| Date Filed | Type | Description |
| 08/14/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 08/02/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 08/02/2023 |
8-K
| Quarterly results |
| 05/31/2023 |
SD
| Form SD - Specialized disclosure report: |
| 05/15/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 05/05/2023 |
8-K
| Quarterly results |
| 05/03/2023 |
10-Q
| Quarterly Report for the period ended March 31, 2023 |
| 05/03/2023 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 03/23/2023 |
8-K
| Other Events, Financial Statements and Exhibits Interactive Data |
| 03/23/2023 |
ARS
| Form ARS - Annual Report to Security Holders: |
| 03/23/2023 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 02/24/2023 |
10-K
| Annual Report for the period ended December 31, 2022 |
| 02/24/2023 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 02/14/2023 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 02/14/2023 |
SC 13G/A
| Southeastern Asset Management reports a 3% stake in Graham Holdings Company |
| 02/10/2023 |
SC 13G/A
| DIMENSIONAL FUND ADVISORS LP reports a 7.7% stake in Graham Holdings Co |
| 02/09/2023 |
SC 13G/A
| VANGUARD GROUP INC reports a 9.6% stake in Graham Holdings Co. Class B |
| 01/26/2023 |
SC 13G/A
| BlackRock Inc. reports a 12.1% stake in GRAHAM HOLDINGS COMPANY |
| 01/20/2023 |
SC 13G/A
| BlackRock Inc. reports a 12.1% stake in GRAHAM HOLDINGS COMPANY |
| 11/14/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 11/02/2022 |
10-Q
| Quarterly Report for the period ended September 30, 2022 |
| 11/02/2022 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 09/15/2022 |
8-K
| Appointed a new director |
| 08/15/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 08/03/2022 |
10-Q
| Quarterly Report for the period ended June 30, 2022 |
| 08/03/2022 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 06/22/2022 |
S-8
| Form S-8 - Securities to be offered to employees in employee benefit plans: |
| 05/27/2022 |
SD
| Form SD - Specialized disclosure report: |
| 05/13/2022 |
13F-HR
| Form 13F-HR - Quarterly report filed by institutional managers, Holdings: |
| 05/06/2022 |
8-K
| Quarterly results |
| 05/04/2022 |
10-Q
| Quarterly Report for the period ended March 31, 2022 |
| 05/04/2022 |
8-K
| Quarterly results |
| 03/24/2022 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 02/25/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
|