SEC EDGAR filings, ownership reports, and insider transactions for Graham Holdings Co.
Recent SEC filings for Graham Holdings Co including 4, SCHEDULE 13G/A, 8-K and more.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 21 Jan 2026 | 16 Jan 2026 | |
| SCHEDULE 13G/A | Open SCHEDULE 13G/A document | View SEC filing for SCHEDULE 13G/A | 21 Jan 2026 | 005-64497 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2026 | 02 Jan 2026 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2026 | 02 Jan 2026 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2026 | 02 Jan 2026 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2026 | 02 Jan 2026 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2026 | 02 Jan 2026 | |
| 4 | Open 4 document | View SEC filing for 4 | 29 Dec 2025 | 29 Dec 2025 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 24 Nov 2025 | 24 Nov 2025 | 001-06714 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Nov 2025 | 30 Sep 2025 | 028-22110 | |
| SCHEDULE 13G/A | Open SCHEDULE 13G/A document | View SEC filing for SCHEDULE 13G/A | 13 Nov 2025 | 005-64497 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 13 Nov 2025 | 13 Nov 2025 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 13 Nov 2025 | 11 Nov 2025 | ||
| 4 | Open 4 document | View SEC filing for 4 | 13 Nov 2025 | 11 Nov 2025 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 12 Nov 2025 | 12 Nov 2025 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 29 Oct 2025 | 29 Oct 2025 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 29 Oct 2025 | 30 Sep 2025 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 22 Oct 2025 | 20 Oct 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | 09 Oct 2025 | 07 Oct 2025 | ||
| 4 | Open 4 document | View SEC filing for 4 | 09 Oct 2025 | 07 Oct 2025 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2025 | 01 Oct 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | 30 Sep 2025 | 29 Sep 2025 | ||
| 4 | Open 4 document | View SEC filing for 4 | 30 Sep 2025 | 29 Sep 2025 | ||
| N-PX | Open N-PX document | View SEC filing for N-PX | 27 Aug 2025 | 30 Jun 2025 | 028-22110 | |
| 4 | Open 4 document | View SEC filing for 4 | 22 Aug 2025 | 20 Aug 2025 | ||
| 4 | Open 4 document | View SEC filing for 4 | 22 Aug 2025 | 20 Aug 2025 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 21 Aug 2025 | 19 Aug 2025 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Aug 2025 | 30 Jun 2025 | 028-22110 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 30 Jul 2025 | 30 Jul 2025 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 30 Jul 2025 | 30 Jun 2025 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2025 | 01 Jul 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2025 | 01 Jul 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2025 | 01 Jul 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2025 | 01 Jul 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2025 | 01 Jul 2025 | |
| 11-K | Open 11-K document | View SEC filing for 11-K | FORM 11-K | 27 Jun 2025 | 31 Dec 2024 | 001-06714 |
| 11-K | Open 11-K document | View SEC filing for 11-K | FORM 11-K | 27 Jun 2025 | 31 Dec 2024 | 001-06714 |
| 11-K | Open 11-K document | View SEC filing for 11-K | FORM 11-K | 27 Jun 2025 | 31 Dec 2024 | 001-06714 |
| SD | Open SD document | View SEC filing for SD | SD | 30 May 2025 | 001-06714 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 May 2025 | 31 Mar 2025 | 028-22110 | |
| SCHEDULE 13G/A | Open SCHEDULE 13G/A document | View SEC filing for SCHEDULE 13G/A | 14 May 2025 | |||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 07 May 2025 | 06 May 2025 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 30 Apr 2025 | 30 Apr 2025 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 30 Apr 2025 | 31 Mar 2025 | 001-06714 |
| SCHEDULE 13G/A | Open SCHEDULE 13G/A document | View SEC filing for SCHEDULE 13G/A | 29 Apr 2025 | 005-64497 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Apr 2025 | 01 Apr 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Apr 2025 | 01 Apr 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Apr 2025 | 01 Apr 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Apr 2025 | 01 Apr 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Apr 2025 | 01 Apr 2025 | |
| ARS | Open ARS document | View SEC filing for ARS | ARS | 26 Mar 2025 | 31 Dec 2024 | 001-06714 |
| DEFA14A | Open DEFA14A document | View SEC filing for DEFA14A | DEFA14A | 26 Mar 2025 | 001-06714 | |
| DEF 14A | Open DEF 14A document | Open XBRL data | View SEC filing for DEF 14A | DEF 14A | 26 Mar 2025 | 06 May 2025 | 001-06714 |
| SCHEDULE 13D/A | Open SCHEDULE 13D/A document | View SEC filing for SCHEDULE 13D/A | 28 Feb 2025 | 005-64497 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 26 Feb 2025 | 26 Feb 2025 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 26 Feb 2025 | 31 Dec 2024 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 25 Feb 2025 | 25 Feb 2025 | 001-06714 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Feb 2025 | 31 Dec 2024 | 028-22110 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 29 Jan 2025 | 27 Jan 2025 | |
| 144 | Open 144 document | View SEC filing for 144 | 06 Jan 2025 | 001-06714 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2025 | 02 Jan 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 14 Nov 2024 | 13 Nov 2024 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Nov 2024 | 30 Sep 2024 | 028-22110 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Nov 2024 | 05 Nov 2024 | |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 07 Nov 2024 | 001-06714 | ||
| 4 | Open 4 document | View SEC filing for 4 | 05 Nov 2024 | 01 Nov 2024 | ||
| 4 | Open 4 document | View SEC filing for 4 | 05 Nov 2024 | 01 Nov 2024 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 30 Oct 2024 | 30 Oct 2024 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 30 Oct 2024 | 30 Sep 2024 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 17 Oct 2024 | 15 Oct 2024 | ||
| 4 | Open 4 document | View SEC filing for 4 | 17 Oct 2024 | 15 Oct 2024 | ||
| 11-K | Open 11-K document | View SEC filing for 11-K | FORM 11-K | 04 Oct 2024 | 31 Dec 2023 | 001-06714 |
| 11-K | Open 11-K document | View SEC filing for 11-K | FORM 11-K | 04 Oct 2024 | 31 Dec 2023 | 001-06714 |
| 11-K | Open 11-K document | View SEC filing for 11-K | FORM 11-K | 04 Oct 2024 | 31 Dec 2023 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2024 | 01 Oct 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2024 | 01 Oct 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2024 | 01 Oct 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Oct 2024 | 01 Oct 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | 25 Sep 2024 | 23 Sep 2024 | ||
