AVANTOR INC

Ticker: AVTR CUSIP: 05352A100 Class: EQTY

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2020

Shares 100,310 Value ($000) $2,824 Avg Close $25.77 Range $21.75 - $28.98

Q3 2020

Shares 110,515 Value ($000) $2,485 Avg Close $20.79 Range $16.91 - $23.38

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	100,310	$2,824	$25.77	$21.75 - $28.98
Q3 2020	110,515	$2,485	$20.79	$16.91 - $23.38