CHARLES RIV LABS INTL INC

Ticker: CRL CUSIP: 159864107 Class: EQTY

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

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

Q2 2022

Shares 1,102 Value ($000) $236 Avg Close $244.35 Range $203.37 - $308.15

Q1 2022

Shares 1,301 Value ($000) $369 Avg Close $308.36 Range $251.30 - $376.78

Q4 2021

Shares 770 Value ($000) $290 Avg Close $388.52 Range $347.74 - $449.34

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	1,102	$236	$244.35	$203.37 - $308.15
Q1 2022	1,301	$369	$308.36	$251.30 - $376.78
Q4 2021	770	$290	$388.52	$347.74 - $449.34