New Mountain Finance director sells 77,500 shares

New Mountain Finance Corp director John P. Malfettone sold 77,500 shares of Common Stock in an open-market transaction.

Rhea-AI Filing Summary

New Mountain Finance Corp director John P. Malfettone sold 77,500 shares of Common Stock in an open-market transaction. The shares were sold at an average price of $7.8927 per share on 2026-06-15, reducing his directly held position in the stock to zero shares.

Insights

Insider trading analyst

Director executed an open-market sale that fully closed his direct position.

The filing shows director John P. Malfettone completed an open-market sale of 77,500 shares of New Mountain Finance Corp Common Stock at an average price of $7.8927 per share on 2026-06-15.

After the transaction, his directly owned share balance is reported as zero shares, indicating a full disposal of his direct holdings in this security. The transaction is categorized as a non-derivative open-market sale with no remaining derivative positions disclosed in this filing.

Insider Trade Summary

Net Seller: 77,500 shares

Net Sell 1 txn

Insider Malfettone John P

Role Director

Sold 77,500 shs ($612K)

Type	Security	Shares	Price	Value
Sale	Common Stock	77,500	$7.8927	$612K

Holdings After Transaction: Common Stock — 0 shares (Direct)

Key Figures

Shares sold: 77,500 shares Sale price per share: $7.8927 per share Shares held after transaction: 0 shares +1 more

4 metrics

Shares sold 77,500 shares Open-market sale of Common Stock on June 15, 2026

Sale price per share $7.8927 per share Average price for the 77,500 shares sold

Shares held after transaction 0 shares Total directly owned NMFC Common Stock after sale

Net buy/sell shares -77,500 shares Net-sell direction from transaction summary

Key Terms

open-market sale, Common Stock, non-derivative, net-sell

4 terms

open-market sale financial

"The transaction is categorized as an open-market sale of Common Stock."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"The filing reports a transaction in New Mountain Finance Corp Common Stock."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

non-derivative financial

"The transaction type is listed as non-derivative for this Common Stock sale."

net-sell financial

"The transaction summary shows a net-sell direction of -77,500 shares."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did NMFC director John P. Malfettone report?

John P. Malfettone reported an open-market sale of 77,500 shares of New Mountain Finance Corp Common Stock. The sale occurred on June 15, 2026, and was classified as a non-derivative transaction at an average price of $7.8927 per share.

How many NMFC shares did the director hold after the reported sale?

Following the reported transaction, director John P. Malfettone held zero shares of New Mountain Finance Corp Common Stock directly. The Form 4 indicates total shares following the transaction as 0.0000, reflecting a complete disposal of his directly owned position.

What was the sale price for the NMFC shares in this Form 4 filing?

The NMFC shares were sold at an average price of $7.8927 per share. This price applies to the 77,500 shares of New Mountain Finance Corp Common Stock that director John P. Malfettone sold in the open-market transaction reported in the Form 4.

Was the NMFC insider transaction in derivative or non-derivative securities?

The NMFC insider transaction involved non-derivative securities, specifically Common Stock. The Form 4 categorizes the trade as a non-derivative open-market sale, and the derivative summary section for this filing shows no derivative positions or exercises associated with this transaction.

Does the NMFC Form 4 indicate any remaining derivative holdings for the director?

The Form 4 derivative summary for NMFC lists no remaining derivative positions for the director. It reports zero derivative transactions and an empty derivativeSummary, indicating no options, warrants, or other derivative securities are disclosed in connection with this filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/16/2026 - 04:19 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Malfettone John P

(Last) (First) (Middle)

C/O NEW MOUNTAIN CAPITAL, L.L.C.

1633 BROADWAY, 48TH FLOOR

(Street)

NEW YORK NEW YORK 10019

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
New Mountain Finance Corp [ NMFC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/15/2026		S		77,500	D	$7.8927	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ John P. Malfettone	06/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)