Automatic Data Processing, Inc. (ADP) Ownership

NASDAQ: ADPTop holders, insider trades and short interest.

ADP ownership summary

as of October 18, 2026
Institutions
91.4%
of shares outstanding
Insiders
0.14%
of shares outstanding
Shares outstanding
396.3M
Float
396.3M
shares available to trade
Short interest
2.77%
11.0M shares short
Days to cover
4.89
short interest up 4.2% vs prior month
  • Institutions 91.43%
  • Insiders 0.14%
  • Other investors 8.43%

ADP top institutional holders

20 largest
Automatic Data Processing, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc9.12%36.2M$10.45B+657,399 (+1.9%)June 30, 2026
2Vanguard Capital Management, LLC6.59%26.1M$7.54B−54,870 (−0.2%)June 30, 2026
3State Street Corp5.15%20.4M$5.89B+1.1M (+5.5%)June 30, 2026
4Amvescap Plc.3.42%13.6M$3.92B+902,206 (+7.1%)June 30, 2026
5Charles Schwab Investment Management Inc3.21%12.7M$3.68B+1.2M (+10.1%)June 30, 2026
6Geode Capital Management, LLC3.02%12.0M$3.45B−38,187 (−0.3%)June 30, 2026
7Vanguard Portfolio Management, LLC2.66%10.5M$3.05B−510,740 (−4.6%)June 30, 2026
8Arnhold & S. Bleichroeder Advisers, LLC2.61%10.3M$2.99B+7.5M (+263.1%)June 30, 2026
9Wellington Management Company LLP2.53%10.0M$2.90B−75,157 (−0.7%)June 30, 2026
10Morgan Stanley - Brokerage Accounts2.11%8.4M$2.42B+2.0M (+30.8%)June 30, 2026
11Capital Research Global Investors2.09%8.3M$2.39B−278,215 (−3.3%)June 30, 2026
12Wells Fargo & Co1.82%7.2M$2.08B+285,435 (+4.1%)June 30, 2026
13Northern Trust Corp1.47%5.8M$1.68B−190,079 (−3.2%)June 30, 2026
14Bank of America Corp1.39%5.5M$1.59B+238,703 (+4.5%)June 30, 2026
15The Goldman Sachs Group Inc1.32%5.2M$1.51B+848,043 (+19.4%)June 30, 2026
16AllianceBernstein L.P.1.31%5.2M$1.50B+81,968 (+1.6%)June 30, 2026
17Deutsche Bank AG1.12%4.4M$1.28B+368,359 (+9.0%)June 30, 2026
18UBS Asset Mgmt Americas Inc1.07%4.3M$1.23B+129,376 (+3.1%)June 30, 2026
19State Farm Mutual Automobile Ins Co0.92%3.7M$1.06B—June 30, 2026
20Bank of New York Mellon Corp0.82%3.2M$935.9M−4,733 (−0.1%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 15.2M shares and 7 cut 1.2M.

