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BRK-A Berkshire Hathaway Inc

NYSE, CIK 0001067983, fiscal year ends 12/31. Last price 813595.0 on 2026-10-23, market value 1161.1 billion dollars.

Machine-readable: BRK-A.json, BRK-A.md. Sections: Graham Defensive, Magic Formula, Momentum, Insider, Buffett Quality, Lynch GARP, Graham Enterprising, Piotroski F-Score, earnings record, insiders, filings and links.

Philosophy	Score	Status	Current inputs as of	History used	Price	Verification	Rules
Graham Defensive	n/a	not scored (financial)	—	—	—	—	method
Magic Formula	n/a	not scored	—	—	—	—	method
Momentum	67	ok	2026-10-23	—	2026-10-23	—	method
Insider	23	ok	2026-10-23	—	—	—	method
Buffett Quality	n/a	not scored (financial)	—	—	—	—	method
Lynch GARP	n/a	not scored (financial)	—	—	—	—	method
Graham Enterprising	n/a	not scored (financial)	—	—	—	—	method
Piotroski F-Score	n/a	not scored (financial)	—	—	—	—	method

Market value, source trail

market_value = traded_price (price date) / depositary_ratio x latest point-in-time SEC shares outstanding (share-count date shown; from the filing cover page, summed across share classes only where the issuer filing verifies the classes are economically equivalent (rule + evidence URL in the source text), else withheld; priced at the primary listed class, so where other classes trade at a different price the value is an approximation; restated only for issuer-verified splits after the count date); weighted-average share counts are never used

Input	Value	Unit	Period / date	Source
Traded price	813595.0	USD per traded unit (share or ADS)	2026-10-23	Yahoo Finance
SEC shares outstanding	1,427,140	underlying shares	2026-07-29	SEC cover page 10-Q 0001193125-26-341032 (sum of classes (Common Class A [Member] 488,450 x 1; Common Class B [Member] 1,408,035,161 x 0.000666667; class economics verified in https://www.sec.gov/Archives/edgar/data/1067983/000119312526083899/brka-20251231.htm)); filing document https://www.sec.gov/Archives/edgar/data/1067983/000119312526341032/brka-20260630.htm 0001193125-26-341032
Depositary ratio	1.0	underlying shares per traded unit		domestic 10-K filer; SEC shares are the traded units
Market value price date × latest reported shares	1,161,114,055,626	USD	2026-10-23 shares at 2026-07-29	813595.0 (price 2026-10-23) / 1 x 1,427,140 (shares at 2026-07-29) = 1,161,114,055,626

Graham Defensive

not scored (financial). How this is scored.

not scored (financial).

Magic Formula

not scored. How this is scored.

not scored.

Momentum

67 of 100. ok. How this is scored.

Test or factor	Value	Points
12-1 month return	4.0 % (percentile 46.0)	23.0 / 50
6 month return	15.2 % (percentile 72.8)	14.6 / 20
Price / 52-week high	0.992	14.9 / 15
Volatility penalty (60d annualised)	13.4 %	14.9 / 15

Inputs, 1 numbers with their sources

Input	Value	Period	Source	Check
Adjusted close series (14 months)	813595.0	2026-10-23	Yahoo Finance / Alpaca Market Data daily history	not cross-checked

Insider

23 of 100. ok. How this is scored. Form 4 data loaded through 2026-10-23

Test or factor	Value	Points
Open-market buy value / market cap (percentile among buyers)	0.0 bp	4.3 / 35
Distinct buyers	1	6.2 / 25
Buyer seniority	0.7	14.0 / 20
Recency (half-life 30d)	0.18	1.8 / 10
Sales penalty (excludes 10b5-1 plan sales)	0.17 bp	-3.4 / 0

Inputs, 4 numbers with their sources

Input	Value	Period	Source	Check
Form 4 S Jain Ajit 2026-09-28	19972673.0	2026-09-28	SEC Form 4 (insider transactions data set)	not cross-checked
Form 4 P O'Sullivan Michael J. 2026-08-12	205008.0	2026-08-12	SEC Form 4 (insider transactions data set)	not cross-checked
Form 4 P O'Sullivan Michael J. 2026-08-12	22085.23	2026-08-12	SEC Form 4 (insider transactions data set)	not cross-checked
Form 4 P O'Sullivan Michael J. 2026-08-12	22978.8	2026-08-12	SEC Form 4 (insider transactions data set)	not cross-checked

Buffett Quality

not scored (financial). How this is scored.

not scored (financial).

Lynch GARP

not scored (financial). How this is scored.

not scored (financial).

Graham Enterprising

not scored (financial). How this is scored.

not scored (financial).

Piotroski F-Score

not scored (financial). How this is scored.

not scored (financial).

Earnings record

SEC XBRL, by fiscal year (named by the calendar year it ends in); EPS split-adjusted to today's shares; each row links to the filing.

FY	Ended	Revenue, $M	Net income, $M	Dividend	Filing
2013	2013-12-31	182,150	19,476	none	0001193125-16-483023
2014	2014-12-31	194,699	19,872	none	0001193125-17-056969
2015	2015-12-31	210,943	24,083	none	0001193125-18-057033
2016	2016-12-31	215,114	24,074	none	0001193125-19-048926
2017	2017-12-31	239,933	44,940	none	0001564590-20-005874
2018	2018-12-31	247,837	4,021	none	0001564590-21-009611
2019	2019-12-31	254,616	81,417	none	0001564590-22-007322
2020	2020-12-31	245,579	42,521	none	0000950170-23-004451
2021	2021-12-31	276,185	89,937	none	0000950170-24-019719
2022	2022-12-31	302,020	-22,759	none	0000950170-25-025210
2023	2023-12-31	364,482	96,223	none	0001193125-26-083899
2024	2024-12-31	371,433	88,995	none	0001193125-26-083899
2025	2025-12-31	371,444	66,968	none	0001193125-26-083899

Insider transactions

SEC Form 4 open-market purchases and sales from the insider data sets; latest 20.

Date	Insider	Role	Type	Shares	Price	Value
2026-09-28	Jain Ajit	Chair	sale	39,700	503.09	19,972,673
2026-08-12	O'sullivan Michael J.	officer	buy	400	512.52	205,008
2026-08-12	O'sullivan Michael J.	officer	buy	43	513.61	22,085
2026-08-12	O'sullivan Michael J.	officer	buy	45	510.64	22,979
2026-05-06	O'sullivan Michael J.	officer	buy	53	470.22	24,922
2026-05-06	O'sullivan Michael J.	officer	buy	483	467.13	225,624

Filings and links

Third-party sites are linked only; nothing from them is stored here.

SEC: filing index, 8-K, Form 4, XBRL companyfacts
Prices: Yahoo Finance, Stooq
Elsewhere: morningstar, finviz, stockanalysis, seeking alpha, openinsider, google news

Cite as: The Claude Trader snapshot 2026-10-26, https://theclaudetrader.com/s/BRK-A; data from SEC EDGAR XBRL and market prices (Alpaca Market Data, Yahoo Finance) to 2026-10-23. Data last checked 2026-10-26.