SeaBridge Investment Advisors LLC

Position in BRK-B — Berkshire Hathaway Inc

CIK 1304229 SUMMIT, NJ

Back to BRK-B Full portfolio

Position in BRK-B

as of Jun 30, 2026 · filed Jul 17, 2026 Compact

Position Value

$14,454,265

+$285,461 QoQ

Shares Held

28,886

+2.9% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

3.01%

of 13F equity value

Holder Rank

#1,092

of 4,965 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)

Position in Insurance - Diversified

Financial Services · as of Jun 30, 2026

SeaBridge Investment Advisors LLC holds $16,069,113 across 3 Insurance - Diversified names. BRK-B ranks #1 (90.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BRK-B	Berkshire Hathaway Inc This page	28,886	$14,454,265
2	AIG	American International Group, Inc.	15,825	$1,179,437
3	ACGL	Arch Capital Group Ltd.	4,486	$435,411

All Filings in BRK-B

Export CSV

31 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$14,454,265	28,886	+2.9%	Shares	Sole	2026-07-17
2026-03-31 BRK-A	$718,140	1	0.0%	Shares	Sole	2026-04-29
2026-03-31	$13,450,664	28,069	+13.4%	Shares	Sole	2026-04-29
2025-12-31 BRK-A	$754,800	1	0.0%	Shares	Sole	2026-01-26
2025-12-31	$12,437,571	24,744	+12.5%	Shares	Sole	2026-01-26
2025-09-30 BRK-A	$754,200	1	0.0%	Shares	Sole	2025-10-22
2025-09-30	$11,055,755	21,991	-0.1%	Shares	Sole	2025-10-22
2025-06-30 BRK-A	$728,800	1	0.0%	Shares	Sole	2025-07-17
2025-06-30	$10,698,112	22,023	+1.2%	Shares	Sole	2025-07-17
2025-03-31 BRK-A	$798,442	1	—	Shares	Sole	2025-05-02
2025-03-31	$11,593,734	21,769	-2.4%	Shares	Sole	2025-05-02
2024-12-31	$10,109,957	22,304	+5.6%	Shares	Sole	2025-01-24
2024-09-30	$9,725,754	21,131	-9.9%	Shares	Sole	2024-11-04
2024-06-30	$9,538,239	23,447	-0.6%	Shares	Sole	2024-08-01
2024-03-31	$9,916,702	23,582	+5.7%	Shares	Sole	2024-04-30
2023-12-31	$7,959,581	22,317	+7.5%	Shares	Sole	2024-01-25
2023-09-30	$7,272,928	20,762	-1.8%	Shares	Sole	2023-10-26
2023-06-30	$7,209,763	21,143	+1.5%	Shares	Sole	2023-07-28
2023-03-31	$6,433,222	20,835	-0.8%	Shares	Sole	2023-04-28
2022-12-31	$6,485,973	20,997	-5.9%	Shares	Sole	2023-01-19
2022-09-30	$5,959,619	22,319	-0.5%	Shares	Sole	2022-11-03
2022-06-30	$6,124,111	22,431	+3.0%	Shares	Sole	2022-07-29
2022-03-31	$7,684,615	21,775	+1.3%	Shares	Sole	2022-05-09
2021-12-31	$6,429,696	21,504	-6.2%	Shares	Sole	2022-02-02
2021-09-30	$6,259,605	22,934	-2.2%	Shares	Sole	2021-11-12
2021-06-30	$6,517,224	23,450	-3.5%	Shares	Sole	2021-08-10
2021-03-31	$6,206,132	24,293	+1.8%	Shares	Sole	2021-05-10
2020-12-31	$5,532,650	23,861	-4.7%	Shares	Sole	2021-02-09
2020-09-30	$5,329,462	25,028	+0.0%	Shares	Sole	2020-10-20
2020-06-30	$4,466,498	25,021	-0.8%	Shares	Sole	2020-07-27
2020-03-31	$4,611,521	25,223	—	Shares	Sole	2020-04-17
No filing history on record for this holder in this stock.