| 4 | Open 4 document | View SEC filing for 4 | 25 Sep 2024 | 23 Sep 2024 | ||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 23 Sep 2024 | |||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 19 Sep 2024 | 001-06714 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 13 Sep 2024 | 12 Sep 2024 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 13 Sep 2024 | 12 Sep 2024 | |
| 3 | Open 3 document | View SEC filing for 3 | 05 Sep 2024 | 03 Sep 2024 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 23 | 05 Sep 2024 | 005-64497 | |
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | 05 Sep 2024 | 005-64497 | ||
| N-PX | Open N-PX document | View SEC filing for N-PX | 03 Sep 2024 | 30 Jun 2024 | 028-22110 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 20 Aug 2024 | |||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Aug 2024 | 30 Jun 2024 | 028-22110 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 31 Jul 2024 | 31 Jul 2024 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 31 Jul 2024 | 30 Jun 2024 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2024 | 01 Jul 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2024 | 01 Jul 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2024 | 01 Jul 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jul 2024 | 01 Jul 2024 | |
| NT 11-K | Open NT 11-K document | View SEC filing for NT 11-K | NT 11-K | 28 Jun 2024 | 31 Dec 2023 | 001-06714 |
| NT 11-K | Open NT 11-K document | View SEC filing for NT 11-K | NT 11-K | 28 Jun 2024 | 31 Dec 2023 | 001-06714 |
| NT 11-K | Open NT 11-K document | View SEC filing for NT 11-K | NT 11-K | 28 Jun 2024 | 31 Dec 2023 | 001-06714 |
| SD | Open SD document | View SEC filing for SD | SD | 31 May 2024 | 001-06714 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 30 May 2024 | 005-64497 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 29 May 2024 | 28 May 2024 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 16 May 2024 | 31 Mar 2024 | 028-22110 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 13 May 2024 | 005-64497 | ||
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 10 May 2024 | 005-64497 | ||
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | 10 May 2024 | 005-64497 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 08 May 2024 | 07 May 2024 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 01 May 2024 | 01 May 2024 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 01 May 2024 | 31 Mar 2024 | 001-06714 |
| 4/A | Open 4/A document | View SEC filing for 4/A | FORM 4/A | 02 Apr 2024 | 01 Apr 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Apr 2024 | 01 Apr 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Apr 2024 | 01 Apr 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Apr 2024 | 01 Apr 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Apr 2024 | 01 Apr 2024 | |
| ARS | Open ARS document | View SEC filing for ARS | ARS | 26 Mar 2024 | 31 Dec 2023 | 001-06714 |
| DEFA14A | Open DEFA14A document | View SEC filing for DEFA14A | DEFA14A | 26 Mar 2024 | 001-06714 | |
| DEF 14A | Open DEF 14A document | Open XBRL data | View SEC filing for DEF 14A | DEF 14A | 26 Mar 2024 | 07 May 2024 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 15 Mar 2024 | 14 Mar 2024 | |
| 144 | Open 144 document | View SEC filing for 144 | 14 Mar 2024 | 001-06714 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 11 Mar 2024 | 005-64497 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 23 Feb 2024 | 23 Feb 2024 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 23 Feb 2024 | 31 Dec 2023 | 001-06714 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Feb 2024 | 31 Dec 2023 | 028-22110 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 13 Feb 2024 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SEC SCHEDULE 13G | 09 Feb 2024 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 23 Jan 2024 | 005-64497 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Jan 2024 | 02 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Jan 2024 | 02 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Jan 2024 | 02 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Jan 2024 | 02 Jan 2024 | |
| S-8 | Open S-8 document | View SEC filing for S-8 | REGISTRATION STATEMENT | 14 Dec 2023 | 333-276044 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Nov 2023 | 30 Sep 2023 | 028-22110 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 09 Nov 2023 | 09 Nov 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 09 Nov 2023 | 08 Nov 2023 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 01 Nov 2023 | 30 Sep 2023 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 01 Nov 2023 | 01 Nov 2023 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Oct 2023 | 02 Oct 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Oct 2023 | 02 Oct 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Oct 2023 | 02 Oct 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Oct 2023 | 02 Oct 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Oct 2023 | 02 Oct 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 12 Sep 2023 | 08 Sep 2023 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 11 Sep 2023 | 005-64497 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Aug 2023 | 30 Jun 2023 | 028-22110 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 02 Aug 2023 | 30 Jun 2023 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 02 Aug 2023 | 02 Aug 2023 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 07 Jul 2023 | 06 Jul 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2023 | 03 Jul 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2023 | 03 Jul 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2023 | 03 Jul 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2023 | 03 Jul 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2023 | 03 Jul 2023 | |
| SD | Open SD document | View SEC filing for SD | SD | 31 May 2023 | 001-06714 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 May 2023 | 31 Mar 2023 | 028-22110 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 09 May 2023 | 09 May 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 May 2023 | 04 May 2023 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 03 May 2023 | 31 Mar 2023 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 03 May 2023 | 03 May 2023 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Apr 2023 | 03 Apr 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Apr 2023 | 03 Apr 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Apr 2023 | 03 Apr 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Apr 2023 | 03 Apr 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Apr 2023 | 03 Apr 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 23 Mar 2023 | 23 Mar 2023 | 001-06714 |
| ARS | Open ARS document | View SEC filing for ARS | ARS | 23 Mar 2023 | 31 Dec 2022 | 001-06714 |
