Teradata Corp /DE/ SEC filings TDC
Teradata Corp /DE/ has 1,001 filings in SEC EDGAR's recent list, going back to Apr 30, 2014. Its latest annual report, Form ARS, was filed on Mar 26, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 6, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 6, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 2, 2026 |
| 4 | Insider transaction | Sep 17, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Sep 17, 2026 | Sep 15, 2026 |
| 144 | Notice of proposed sale | Sep 15, 2026 | — |
| 144 | Notice of proposed sale | Sep 15, 2026 | — |
| 4 | Insider transaction | Sep 3, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 14, 2026 |
| 8-K |
Current report
Material agreement
|
Aug 17, 2026 | Aug 12, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 12, 2026 | — |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 1, 2026 |
| 3 | Initial insider ownership | Aug 4, 2026 | Aug 1, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 3, 2026 | Jul 30, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 30, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 8, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 7, 2026 | — |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Jun 24, 2026 | Jun 24, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 17, 2026 | — |
| 4 | Insider transaction | Jun 17, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Jun 10, 2026 | Jun 8, 2026 |
| 144 | Notice of proposed sale | Jun 8, 2026 | — |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2026 | — |
| 4 | Insider transaction | May 26, 2026 | May 22, 2026 |
| 144 | Notice of proposed sale | May 22, 2026 | — |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 19, 2026 | May 14, 2026 |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| S-8 | Employee stock plan registration | May 14, 2026 | — |
| 4 | Insider transaction | May 13, 2026 | May 12, 2026 |
| 144 | Notice of proposed sale | May 12, 2026 | — |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 8, 2026 | May 7, 2026 |
| 144 | Notice of proposed sale | May 7, 2026 | — |
| 144 | Notice of proposed sale | May 7, 2026 | — |
| 10-Q | Quarterly report | May 6, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 5, 2026 | May 5, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| ARS | Annual report to shareholders | Mar 26, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 26, 2026 | — |
| DEF 14A | Proxy statement | Mar 26, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 1, 2026 |
| 3 | Initial insider ownership | Mar 10, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 3, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 10-K | Annual report | Feb 27, 2026 | Dec 31, 2025 |
| 144 | Notice of proposed sale | Feb 26, 2026 | — |
| 4 | Insider transaction | Feb 25, 2026 | Feb 24, 2026 |
| 144 | Notice of proposed sale | Feb 24, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Feb 11, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 12, 2026 | — |
| 144 | Notice of proposed sale | Feb 11, 2026 | — |
| 8-K |
Current report
Material agreement
|
Feb 11, 2026 | Feb 10, 2026 |
| DEFA14A | Additional proxy material | Feb 10, 2026 | — |
| 8-K |
Current report
Results of operations
|
Feb 10, 2026 | Feb 10, 2026 |
| 4 | Insider transaction | Nov 18, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 18, 2025 | Nov 17, 2025 |
| 8-K |
Current report
Other events
|
Nov 18, 2025 | Nov 17, 2025 |
| 3 | Initial insider ownership | Nov 17, 2025 | Nov 5, 2025 |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2025 | Nov 4, 2025 |
| 144 | Notice of proposed sale | Aug 27, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2025 | Aug 5, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 3 | Initial insider ownership | Jun 17, 2025 | Jun 12, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2025 | — |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 144 | Notice of proposed sale | May 22, 2025 | — |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 3 | Initial insider ownership | May 20, 2025 | May 12, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 20, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| S-8 | Employee stock plan registration | May 15, 2025 | — |
| S-8 | Employee stock plan registration | May 15, 2025 | — |
| S-8 POS | Filing | May 15, 2025 | — |
| 8-K |
Current report
Officer or director change
|
May 15, 2025 | May 15, 2025 |
| 3 | Initial insider ownership | May 7, 2025 | Apr 28, 2025 |
| 10-Q | Quarterly report | May 7, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 6, 2025 | May 6, 2025 |
| 8-K |
Current report
Officer or director change
|
May 5, 2025 | May 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 17, 2025 | — |
| 4 | Insider transaction | Apr 8, 2025 | Apr 7, 2025 |
| ARS | Annual report to shareholders | Mar 27, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 27, 2025 | — |
| DEF 14A | Proxy statement | Mar 27, 2025 | May 15, 2025 |
| 4 | Insider transaction | Mar 27, 2025 | Mar 25, 2025 |
| 3 | Initial insider ownership | Mar 27, 2025 | Mar 24, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 21, 2025 | — |
| 4 | Insider transaction | Mar 11, 2025 | Mar 10, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 144 | Notice of proposed sale | Mar 10, 2025 | — |
| 144 | Notice of proposed sale | Mar 7, 2025 | — |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 144 | Notice of proposed sale | Mar 4, 2025 | — |
| 144 | Notice of proposed sale | Mar 4, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 27, 2025 |
| 144 | Notice of proposed sale | Feb 28, 2025 | — |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 26, 2025 | Feb 7, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 26, 2025 | Feb 21, 2025 |
| 10-K | Annual report | Feb 21, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Feb 11, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Dec 10, 2024 | Dec 9, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 144 | Notice of proposed sale | Nov 8, 2024 | — |
| 4 | Insider transaction | Nov 8, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Nov 8, 2024 | Nov 8, 2024 |
| 144 | Notice of proposed sale | Nov 7, 2024 | — |
| 10-Q | Quarterly report | Nov 5, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Nov 4, 2024 | Oct 31, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 4 | Insider transaction | Sep 11, 2024 | Sep 10, 2024 |
| 4 | Insider transaction | Sep 11, 2024 | Sep 10, 2024 |
| 144 | Notice of proposed sale | Sep 10, 2024 | — |
| 144 | Notice of proposed sale | Sep 10, 2024 | — |
| 4 | Insider transaction | Sep 3, 2024 | Aug 29, 2024 |
| 144 | Notice of proposed sale | Aug 29, 2024 | — |
| 4 | Insider transaction | Aug 14, 2024 | Aug 13, 2024 |
| 144 | Notice of proposed sale | Aug 13, 2024 | — |
| 10-Q | Quarterly report | Aug 6, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Aug 5, 2024 | Aug 5, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Prepackaged Software (SIC 7372)
- Listed as
- TDC (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- San Diego, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 816761
- Former names
- TERADATA CORP /DE/ (until Nov 6, 2026)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.