Graham Holdings Co SEC filings GHC
Graham Holdings Co has 1,006 filings in SEC EDGAR's recent list, going back to Mar 4, 2003. Its latest annual report, Form ARS, was filed on Mar 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 29, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Officer or director change
|
Nov 5, 2026 | Nov 5, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 2, 2026 | — |
| 8-K |
Current report
Results of operations
|
Oct 29, 2026 | Oct 29, 2026 |
| 10-Q | Quarterly report | Oct 29, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Aug 31, 2026 | Aug 28, 2026 |
| N-PX | Filing | Aug 28, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 13, 2026 |
| 13F-HR | Filing | Aug 14, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 13, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2026 | — |
| 8-K |
Current report
Other events
|
Aug 5, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2026 | Jul 30, 2026 |
| 10-Q | Quarterly report | Jul 30, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 4 | Insider transaction | May 28, 2026 | May 26, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 26, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 26, 2026 |
| 13F-HR | Filing | May 15, 2026 | Mar 31, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 8-K |
Current report
Shareholder vote results
|
May 5, 2026 | May 5, 2026 |
| 8-K |
Current report
Other events
|
May 1, 2026 | May 1, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| 8-K |
Current report
Results of operations
|
Apr 30, 2026 | Apr 30, 2026 |
| 10-Q | Quarterly report | Apr 30, 2026 | Mar 31, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| ARS | Annual report to shareholders | Mar 24, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 24, 2026 | — |
| DEF 14A | Proxy statement | Mar 24, 2026 | May 5, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Jul 30, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 25, 2026 | Feb 25, 2026 |
| 10-K | Annual report | Feb 25, 2026 | Dec 31, 2025 |
| 13F-HR | Filing | Feb 13, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 21, 2026 | Jan 16, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 21, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 29, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 24, 2025 | Nov 24, 2025 |
| 13F-HR | Filing | Nov 14, 2025 | Sep 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 13, 2025 | — |
| 8-K |
Current report
Other events
|
Nov 13, 2025 | Nov 13, 2025 |
| 4 | Insider transaction | Nov 13, 2025 | Nov 11, 2025 |
| 4 | Insider transaction | Nov 13, 2025 | Nov 11, 2025 |
| 8-K |
Current report
Other events
|
Nov 12, 2025 | Nov 12, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2025 | Oct 29, 2025 |
| 10-Q | Quarterly report | Oct 29, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Oct 22, 2025 | Oct 20, 2025 |
| 4 | Insider transaction | Oct 9, 2025 | Oct 7, 2025 |
| 4 | Insider transaction | Oct 9, 2025 | Oct 7, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 29, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 29, 2025 |
| N-PX | Filing | Aug 27, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Aug 22, 2025 | Aug 20, 2025 |
| 4 | Insider transaction | Aug 22, 2025 | Aug 20, 2025 |
| 4 | Insider transaction | Aug 21, 2025 | Aug 19, 2025 |
| 13F-HR | Filing | Aug 14, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2025 | Jul 30, 2025 |
| 10-Q | Quarterly report | Jul 30, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| 11-K | Employee savings plan report | Jun 27, 2025 | Dec 31, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2025 | — |
| 13F-HR | Filing | May 15, 2025 | Mar 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
May 7, 2025 | May 6, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2025 | Apr 30, 2025 |
| 10-Q | Quarterly report | Apr 30, 2025 | Mar 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 29, 2025 | — |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| ARS | Annual report to shareholders | Mar 26, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 26, 2025 | — |
| DEF 14A | Proxy statement | Mar 26, 2025 | May 6, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 28, 2025 | — |
| 8-K |
Current report
Results of operations
|
Feb 26, 2025 | Feb 26, 2025 |
| 10-K | Annual report | Feb 26, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 25, 2025 | Feb 25, 2025 |
| 13F-HR | Filing | Feb 14, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 27, 2025 |
| 144 | Notice of proposed sale | Jan 6, 2025 | — |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Nov 14, 2024 | Nov 13, 2024 |
| 13F-HR | Filing | Nov 14, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Nov 8, 2024 | Nov 5, 2024 |
| UPLOAD | Letter from the SEC | Nov 7, 2024 | — |
| 4 | Insider transaction | Nov 5, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 1, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2024 | Oct 30, 2024 |
| 10-Q | Quarterly report | Oct 30, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 17, 2024 | Oct 15, 2024 |
| 4 | Insider transaction | Oct 17, 2024 | Oct 15, 2024 |
| 11-K | Employee savings plan report | Oct 4, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Oct 4, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Oct 4, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Sep 25, 2024 | Sep 23, 2024 |
| 4 | Insider transaction | Sep 25, 2024 | Sep 23, 2024 |
| CORRESP | Letter to the SEC | Sep 23, 2024 | — |
| UPLOAD | Letter from the SEC | Sep 19, 2024 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
Sep 13, 2024 | Sep 12, 2024 |
| 4 | Insider transaction | Sep 13, 2024 | Sep 12, 2024 |
| 3 | Initial insider ownership | Sep 5, 2024 | Sep 3, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 5, 2024 | — |
| SC 13D | Ownership over 5% (active) | Sep 5, 2024 | — |
| N-PX | Filing | Sep 3, 2024 | Jun 30, 2024 |
| SC 13G | Ownership over 5% (passive) | Aug 20, 2024 | — |
| 13F-HR | Filing | Aug 14, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2024 | Jul 31, 2024 |
| 10-Q | Quarterly report | Jul 31, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jul 1, 2024 |
| NT 11-K | Filing | Jun 28, 2024 | Dec 31, 2023 |
| NT 11-K | Filing | Jun 28, 2024 | Dec 31, 2023 |
| NT 11-K | Filing | Jun 28, 2024 | Dec 31, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2024 | — |
| SC 13G | Ownership over 5% (passive) | May 30, 2024 | — |
| 4 | Insider transaction | May 29, 2024 | May 28, 2024 |
| 13F-HR | Filing | May 16, 2024 | Mar 31, 2024 |
| SC 13G | Ownership over 5% (passive) | May 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | May 10, 2024 | — |
| SC 13D | Ownership over 5% (active) | May 10, 2024 | — |
| 8-K |
Current report
Shareholder vote results
|
May 8, 2024 | May 7, 2024 |
| 8-K |
Current report
Results of operations
|
May 1, 2024 | May 1, 2024 |
| 10-Q | Quarterly report | May 1, 2024 | Mar 31, 2024 |
| 4/A | Form 4/a | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| ARS | Annual report to shareholders | Mar 26, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Mar 26, 2024 | — |
| DEF 14A | Proxy statement | Mar 26, 2024 | May 7, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 14, 2024 |
| 144 | Notice of proposed sale | Mar 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 11, 2024 | — |
| 8-K |
Current report
Results of operations
|
Feb 23, 2024 | Feb 23, 2024 |
| 10-K | Annual report | Feb 23, 2024 | Dec 31, 2023 |
| 13F-HR | Filing | Feb 14, 2024 | Dec 31, 2023 |
| 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) | Jan 23, 2024 | — |
| 4 | Insider transaction | Jan 3, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 3, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 3, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 3, 2024 | Jan 2, 2024 |
| S-8 | Employee stock plan registration | Dec 14, 2023 | — |
| 13F-HR | Filing | Nov 14, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 9, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 10-Q | Quarterly report | Nov 1, 2023 | Sep 30, 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-Educational Services (SIC 8200)
- Listed as
- GHC (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Arlington, VA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 104889
- Former names
- WASHINGTON POST CO (until Nov 18, 2013)
Other Services-Educational Services companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.