| DEF 14A | Open DEF 14A document | Open XBRL data | View SEC filing for DEF 14A | DEF 14A | 23 Mar 2023 | 001-06714 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Mar 2023 | 07 Mar 2023 | |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 24 Feb 2023 | 31 Dec 2022 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 24 Feb 2023 | 24 Feb 2023 | 001-06714 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Feb 2023 | 31 Dec 2022 | 028-22110 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 14 Feb 2023 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SEC SCHEDULE 13G | 10 Feb 2023 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 09 Feb 2023 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 26 Jan 2023 | 005-64497 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 20 Jan 2023 | 005-64497 | ||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 20 Jan 2023 | |||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 09 Jan 2023 | 09 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 04 Jan 2023 | |||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 12 Dec 2022 | |||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 Nov 2022 | 30 Sep 2022 | 028-22110 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 02 Nov 2022 | 30 Sep 2022 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 02 Nov 2022 | 02 Nov 2022 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Oct 2022 | 03 Oct 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Oct 2022 | 03 Oct 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Oct 2022 | 03 Oct 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Oct 2022 | 03 Oct 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Oct 2022 | 03 Oct 2022 | |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 03 Oct 2022 | 15 Sep 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 16 Sep 2022 | 16 Sep 2022 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 15 Sep 2022 | 15 Sep 2022 | 001-06714 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 Aug 2022 | 30 Jun 2022 | 028-22110 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 03 Aug 2022 | 30 Jun 2022 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 03 Aug 2022 | 03 Aug 2022 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jul 2022 | 01 Jul 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jul 2022 | 01 Jul 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jul 2022 | 01 Jul 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jul 2022 | 01 Jul 2022 | |
| S-8 | Open S-8 document | View SEC filing for S-8 | REGISTRATION STATEMENT | 22 Jun 2022 | 333-265764 | |
| SD | Open SD document | View SEC filing for SD | FORM SD | 27 May 2022 | 001-06714 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 May 2022 | 31 Mar 2022 | 028-22110 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 06 May 2022 | 05 May 2022 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 04 May 2022 | 31 Mar 2022 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 May 2022 | 04 May 2022 | 001-06714 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 24 Mar 2022 | 05 May 2022 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 08 Mar 2022 | 07 Mar 2022 | ||
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 25 Feb 2022 | 31 Dec 2021 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 25 Feb 2022 | 25 Feb 2022 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 14 Feb 2022 | 005-64497 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Feb 2022 | 31 Dec 2021 | 028-22110 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 11 Feb 2022 | 30 Dec 2021 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 10 Feb 2022 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SEC SCHEDULE 13G | 08 Feb 2022 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 27 Jan 2022 | 005-64497 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 25 Jan 2022 | 005-64497 | ||
| 4/A | Open 4/A document | View SEC filing for 4/A | FORM 4/A | 24 Jan 2022 | 19 Jan 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 21 Jan 2022 | 19 Jan 2022 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 23 Dec 2021 | 21 Dec 2021 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 23 Dec 2021 | 22 Dec 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Dec 2021 | 01 Dec 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 15 Nov 2021 | 11 Nov 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Nov 2021 | 04 Nov 2021 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | 10-Q | 03 Nov 2021 | 30 Sep 2021 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | 8-K | 03 Nov 2021 | 03 Nov 2021 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 04 Aug 2021 | 30 Jun 2021 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 Aug 2021 | 04 Aug 2021 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 12 Jul 2021 | 005-64497 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 14 Jun 2021 | 14 Jun 2021 | 001-06714 |
| SD | Open SD document | View SEC filing for SD | FORM SD | 27 May 2021 | 001-06714 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 10 May 2021 | 06 May 2021 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 05 May 2021 | 31 Mar 2021 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 May 2021 | 05 May 2021 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 Apr 2021 | 03 Apr 2021 | 001-06714 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 25 Mar 2021 | 06 May 2021 | 001-06714 |
| 4/A | Open 4/A document | View SEC filing for 4/A | 08 Mar 2021 | 10 Sep 2020 | ||
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 01 Mar 2021 | 23 Feb 2021 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 25 Feb 2021 | 23 Feb 2021 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 24 Feb 2021 | 31 Dec 2020 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 24 Feb 2021 | 24 Feb 2021 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SEC SCHEDULE 13G | 12 Feb 2021 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 10 Feb 2021 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 29 Jan 2021 | 005-64497 | ||
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 19 Jan 2021 | 14 Jan 2021 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 11 Jan 2021 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jan 2021 | 04 Jan 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2021 | 04 Jan 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2021 | 04 Jan 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2021 | 04 Jan 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jan 2021 | 04 Jan 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 23 Dec 2020 | 22 Dec 2020 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | 8-K | 16 Dec 2020 | 10 Dec 2020 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 14 Dec 2020 | 10 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 09 Dec 2020 | 07 Dec 2020 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 08 Dec 2020 | 08 Dec 2020 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 07 Dec 2020 | 03 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Dec 2020 | 01 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | 25 Nov 2020 | 24 Nov 2020 | ||
