| SC 13G |
Report
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Aug 20, 2024 |
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| SC 13G |
Report
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May 30, 2024 |
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| SC 13G |
Report
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May 13, 2024 |
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| SC 13G |
Report
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May 10, 2024 |
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| SC 13G/A |
Report
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SCHEDULE 13G/A |
Mar 11, 2024 |
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| SC 13G/A |
Report
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SCHEDULE 13G/A |
Feb 13, 2024 |
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| SC 13G/A |
Report
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SEC SCHEDULE 13G |
Feb 9, 2024 |
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| SC 13G/A |
Report
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Jan 23, 2024 |
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| SC 13G/A |
Report
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SCHEDULE 13G/A |
Sep 11, 2023 |
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| SC 13G/A |
Report
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GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 14, 2023 |
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| SC 13G/A |
Report
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SEC SCHEDULE 13G |
Feb 10, 2023 |
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| SC 13G/A |
Report
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SCHEDULE 13G/A |
Feb 9, 2023 |
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| SC 13G/A |
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Jan 26, 2023 |
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| SC 13G/A |
Report
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Jan 20, 2023 |
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| SC 13G/A |
Report
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GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 14, 2022 |
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| SC 13G/A |
Report
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SCHEDULE 13G/A |
Feb 10, 2022 |
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| SC 13G/A |
Report
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SEC SCHEDULE 13G |
Feb 8, 2022 |
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| SC 13G/A |
Report
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Jan 27, 2022 |
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| SC 13G/A |
Report
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Jan 25, 2022 |
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| SC 13G/A |
Report
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Jul 12, 2021 |
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| SC 13G/A |
Report
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SEC SCHEDULE 13G |
Feb 12, 2021 |
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| SC 13G/A |
Report
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SCHEDULE 13G/A |
Feb 10, 2021 |
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| SC 13G/A |
Report
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|
Jan 29, 2021 |
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| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Jan 11, 2021 |
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| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 14, 2020 |
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| SC 13G/A |
Report
|
SCHEDULE 13G/A |
Feb 12, 2020 |
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| SC 13G/A |
Report
|
SCHEDULE 13G/A |
Feb 12, 2020 |
|
| SC 13G |
Report
|
13G GRAHAM HOLDINGS CO. DECEMBER 2019 |
Feb 11, 2020 |
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| SC 13G/A |
Report
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Feb 5, 2020 |
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| SC 13G/A |
Report
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GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 14, 2019 |
|
| SC 13G |
Report
|
13G GRAHAM HOLDINGS DECEMBER 2018 |
Feb 14, 2019 |
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| SC 13G/A |
Report
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Feb 11, 2019 |
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| SC 13G/A |
Report
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SCHEDULE 13G/A |
Feb 8, 2019 |
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| SC 13G/A |
Report
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Feb 4, 2019 |
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| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 13, 2018 |
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| SC 13G |
Report
|
SCHEDULE 13G |
Feb 9, 2018 |
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| SC 13G/A |
Report
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Feb 9, 2018 |
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| SC 13G/A |
Report
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Jan 25, 2018 |
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| SC 13G/A |
Report
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Apr 7, 2017 |
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| SC 13G |
Report
|
|
Apr 7, 2017 |
|
| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 14, 2017 |
|
| SC 13G/A |
Report
|
SC 13G/A |
Feb 13, 2017 |
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| SC 13G/A |
Report
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Feb 13, 2017 |
|
| SC 13G |
Report
|
SCHRODER INVESTMENT MANAGEMENT NORTH AMERICA INC SC 13G 12-31-2016 (GRAHAM HOLDI |
Feb 10, 2017 |
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| SC 13G/A |
Report
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Jan 24, 2017 |
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| SC 13G |
Report
|
SC 13G |
Feb 16, 2016 |
|
| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 12, 2016 |
|
| SC 13G/A |
Report
|
|
Feb 10, 2016 |
|
| SC 13G/A |
Report
|
SCHRODER INVESTMENT MANAGEMENT NORTH AMERICA INC. SC 13G A 12-31-2015 (GRAHAM HO |
Feb 10, 2016 |
|
| SC 13G |
Report
|
|
Feb 1, 2016 |
|
| SC 13G/A |
Report
|
|
Jan 26, 2016 |
|
| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G AMENDMENT |
Feb 13, 2015 |
|
| SC 13G/A |
Report
|
|
Feb 13, 2015 |
|
| SC 13G |
Report
|
SCHRODER INVESTMENT MANAGEMENT NORTH AMERICA INC SC 13G 12-31-2014 (GRAHAM HOLDI |
Feb 13, 2015 |
|
| SC 13G |
Report
|
|
Feb 10, 2015 |
|
| SC 13G |
Report
|
|
Feb 3, 2015 |
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| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G NO. 8 |
Nov 10, 2014 |
|
| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G |
Aug 8, 2014 |
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| SC 13G/A |
Report
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Feb 14, 2014 |
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| SC 13G/A |
Report
|
GRAHAM HOLDINGS COMPANY - 13G |
Feb 10, 2014 |
|
| SC 13G/A |
Report
|
THE WASHINGTON POST COMPANY - 13G |
Feb 14, 2013 |
|
| SC 13G/A |
Report
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Feb 13, 2013 |
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| SC 13G/A |
Report
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Feb 14, 2012 |
|
| SC 13G/A |
Report
|
THE WASHINGTON POST COMPANY - 13G |
Feb 7, 2012 |
|
| SC 13G/A |
Report
|
WASHINGTON POST CO. |
Jan 27, 2012 |
|
| SC 13G |
Report
|
SC 13G |
Feb 14, 2011 |
|
| SC 13G |
Report
|
WASHINGTON POST CO. |
Feb 11, 2011 |
|
| SC 13G/A |
Report
|
THE WASHINGTON POST COMPANY - 13G |
Feb 7, 2011 |
|
| SC 13G/A |
Report
|
THE WASHINGTON POST COMPANY - 13G |
Apr 7, 2010 |
|
| SC 13G/A |
Report
|
THE WASHINGTON POST COMPANY 13G |
Feb 5, 2010 |
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