BERKSHIRE HATHAWAY INC DEL

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

Mesirow Financial Investment Management, Inc.'s Holding History (CIK: 0001469475)

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

Q4 2025

Shares 812,429 Value ($000) $408,365 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 963,896 Value ($000) $484,584 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 954,309 Value ($000) $463,571 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 942,730 Value ($000) $502,075 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 946,198 Value ($000) $428,889 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 941,726 Value ($000) $433,435 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 932,050 Value ($000) $379,172 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 928,378 Value ($000) $390,398 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 600,879 Value ($000) $209,634 Avg Close $350.99 Range $330.58 - $364.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	812,429	$408,365	$497.53	$473.15 - $516.85
Q3 2025	963,896	$484,584	$484.36	$455.19 - $507.66
Q2 2025	954,309	$463,571	$507.86	$462.10 - $542.07
Q1 2025	942,730	$502,075	$486.15	$440.10 - $537.63
Q4 2024	946,198	$428,889	$461.73	$437.90 - $491.67
Q3 2024	941,726	$433,435	$442.18	$403.82 - $484.82
Q2 2024	932,050	$379,172	$408.62	$395.66 - $424.52
Q1 2024	928,378	$390,398	$393.34	$355.94 - $430.00
Q4 2023	600,879	$209,634	$350.99	$330.58 - $364.05