BERKSHIRE HATHAWAY INC DEL

Ticker: BRK/B CUSIP: 084670702 Class: Common Stock

TANG CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001232621)

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

Q3 2025

Shares 3,250 Value ($000) $1,634 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 3,250 Value ($000) $1,579 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 4,401 Value ($000) $2,344 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 3,099 Value ($000) $1,405 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 2,079 Value ($000) $957 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 711 Value ($000) $289 Avg Close $408.62 Range $395.66 - $424.52

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	3,250	$1,634	$484.36	$455.19 - $507.66
Q2 2025	3,250	$1,579	$507.86	$462.10 - $542.07
Q1 2025	4,401	$2,344	$486.15	$440.10 - $537.63
Q4 2024	3,099	$1,405	$461.73	$437.90 - $491.67
Q3 2024	2,079	$957	$442.18	$403.82 - $484.82
Q2 2024	711	$289	$408.62	$395.66 - $424.52