| 4 | Open 4 document | View SEC filing for 4 | 24 Nov 2020 | 20 Nov 2020 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 13 Nov 2020 | 11 Nov 2020 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 10 Nov 2020 | 10 Nov 2020 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 Nov 2020 | 01 Nov 2020 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 04 Nov 2020 | 30 Sep 2020 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 Nov 2020 | 04 Nov 2020 | 001-06714 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 13 Oct 2020 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 06 Oct 2020 | |||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | 8-K | 02 Oct 2020 | 01 Oct 2020 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 14 Sep 2020 | 10 Sep 2020 | ||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 11 Sep 2020 | |||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 10 Sep 2020 | 10 Sep 2020 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 27 Aug 2020 | 27 Aug 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 26 Aug 2020 | 25 Aug 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | 05 Aug 2020 | 03 Aug 2020 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 05 Aug 2020 | 30 Jun 2020 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 Aug 2020 | 05 Aug 2020 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2020 | 27 Feb 2020 | |
| SD | Open SD document | View SEC filing for SD | FORM SD | 29 May 2020 | 001-06714 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 08 May 2020 | 07 May 2020 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | 10-Q | 05 May 2020 | 31 Mar 2020 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 May 2020 | 05 May 2020 | 001-06714 |
| DEFA14A | Open DEFA14A document | View SEC filing for DEFA14A | DEFA14A | 17 Apr 2020 | 001-06714 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 06 Apr 2020 | 01 Apr 2020 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 31 Mar 2020 | 31 Mar 2020 | 001-06714 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 26 Mar 2020 | 07 May 2020 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 24 Mar 2020 | 23 Mar 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 18 Mar 2020 | 18 Mar 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Mar 2020 | 03 Mar 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Mar 2020 | 27 Feb 2020 | |
| SEC STAFF LETTER | Open SEC STAFF LETTER document | View SEC filing for SEC STAFF LETTER | 28 Feb 2020 | |||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 28 Feb 2020 | 27 Feb 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Feb 2020 | 27 Feb 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Feb 2020 | 27 Feb 2020 | |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | 10-K | 26 Feb 2020 | 31 Dec 2019 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | 8-K | 26 Feb 2020 | 26 Feb 2020 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 14 Feb 2020 | 005-64497 | |
| 5 | Open 5 document | View SEC filing for 5 | 14 Feb 2020 | 31 Dec 2019 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 12 Feb 2020 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 12 Feb 2020 | 005-64497 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 13G GRAHAM HOLDINGS CO. DECEMBER 2019 | 11 Feb 2020 | 005-64497 | |
| SEC STAFF LETTER | Open SEC STAFF LETTER document | View SEC filing for SEC STAFF LETTER | 06 Feb 2020 | |||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 05 Feb 2020 | 005-64497 | ||
| 4 | Open 4 document | View SEC filing for 4 | 18 Dec 2019 | 16 Dec 2019 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 22 | 18 Dec 2019 | 005-64497 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 30 Oct 2019 | 30 Sep 2019 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 30 Oct 2019 | 30 Oct 2019 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | 10-Q | 31 Jul 2019 | 30 Jun 2019 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 31 Jul 2019 | 31 Jul 2019 | 001-06714 |
| SD | Open SD document | View SEC filing for SD | FORM SD | 30 May 2019 | 001-06714 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 02 May 2019 | 02 May 2019 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 01 May 2019 | 31 Mar 2019 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 May 2019 | 01 May 2019 | 001-06714 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 21 Mar 2019 | 02 May 2019 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 25 Feb 2019 | 31 Dec 2018 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 25 Feb 2019 | 25 Feb 2019 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 14 Feb 2019 | 005-64497 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 13G GRAHAM HOLDINGS DECEMBER 2018 | 14 Feb 2019 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 11 Feb 2019 | 005-64497 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHEDULE 13G/A | 08 Feb 2019 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 04 Feb 2019 | 005-64497 | ||
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | 04 Jan 2019 | 22 Feb 2018 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2019 | 02 Jan 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | 28 Dec 2018 | 26 Dec 2018 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 31 Oct 2018 | 30 Sep 2018 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 31 Oct 2018 | 31 Oct 2018 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Oct 2018 | 09 Oct 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 25 Sep 2018 | 21 Sep 2018 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | 07 Aug 2018 | 02 Aug 2018 | ||
| 4 | Open 4 document | View SEC filing for 4 | 06 Aug 2018 | 02 Aug 2018 | ||
| 4 | Open 4 document | View SEC filing for 4 | 06 Aug 2018 | 02 Aug 2018 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 01 Aug 2018 | 30 Jun 2018 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Aug 2018 | 01 Aug 2018 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2018 | 05 Jul 2018 | |
| SD | Open SD document | View SEC filing for SD | FORM SD | 31 May 2018 | 001-06714 | |
| CT ORDER | Open CT ORDER document | View SEC filing for CT ORDER | 31 May 2018 | 001-06714 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 30 May 2018 | 24 May 2018 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | 24 May 2018 | 24 May 2018 | 001-06714 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 21 May 2018 | 21 May 2018 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 21 May 2018 | 21 May 2018 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 May 2018 | 11 May 2018 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 May 2018 | 03 May 2018 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 02 May 2018 | 31 Mar 2018 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 02 May 2018 | 02 May 2018 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 09 Apr 2018 | 06 Apr 2018 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | 28 Mar 2018 | 22 Mar 2018 | 001-06714 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 22 Mar 2018 | 03 May 2018 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 19 Mar 2018 | 15 Mar 2018 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 21 | 19 Mar 2018 | 005-64497 | |
