New Mountain Capital’s Avantor AVTR Stock Holding History

New Mountain Capital’s Portfolio AVTR Stock Details AVTR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$139M	Hold	14,000,000	–	–	100%	1
2026 Q1	$110M	Hold	14,000,000	–	–	100%	1
2025 Q4	$160M	Hold	14,000,000	–	–	100%	1
2025 Q3	$175M	Hold	14,000,000	–	–	100%	1
2025 Q2	$188M	Hold	14,000,000	–	–	100%	1
2025 Q1	$227M	Hold	14,000,000	–	–	100%	1
2024 Q4	$295M	Hold	14,000,000	–	–	100%	1
2024 Q3	$362M	Hold	14,000,000	–	–	21.2%	2
2024 Q2	$297M	Hold	14,000,000	–	–	19.92%	2
2024 Q1	$358M	Hold	14,000,000	–	–	22.74%	2
2023 Q4	$320M	Hold	14,000,000	–	–	21.82%	2
2023 Q3	$295M	Hold	14,000,000	–	–	16.03%	2
2023 Q2	$288M	Hold	14,000,000	–	–	13.14%	2
2023 Q1	$296M	Hold	14,000,000	–	–	15.82%	2
2022 Q4	$295M	Hold	14,000,000	–	–	5.41%	3
2022 Q3	$274M	Buy	+14,000,000	New	+$375M	4.35%	3

Other funds holding AVTR

Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

ECM

Engine Capital Management New York $1.03B AUM 4.33% 1-Year Est. Return

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

New Mountain Capital's AVTR Position: Q2 2026 in Review

New Mountain Capital held its Avantor (AVTR) position steady in Q2 2026 at 14,000,000 shares worth $139M. The position accounts for 100% of the portfolio, ranked #1.

New Mountain Capital first reported a position in AVTR in Q3 2022 and has held it in 16 quarters since. The position peaked at $362M in Q3 2024. 457 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

New Mountain Capital held 14,000,000 shares of Avantor worth $139M as of Q2 2026.
New Mountain Capital left its Avantor share count unchanged in Q2 2026.
Avantor made up 100% of New Mountain Capital's portfolio in Q2 2026, its #1 holding.
New Mountain Capital first reported a position in Avantor in Q3 2022 and has held it in 16 quarters since.
New Mountain Capital's Avantor position peaked at $362M in Q3 2024.
457 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on New Mountain Capital's 13F filing for Q2 2026, filed 14 Aug 2026.