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Personal wealth note: Equibles reports source-backed professional activity and disclosed compensation; it does not estimate personal net worth.

About John Klein

John Klein is recorded as CEO at New Mountain Finance Corp (NMFC). John Klein has spoken on 4 earnings calls across 1 company, most recently for New Mountain Finance Corp on May 5, 2026.

Summary generated from SEC filings and earnings-call records held by Equibles.

Affiliation history

Recorded current and former roles; source labels appear when available.

Company network

Recorded roles and call appearances connecting this person to public companies.

Leadership on record at New Mountain Finance Corp

Other people whose current roles at this company are on record from its filings.

Recent activity

Earnings-call and investor-event appearances, plus filed executive appointments or departures, newest first.