SEC CIK 315090

BUFFETT WARREN E

Reported ownership across 5 companies, sourced from SEC Form 4 filings and updated daily.

Current Positions

CompanyShares OwnedAs Of
SIRIview stock →124,807,1172025-08-04
DVAview stock →28,697,2292026-07-31
LLYVA/Kview stock →10,587,1432026-01-16
VRSNview stock →8,989,8802025-07-30
BRK.Aview stock →1,1622026-07-14

Position History — BRK.A

Reported shares owned immediately after each Form 4 transaction, over time.

04,119,8228,239,64312,359,4652025-042025-062025-062025-112026-052026-072026-07

Recent Filings — BRK.A

DateActivitySharesPriceOwned After
2026-07-14Conversion (derivative)8,000—188,290
2026-07-14Gift1,000,000$0.001,162
2026-07-14Gift1,000,000$0.001,001,162
2026-07-14Gift1,000,000$0.002,001,162
2026-07-14Gift9,000,000$0.003,001,162
2026-07-14Conversion12,000,000$0.0012,001,162
2026-05-22Gift160$0.001,162
2026-05-18Conversion (derivative)25—196,290
2026-05-18Gift18,646$0.001,322
2026-05-18Gift18,646$0.0019,968
2026-05-18Conversion37,500$0.0038,614
2026-03-17Gift (derivative)2—196,315
2025-11-10Conversion (derivative)1,800—196,317
2025-11-10Gift400,000$0.001,114
2025-11-10Gift400,000$0.00401,114
2025-11-10Gift400,000$0.00801,114
2025-11-10Gift1,500,000$0.001,201,114
2025-11-10Conversion2,700,000$0.002,701,114
2025-07-14Gift30$0.001,114
2025-06-30Gift660,366$0.001,144
2025-06-30Gift660,366$0.00661,510
2025-06-30Gift660,366$0.001,321,876
2025-06-30Gift943,384$0.001,982,242
2025-06-30Gift9,433,839$0.002,925,626
2025-06-27Conversion (derivative)8,239—198,117
2025-06-27Conversion12,358,500$0.0012,359,465
2025-05-14Gift22$0.00965
2025-05-13Conversion (derivative)1—206,356
2025-05-13Gift1,304$0.00987
2025-05-13Conversion1,500$0.002,291
2025-04-09Gift160$0.00791
2025-04-07Gift (derivative)2—206,357

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.