United States Collective Investments

New Mountain Finance Corp (NMFC)

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New Mountain Finance Corp has seen recent insider activity characterized by a notable sale. On June 15, 2026, affiliate John P. Malfettone executed a sale of 77,500 shares valued at approximately $611,684. This follows a period of significant buying activity earlier in the year. The stock has declined 16.6% over the last 90 days.
Ticker: NMFC Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for New Mountain Finance Corp. Upgrade to see score, net flow, insiders and the full signal context.

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Sale 15 Jun 2026
Value US$446,420.58 | Price 491.66 | Shares 62,839 (-14.9%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-16 2026-06-15 S Sale
Malfettone John P
Non-Executive Director
62,839 -14.9%
491.66
US$446,421 		62,839 -14.9% 491.66 US$446,421
2026-06-15 2026-06-15 PrS Proposed sale
John P Malfettone

Affiliate
94,712
260.12
US$3,125,706 		94,712 260.12 US$3,125,706
2026-03-18 2026-03-17 B Purchase
3.4
Weinstein Adam B.

EVP, CAO and Director

Executive Director
94,421 -47.5%
340.12
US$77,772 		94,421 -47.5% 340.12 US$77,772
2026-03-12 2026-03-11 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
184,162 +3.6%
8.05
US$1,482,504 		184,162 +3.6% 8.05 US$1,482,504
2026-03-12 2026-03-11 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
92,080 +6.7%
8.05
US$741,244 		92,080 +6.7% 8.05 US$741,244
2026-03-12 2026-03-10 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
149,172 +3.0%
8.05
US$1,200,835 		149,172 +3.0% 8.05 US$1,200,835
2026-03-12 2026-03-10 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
74,586 +5.7%
8.05
US$600,417 		74,586 +5.7% 8.05 US$600,417
2026-03-06 2026-03-05 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
158,582 +3.3%
8.10
US$1,284,514 		158,582 +3.3% 8.10 US$1,284,514
2026-03-06 2026-03-05 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
79,291 +6.5%
8.10
US$642,257 		79,291 +6.5% 8.10 US$642,257
2026-03-05 2026-03-04 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
124,604 +2.6%
8.17
US$1,017,653 		124,604 +2.6% 8.17 US$1,017,653
2026-03-05 2026-03-04 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
62,301 +5.4%
8.17
US$508,818 		62,301 +5.4% 8.17 US$508,818
2026-03-05 2026-03-03 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
166,997 +3.6%
7.94
US$1,326,390 		166,997 +3.6% 7.94 US$1,326,390
2026-03-05 2026-03-03 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director Large shareholder
83,498 +7.8%
7.94
US$663,191 		83,498 +7.8% 7.94 US$663,191
2026-03-04 2026-03-03 B Purchase
3.4
Ogens David
Non-Executive Director
2,400 +1.0%
7.86
US$18,864 		2,400 +1.0% 7.86 US$18,864
2026-03-04 2026-03-03 B Purchase
3.4
Ogens David
Non-Executive Director
10,100 +4.4%
7.87
US$79,487 		10,100 +4.4% 7.87 US$79,487
2026-03-03 2026-03-02 B Purchase
3.4
Weinstein Adam B.

EVP, CAO and Director

Executive Director
3,307 +0.4%
7.73
US$25,563 		3,307 +0.4% 7.73 US$25,563
2026-03-03 2026-03-02 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
124,483 +2.8%
7.79
US$969,125 		124,483 +2.8% 7.79 US$969,125
2026-03-03 2026-03-02 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
62,242 +6.2%
7.79
US$484,566 		62,242 +6.2% 7.79 US$484,566
2026-03-03 2026-02-27 B Purchase
3.4
Weinstein Adam B.

EVP, CAO and Director

Executive Director
38,400 +5.5%
7.76
US$298,138 		38,400 +5.5% 7.76 US$298,138
2026-03-03 2026-02-27 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
92,001 +2.1%
7.69
US$707,708 		92,001 +2.1% 7.69 US$707,708
2026-03-03 2026-02-27 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
46,001 +4.8%
7.69
US$353,858 		46,001 +4.8% 7.69 US$353,858
2026-03-02 2026-02-27 B Purchase
3.4
Boswerger Laura C. Holson

COO

Officer
12,500 +18.2%
7.74
US$96,750 		12,500 +18.2% 7.74 US$96,750
2025-09-18 2025-09-16 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
85,352 +2.0%
9.78
US$834,854 		85,352 +2.0% 9.78 US$834,854
2025-09-18 2025-09-16 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
21,339 +2.3%
9.78
US$208,723 		21,339 +2.3% 9.78 US$208,723
2025-09-16 2025-09-15 B Purchase
3.4
Weinstein Adam B.

