New Mountain Finance Corporation (NMFC)
Nasdaq: NMFC · New York, NY · filing with the SEC since 2010
Who owns New Mountain Finance Corporation
As filed with the SECHolders of 5% or more
1
Klinsky Steven B holds 12.5% of Common Stock, par value $0.01 per share, as its SCHEDULE 13D/A filed Mar 12, 2026 says.
Directors and officers
7
report now, of 20 people on the record since 2011. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Klinsky Steven B
SCHEDULE 13D/A · filed Mar 12, 2026 · Common Stock, par value $0.01 per share · 11% in Mar 3, 2026
What NMFC reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
New Mountain Finance SBIC II, L.P.
An entity · legal entity · owns, named in the 10-K filed Feb 24, 2026
New Mountain Finance SBIC III, L.P.
An entity · legal entity · owns, named in the 10-K filed Feb 24, 2026
New Mountain Finance SBIC, L.P.
An entity · legal entity · owns, named in the 10-K filed Feb 24, 2026
SkyKnight Income Alpha, LLC
An entity · legal entity · owns, named in the 10-K filed Feb 24, 2026
SkyKnight Income II, LLC
An entity · legal entity · owns, named in the 10-K filed Feb 24, 2026
NMFC Senior Loan Program III LLC
An investee · nonconsolidated subsidiary · invested in, named in the 10-K filed Feb 24, 2026
NMFC Senior Loan Program IV LLC
An investee · nonconsolidated subsidiary · invested in, named in the 10-K filed Feb 24, 2026
Insider tradesForm 4
1sales
20purchases
0sales on a scheduled plan
1people selling
$600,000sold, in dollars
$12.6Mbought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 20 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Malfettone John P | director | 1 | $600,000 | 0 | 0 | $0 |
| Klinsky Steven B | director | 0 | $0 | 0 | 14 | $12.0M |
| Weinstein Adam | EVP, CAO and Director | 0 | $0 | 0 | 3 | $400,000 |
| Ogens David | director | 0 | $0 | 0 | 2 | $100,000 |
| Boswerger Laura Holson | COO | 0 | $0 | 0 | 1 | $100,000 |