WASHINGTON POST CO

Historical 13F Holders

CUSIP
939640108
All holders as of
Q3 2021
Type
Equity
Class
CL B
Reported Value, Excluding Options
Total Filings

13D/G Filers

Each filer's latest filing for 939640108 since 12/18/2024, largest first.

Filer % of Class Filed
O'Shaughnessy Laura 13D/A 12.0% 11/2/2026
Event 10/29/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
O'Shaughnessy Timothy J 13D/A 4.4% 2/28/2025
Event 11/1/2024

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2021 Q3 1 841 $501 k
2021 Q2 1 873 $572 k
2019 Q3 1 590 $383 k
2019 Q2 1 590 $383 k
2015 Q2 1 286 $307 k
2015 Q1 1 280 $294 k
2014 Q4 1 280 $242 k
2014 Q2 2 1.13 k $827 k
2014 Q1 1 850 $598 k