WAVEMAN · COMPANY

BRK-B · Berkshire Hathaway Inc

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TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475

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BRK-B

Name: BERKSHIRE HATHAWAY INC (BRK-B) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

BERKSHIRE HATHAWAY INC

INSURANCE · FIRE, MARINE & CASUALTY INSURANCE · CIK 0001067983

SEC FILINGS☆ WATCH

INSIDER NET · 180D

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

2,251

13F, latest reported quarter

REVENUE GROWTH

-1.0%

XBRL, annual

NET MARGIN

27.1%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

no Form 4 purchases or sales on file

CONGRESS

no member of Congress has reported trading it

FUNDS

2,251 funds added or opened last quarter

the highest in Insurance

REVENUE

-1.0% year over year

below 81% of Insurance

MARGIN

27.1% net margin

more than 82% of Insurance

BUYBACKS

$4.4B repurchased, FY to 2026-06-30

the highest in Insurance

SHORT

no short interest reported

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

2,251 funds added or opened positions in the latest 13F quarter, of 5,033 holders.

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

The complete filing record, in one place.

The record shows 2,251 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

GSHD DGICA PLMR ALHC CRVL HGTY KNSL TRV AFL MKL GL OSCR

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

No insider purchases or sales are on record for BERKSHIRE HATHAWAY INC in the period covered. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER

FILED

VALUE

no insider purchases or sales on record

0 TRANSACTIONS ON RECORD

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Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

121,183,559.0 sh

$61.0B

VANGUARD CAPITAL MANAGEMENT LLC

118,361,558.0 sh

$60.3B

STATE STREET CORP

75,748,056.0 sh

$38.1B

GEODE CAPITAL MANAGEMENT, LLC

41,525,290.0 sh

$20.7B

FMR LLC

10,414,540.0 sh

$16.1B

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Blue Chip Investor Fund

$10.8M POSITION · AS OF 2026-03-31

25.0%

Direxion Daily BRKB Bull 2X Shares

$12.8M POSITION · AS OF 2026-04-30

21.9%

The Cook & Bynum Fund

$15.1M POSITION · AS OF 2026-03-31

18.3%

GoodHaven Fund

$43.3M POSITION · AS OF 2026-02-28

16.8%

Partners III Opportunity Fund

$51.8M POSITION · AS OF 2026-03-31

16.5%

iShares U.S. Financial Services ETF

$259.5M POSITION · AS OF 2026-04-30

12.9%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Government contracts

USASpending.gov · total award ceilings over the contract's life, including awards won through subsidiaries — not annual revenue

Department Of The Treasury

1OZ SILVER BLANK (UPSET SILVER AMERICAN EAGLE PLANCHETS) · 2026-08-12

$5.7M

FEDERAL AWARDS ≥ $25M IN THE LAST 90 DAYS · MATCHED VIA SAM.GOV PARENT REGISTRY

Executive pay vs shareholder return · Warren E. Buffett

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$389.5K

$16.1M

+117%

+135%

2024

$405.1K

$15.4M

+96%

+113%

2023

$413.6K

$11.0M

+56%

+57%

2022

$401.6K

$10.4M

+35%

+42%

2021

$373.2K

$10.4M

+30%

+19%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$247.2B	$249.7B	$254.9B	$207.8B
NET INCOME	$67.0B	$89.0B	$96.2B	$-22.8B
OPERATING CASH FLOW	$46.0B	$30.6B	$49.2B	$37.4B
BUYBACKS	—	$2.9B	$9.2B	$7.9B

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE