Form 13-F position report

BERKSHIRE HATHWY INC(HLDG CO)B

Reported by Claybrook Capital LLC

BRK-B CUSIP 084670702 Manager CIK 0001729848

Reported 52,501 shares, up 49,205 (1492.9%) from the prior quarter.

Reported value 1418.4%; share count 1492.9% vs. the prior quarter.

Added
% of reported 13F value 3.01% This manager · Q4 2018
Shares 52,501 Quarter-end amount reported
Reported value $10,720,000 Fair value at quarter end
Consecutive quarters held 5 Through Q4 2018

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
2018-12-31 10720000
2019-03-31 622000
2019-06-30 660000
2019-09-30 644000
2019-12-31 708000
2020-03-31 1472000
2020-06-30 2440000
2020-09-30 2858000
2020-12-31 3089000
2021-03-31 3403000
2021-06-30 404000
2021-09-30 3588000
2021-12-31 3931000
2022-03-31 4639000
2022-06-30 3589000
2022-09-30 3510000
2022-12-31 3229550
2023-03-31 3243629
2023-06-30 3698145
2023-09-30 3846294

Quarterly position history

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

20 quarters
Quarterly reported position history for BERKSHIRE HATHWY INC(HLDG CO)B held by Claybrook Capital LLC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q3 2023 Added 10,980 +135 (1.2%) 2.2% $3,846,294 2023-10-24
Q2 2023 Added 10,845 +340 (3.2%) 1.97% $3,698,145 2023-07-17
Q1 2023 Added 10,505 +50 (0.5%) 1.81% $3,243,629 2023-04-18
Q4 2022 Reduced 10,455 -2,691 (-20.5%) 1.98% $3,229,550 2023-01-24
Q3 2022 Unchanged 13,146 0 (0.0%) 2.23% $3,510,000 2022-10-20
Q2 2022 Unchanged 13,146 0 (0.0%) 2.12% $3,589,000 2022-07-18
Q1 2022 Unchanged 13,146 0 (0.0%) 2.3% $4,639,000 2022-05-06
Q4 2021 Unchanged 13,146 0 (0.0%) 1.85% $3,931,000 2022-01-20
Q3 2021 Added 13,146 +11,692 (804.1%) 1.81% $3,588,000 2021-11-15
Q2 2021 Reduced 1,454 -11,866 (-89.1%) 0.13% $404,000 2021-07-26
Q1 2021 Unchanged 13,320 0 (0.0%) 1.98% $3,403,000 2021-04-30
Q4 2020 Reduced 13,320 -100 (-0.7%) 2.04% $3,089,000 2021-02-02
Q3 2020 Reduced 13,420 -250 (-1.8%) 2.15% $2,858,000 2020-10-28
Q2 2020 Added 13,670 +5,620 (69.8%) 2.09% $2,440,000 2020-07-29
Q1 2020 Added 8,050 +4,954 (160.0%) 1.34% $1,472,000 2020-05-05
Q4 2019 Unchanged 3,096 0 (0.0%) 0.33% $708,000 2020-02-11
Q3 2019 Unchanged 3,096 0 (0.0%) 0.33% $644,000 2019-11-13
Q2 2019 Unchanged 3,096 0 (0.0%) 0.35% $660,000 2019-08-13
Q1 2019 Reduced 3,096 -49,405 (-94.1%) 0.33% $622,000 2019-05-15
Q4 2018 Added 52,501 +49,205 (1492.9%) 3.01% $10,720,000 2019-02-14
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

2125 managers reported BERKSHIRE HATHWY INC(HLDG CO)B for Q4 2018.

Managers reporting BERKSHIRE HATHWY INC(HLDG CO)B in Q4 2018.
Manager Activity Shares Change % of reported 13F Reported value Tenure
VANGUARD GROUP INC Added 135,986,951 +3,935,326 1.25% $27,765,816,000 23 qtrs
BlackRock Inc Added 107,111,080 +2,969,209 1.1% $21,869,941,000 23 qtrs
STATE STREET CORPORATION Reduced 78,843,198 -2,487,668 1.47% $16,098,204,000 13 qtrs
BILL & MELINDA GATES FOUNDATION TRUST Reduced 57,078,974 -5,000,000 53.15% $11,654,385,000 23 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 23,330,983 +1,540,018 1.47% $4,755,592,000 23 qtrs
NORTHERN TRUST CORPORATION Added 20,347,246 +508,245 1.17% $4,154,500,000 23 qtrs
FMR LLC Added 20,099,466 +3,924,810 0.56% $4,103,909,000 23 qtrs
THE BANK OF NEW YORK MELLON CORPORATION Reduced 15,344,340 -868,448 0.98% $3,133,007,000 23 qtrs
NORGES BANK Added 10,538,477 +1,037,278 0.8% $2,151,747,000 23 qtrs
Capital Research Global Investors Added 10,082,180 +2,189,177 0.72% $2,058,580,000 23 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
December 31, 2018
Filed
February 14, 2019
Filing type
13F-HR
Position type
Stock

Voting authority reported

Sole
0
Shared
0
None
52,501

“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.