AVANTOR INC

Ticker: AVTR CUSIP: 05352A100 Class: EQTY

Senator Investment Group LP's Holding History (CIK: 0001443689)

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

Q3 2020

Shares 586,530 Value ($000) $13,191 Avg Close $20.79 Range $16.91 - $23.38

Q2 2020

Shares 586,530 Value ($000) $9,971 Avg Close $16.28 Range $11.51 - $19.50

Q1 2020

Shares 586,530 Value ($000) $7,326 Avg Close $16.03 Range $6.66 - $19.39

Q3 2019

Shares 3,450,000 Value ($000) $50,715 Avg Close $16.94 Range $13.44 - $19.59

Q2 2019

Shares 10,250,000 Value ($000) $195,672 Avg Close $17.80 Range $14.00 - $19.20

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	586,530	$13,191	$20.79	$16.91 - $23.38
Q2 2020	586,530	$9,971	$16.28	$11.51 - $19.50
Q1 2020	586,530	$7,326	$16.03	$6.66 - $19.39
Q3 2019	3,450,000	$50,715	$16.94	$13.44 - $19.59
Q2 2019	10,250,000	$195,672	$17.80	$14.00 - $19.20