13F

Investor

New Mountain Capital, L.L.C.

CIK 0001407718 · filed 2026-05-13 · SEC filing

13F book

$109.8M

Positions

1

Largest name

100.0%

Avantor, Inc. · AVTR

Est. mark

−$50.7M

Price effect on 1 names still held. Flow $0.
NameTickerSharesValueWeightEst. markChange
Avantor, Inc.AVTR14M$109.8M100.0%−$50.7MHeld

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.