BERKSHIRE HATHAWAY INC DEL

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

Aigen Investment Management, LP's Holding History (CIK: 0001741224)

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

Q3 2025

Shares 1,677 Value ($000) $843 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 5,205 Value ($000) $2,528 Avg Close $507.86 Range $462.10 - $542.07

Q2 2024

Shares 1,305 Value ($000) $531 Avg Close $408.62 Range $395.66 - $424.52

Q4 2023

Shares 733 Value ($000) $261 Avg Close $350.99 Range $330.58 - $364.05

Q4 2021

Shares 36,775 Value ($000) $10,856 Avg Close $286.41 Range $272.22 - $301.65

Q1 2021

Shares 22,736 Value ($000) $5,808 Avg Close $242.84 Range $226.10 - $267.50

Q2 2020

Shares 32,702 Value ($000) $5,838 Avg Close $182.62 Range $167.04 - $203.33

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,677	$843	$484.36	$455.19 - $507.66
Q2 2025	5,205	$2,528	$507.86	$462.10 - $542.07
Q2 2024	1,305	$531	$408.62	$395.66 - $424.52
Q4 2023	733	$261	$350.99	$330.58 - $364.05
Q4 2021	36,775	$10,856	$286.41	$272.22 - $301.65
Q1 2021	22,736	$5,808	$242.84	$226.10 - $267.50
Q2 2020	32,702	$5,838	$182.62	$167.04 - $203.33