What SEC filings does Automatic Data Processing, Inc. submit to the SEC?

Automatic Data Processing, Inc. (ADP) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about ADP?

A Form 4 for ADP discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Automatic Data Processing, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for ADP?

The 10-K is Automatic Data Processing, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all ADP SEC filings directly on EDGAR?

You can view all historical Automatic Data Processing, Inc. filings on the SEC EDGAR company page for ADP. Each filing card on this page links directly to the original SEC document.

How often does Automatic Data Processing, Inc. file with the SEC?

Automatic Data Processing, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling ADP shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

ADP SEC Filing News — Automatic Data Processing, Inc.

Latest SEC filings for Automatic Data Processing, Inc. (ADP) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-10.

Automatic Data Processing, Inc. provides cloud-based human capital management (HCM) solutions worldwide. It operates in two segments, Employer Services and Professional Employer Organization (PEO). The Employer Services segment offers strategic, cloud-based platforms, and human resources (HR) outsourcing solutions. This segment's offerings include RUN Powered by ADP, a software platform for small business payroll, HR, and compliance; ADP Workforce Now, a HCM solution used across mid-sized and la…

Sector: Technology Industry: Software - Application Market Cap: $114.5B CIK: 8670

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for ADP currently lean bearish. Of the 20 filing records displayed, 6 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

ADP Filing Activity Snapshot 2026-09-02 — 2026-09-10

Insider Transactions (Form 4)

0 buys vs 5 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$8.44M

Black Maria · 2026-09-02

29,810 shares · Form 144

Form 144 Notices

Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 16 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 16 filings in this group are Form 4s for Automatic Data Processing, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 16 insider filings shown, the breakdown is 10 compensation award, 5 open-market sale and 1 tax withholding. 5 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×10: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×5: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Tax withholding ×1: Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Form 4 Compensation award Tax / Compensation Filing 2026-09-10

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Sugla Vishwas (Chief Strategy Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	2,827	—	—
`A`	Compensation award	2,073	—	—

Filing: Form 4 (Insider Transaction) Insider: Sugla Vishwas (Chief Strategy Officer) Shares: 4,900

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-04

ADP insider DeSilva Joseph (Executive VP) sold 631 shares (~$178.5K)

DeSilva Joseph, listed as Executive VP at AUTOMATIC DATA PROCESSING INC, reported an open-market sale of 631 ADP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	631	$282.87	$178.5K

Filing: Form 4 (Insider Transaction) Insider: DeSilva Joseph (Executive VP) Shares: 631 Est. Value: $178.5K

View on SEC EDGAR → Open Filing Document →

Form 4 Tax withholding Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Rodriguez Carlos A (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	13,471	$283.49	$3.82M

Filing: Form 4 (Insider Transaction) Insider: Rodriguez Carlos A (Director) Shares: 13,471

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Orihuela Samantha D (Chief Marketing Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	1,163	—	—
`F`	Tax withholding on vested shares	154	$283.49	$43.7K

Filing: Form 4 (Insider Transaction) Insider: Orihuela Samantha D (Chief Marketing Officer) Shares: 1,317

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Michaud Brian L. (Executive VP) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	2,683	—	—
`F`	Tax withholding on vested shares	2,281	$283.49	$646.6K

Filing: Form 4 (Insider Transaction) Insider: Michaud Brian L. (Executive VP) Shares: 4,964

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Magliulo Virginia (Executive VP) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	2,858	—	—
`F`	Tax withholding on vested shares	2,708	$283.49	$767.7K

Filing: Form 4 (Insider Transaction) Insider: Magliulo Virginia (Executive VP) Shares: 5,566

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Lehberger Jonathan S (Corp. VP) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	903	—	—
`F`	Tax withholding on vested shares	406	$283.49	$115.1K

Filing: Form 4 (Insider Transaction) Insider: Lehberger Jonathan S (Corp. VP) Shares: 1,309

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Kwon David (Corp VP) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	1,763	—	—
`F`	Tax withholding on vested shares	1,969	$283.49	$558.2K

Filing: Form 4 (Insider Transaction) Insider: Kwon David (Corp VP) Shares: 3,732

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

KUTAM SREENIVASA (Corp VP) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	5,259	—	—
`F`	Tax withholding on vested shares	7,328	$283.49	$2.08M

Filing: Form 4 (Insider Transaction) Insider: KUTAM SREENIVASA (Corp VP) Shares: 12,587

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Hadley Peter J (CFO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,464	—	—
`F`	Tax withholding on vested shares	1,650	$283.49	$467.8K

Filing: Form 4 (Insider Transaction) Insider: Hadley Peter J (CFO) Shares: 8,114

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-03

ADP insider Foskett David (Corp. VP) sold 1,529 shares (~$432.7K)

Foskett David, listed as Corp. VP at AUTOMATIC DATA PROCESSING INC, reported an open-market sale of 1,529 ADP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	4,006	—	—
`F`	Tax withholding on vested shares	1,980	$283.49	$561.3K
`S`	Open-market sale	1,529	$283.00	$432.7K

