New Mountain Capital, L.L.C. 13F Portfolio Snapshot

Concentrated strategySector-focused

Total reported value

$109.8M

Reporting period: 2026-03-31 · Number of holdings: 1

New Mountain Capital, L.L.C. disclosed 1 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $109.8M and a quarterly turnover rate of 37.5%.

Browse other institutions with $100M to $1B AUM Browse other institutions starting with "N"

Personality snowflake

Concentration: 100
Portfolio Stability: 37.51
Momentum/Contrarian: 50
Sector conviction: 100
Diversification: 2
Sizing Uniformity: —

Recent moves

Unchanged AVTR
0.0%　-$50.7M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change	4Q Trend
1	AVTR	Avantor INC	Stock-Healthcare	100.00%	—	—

Portfolio Performance

Performance for Q3 2026

+36.7%

Performance Last 4 Quarters

-17.6%

Stdev: +31.5%
Beta: +0.86
Alpha: -39.4%
Max Drawdown: -51.6%
Annualized Perf: -25.2%
Batting Avg vs S&P: +23.5%
Sortino: -0.9
Stutzer: -0.23
Treynor: -0.28
Sterling: -0.49
Calmar: -0.49
Information Ratio: -1.44
Tracking Error: +29.2%
Stdev Down: +26.4%
Winning Months %: +35.3%
Losing Months %: +64.7%
Best 12 Months: -17.6%
Worst 12 Months: -51.6%
Efficiency Ratio: +0.29
Sharpe: -0.76
Stdev Sectors: 0%
Skewness: -0.31
Kurtosis: -0.38
Upside Potential: +1.09

Reported value over time

Sector allocation

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2026-03-31	1	$109.8M	38	1AVTR Top holdings2026-03-31 1.AVTR
2025-12-31	1	$160.4M	9	1AVTR Top holdings2025-12-31 1.AVTR
2025-09-30	1	$174.7M	29	1AVTR Top holdings2025-09-30 1.AVTR
2025-06-30	1	$188.4M	0	1AVTR Top holdings2025-06-30 1.AVTR
2025-03-31	1	$226.9M	0	1AVTR Top holdings2025-03-31 1.AVTR
2024-12-31	1	$295.0M	0	1AVTR Top holdings2024-12-31 1.AVTR
2024-09-30	2	$1.7B	0	1RCM1USD 2AVTR Top holdings2024-09-30 1.RCM1USD 2.AVTR
2024-06-30	2	$1.5B	0	1RCM1USD 2AVTR Top holdings2024-06-30 1.RCM1USD 2.AVTR
2024-03-31	2	$1.6B	0	1RCM1USD 2AVTR Top holdings2024-03-31 1.RCM1USD 2.AVTR
2023-12-31	3	$1.5B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-12-31 1.RCM1USD 2.AVTR 3.ALIT
2023-09-30	3	$1.8B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-09-30 1.RCM1USD 2.AVTR 3.ALIT
2023-06-30	3	$2.2B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-06-30 1.RCM1USD 2.AVTR 3.ALIT
2023-03-31	3	$1.9B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-03-31 1.RCM1USD 2.AVTR 3.ALIT
2022-12-31	4	$5.5B	0	1SGFYGBP 2RCM1USD 3AVTR Top holdings2022-12-31 1.SGFYGBP 2.RCM1USD 3.AVTR 4.ALIT
2022-09-30	4	$6.3B	0	1SGFYGBP 2RCM1USD 3AVTR Top holdings2022-09-30 1.SGFYGBP 2.RCM1USD 3.AVTR 4.ALIT

Holding changes this quarter

Position changes disclosed by New Mountain Capital, L.L.C. for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	AVTR	Avantor INC	—	—	Unchanged

FAQ

What is New Mountain Capital, L.L.C. and what type of investor is it?

New Mountain Capital, L.L.C. is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $109.8M, spread across 1 disclosed positions.

What are New Mountain Capital, L.L.C.'s largest equity positions?

Based on the latest 13F filing, New Mountain Capital, L.L.C.'s top holdings by market value are: 1. Avantor INC (AVTR) — $109.8M (100.0%)

What changes did New Mountain Capital, L.L.C. make in its most recent portfolio filing?

No notable portfolio changes were recorded for New Mountain Capital, L.L.C. in the most recent quarter. Holdings appear to have remained relatively stable.

What sectors does New Mountain Capital, L.L.C. focus on?

New Mountain Capital, L.L.C. is concentrated in the following sectors based on its current disclosed equity portfolio: • Health Care: 100.0%

Peer Institutions

Institutions with a similar AUM

Bond Capital Management, LP

CIK 0001923934

Total reported value

$109.8M

4 stks

2026-03-31

Concentration100.0

Portfolio Stability14.0

Sector conviction100.0

AUM within 0.0% of this institution

View detail

SRN Advisors, LLC

CIK 0001872370

Total reported value

$109.8M

98 stks

2025-06-30

Stale — no recent filing

Concentration5.8

Portfolio Stability0.0

Sector conviction100.0

AUM within 0.0% of this institution

View detail

Nwm Advisors, LLC

CIK 0002098824

Total reported value

$109.8M

23 stks

2026-03-31

Concentration50.9

Portfolio Stability13.5

Sector conviction100.0

AUM within 0.0% of this institution

View detail

Similar Holdings Style

Institutions with overlapping top holdings

New Mountain Vantage Advisers, L.l.c.