| S-3ASR | Open S-3ASR document | View SEC filing for S-3ASR | 12 Mar 2018 | 333-223595 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Mar 2018 | 05 Mar 2018 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 23 Feb 2018 | 23 Feb 2018 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 23 Feb 2018 | 31 Dec 2017 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 13 Feb 2018 | 005-64497 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SCHEDULE 13G | 09 Feb 2018 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 09 Feb 2018 | 005-64497 | ||
| 4 | Open 4 document | View SEC filing for 4 | 26 Jan 2018 | 20 Dec 2017 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 25 Jan 2018 | 005-64497 | ||
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 22 Jan 2018 | 18 Jan 2018 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 19 Jan 2018 | 18 Jan 2018 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 18 Dec 2017 | 14 Dec 2017 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 09 Nov 2017 | 09 Nov 2017 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 01 Nov 2017 | 30 Sep 2017 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Nov 2017 | 01 Nov 2017 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 31 Oct 2017 | 27 Oct 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 31 Oct 2017 | 27 Oct 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 02 Oct 2017 | 28 Sep 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 21 Aug 2017 | 24 Jul 2017 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 02 Aug 2017 | 30 Jun 2017 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 02 Aug 2017 | 02 Aug 2017 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 01 Aug 2017 | 28 Jul 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 26 Jul 2017 | 24 Jul 2017 | ||
| SD | Open SD document | View SEC filing for SD | FORM SD | 31 May 2017 | 001-06714 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 09 May 2017 | 04 May 2017 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 May 2017 | 04 May 2017 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 03 May 2017 | 31 Mar 2017 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 May 2017 | 03 May 2017 | 001-06714 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 27 Apr 2017 | |||
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 27 Apr 2017 | 27 Apr 2017 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 27 Apr 2017 | 27 Apr 2017 | 001-06714 |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 19 Apr 2017 | |||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 07 Apr 2017 | 005-64497 | ||
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 07 Apr 2017 | 005-64497 | ||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 06 Apr 2017 | |||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 Apr 2017 | 03 Apr 2017 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Apr 2017 | 01 Apr 2017 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 23 Mar 2017 | 04 May 2017 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 08 Mar 2017 | 16 Feb 2017 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 24 Feb 2017 | 31 Dec 2016 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Feb 2017 | 24 Feb 2017 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 14 Feb 2017 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 13 Feb 2017 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 13 Feb 2017 | 005-64497 | ||
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SCHRODER INVESTMENT MANAGEMENT NORTH AMERICA INC SC 13G 12-31-2016 (GRAHAM HOLDI | 10 Feb 2017 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 24 Jan 2017 | 005-64497 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 13 Jan 2017 | 11 Jan 2017 | 001-06714 |
| 8-K/A | Open 8-K/A document | View SEC filing for 8-K/A | FORM 8-K/A | 13 Jan 2017 | 12 Jan 2017 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Jan 2017 | 12 Jan 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | 05 Jan 2017 | 03 Jan 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 05 Jan 2017 | 03 Jan 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 05 Jan 2017 | 03 Jan 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 05 Jan 2017 | 03 Jan 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2017 | 03 Jan 2017 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 22 Dec 2016 | 22 Dec 2016 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 23 Nov 2016 | 21 Nov 2016 | ||
| 4 | Open 4 document | View SEC filing for 4 | 23 Nov 2016 | 21 Nov 2016 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 02 Nov 2016 | 30 Sep 2016 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 02 Nov 2016 | 02 Nov 2016 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 03 Aug 2016 | 30 Jun 2016 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 Aug 2016 | 03 Aug 2016 | 001-06714 |
| SD | Open SD document | View SEC filing for SD | FORM SD | 31 May 2016 | 001-06714 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 16 May 2016 | 12 May 2016 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 10 May 2016 | 05 May 2016 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 04 May 2016 | 31 Mar 2016 | 001-06714 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 May 2016 | 04 May 2016 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 24 Mar 2016 | 23 Mar 2016 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 24 Mar 2016 | 12 May 2016 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 26 Feb 2016 | 31 Dec 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 26 Feb 2016 | 26 Feb 2016 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 25 Feb 2016 | 18 Feb 2016 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | FORM 4/A | 22 Feb 2016 | 30 Jun 2012 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SC 13G | 16 Feb 2016 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 12 Feb 2016 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 10 Feb 2016 | 005-64497 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SCHRODER INVESTMENT MANAGEMENT NORTH AMERICA INC. SC 13G A 12-31-2015 (GRAHAM HO | 10 Feb 2016 | 005-64497 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 01 Feb 2016 | |||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 26 Jan 2016 | 005-64497 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 21 Dec 2015 | 17 Dec 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 Dec 2015 | 14 Dec 2015 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 16 Nov 2015 | 12 Nov 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K PRESS RELEASE | 13 Nov 2015 | 13 Nov 2015 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 13 Nov 2015 | 12 Nov 2015 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 20 | 13 Nov 2015 | 005-64497 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K PRESS RELEASES | 12 Nov 2015 | 11 Nov 2015 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 05 Nov 2015 | 30 Sep 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 Nov 2015 | 04 Nov 2015 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 02 Nov 2015 | 21 Oct 2015 | 001-32300 |
