13F
The SEC requires all institutional investors that manage more than $100 million to file the form 13F within 45 days of the end of each quarter. [1]
It lays out firms’ equity holdings as of the end of the most recent quarter, as well as the size and market value of their positions. [2]
Ref:-
[1] -
https://www.wsj.com/articles/warren-buffett-spends-big-as-stock-market-sells-off-11652589031?mod=hp_lead_pos6
[2] -
https://www.wsj.com/articles/warren-buffetts-berkshire-hathaway-keeps-spending-spigot-on-through-volatile-markets-11660577978
FHFA
FHFA = the Federal Housing Finance Agency [1]
FHFA oversees mortgage-finance giants [1]
Ref:-
[1] -
https://www.wsj.com/articles/u-s-government-to-backstop-mortgages-above-1-million-mark-for-first-time-11669740331