AVANTOR INC

Ticker: AVTR CUSIP: 05352A100 Class: EQTY

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2025

Shares 2,998 Value ($000) $40 Avg Close $13.68 Range $11.82 - $16.29

Q3 2024

Shares 4,639 Value ($000) $120 Avg Close $24.55 Range $20.49 - $28.00

Q2 2024

Shares 13,617 Value ($000) $289 Avg Close $24.08 Range $20.98 - $26.11

Q1 2024

Shares 34,477 Value ($000) $882 Avg Close $23.79 Range $21.25 - $26.16

Q4 2022

Shares 5,498 Value ($000) $116 Avg Close $20.70 Range $17.91 - $23.00

Q2 2020

Shares 5,639 Value ($000) $96 Avg Close $16.28 Range $11.51 - $19.50

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	2,998	$40	$13.68	$11.82 - $16.29
Q3 2024	4,639	$120	$24.55	$20.49 - $28.00
Q2 2024	13,617	$289	$24.08	$20.98 - $26.11
Q1 2024	34,477	$882	$23.79	$21.25 - $26.16
Q4 2022	5,498	$116	$20.70	$17.91 - $23.00
Q2 2020	5,639	$96	$16.28	$11.51 - $19.50