CIK 0001388805

Total reported value

$4.3B

4 stks

2022-06-30

Stale — no recent filing

Concentration100.0

Portfolio Stability0.0

Sector conviction0.0

1 of the top 5 holdings overlap, including Avantor INC

View detail

Clarkston Capital Partners, LLC

CIK 0001562855

Total reported value

$1.3B

100 stks

2026-03-31

Concentration14.7

Portfolio Stability100.0

Sector conviction55.4

1 of the top 5 holdings overlap, including Avantor INC

View detail

Adi Capital Management LLC

CIK 0001595961

Total reported value

$17.5M

24 stks

2019-12-31

Stale — no recent filing

Concentration24.6

Portfolio Stability63.6

Sector conviction73.3

1 of the top 5 holdings overlap, including Avantor INC

View detail

New Mountain Capital, L.L.C. 13F Portfolio Snapshot

Concentrated strategySector-focused

Total reported value

$109.8M

Reporting period: 2026-03-31 · Number of holdings: 1

New Mountain Capital, L.L.C. disclosed 1 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $109.8M and a quarterly turnover rate of 37.5%.

Browse other institutions with $100M to $1B AUM Browse other institutions starting with "N"

Personality snowflake

Concentration: 100
Portfolio Stability: 37.51
Momentum/Contrarian: 50
Sector conviction: 100
Diversification: 2
Sizing Uniformity: —

Recent moves

Unchanged AVTR
0.0%　-$50.7M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change	4Q Trend
1	AVTR	Avantor INC	Stock-Healthcare	100.00%	—	—

Portfolio Performance

Performance for Q3 2026

+36.7%

Performance Last 4 Quarters

-17.6%

Stdev: +31.5%
Beta: +0.86
Alpha: -39.4%
Max Drawdown: -51.6%
Annualized Perf: -25.2%
Batting Avg vs S&P: +23.5%
Sortino: -0.9
Stutzer: -0.23
Treynor: -0.28
Sterling: -0.49
Calmar: -0.49
Information Ratio: -1.44
Tracking Error: +29.2%
Stdev Down: +26.4%
Winning Months %: +35.3%
Losing Months %: +64.7%
Best 12 Months: -17.6%
Worst 12 Months: -51.6%
Efficiency Ratio: +0.29
Sharpe: -0.76
Stdev Sectors: 0%
Skewness: -0.31
Kurtosis: -0.38
Upside Potential: +1.09

Reported value over time

Sector allocation

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2026-03-31	1	$109.8M	38	1AVTR Top holdings2026-03-31 1.AVTR
2025-12-31	1	$160.4M	9	1AVTR Top holdings2025-12-31 1.AVTR
2025-09-30	1	$174.7M	29	1AVTR Top holdings2025-09-30 1.AVTR
2025-06-30	1	$188.4M	0	1AVTR Top holdings2025-06-30 1.AVTR
2025-03-31	1	$226.9M	0	1AVTR Top holdings2025-03-31 1.AVTR
2024-12-31	1	$295.0M	0	1AVTR Top holdings2024-12-31 1.AVTR
2024-09-30	2	$1.7B	0	1RCM1USD 2AVTR Top holdings2024-09-30 1.RCM1USD 2.AVTR
2024-06-30	2	$1.5B	0	1RCM1USD 2AVTR Top holdings2024-06-30 1.RCM1USD 2.AVTR
2024-03-31	2	$1.6B	0	1RCM1USD 2AVTR Top holdings2024-03-31 1.RCM1USD 2.AVTR
2023-12-31	3	$1.5B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-12-31 1.RCM1USD 2.AVTR 3.ALIT
2023-09-30	3	$1.8B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-09-30 1.RCM1USD 2.AVTR 3.ALIT
2023-06-30	3	$2.2B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-06-30 1.RCM1USD 2.AVTR 3.ALIT
2023-03-31	3	$1.9B	0	1RCM1USD 2AVTR 3ALIT Top holdings2023-03-31 1.RCM1USD 2.AVTR 3.ALIT
2022-12-31	4	$5.5B	0	1SGFYGBP 2RCM1USD 3AVTR Top holdings2022-12-31 1.SGFYGBP 2.RCM1USD 3.AVTR 4.ALIT
2022-09-30	4	$6.3B	0	1SGFYGBP 2RCM1USD 3AVTR Top holdings2022-09-30 1.SGFYGBP 2.RCM1USD 3.AVTR 4.ALIT

Holding changes this quarter

Position changes disclosed by New Mountain Capital, L.L.C. for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	AVTR	Avantor INC	—	—	Unchanged

FAQ

What is New Mountain Capital, L.L.C. and what type of investor is it?

What are New Mountain Capital, L.L.C.'s largest equity positions?

Based on the latest 13F filing, New Mountain Capital, L.L.C.'s top holdings by market value are: 1. Avantor INC (AVTR) — $109.8M (100.0%)

What changes did New Mountain Capital, L.L.C. make in its most recent portfolio filing?

No notable portfolio changes were recorded for New Mountain Capital, L.L.C. in the most recent quarter. Holdings appear to have remained relatively stable.

What sectors does New Mountain Capital, L.L.C. focus on?

New Mountain Capital, L.L.C. is concentrated in the following sectors based on its current disclosed equity portfolio: • Health Care: 100.0%