CHECK CAPITAL MANAGEMENT INC/CA

CIK

1032814

Location

COSTA MESA, CA

Portfolio Value

Mid $3,492,836,452

Diversification

Highly concentrated

Filing Date

Global Rank

#1,137 / 8,794 ▼ 118 · as of Jun 2026

Top Industry

Insurance - Diversified 74.2%

Period ended 3 months ago

Filed Aug 5, 2026 · 2mo

26 quarters · since Mar 2020

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

46 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

74.2%

+0.3 pts

Top 5

90.0%

−0.1 pts

Top 10

97.6%

−0.3 pts

HHI

5,584

Highly concentrated+38

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Financial Services	87.8%	$3,067,986,741	13
Communication Services	3.7%	$129,816,429	2
Industrials	3.5%	$123,728,881	9
Consumer Cyclical	3.4%	$118,678,168	5
Consumer Defensive	1.0%	$36,014,972	1
Technology	0.3%	$11,579,170	6
Healthcare	0.1%	$2,148,707	3
Unclassified	0.1%	$1,981,737	3
Basic Materials	0.0%	$694,447	3
Energy	0.0%	$207,200	1

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

19 positions

Ticker	Company	Δ Shares	Shares	Value
BRK-B	Berkshire Hathaway Inc	+242,384	5,136,503	$2,591,208,525
BN	BROOKFIELD Corp /ON/	+29,233	4,409,171	$187,786,592
HSY	Hershey Co	+12,962	205,272	$36,014,972
DIS	Walt Disney Co	+11,641	450,174	$43,329,247
JEF	Jefferies Financial Group Inc.	+5,739	685,910	$34,281,781
FNDA	Schwab Fundamental U.S. Small Company ETF	+5,600	15,400	$533,960
MKL	Markel Group Inc.	+2,323	79,209	$154,695,969
AMZN	Amazon Com Inc	+1,970	206,057	$49,111,625
FRFHF	Fairfax Financial Holdings Ltd/ Can	+1,760	1,979	$3,259,037
W	Wayfair Inc.	+1,077	169,025	$15,621,290
NVDA	Nvidia Corp	+960	3,077	$615,676
AAPL	Apple Inc.	+366	23,439	$6,782,309
FCNCA	First Citizens Bancshares Inc /De/	+287	44,355	$92,293,440
BAM	Brookfield Asset Management Ltd.	+175	13,129	$588,835
MSFT	Microsoft Corp	+150	6,229	$2,323,541
WFC	Wells Fargo & Company/Mn	+70	4,483	$370,475
BAC	Bank Of America Corp /De/	+6	12,038	$685,925
UBER	Uber Technologies, Inc	+5	4,865	$351,058
JPM	Jpmorgan Chase & Co	+1	957	$313,254
No positions match the current search.

Trimmed

Positions the filer reduced

9 positions

Ticker	Company	Δ Shares	Shares	Value
LKQ	Lkq Corp	−30,690	1,886,416	$49,669,333
SIRI	Sirius Xm Holdings Inc.	−14,796	2,927,799	$86,487,182
AER	AerCap Holdings N.V.	−9,788	807,867	$117,770,851
TRUP	Trupanion, Inc.	−620	40,075	$992,657
TSLA	Tesla, Inc.	−150	2,350	$988,410
UNH	Unitedhealth Group Inc	−110	1,122	$466,336
CVX	Chevron Corp	−100	1,250	$207,200
FDX	Fedex Corp	−32	961	$300,917
BH-A	Biglari Holdings Inc.	−16	1,562	$3,287,510
No positions match the current search.

New Positions

Positions the filer opened this quarter

4 positions

Ticker	Company	Shares	Value
FCX	Freeport-Mcmoran Inc	3,881	$244,076
HBM	Hudbay Minerals Inc.	9,940	$234,683
LRCX	Lam Research Corp	500	$216,665
TGB	Trekor Metals Ltd	31,350	$215,688
No positions match the current search.

Sold Out

Positions the filer fully exited

2 positions

Ticker	Company	Shares	Value
COP	Conocophillips	2,534	$334,488
VZ	Verizon Communications Inc	4,800	$240,960
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

46 tracked positions · $3,492,836,452 total · filing declares 31 positions · $3,745,520,095 · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Technology

