Buffett's Annual Letter
https://www.berkshirehathaway.com/letters/2024ltr.pdfFrom Annual Report (150 pages),
https://www.berkshirehathaway.com/2024ar/2024ar.pdfCash & cash-equivalents $334.201 billion (28.96%)
Stock portfolio $271.588 billion (23.54%)
Insurance assets $315.379 billion (27.33%)
Railroad, utilities, energy assets $232.713 billion (20.17%)
TOTAL ASSETS $1,153.881 billion (100%)
Insurance float is $171 billion - that's the premium pool from insurance written & outstanding that will cover future claims over many years.
"Cash" is high, but the above data provide the overall picture of BRK assets.