ADP top mutual fund and ETF holders

20 largest
Automatic Data Processing, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest3.21%12.7M$3.67B−26,043 (−0.2%)August 31, 2026
2Schwab US Dividend Equity ETF™2.79%11.0M$3.19B+30,544 (+0.3%)September 30, 2026
3Vanguard 500 Index Investor2.63%10.4M$3.01B−186,875 (−1.8%)September 30, 2026
4Invesco QQQ Trust2.09%8.3M$2.40B−13,530 (−0.2%)September 30, 2026
5iShares Core S&P 500 ETF1.34%5.3M$1.53B−8,510 (−0.2%)September 30, 2026
6Fidelity 500 Index1.31%5.2M$1.50B+19,940 (+0.4%)August 31, 2026
7State Street® SPDR® S&P 500® ETF1.23%4.9M$1.41B—September 30, 2026
8Vanguard MStar Value Index Investor0.95%3.8M$1.09B−38,884 (−1.0%)September 30, 2026
9First Eagle Global A0.92%3.6M$1.05B—August 31, 2026
10American Funds American Mutual A0.86%3.4M$987.3M—September 30, 2026
11Vanguard Dividend Growth Inv0.81%3.2M$924.2M−306,412 (−8.7%)June 30, 2026
12Vanguard Equity-Income Inv0.76%3.0M$874.1M−347,565 (−10.3%)June 30, 2026
13Vanguard Dividend Appreciation ETF0.57%2.2M$649.3M−15,176 (−0.7%)September 30, 2026
14State Street® IndstrlSelSectSPDR®ETF0.56%2.2M$644.3M−2,500 (−0.1%)September 30, 2026
15Vanguard Institutional Index I0.53%2.1M$607.0M−35,418 (−1.7%)September 30, 2026
16iShares MSCI USA Quality Factor ETF0.53%2.1M$605.5M+1,952 (+0.1%)September 30, 2026
17First Trust Rising Dividend Achiev ETF0.50%2.0M$575.2M+3,443 (+0.2%)September 30, 2026
18MS INVF Global Brands A0.47%1.9M$542.7M−431,611 (−18.7%)December 31, 2025
19Invesco NASDAQ 100 ETF0.46%1.8M$527.7M+4,284 (+0.2%)September 30, 2026
20Vanguard High Dividend Yield ETF0.41%1.6M$471.1M+4,144 (+0.3%)September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

ADP insider transactions

latest 20
Automatic Data Processing, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-03-30Ro KhannaBuy$205.47——
2026-03-23Ro KhannaBuy$209.71——
2026-03-19Richard McCormickBuy$210.66——
2026-03-19Richard McCormickSell$210.66——
2026-03-16Christopher D'ambrosioSell$208.45543$113,188
2026-02-24Ro KhannaSell$205.52——
2026-02-17Ro KhannaSell$213.08——
2026-02-06Brian L MichaudSell$234.181,000$234,180
2026-02-05David FoskettSell$237.00266$63,042
2026-01-13Christopher D'ambrosioSell$262.29543$142,423
2026-01-12David KwonSell$264.80806$213,429
2026-01-06David KwonSell$260.00900$234,000
2025-11-12Marjorie Taylor GreeneBuy$254.55——
2025-11-10Ro KhannaSell$254.06——
2025-11-05Richard McCormickBuy$259.57——
2025-11-03Ro KhannaBuy$257.17——
2025-10-30Ro KhannaSell$261.53——
2025-10-07Ro KhannaSell$292.94——
2025-09-29Ro KhannaSell$292.66——
2025-09-10Christopher D'ambrosioSell$296.90597$177,249

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

ADP shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns ADP

Institutional investors own 91.4% of ADP's shares and insiders 0.14%. The largest holder is BlackRock Inc with 9.12% of the shares (36.2M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 7 reduced their stake in the latest filings. Short interest is 2.77% of the float, or 4.89 days of average trading volume. The share count fell 15.7% since 2014.

Related: ADP analyst forecast, ADP key metrics, ADP dividend history. See the ADP stock overview for the latest quote and news.

ADP ownership FAQ

Who owns the most ADP stock?

The largest shareholders of ADP are BlackRock Inc (9.12%), Vanguard Capital Management, LLC (6.59%), State Street Corp (5.15%), Amvescap Plc. (3.42%), Charles Schwab Investment Management Inc (3.21%).

What percentage of ADP is owned by institutions?

Institutions hold 91.4% of ADP's shares outstanding; insiders hold 0.14%.

Which funds own ADP?

The largest fund holders of ADP are Vanguard MStar Total Stk Mkt Idx Invest (3.21%), Schwab US Dividend Equity ETF™ (2.79%), Vanguard 500 Index Investor (2.63%), Invesco QQQ Trust (2.09%), iShares Core S&P 500 ETF (1.34%).

What is ADP's short interest?

11.0M shares of ADP were sold short, 2.77% of the float; at the average daily volume it would take 4.89 days to cover.

Are insiders buying or selling ADP?

Of the latest 20 reported insider transactions in ADP (since September 10, 2025), 6 were purchases and 14 were sales.

How many shares of ADP are outstanding?

ADP has 396.3M shares outstanding, of which 396.3M are in the public float.

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