BERKSHIRE HATHAWAY INC DEL

Ticker: BRK/A CUSIP: 084670108 Class: CL A

Spinnaker Investment Group, LLC's Holding History (CIK: 0001911067)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 33 Value ($000) $24,908 Avg Close $746423.56 Range $710000.00 - $775000.00

Q3 2025

Shares 33 Value ($000) $24,889 Avg Close $726917.40 Range $685150.00 - $760837.00

Q2 2025

Shares 36 Value ($000) $26,237 Avg Close $761794.56 Range $695517.00 - $812855.00

Q1 2025

Shares 36 Value ($000) $28,744 Avg Close $729330.75 Range $660640.00 - $806024.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	33	$24,908	$746423.56	$710000.00 - $775000.00
Q3 2025	33	$24,889	$726917.40	$685150.00 - $760837.00
Q2 2025	36	$26,237	$761794.56	$695517.00 - $812855.00
Q1 2025	36	$28,744	$729330.75	$660640.00 - $806024.00