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
BRK-B	Berkshire Hathaway Inc CALL + SHARES Financial Services	Added	5,136,503	+242,384	$2,591,208,525	+9.5%	74.19%
BN	BROOKFIELD Corp /ON/ Financial Services	Added	4,409,171	+29,233	$187,786,592	+5.9%	5.38%
MKL	Markel Group Inc. Financial Services	Added	79,209	+2,323	$154,695,969	+5.1%	4.43%
AER	AerCap Holdings N.V. Industrials	Reduced	807,867	-9,788	$117,770,851	+5.0%	3.37%
FCNCA	First Citizens Bancshares Inc /De/ Financial Services	Added	44,355	+287	$92,293,440	+11.1%	2.64%
SIRI	Sirius Xm Holdings Inc. Communication Services	Reduced	2,927,799	-14,796	$86,487,182	+27.3%	2.48%
LKQ	Lkq Corp Consumer Cyclical	Reduced	1,886,416	-30,690	$49,669,333	−11.8%	1.42%
AMZN	Amazon Com Inc Consumer Cyclical	Added	206,057	+1,970	$49,111,625	+15.5%	1.41%
DIS	Walt Disney Co Communication Services	Added	450,174	+11,641	$43,329,247	+2.5%	1.24%
HSY	Hershey Co Consumer Defensive	Added	205,272	+12,962	$36,014,972	−9.9%	1.03%
JEF	Jefferies Financial Group Inc. Financial Services	Added	685,910	+5,739	$34,281,781	+22.1%	0.98%
W	Wayfair Inc. Consumer Cyclical	Added	169,025	+1,077	$15,621,290	+23.7%	0.45%
AAPL	Apple Inc. Technology	Added	23,439	+366	$6,782,309	+15.8%	0.19%
BH-A	Biglari Holdings Inc. Consumer Cyclical	Reduced	1,562	-16	$3,287,510	+19.5%	0.09%
FRFHF	Fairfax Financial Holdings Ltd/ Can Financial Services	Added	1,979	+1,760	$3,259,037	+774.4%	0.09%
MSFT	Microsoft Corp Technology	Added	6,229	+150	$2,323,541	+3.3%	0.07%
CAT	Caterpillar Inc Industrials	Held	1,717	0	$1,828,433	+50.3%	0.05%
AMGN	Amgen Inc Healthcare	Held	3,885	0	$1,406,836	+2.9%	0.04%
GLW	Corning Inc /Ny Technology	Held	5,050	0	$1,289,921	+87.9%	0.04%
GS	Goldman Sachs Group Inc Financial Services	Held	1,230	0	$1,243,985	+19.5%	0.04%
GE	General Electric Co Industrials	Held	2,990	0	$1,117,452	+31.7%	0.03%
GEV	GE Vernova Inc. Industrials	Held	901	0	$1,058,548	+34.6%	0.03%
TRUP	Trupanion, Inc. Financial Services	Reduced	40,075	-620	$992,657	−4.8%	0.03%
TSLA	Tesla, Inc. Consumer Cyclical	Reduced	2,350	-150	$988,410	+6.4%	0.03%
AAXJ	iShares MSCI All Country Asia ex Japan ETF	Held	8,800	0	$727,144	—	0.02%
SPY	Spdr S&P 500 ETF Trust	Held	965	0	$720,633	+14.8%	0.02%
BAC	Bank Of America Corp /De/ Financial Services	Added	12,038	+6	$685,925	+16.9%	0.02%
RTX	RTX Corp Industrials	Held	3,489	0	$661,967	−1.6%	0.02%
NVDA	Nvidia Corp Technology	Added	3,077	+960	$615,676	+66.8%	0.02%
BAM	Brookfield Asset Management Ltd. Financial Services	Added	13,129	+175	$588,835	+2.3%	0.02%
FNDA	Schwab Fundamental U.S. Small Company ETF	Added	15,400	+5,600	$533,960	+87.0%	0.02%
UNH	Unitedhealth Group Inc Healthcare	Reduced	1,122	-110	$466,336	+39.9%	0.01%
FAST	Fastenal Co Industrials	Held	7,920	0	$380,397	+3.5%	0.01%
WFC	Wells Fargo & Company/Mn Financial Services	Added	4,483	+70	$370,475	+5.5%	0.01%
UBER	Uber Technologies, Inc Technology	Added	4,865	+5	$351,058	+0.4%	0.01%
JPM	Jpmorgan Chase & Co Financial Services	Added	957	+1	$313,254	+11.4%	0.01%
BA	Boeing Co Industrials	Held	1,445	0	$312,799	+8.8%	0.01%
FDX	Fedex Corp Industrials	Reduced	961	-32	$300,917	−14.9%	0.01%
ITW	Illinois Tool Works Inc Industrials	Held	1,100	0	$297,517	+3.9%	0.01%
DGX	Quest Diagnostics Inc Healthcare	Held	1,300	0	$275,535	+8.1%	0.01%
CFG	Citizens Financial Group Inc/Ri Financial Services	Held	3,800	0	$266,266	+16.8%	0.01%
FCX	Freeport-Mcmoran Inc Basic Materials	NEW	3,881	NEW	$244,076	NEW	0.01%
HBM	Hudbay Minerals Inc. Basic Materials	NEW	9,940	NEW	$234,683	NEW	0.01%
LRCX	Lam Research Corp Technology	NEW	500	NEW	$216,665	NEW	0.01%
TGB	Trekor Metals Ltd Basic Materials	NEW	31,350	NEW	$215,688	NEW	0.01%
CVX	Chevron Corp Energy	Reduced	1,250	-100	$207,200	−25.8%	0.01%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.