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BRK-

Ticker case file

BRK-B

BERKSHIRE HATHAWAY INC DEL

13FSmart MoneyPublic Filings
$475.37+0.82%NYQ

Tracked funds

14Unique WSM-tracked managers; table rows may include common shares and options

Politicians active

13Recent transactions disclosed via House Clerk / Senate eFD

13F notional

$13.1B2026-03-31

Top conviction

6.7%max % across any fund's portfolio
Source layer

This page is the WSM tracked universe, not market-wide ownership. 13F rows are quarterly snapshots, about 45 days delayed; PTR rows are event-based public disclosures.

13F filing

Funds holding this ticker

23
Manager13F valueConvictionClassOptionReportedSEC filing
FMR LLCOther$7.2B0.38%SH—2026-03-31SEC filing
Citadel Advisors LLCOther$1.2B0.20%SHCALL2026-03-31SEC filing
GQG Partners LLCOther$908.9M1.4%SH—2026-03-31SEC filing
Two Sigma Investments, LPOther$777.1M0.63%SH—2026-03-31SEC filing
Millennium Management LLCHedge$726M0.30%SHPUT2026-03-31SEC filing
Citadel Advisors LLCHedge$627.8M0.10%SHPUT2026-03-31SEC filing
Citadel Advisors LLCOther$571.9M0.09%SH—2026-03-31SEC filing
Millennium Management LLCOther$313M0.13%SH—2026-03-31SEC filing
ClearBridge Investments, LLCOther$260.1M0.23%SH—2026-03-31SEC filing
Balyasny Asset Management L.P.Other$210.6M0.27%SH—2026-03-31SEC filing
Millennium Management LLCOther$89M0.04%SHCALL2026-03-31SEC filing
Soros Fund Management LLCOther$63.9M0.70%SH—2026-03-31SEC filing
Point72 Asset Management, L.P.Other$53.1M0.07%SHCALL2026-03-31SEC filing
Balyasny Asset Management L.P.Hedge$18.4M0.02%SHPUT2026-03-31SEC filing
Two Sigma Investments, LPOther$17.3M0.01%SHCALL2026-03-31SEC filing
Two Sigma Investments, LPHedge$15.8M0.01%SHPUT2026-03-31SEC filing
Point72 Asset Management, L.P.Hedge$13.3M0.02%SHPUT2026-03-31SEC filing
Balyasny Asset Management L.P.Other$6.6M0.01%SHCALL2026-03-31SEC filing
Matrix Asset Advisors, Inc.Other$5.6M0.51%SH—2026-03-31SEC filing
Teewinot Capital Advisers, L.L.C.Other$4.5M0.36%SH—2026-03-31SEC filing
Renaissance Technologies LLCOther$824.9K0.00%SH—2026-03-31SEC filing
Loomis, Sayles & Company, L.P.Other$115.5K0.00%SH—2026-03-31SEC filing
Hitchwood Capital Management LPOther$12.4K6.7%SH—2023-03-31SEC filing

Politician

Politician PTR activity

20
Public datePoliticianActionOwnerAmount rangeFiling
2026-04-15August Lee Pfluger HouseholdR · TX-11PurchaseSelf$15K–$50K20034348
2026-04-07Gilbert Cisneros HouseholdD · CA-31Sale (Partial)Self$1K–$15K20034285
2026-04-07Gilbert Cisneros HouseholdD · CA-31Sale (Partial)Self$1K–$15K20034285
2026-03-31Mark Alford HouseholdR · MO-04Sale (Partial)Unknown$1K–$15K20034201
2025-12-19Rob Bresnahan HouseholdR · PA-08SaleDependent$50K–$100K20033574
2025-12-09Richard Dean Dr Mccormick HouseholdR · GA-07PurchaseSelf$1K–$15K20033610
2025-10-28Marjorie Taylor Greene HouseholdR · GA-14PurchaseSelf$1K–$15K20033360
2025-10-21Eleanor Holmes Norton HouseholdD · DC-00Sale (Partial)Dependent$15K–$50K20033318
2025-10-10Valerie Hoyle HouseholdD · OR-04SaleSelf$1K–$15K20032211
2025-10-05Sheri Biggs HouseholdR · SC-03SaleSelf$15K–$50K20032149
2025-08-08Adam Smith HouseholdD · WA-09SaleUnknown$1K–$15K20030868
2025-07-14Scott Scott Franklin HouseholdR · FL-18SaleSelf$15K–$50K20030670
2025-07-03Scott Scott Franklin HouseholdR · FL-18PurchaseUnknown$1K–$15K20030494
2025-07-03Scott Scott Franklin HouseholdR · FL-18Sale (Partial)Unknown$1K–$15K20030494
2025-06-20Mike Kennedy HouseholdR · UT-03PurchaseDependent$1K–$15K20030542
2025-05-14Josh Gottheimer HouseholdD · NJ-05Sale (Partial)Self$1K–$15K20030338
2025-05-14Josh Gottheimer HouseholdD · NJ-05Sale (Partial)Self$1K–$15K20030338
2025-05-06Marjorie Taylor Greene HouseholdR · GA-14PurchaseSelf$1K–$15K20030295
2025-04-07Marjorie Taylor Greene HouseholdR · GA-14PurchaseSelf$1K–$15K20029089
2025-03-11Eleanor Holmes Norton HouseholdD · DC-00Sale (Partial)Dependent$15K–$50K20027950

Combined activity

13F filings + PTR transactions, newest first

WSM tracked universe · data through Q1 2026 · 45d disclosure lagNot investment advice · Historical disclosures do not represent current positions