What SEC filings does Teradata Corporation submit to the SEC?

Teradata Corporation (TDC) 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 TDC?

A Form 4 for TDC 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 Teradata Corporation?

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 TDC?

The 10-K is Teradata Corporation'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 TDC SEC filings directly on EDGAR?

You can view all historical Teradata Corporation filings on the SEC EDGAR company page for TDC. Each filing card on this page links directly to the original SEC document.

How often does Teradata Corporation file with the SEC?

Teradata Corporation 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 TDC shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

TDC SEC Filing News — Teradata Corporation

Latest SEC filings for Teradata Corporation (TDC) 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: 2026-09-17.

Teradata Corporation, together with its subsidiaries, provides an AI and knowledge platforms in the United States and internationally. It operates in two segments, Product Sales and Consulting Services. The company's AI and Knowledge platform designed for enterprise-grade workloads. Its consulting services include support services for organizations to establish data analytics and AI vision, enable a hybrid ecosystem architecture, and identify and operationalize opportunities. The company serves …

Sector: Technology Industry: Software - Infrastructure Market Cap: $2.9B

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for TDC currently lean bearish. Of the 20 filing records displayed, 4 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.

TDC Filing Activity Snapshot 2026-06-02 — 2026-09-17

Insider Transactions (Form 4)

0 buys vs 4 sells

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

Largest Form 144 Filing

$1.44M

Hutchinson Michael D (Chief Operating Officer) · 2026-09-17

48,077 shares · Form 4

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 12 · 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 12 filings in this group are Form 4s for Teradata Corporation.

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 12 insider filings shown, the breakdown is 7 compensation award, 4 open-market sale and 1 tax withholding. 4 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×7: 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 ×4: 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 Open-market sale Insider Selling 2026-09-17

TDC insider Hutchinson Michael D (Chief Operating Officer) sold 48,077 shares (~$1.44M)

Hutchinson Michael D, listed as Chief Operating Officer at TERADATA CORP /DE/, reported an open-market sale of 48,077 TDC 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	48,077	$30.00	$1.44M

Filing: Form 4 (Insider Transaction) Insider: Hutchinson Michael D (Chief Operating Officer) Shares: 48,077 Est. Value: $1.44M

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-17

TDC insider MCMILLAN STEPHEN (Director, President and CEO) sold 10,000 shares (~$300.2K)

MCMILLAN STEPHEN, listed as Director, President and CEO at TERADATA CORP /DE/, reported an open-market sale of 10,000 TDC 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	10,000	$30.02	$300.2K

Filing: Form 4 (Insider Transaction) Insider: MCMILLAN STEPHEN (Director, President and CEO) Shares: 10,000 Est. Value: $300.2K

View on SEC EDGAR → Open Filing Document →

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

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

Fisher Melissa B (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 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	619	—	—
`A`	Compensation award	344	—	—

Filing: Form 4 (Insider Transaction) Insider: Fisher Melissa B (Director) Shares: 963

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-18

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

Bacus Lisa R (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 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	2,197	—	—

Filing: Form 4 (Insider Transaction) Insider: Bacus Lisa R (Director) Shares: 2,197

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-18

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

Fisher Melissa B (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 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	2,197	—	—

Filing: Form 4 (Insider Transaction) Insider: Fisher Melissa B (Director) Shares: 2,197

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-18

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

Gianoni Michael P (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 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	2,197	—	—

Filing: Form 4 (Insider Transaction) Insider: Gianoni Michael P (Director) Shares: 2,197

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-18

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

McElhatton Todd (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 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	2,197	—	—

Filing: Form 4 (Insider Transaction) Insider: McElhatton Todd (Director) Shares: 2,197

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-18

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

Nelson Kimberly K. (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 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	2,197	—	—

Filing: Form 4 (Insider Transaction) Insider: Nelson Kimberly K. (Director) Shares: 2,197

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-04

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

Leukert Bernd (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 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	8,330	—	—

Filing: Form 4 (Insider Transaction) Insider: Leukert Bernd (Director) Shares: 8,330

View on SEC EDGAR → Open Filing Document →

Form 4 Tax withholding Tax / Compensation Filing 2026-06-17

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

Rogers Scot Frazier (Chief Administrative 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 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	10,266	$33.62	$345.1K
`F`	Tax withholding on vested shares	13,247	$33.62	$445.4K

Filing: Form 4 (Insider Transaction) Insider: Rogers Scot Frazier (Chief Administrative Officer) Shares: 23,513

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-06-10

TDC insider CHOU TIMOTHY C K (Director) sold 5,657 shares (~$190.8K)

CHOU TIMOTHY C K, listed as Director at TERADATA CORP /DE/, reported an open-market sale of 5,657 TDC 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	5,657	$33.72	$190.8K

Filing: Form 4 (Insider Transaction) Insider: CHOU TIMOTHY C K (Director) Shares: 5,657 Est. Value: $190.8K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-06-02

TDC insider Petley Richard J (Chief Revenue Officer) sold 17,227 shares (~$603.0K)

Petley Richard J, listed as Chief Revenue Officer at TERADATA CORP /DE/, reported an open-market sale of 17,227 TDC 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	16,237	$35.00	$568.3K
`S`	Open-market sale	990	$35.01	$34.7K

Filing: Form 4 (Insider Transaction) Insider: Petley Richard J (Chief Revenue Officer) Shares: 17,227 Est. Value: $603.0K

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 3 · 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. Teradata Corporation has 3 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 2026-09-15

TDC Form 144 filed for proposed insider sale by STEPHEN MCMILLAN (10,000 shares) ~$293.7K

STEPHEN MCMILLAN filed a Form 144 with the SEC indicating intent to sell TDC (TERADATA CORP /DE/) 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: STEPHEN MCMILLAN Shares: 10,000 Est. Value: $293.7K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-09-15

TDC Form 144 filed for proposed insider sale by Hutchinson Michael D (48,077 shares) ~$1.44M

Hutchinson Michael D filed a Form 144 with the SEC indicating intent to sell TDC (TERADATA CORP /DE/) 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: Hutchinson Michael D Shares: 48,077 Est. Value: $1.44M

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-06-08

TDC Form 144 filed for proposed insider sale by CHOU TIMOTHY C K (5,657 shares) ~$190.8K

CHOU TIMOTHY C K filed a Form 144 with the SEC indicating intent to sell TDC (TERADATA CORP /DE/) 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: CHOU TIMOTHY C K Shares: 5,657 Est. Value: $190.8K

View on SEC EDGAR → Open Filing Document →

Material Events 4 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 4 in this period for Teradata Corporation. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-17

TDC filed 8-K — material company event

TERADATA CORP /DE/ filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-04

TDC filed 8-K — material company event

TERADATA CORP /DE/ filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-03

TDC filed 8-K — material company event

TERADATA CORP /DE/ filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-06-24

TDC filed 8-K — material company event

TERADATA CORP /DE/ filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Teradata Corporation.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-05

TDC filed Quarterly Report (10-Q)

TERADATA CORP /DE/ filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify Teradata Corporation'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 TDC. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — TDC SEC Filings

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TDC Full Analysis

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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