Form 13-F position report

BERKSHIRE HATHAWAY INC DEL

Reported by ADAMS DIVERSIFIED EQUITY FUND INC

BRK-B CUSIP 084670702 Manager CIK 0000002230

Reported 83,843 shares, unchanged from the prior quarter.

Reported value -4.7%; share count 0.0% vs. the prior quarter.

Unchanged
% of reported 13F value 1.42% This manager · Q1 2026
Shares 83,843 Quarter-end amount reported
Reported value $40,177,566 Fair value at quarter end
Consecutive quarters held 35 Through Q1 2026

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.

Reported position value by quarter
Date Holding Value
2021-12-31 45089000
2022-03-31 34091000
2022-06-30 26374000
2022-09-30 25794000
2022-12-31 36388420
2023-03-31 34055478
2023-06-30 24737163
2023-09-30 25411813
2023-12-31 29475452
2024-03-31 34753034
2024-06-30 33619172
2024-09-30 38037267
2024-12-31 37641731
2025-03-31 42789075
2025-06-30 46363346
2025-09-30 46776438
2025-12-31 42143684
2026-03-31 40177566
2026-06-30 41954199
2026-09-30 37019097

Quarterly position history

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

20 quarters
Quarterly reported position history for BERKSHIRE HATHAWAY INC DEL held by ADAMS DIVERSIFIED EQUITY FUND INC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q3 2026 Reduced 74,343 -9,500 (-11.3%) 1.12% $37,019,097 2026-10-21
Q2 2026 Unchanged 83,843 0 (0.0%) 1.28% $41,954,199 2026-07-22
Q1 2026 Unchanged 83,843 0 (0.0%) 1.42% $40,177,566 2026-04-22
Q4 2025 Reduced 83,843 -9,200 (-9.9%) 1.4% $42,143,684 2026-02-13
Q3 2025 Reduced 93,043 -2,400 (-2.5%) 1.58% $46,776,438 2025-10-22
Q2 2025 Added 95,443 +15,100 (18.8%) 1.66% $46,363,346 2025-07-30
Q1 2025 Reduced 80,343 -2,700 (-3.3%) 1.7% $42,789,075 2025-04-23
Q4 2024 Added 83,043 +400 (0.5%) 1.42% $37,641,731 2025-02-11
Q3 2024 Unchanged 82,643 0 (0.0%) 1.4% $38,037,267 2024-10-25
Q2 2024 Unchanged 82,643 0 (0.0%) 1.15% $33,619,172 2024-08-01
Q1 2024 Unchanged 82,643 0 (0.0%) 1.23% $34,753,034 2024-04-24
Q4 2023 Added 82,643 +10,100 (13.9%) 1.16% $29,475,452 2024-02-12
Q3 2023 Unchanged 72,543 0 (0.0%) 1.09% $25,411,813 2023-10-25
Q2 2023 Reduced 72,543 -37,751 (-34.2%) 1.03% $24,737,163 2023-08-01
Q1 2023 Reduced 110,294 -7,506 (-6.4%) 1.53% $34,055,478 2023-04-26
Q4 2022 Added 117,800 +21,200 (21.9%) 1.74% $36,388,420 2023-02-03
Q3 2022 Unchanged 96,600 0 (0.0%) 1.29% $25,794,000 2022-10-26
Q2 2022 Unchanged 96,600 0 (0.0%) 1.25% $26,374,000 2022-07-27
Q1 2022 Reduced 96,600 -54,200 (-35.9%) 1.35% $34,091,000 2022-04-27
Q4 2021 Reduced 150,800 -53,800 (-26.3%) 1.71% $45,089,000 2022-02-11
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

5073 managers reported BERKSHIRE HATHAWAY INC DEL for Q1 2026.

Managers reporting BERKSHIRE HATHAWAY INC DEL in Q1 2026.
Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc Added 121,207,647 +13,914 1.01% $58,082,703,896 7 qtrs
VANGUARD CAPITAL MANAGEMENT LLC New 117,415,535 +117,415,535 1.39% $56,265,524,372 1 qtr
STATE STREET CORPORATION Added 74,099,062 +173,994 1.23% $35,508,270,510 42 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 41,159,806 +1,137,640 1.22% $19,683,991,574 52 qtrs
MORGAN STANLEY Added 26,854,441 +574,240 0.78% $12,868,648,994 52 qtrs
VANGUARD PORTFOLIO MANAGEMENT LLC New 23,728,514 +23,728,514 0.59% $11,370,703,909 1 qtr
BILL & MELINDA GATES FOUNDATION TRUST Reduced 17,048,304 -2,358,460 25.8% $8,169,547,277 52 qtrs
JPMorgan Chase & Co Added 16,361,338 +3,477,753 0.5% $7,766,073,170 52 qtrs
NORTHERN TRUST CORPORATION Reduced 15,487,316 -41,012 0.98% $7,421,521,826 52 qtrs
FMR LLC Added 14,953,698 +5,495,029 0.38% $7,165,811,922 52 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
March 31, 2026
Filed
April 22, 2026
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
83,843
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.