BLACKROCK INC

Ticker: BLK CUSIP: 09290D101 Class: Common Stock

BERKSHIRE ASSET MANAGEMENT LLC/PA's Holding History (CIK: 0000949012)

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

Q3 2025

Shares 612 Value ($000) $713 Avg Close $1108.77 Range $1023.93 - $1177.77

Q2 2025

Shares 570 Value ($000) $598 Avg Close $933.09 Range $762.34 - $1044.14

Q1 2025

Shares 570 Value ($000) $529 Avg Close $961.85 Range $885.02 - $1062.44

Q4 2024

Shares 771 Value ($000) $787 Avg Close $991.05 Range $896.06 - $1060.71

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	612	$713	$1108.77	$1023.93 - $1177.77
Q2 2025	570	$598	$933.09	$762.34 - $1044.14
Q1 2025	570	$529	$961.85	$885.02 - $1062.44
Q4 2024	771	$787	$991.05	$896.06 - $1060.71