KLINSKY STEVEN B 4

4 · New Mountain Finance Corp · Filed Mar 5, 2026

Insider Transaction Report

Form 4

Period: 2026-03-03

New Mountain Finance CorpNMFC

KLINSKY STEVEN B

Director10% Owner

Transactions

Purchase
Common Stock
[F2]
2026-03-03$7.94/sh+83,498$663,191→ 1,156,852 total(indirect: See Note)
Purchase
Common Stock
[F2]
2026-03-04$8.17/sh+62,301$508,818→ 1,219,153 total(indirect: See Note)
Purchase
Common Stock
[F8]
2026-03-03$7.94/sh+166,997$1,326,390→ 4,754,338 total(indirect: See Note)
Purchase
Common Stock
[F8]
2026-03-04$8.17/sh+124,604$1,017,653→ 4,878,942 total(indirect: See Note)

Holdings

Common Stock
[F1]
116,823.91
Common Stock
[F3]
(indirect: See Note)
1,020,267
Common Stock
[F4]
(indirect: See Note)
11,191
Common Stock
[F5]
(indirect: See Note)
11,175
Common Stock
[F6]
(indirect: See Note)
11,175
Common Stock
[F7]
(indirect: See Note)
11,175
Common Stock
[F9]
(indirect: See Note)
3,457,379
Common Stock
[F10]
(indirect: See Note)
855,000

Footnotes (10)

[F1]Includes shares previously acquired under the New Mountain Finance Corporation dividend reinvestment plan.
[F10]The Steven B. Klinsky 2024 Revocable Trust ("2024 Trust 3") directly owns these shares. The reporting person disclaims beneficial ownership held by 2024 Trust 3 except to the extent of his pecuniary interest therein.
[F2]The Steven B. Klinsky 2008 Long Term Trust directly owns these shares. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
[F3]The Steven B. Klinsky Non-GST Exempt Trust directly owns these shares. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
[F4]Includes (i) 16 shares held directly and (ii) 11,175 shares held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
[F5]Shares are held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
[F6]Shares are held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
[F7]Shares are held indirectly through a trust by an immediate family member of the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
[F8]The Steven B. Klinsky 2024 Revocable Trust ("2024 Trust 1") directly owns these shares. The reporting person disclaims beneficial ownership held by 2024 Trust 1 except to the extent of his pecuniary interest therein.
[F9]The Steven B. Klinsky 2024 Revocable Trust ("2024 Trust 2") directly owns these shares. The reporting person disclaims beneficial ownership held by 2024 Trust 2 except to the extent of his pecuniary interest therein.

Signature

Steven B. Klinsky|2026-03-05

Documents

1 file

4
ownership.xmlPrimary