Skip to main content
Equibles

CHECK CAPITAL MANAGEMENT INC/CA

Position in BRK-B — Berkshire Hathaway Inc

CIK 1032814 COSTA MESA, CA
Back to BRK-B Full portfolio

Position in BRK-B

as of Jun 30, 2026 · filed Aug 5, 2026
Position Value
$580,941,739
+$28,975,191 QoQ
Shares Held
1,119,103
+1.0% QoQ
Ownership
0.079%
of shares outstanding
% of Portfolio
44.52%
of 13F equity value
Holder Rank
#102
of 4,970 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in BRK-B Over Time

Shares Held

Position Value (USD)

Derivatives in BRK-B

reported options exposure · as of Jun 30, 2026
CallValue
$2,010,266,786
CallShares
4,017,400
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Insurance - Diversified

Financial Services · as of Jun 30, 2026

CHECK CAPITAL MANAGEMENT INC/CA holds $580,941,739 across 1 Insurance - Diversified name. BRK-B ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 BRK-B
Berkshire Hathaway Inc
This page 		1,119,103 $580,941,739

All Filings in BRK-B

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,010,266,786 4,017,400
2026-06-30 $559,973,939 1,119,075
2026-03-31 $1,814,107,440 3,785,700
2026-03-31 $531,140,488 1,108,390
2025-12-31 $1,764,301,500 3,510,000
2025-12-31 $554,175,646 1,102,508
2025-09-30 $540,525,938 1,075,160
2025-09-30 $1,454,879,286 2,893,900
2025-06-30 $520,777,015 1,072,065
2025-06-30 $1,440,550,935 2,965,500
2025-03-31 $1,889,860,130 3,548,500
2025-03-31 $565,460,956 1,061,739
2024-12-31 $499,488,269 1,101,942
2024-12-31 $1,846,028,128 4,072,600
2024-09-30 $512,945,041 1,114,468
2024-09-30 $1,844,123,742 4,006,700
2024-06-30 $1,653,845,400 4,065,500
2024-06-30 $498,887,722 1,226,371
2024-03-31 $1,678,505,580 3,991,500
2024-03-31 $506,045,357 1,203,380
2023-12-31 $1,472,149,816 4,127,600
2023-12-31 $497,346,320 1,394,455
2023-09-30 $481,557,760 1,374,701
2023-09-30 $1,416,823,380 4,044,600
2023-06-30 $1,336,174,400 3,918,400
2023-06-30 $463,835,702 1,360,222
2023-03-31 $420,016,434 1,360,289
2023-03-31 $1,150,940,175 3,727,500
2022-12-31 $351,767,288 1,138,774
2022-12-31 $1,090,015,430 3,528,700
2022-09-30 $950,778,114 3,560,700
2022-09-30 $318,346,584 1,192,220
2022-06-30 $994,802,974 3,643,700
2022-06-30 $328,105,880 1,201,765
2022-03-31 $1,310,001,920 3,712,000
2022-03-31 $449,269,605 1,273,043
2021-12-31 $383,419,062 1,282,338
2021-12-31 $1,114,462,700 3,727,300
2021-09-30 $984,931,284 3,608,600
2021-09-30 $345,000,799 1,264,017
2021-06-30 $347,337,468 1,249,775
2021-06-30 $1,011,323,088 3,638,900
2021-03-31 $894,426,017 3,501,100
2021-03-31 $335,152,114 1,311,904
2020-12-31 $302,062,382 1,302,723
2020-12-31 $844,725,597 3,643,100
2020-09-30 $747,547,164 3,510,600
2020-09-30 $286,932,817 1,347,482
2020-06-30 $661,593,762 3,706,200
2020-06-30 $232,686,892 1,303,495