Filing: Form 4 (Insider Transaction) Insider: Foskett David (Corp. VP) Shares: 1,529 Est. Value: $432.7K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-03

ADP insider DeSilva Joseph (Executive VP) sold 6,512 shares (~$1.84M)

DeSilva Joseph, listed as Executive VP at AUTOMATIC DATA PROCESSING INC, reported an open-market sale of 6,512 ADP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	5,089	—	—
`F`	Tax withholding on vested shares	7,482	$283.49	$2.12M
`S`	Open-market sale	6,512	$283.00	$1.84M

Filing: Form 4 (Insider Transaction) Insider: DeSilva Joseph (Executive VP) Shares: 6,512 Est. Value: $1.84M

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-03

ADP insider D'Ambrosio Christopher (Corp. VP) sold 1,872 shares (~$529.8K)

D'Ambrosio Christopher, listed as Corp. VP at AUTOMATIC DATA PROCESSING INC, reported an open-market sale of 1,872 ADP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	2,565	—	—
`F`	Tax withholding on vested shares	1,735	$283.49	$491.9K
`S`	Open-market sale	1,872	$283.00	$529.8K

Filing: Form 4 (Insider Transaction) Insider: D'Ambrosio Christopher (Corp. VP) Shares: 1,872 Est. Value: $529.8K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Bonarti Michael A (Corporate Vice President) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	5,076	—	—
`F`	Tax withholding on vested shares	7,726	$283.49	$2.19M

Filing: Form 4 (Insider Transaction) Insider: Bonarti Michael A (Corporate Vice President) Shares: 12,802

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-03

ADP insider Form 4 filed for equity award, exercise, or tax withholding

Boland Paul (Corp. VP) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	3,634	—	—
`F`	Tax withholding on vested shares	3,133	$283.49	$888.2K

Filing: Form 4 (Insider Transaction) Insider: Boland Paul (Corp. VP) Shares: 6,767

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-03

ADP insider Black Maria (President & CEO) sold 29,810 shares (~$8.37M)

Black Maria, listed as President & CEO at AUTOMATIC DATA PROCESSING INC, reported an open-market sale of 29,810 ADP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	21,689	—	—
`F`	Tax withholding on vested shares	31,215	$283.49	$8.85M
`S`	Open-market sale	214	$279.21	$59.8K
`S`	Open-market sale	256	$279.44	$71.5K
`S`	Open-market sale	559	$279.93	$156.5K
`S`	Open-market sale	610	$281.86	$171.9K
`S`	Open-market sale	700	$278.59	$195.0K
`S`	Open-market sale	760	$281.70	$214.1K
`S`	Open-market sale	786	$280.27	$220.3K
`S`	Open-market sale	1,018	$281.60	$286.7K
`S`	Open-market sale	1,018	$280.60	$285.6K
`S`	Open-market sale	1,193	$280.96	$335.2K
`S`	Open-market sale	1,483	$281.13	$416.9K
`S`	Open-market sale	2,898	$279.74	$810.7K
`S`	Open-market sale	7,724	$281.66	$2.18M
`S`	Open-market sale	10,591	$280.82	$2.97M

Filing: Form 4 (Insider Transaction) Insider: Black Maria (President & CEO) Shares: 29,810 Est. Value: $8.37M

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 4 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Automatic Data Processing, Inc. has 4 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-09-03

ADP Form 144 filed for proposed insider sale by DeSilva Joseph (631 shares) ~$178.5K

DeSilva Joseph filed a Form 144 with the SEC indicating intent to sell ADP (AUTOMATIC DATA PROCESSING INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: DeSilva Joseph Shares: 631 Est. Value: $178.5K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-09-02

ADP Form 144 filed for proposed insider sale by D'Ambrosio Christopher (1,872 shares) ~$529.8K

D'Ambrosio Christopher filed a Form 144 with the SEC indicating intent to sell ADP (AUTOMATIC DATA PROCESSING INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: D'Ambrosio Christopher Shares: 1,872 Est. Value: $529.8K

View on SEC EDGAR → Open Filing Document →

Form 144 Large Proposed Insider Sale 2026-09-02

ADP Form 144 filed for proposed insider sale by Black Maria (29,810 shares) ~$8.44M

Black Maria filed a Form 144 with the SEC indicating intent to sell ADP (AUTOMATIC DATA PROCESSING INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: Black Maria Shares: 29,810 Est. Value: $8.44M

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-09-02

ADP Form 144 filed for proposed insider sale by Foskett David (1,529 shares) ~$432.7K

Foskett David filed a Form 144 with the SEC indicating intent to sell ADP (AUTOMATIC DATA PROCESSING INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Foskett David Shares: 1,529 Est. Value: $432.7K

View on SEC EDGAR → Open Filing Document →

How we classify Automatic Data Processing, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on ADP. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — ADP SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

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