BLACKROCK INC

Ticker: BLK CUSIP: 09290D101 Class: Common Stock

OBSIDIAN CIO, LLC's Holding History (CIK: 0001843581)

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

Q4 2025

Shares 29 Value ($000) $31 Avg Close $1089.41 Range $985.78 - $1214.03

Q3 2025

Shares 284 Value ($000) $331 Avg Close $1108.77 Range $1023.93 - $1177.77

Q2 2025

Shares 309 Value ($000) $324 Avg Close $933.09 Range $762.34 - $1044.14

Q1 2025

Shares 260 Value ($000) $246 Avg Close $961.85 Range $885.02 - $1062.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	29	$31	$1089.41	$985.78 - $1214.03
Q3 2025	284	$331	$1108.77	$1023.93 - $1177.77
Q2 2025	309	$324	$933.09	$762.34 - $1044.14
Q1 2025	260	$246	$961.85	$885.02 - $1062.44