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | SCHEDULE 13D | 02 Nov 2015 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 28 Oct 2015 | 26 Oct 2015 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 28 Oct 2015 | 26 Oct 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | 8-K | 04 Sep 2015 | 03 Sep 2015 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 17 Aug 2015 | 13 Aug 2015 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 05 Aug 2015 | 30 Jun 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 Aug 2015 | 05 Aug 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | 8-K | 23 Jul 2015 | 23 Jul 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 08 Jul 2015 | 01 Jul 2015 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 19 | 02 Jul 2015 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 01 Jul 2015 | 29 Jun 2015 | 001-36863 |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 01 Jul 2015 | 29 Jun 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 17 Jun 2015 | 11 Jun 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 17 Jun 2015 | 17 Jun 2015 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 18 | 12 Jun 2015 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 11 Jun 2015 | 09 Jun 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Jun 2015 | 04 Jun 2015 | |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 05 Jun 2015 | 05 Jun 2015 | 001-36863 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jun 2015 | 02 Jun 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 04 Jun 2015 | 04 Jun 2015 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jun 2015 | 29 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 01 Jun 2015 | 28 May 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Jun 2015 | 01 Jun 2015 | 001-06714 |
| SD | Open SD document | View SEC filing for SD | SD | 29 May 2015 | 001-06714 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 May 2015 | 14 May 2015 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 11 May 2015 | 31 Mar 2015 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 May 2015 | 01 May 2015 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 03 Apr 2015 | 03 Apr 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 27 Mar 2015 | 25 Mar 2015 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 26 Mar 2015 | 26 Mar 2014 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Mar 2015 | 03 Mar 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Mar 2015 | 04 Mar 2015 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 17 | 04 Mar 2015 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Mar 2015 | 26 Feb 2015 | |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 27 Feb 2015 | 31 Dec 2014 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 25 Feb 2015 | 23 Feb 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 20 Feb 2015 | 20 Feb 2015 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G AMENDMENT | 13 Feb 2015 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 13 Feb 2015 | 005-64497 | ||
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SCHRODER INVESTMENT MANAGEMENT NORTH AMERICA INC SC 13G 12-31-2014 (GRAHAM HOLDI | 13 Feb 2015 | 005-64497 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 13 Feb 2015 | 12 Feb 2015 | 001-06714 |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 10 Feb 2015 | 005-64497 | ||
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 03 Feb 2015 | 005-64497 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Jan 2015 | 28 Jan 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2015 | 01 Jan 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2015 | 01 Jan 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2015 | 01 Jan 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2015 | 01 Jan 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Jan 2015 | 30 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 29 Dec 2014 | 23 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 22 Dec 2014 | 19 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 19 Dec 2014 | 17 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 Dec 2014 | 17 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 16 Dec 2014 | 12 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 15 Dec 2014 | 11 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Dec 2014 | 09 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Dec 2014 | 09 Dec 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 14 Nov 2014 | 12 Nov 2014 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G NO. 8 | 10 Nov 2014 | 005-64497 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 05 Nov 2014 | 30 Sep 2014 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Nov 2014 | 03 Nov 2014 | |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 04 Nov 2014 | 03 Nov 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 31 Oct 2014 | 31 Oct 2014 | 001-06714 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 21 Oct 2014 | |||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 15 Oct 2014 | 10 Oct 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 01 Oct 2014 | 01 Oct 2014 | 001-06714 |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 19 Sep 2014 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 05 Sep 2014 | |||
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 25 Aug 2014 | 21 Aug 2014 | |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 21 Aug 2014 | |||
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 08 Aug 2014 | 05 Aug 2014 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G | 08 Aug 2014 | 005-64497 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 06 Aug 2014 | 30 Jun 2014 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Aug 2014 | 01 Aug 2014 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 16 Jul 2014 | 16 Jul 2014 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 10 Jul 2014 | 09 Jul 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Jul 2014 | 30 Jun 2014 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | 02 Jul 2014 | 30 Jun 2014 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 16 | 02 Jul 2014 | 005-64497 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 11 TO SCHEDULE 13D | 01 Jul 2014 | 005-64497 | |
