Form 13-F position report

BERKSHIRE HATHWY INC(HLDG CO)A

Reported by RK Asset Management LLC

Company profile Manager portfolio Source filing
BRK-A CUSIP 084670108 Manager CIK 0001595686
Latest reported change

Reported 4 shares, unchanged from the prior quarter.

Reported value 3.5%; share count 0.0% vs. the prior quarter.

Unchanged
% of reported 13F value 2.74% This manager · Q3 2025
Shares 4 Quarter-end amount reported
Reported value $3,016,000 Fair value at quarter end
Consecutive quarters held 12 Through Q3 2025

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Manager history

Quarterly position history

How this manager's reported quarter-end position changed over time.

18 quarters
Quarter Activity Shares Change % of reported 13F Reported value Filed
Q4 2025 Unchanged 4 0 (0.0%) 2.85% $3,019,000 2026-01-05
Q3 2025 Unchanged 4 0 (0.0%) 2.74% $3,016,000 2025-10-14
Q2 2025 Unchanged 4 0 (0.0%) 2.81% $2,914,000 2025-07-18
Q1 2025 Unchanged 4 0 (0.0%) 2.95% $3,194,000 2025-04-02
Q4 2024 Unchanged 4 0 (0.0%) 2.23% $2,724,000 2025-01-03
Q3 2024 Unchanged 4 0 (0.0%) 2.13% $2,765,000 2024-10-07
Q2 2024 Unchanged 4 0 (0.0%) 2.12% $2,449,000 2024-08-02
Q1 2024 Unchanged 4 0 (0.0%) 2.07% $2,538,000 2024-04-03
Q4 2023 Unchanged 4 0 (0.0%) 1.8% $2,170,000 2024-01-09
Q3 2023 Unchanged 4 0 (0.0%) 1.99% $2,126,000 2023-10-10
Q2 2023 Unchanged 4 0 (0.0%) 1.92% $2,071,000 2023-07-06
Q1 2023 Unchanged 4 0 (0.0%) 1.84% $1,862,000 2023-04-03
Q4 2022 Unchanged 4 0 (0.0%) 1.8% $1,875,000 2023-01-03
Q1 2022 Unchanged 4 0 (0.0%) 2.05% $2,118,000 2022-04-11
Q4 2021 Unchanged 4 0 (0.0%) 1.59% $1,803,000 2022-01-05
Q3 2021 Unchanged 4 0 (0.0%) 1.46% $1,645,000 2021-10-04
Q2 2021 Unchanged 4 0 (0.0%) 1.45% $1,674,000 2021-07-07
Q1 2021 Unchanged 4 0 (0.0%) 1.38% $1,542,000 2021-04-05
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Institutional context

Who else reported the position

1423 managers reported BERKSHIRE HATHWY INC(HLDG CO)A for Q3 2025.

Manager Activity Shares Change % of reported 13F Reported value Tenure
FMR LLC Reduced 27,065 -6,186 1.06% $20,412,423,000 50 qtrs
FIRST MANHATTAN CO Added 14,658 +321 29.2% $11,055,063,600 50 qtrs
VANGUARD GROUP INC Added 3,852 +4 0.04% $2,905,178,400 50 qtrs
HighTower Advisors LLC Reduced 1,829 -49 1.57% $1,379,431,800 50 qtrs
GARDNER RUSSO & QUINN LLC Reduced 1,541 -83 12.46% $1,162,222,200 50 qtrs
EVERETT HARRIS & CO CA Reduced 1,416 -1 13.17% $1,067,947,200 50 qtrs
Hikari Tsushin Inc Unchanged 1,127 0 57.15% $849,983,400 16 qtrs
MARKEL CORPORATION Unchanged 1,114 0 6.82% $840,178,800 50 qtrs
PNC FINANCIAL SERVICES GROUP INC Reduced 1,045 -39 0.48% $788,139,000 50 qtrs
Paralel Advisors LLC Unchanged 1,028 0 30.2% $775,317,600 16 qtrs
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Filing details and methodology As reported
Report period
September 30, 2025
Filed
October 14, 2025
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
4
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.