Josh Gottheimer (D-NJ), 4 trades; Richard McCormick (R-GA), 4 trades; Gilbert Ray Cisneros, Jr. (D-CA), 2 trades.

By party the trades split 35 by Democrats, 15 by Republicans; by chamber, 48 from the House, 2 from the Senate.

Compare ADP with indexed peers from the same industry group

These peers have full Gemral Edge dossiers and the closest one-year price move to ADP:

• SNPS one-year return +3.3%
• MSFT one-year return +3.4%
• URI one-year return +2.4%
• PLTR one-year return +4.4%
• XYZ one-year return +4.5%

Sources and method

Every figure above is computed from public filings stored in Gemral Edge, not estimated. Insider figures count only open-market purchases and sales reported on SEC Form 4; option exercises, grants and gifts are excluded because they do not reflect a decision to buy or sell at market prices.

• SEC EDGAR Form 4 (edge_insider_trades, codes P/S open-market only) — as of 2026-03-16
• edge_prices_eod (end-of-day close) — as of 2026-10-16
• House PTR / Senate eFD disclosures (edge_congress_trades) — as of 2026-07-30

ADP data questions

Are ADP insiders buying or selling stock?

Insiders at AUTOMATIC DATA PROCESSING INC only sold stock in the open market over the past year: 8 Form 4 sales totaling $1.30M, against no open-market purchases.

What is the one-year price range for ADP?

Based on end-of-day closes through 2026-10-16, ADP traded between $188.79 and $288.90, last closing at $288.90.

Has any member of Congress traded ADP stock?

Yes. 13 members disclosed 50 trades in ADP over five years; the most recent disclosed trade date is 2026-07-30.