| SD | Open SD document | View SEC filing for SD | SD | 02 Jun 2014 | 001-06714 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 20 May 2014 | 16 May 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 13 May 2014 | 09 May 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 13 May 2014 | 08 May 2014 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 07 May 2014 | 31 Mar 2014 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 02 May 2014 | 02 May 2014 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 14 Apr 2014 | 005-64497 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 14 Apr 2014 | 10 Apr 2014 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 10 Apr 2014 | 01 Apr 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Apr 2014 | 21 Mar 2014 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 26 Mar 2014 | 26 Mar 2014 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 3 | 19 Mar 2014 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 13 Mar 2014 | 12 Mar 2014 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 12 Mar 2014 | 005-64497 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 2 | 12 Mar 2014 | ||
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 28 Feb 2014 | 31 Dec 2013 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 21 Feb 2014 | 21 Feb 2014 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 14 Feb 2014 | 005-64497 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/AMENDMENT #8 | 12 Feb 2014 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | GRAHAM HOLDINGS COMPANY - 13G | 10 Feb 2014 | 005-64497 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 Dec 2013 | 27 Nov 2013 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 29 Nov 2013 | 29 Nov 2013 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 18 Nov 2013 | 15 Nov 2013 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 06 Nov 2013 | 30 Sep 2013 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Nov 2013 | 01 Nov 2013 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 11 Oct 2013 | 10 Oct 2013 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Oct 2013 | 04 Oct 2013 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Oct 2013 | 01 Oct 2013 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Oct 2013 | 01 Oct 2013 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 07 Aug 2013 | 30 Jun 2013 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | CURRENT REPORT | 05 Aug 2013 | 05 Aug 2013 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 02 Aug 2013 | 02 Aug 2013 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 15 | 26 Jul 2013 | 005-64497 | |
| S-8 | Open S-8 document | View SEC filing for S-8 | REGISTRATION STATEMENT | 24 Jun 2013 | 333-189559 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | 16 May 2013 | 09 May 2013 | 001-06714 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 07 May 2013 | 31 Mar 2013 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 May 2013 | 03 May 2013 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 1 | 30 Apr 2013 | ||
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | 27 Mar 2013 | 27 Mar 2013 | 001-06714 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 08 Mar 2013 | 07 Mar 2013 | |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 28 Feb 2013 | 31 Dec 2012 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 22 Feb 2013 | 22 Feb 2013 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | THE WASHINGTON POST COMPANY - 13G | 14 Feb 2013 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 13 Feb 2013 | 005-64497 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | 08 Jan 2013 | 08 Jan 2013 | 001-06714 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 14 Dec 2012 | 10 Dec 2012 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 14 Dec 2012 | 10 Dec 2012 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Dec 2012 | 10 Dec 2012 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Dec 2012 | 10 Dec 2012 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Dec 2012 | 10 Dec 2012 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Dec 2012 | 10 Dec 2012 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Dec 2012 | 10 Dec 2012 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 11 Dec 2012 | 10 Dec 2012 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | 10 Dec 2012 | 07 Dec 2012 | 001-06714 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 07 Nov 2012 | 30 Sep 2012 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 02 Nov 2012 | 02 Nov 2012 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 Oct 2012 | 11 Oct 2012 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Oct 2012 | 01 Oct 2012 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 28 Sep 2012 | 27 Sep 2012 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 14 Sep 2012 | 13 Sep 2012 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | 13 Sep 2012 | 13 Sep 2012 | 001-06714 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 07 Aug 2012 | 30 Jun 2012 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 Aug 2012 | 30 Jun 2012 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 08 Jun 2012 | 07 Jun 2012 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 11 May 2012 | 10 May 2012 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 09 May 2012 | 31 Mar 2012 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 04 May 2012 | 31 Mar 2012 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 May 2012 | 01 May 2012 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEFINITIVE PROXY STATEMENT | 23 Mar 2012 | 10 May 2012 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 29 Feb 2012 | 31 Dec 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Feb 2012 | 31 Dec 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 23 Feb 2012 | 23 Feb 2012 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 14 Feb 2012 | 005-64497 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | THE WASHINGTON POST COMPANY - 13G | 07 Feb 2012 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | WASHINGTON POST CO. | 27 Jan 2012 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2012 | 30 Dec 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Dec 2011 | 23 Dec 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 22 Dec 2011 | 22 Dec 2011 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Dec 2011 | 16 Dec 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Nov 2011 | 15 Nov 2011 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 09 Nov 2011 | 02 Oct 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 04 Nov 2011 | 04 Nov 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Oct 2011 | 27 Oct 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 08 Sep 2011 | 08 Sep 2011 | 001-06714 |
