Definitive Healthcare Corp. SEC filings DH
Definitive Healthcare Corp. has 388 filings in SEC EDGAR's recent list, going back to May 28, 2021. Its latest annual report, Form ARS, was filed on Apr 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 9, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 3, 2026 | Nov 1, 2026 |
| 4 | Insider transaction | Nov 3, 2026 | Nov 1, 2026 |
| 4 | Insider transaction | Oct 27, 2026 | Oct 23, 2026 |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 1, 2026 | — |
| 3 | Initial insider ownership | Sep 16, 2026 | Sep 8, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 9, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 3, 2026 | Sep 1, 2026 |
| 8-K |
Current report
Other events
|
Sep 2, 2026 | Sep 2, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Sep 2, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Sep 2, 2026 | Aug 28, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Sep 2, 2026 | — |
| 10-Q | Quarterly report | Aug 10, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2026 | Aug 10, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 1, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 1, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 8-K |
Current report
Listing notice
|
Jun 24, 2026 | Jun 18, 2026 |
| 4 | Insider transaction | Jun 9, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| ARS | Annual report to shareholders | Apr 23, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 23, 2026 | — |
| DEF 14A | Proxy statement | Apr 23, 2026 | Jun 4, 2026 |
| 8-K |
Current report
Agreement ended
|
Apr 9, 2026 | Apr 3, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 3, 2026 | Apr 1, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 3, 2026 | Mar 30, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 24, 2026 |
| 3/A | Filing | Feb 26, 2026 | Feb 24, 2026 |
| S-8 | Employee stock plan registration | Feb 26, 2026 | — |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2026 | Feb 26, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 9, 2026 | — |
| 4 | Insider transaction | Feb 3, 2026 | Feb 1, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Feb 1, 2026 |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 1, 2026 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| 4 | Insider transaction | Nov 4, 2025 | Nov 1, 2025 |
| 4 | Insider transaction | Nov 4, 2025 | Nov 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Sep 16, 2025 | Sep 14, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 23, 2025 | Jul 20, 2025 |
| 4 | Insider transaction | Jul 3, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 1, 2025 | Jun 25, 2025 |
| 3 | Initial insider ownership | Jun 18, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 14, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 14, 2025 |
| 4 | Insider transaction | Jun 11, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 6, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 4, 2025 | Jun 2, 2025 |
| 3 | Initial insider ownership | Jun 4, 2025 | Jun 2, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 9, 2025 | — |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 28, 2025 |
| ARS | Annual report to shareholders | Apr 23, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 23, 2025 | — |
| DEF 14A | Proxy statement | Apr 23, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Apr 7, 2025 | Apr 3, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 3, 2025 |
| 3 | Initial insider ownership | Mar 4, 2025 | Mar 3, 2025 |
| S-8 | Employee stock plan registration | Feb 27, 2025 | — |
| 10-K | Annual report | Feb 27, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Feb 27, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| 4 | Insider transaction | Feb 4, 2025 | Jan 21, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 21, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 21, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 21, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Jan 16, 2025 | Jan 16, 2025 |
| 4 | Insider transaction | Jan 3, 2025 | Jan 1, 2025 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 14, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 14, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 14, 2024 |
| 4 | Insider transaction | Dec 5, 2024 | Dec 3, 2024 |
| 144 | Notice of proposed sale | Dec 3, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 12, 2024 | — |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change, Other events
|
Nov 7, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 1, 2024 |
| SC 13G | Ownership over 5% (passive) | Oct 3, 2024 | — |
| 4 | Insider transaction | Oct 1, 2024 | Sep 29, 2024 |
| 8-K |
Current report
Officer or director change
|
Oct 1, 2024 | Sep 29, 2024 |
| 4 | Insider transaction | Sep 17, 2024 | Sep 14, 2024 |
| 4 | Insider transaction | Sep 17, 2024 | Sep 14, 2024 |
| 4 | Insider transaction | Sep 17, 2024 | Sep 14, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 10-Q | Quarterly report | Aug 5, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2024 | Aug 5, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Jul 30, 2024 | Jul 24, 2024 |
| 8-K |
Current report
Officer or director change
|
Jul 8, 2024 | Jul 4, 2024 |
| 4 | Insider transaction | Jul 8, 2024 | Jul 4, 2024 |
| 4 | Insider transaction | Jun 24, 2024 | Jun 24, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 24, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 14, 2024 |
| S-8 | Employee stock plan registration | Jun 12, 2024 | — |
| 4 | Insider transaction | May 24, 2024 | May 22, 2024 |
| 4 | Insider transaction | May 24, 2024 | May 22, 2024 |
| 4 | Insider transaction | May 24, 2024 | May 22, 2024 |
| 4 | Insider transaction | May 24, 2024 | May 22, 2024 |
| 4 | Insider transaction | May 24, 2024 | May 22, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 24, 2024 | May 20, 2024 |
| 4 | Insider transaction | May 7, 2024 | May 3, 2024 |
| DEFA14A | Additional proxy material | May 7, 2024 | — |
| 10-Q | Quarterly report | May 7, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 7, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 3 | Initial insider ownership | May 3, 2024 | May 1, 2024 |
| ARS | Annual report to shareholders | Apr 9, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 9, 2024 | — |
| DEF 14A | Proxy statement | Apr 9, 2024 | May 22, 2024 |
| 4 | Insider transaction | Mar 18, 2024 | Mar 14, 2024 |
| 4 | Insider transaction | Mar 18, 2024 | Mar 14, 2024 |
| 4 | Insider transaction | Mar 18, 2024 | Mar 14, 2024 |
| S-8 | Employee stock plan registration | Feb 29, 2024 | — |
| 10-K | Annual report | Feb 28, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2024 | Feb 28, 2024 |
| 4 | Insider transaction | Feb 20, 2024 | Feb 14, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 14, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 14, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 14, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 14, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2024 | — |
| 4 | Insider transaction | Feb 6, 2024 | Feb 3, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Jan 16, 2024 | Jan 12, 2024 |
| 4 | Insider transaction | Jan 9, 2024 | Jan 7, 2024 |
| SC 13G | Ownership over 5% (passive) | Jan 5, 2024 | — |
| 8-K |
Current report
Exit or restructuring costs, Regulation FD disclosure
|
Jan 4, 2024 | Jan 3, 2024 |
| 4 | Insider transaction | Dec 18, 2023 | Dec 14, 2023 |
| 4 | Insider transaction | Dec 18, 2023 | Dec 14, 2023 |
| 4 | Insider transaction | Dec 18, 2023 | Dec 14, 2023 |
| 8-K |
Current report
Officer or director change
|
Nov 21, 2023 | Nov 17, 2023 |
| 4 | Insider transaction | Nov 7, 2023 | Nov 4, 2023 |
| 4 | Insider transaction | Nov 7, 2023 | Nov 3, 2023 |
| 4 | Insider transaction | Nov 3, 2023 | Nov 1, 2023 |
| 3 | Initial insider ownership | Nov 3, 2023 | Nov 1, 2023 |
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
- DH (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Framingham, MA
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1861795
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.