| 8-K/A | Open 8-K/A document | View SEC filing for 8-K/A | FORM 8-K AMENDMENT | 30 Aug 2011 | 16 May 2011 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 11 Aug 2011 | 03 Jul 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 Aug 2011 | 05 Aug 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 22 Jul 2011 | 22 Jul 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 19 Jul 2011 | 19 Jul 2011 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Jul 2011 | 06 Jul 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2011 | 01 Jul 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 01 Jul 2011 | 29 Jun 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 20 Jun 2011 | 17 Jun 2011 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 14 | 17 Jun 2011 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 16 Jun 2011 | 14 Jun 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 14 Jun 2011 | 10 Jun 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 13 Jun 2011 | 10 Jun 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 10 Jun 2011 | 08 Jun 2011 | |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 | 09 Jun 2011 | 09 Jun 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 09 Jun 2011 | 09 Jun 2011 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 08 Jun 2011 | 06 Jun 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 07 Jun 2011 | 07 Jun 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 16 May 2011 | 12 May 2011 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 11 May 2011 | 03 Apr 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 06 May 2011 | 06 May 2011 | 001-06714 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 04 May 2011 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 21 Apr 2011 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 20 Apr 2011 | |||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 12 Apr 2011 | 08 Apr 2011 | |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 06 Apr 2011 | |||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 28 Mar 2011 | 24 Mar 2011 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEFINITIVE PROXY STATEMENT | 23 Mar 2011 | 12 May 2011 | 001-06714 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10K | 02 Mar 2011 | 02 Jan 2011 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 23 Feb 2011 | 23 Feb 2011 | 001-06714 |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SC 13G | 14 Feb 2011 | 005-64497 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | WASHINGTON POST CO. | 11 Feb 2011 | 005-64497 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | THE WASHINGTON POST COMPANY - 13G | 07 Feb 2011 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 28 Jan 2011 | 28 Jan 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 20 Jan 2011 | 20 Jan 2011 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jan 2011 | 05 Jan 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jan 2011 | 05 Jan 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jan 2011 | 05 Jan 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jan 2011 | 05 Jan 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jan 2011 | 05 Jan 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jan 2011 | 05 Jan 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jan 2011 | 30 Sep 2010 | |
| 4 | Open 4 document | View SEC filing for 4 | RLO SALE OF WPO SHARES 12-31-2010 | 03 Jan 2011 | 30 Dec 2010 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 17 Dec 2010 | 05 Nov 2010 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Dec 2010 | 07 Dec 2010 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Dec 2010 | 07 Dec 2010 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 12 Nov 2010 | 11 Nov 2010 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 10 Nov 2010 | 03 Oct 2010 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 Nov 2010 | 05 Nov 2010 | 001-06714 |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 26 Oct 2010 | 05 Jan 2009 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 06 Oct 2010 | 30 Sep 2010 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 01 Oct 2010 | 23 Sep 2010 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 30 Sep 2010 | 27 Sep 2010 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 24 Sep 2010 | 22 Sep 2010 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Sep 2010 | 23 Sep 2010 | 001-06714 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | AMENDMENT NO. 13 | 27 Aug 2010 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 27 Aug 2010 | 25 Aug 2010 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 23 Aug 2010 | 23 Aug 2010 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 16 Aug 2010 | 16 Aug 2010 | 001-06714 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 11 Aug 2010 | 04 Jul 2010 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 06 Aug 2010 | 06 Aug 2010 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 01 Jul 2010 | 29 Jun 2010 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 17 Jun 2010 | 15 Jun 2010 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 10 Jun 2010 | 10 Jun 2010 | 001-06714 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 10 Jun 2010 | 10 Jun 2010 | |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 10 Jun 2010 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 03 Jun 2010 | |||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 19 May 2010 | |||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 18 May 2010 | 13 May 2010 | 001-06714 |
| 10-Q | Open 10-Q document | View SEC filing for 10-Q | FORM 10-Q | 11 May 2010 | 04 Apr 2010 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 May 2010 | 07 May 2010 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 May 2010 | 05 May 2010 | 001-06714 |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 04 May 2010 | |||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 20 Apr 2010 | |||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 14 Apr 2010 | 12 Apr 2010 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | THE WASHINGTON POST COMPANY - 13G | 07 Apr 2010 | 005-64497 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | NOTICE AND PROXY STATEMENT | 24 Mar 2010 | 13 May 2010 | 001-06714 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Mar 2010 | 05 Feb 2010 | |
| 10-K | Open 10-K document | View SEC filing for 10-K | FORM 10-K | 02 Mar 2010 | 03 Jan 2010 | 001-06714 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Feb 2010 | 24 Feb 2010 | 001-06714 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | THE WASHINGTON POST COMPANY 13G | 05 Feb 2010 | 005-64497 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 02 Feb 2010 | 29 Jan 2010 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 21 Jan 2010 | 21 Jan 2010 | 001-06714 |
Graham Holdings Co files with the SEC under CIK 0000104889. This page aggregates EDGAR filings and related ownership activity.
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