EVP, CAO and Director

Executive Director
49,750 +8.3%
10.03
US$498,828 		49,750 +8.3% 10.03 US$498,828
2025-08-12 2025-08-11 B Purchase
3.4
Ogens David
Non-Executive Director
4,000 +33.3%
10.22
US$40,880 		4,000 +33.3% 10.22 US$40,880
2025-08-12 2025-08-11 B Purchase
3.4
Ogens David
Non-Executive Director
4,000 +50.0%
10.26
US$41,028 		4,000 +50.0% 10.26 US$41,028
2025-08-12 2025-08-11 B Purchase
3.4
Ogens David
Non-Executive Director
18,000 +9.1%
10.23
US$184,140 		18,000 +9.1% 10.23 US$184,140
2025-08-11 2025-08-07 B Purchase
3.1
Corbett Kris

CFO and Treasurer

Officer
750 +8.3%
10.14
US$7,602 		750 +8.3% 10.14 US$7,602
2025-03-10 2025-03-07 B Purchase
3.4
Ogens David
Non-Executive Director
5,000 +2.6%
11.30
US$56,500 		5,000 +2.6% 11.30 US$56,500
2025-03-10 2025-03-06 B Purchase
3.4
Ogens David
Non-Executive Director
5,000 +2.7%
11.32
US$56,600 		5,000 +2.7% 11.32 US$56,600
2025-03-06 2025-03-05 B Purchase
3.4
Ogens David
Non-Executive Director
5,000 +2.8%
11.31
US$56,550 		5,000 +2.8% 11.31 US$56,550
2025-03-06 2025-03-04 B Purchase
3.4
Ogens David
Non-Executive Director
5,000 +2.9%
11.44
US$57,200 		5,000 +2.9% 11.44 US$57,200
2024-12-19 2024-12-17 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
48,187 +1.1%
11.28
US$543,752 		48,187 +1.1% 11.28 US$543,752
2024-12-19 2024-12-17 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
24,093 +2.6%
11.28
US$271,870 		24,093 +2.6% 11.28 US$271,870
2024-12-17 2024-12-16 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
60,967 +1.5%
11.74
US$715,594 		60,967 +1.5% 11.74 US$715,594
2024-12-17 2024-12-16 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
30,484 +3.4%
11.74
US$357,803 		30,484 +3.4% 11.74 US$357,803
2024-12-17 2024-12-13 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
6,034 +0.1%
11.74
US$70,830 		6,034 +0.1% 11.74 US$70,830
2024-12-17 2024-12-13 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
3,017 +0.3%
11.74
US$35,415 		3,017 +0.3% 11.74 US$35,415
2024-12-13 2024-12-12 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
11,771 +0.3%
11.74
US$138,229 		11,771 +0.3% 11.74 US$138,229
2024-12-13 2024-12-12 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
6 +0.0%
11.74
US$69 		6 +0.0% 11.74 US$69
2024-12-13 2024-12-11 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
13,213 +0.3%
11.74
US$155,184 		13,213 +0.3% 11.74 US$155,184
2024-12-13 2024-12-11 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
6,607 +0.8%
11.74
US$77,598 		6,607 +0.8% 11.74 US$77,598
2024-12-09 2024-12-06 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
11,596 +0.3%
11.74
US$136,156 		11,596 +0.3% 11.74 US$136,156
2024-12-09 2024-12-06 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
5,798 +0.7%
11.74
US$68,078 		5,798 +0.7% 11.74 US$68,078
2024-12-09 2024-12-05 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
11,082 +0.3%
11.74
US$130,127 		11,082 +0.3% 11.74 US$130,127
2024-12-09 2024-12-05 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
5,542 +0.6%
11.74
US$65,075 		5,542 +0.6% 11.74 US$65,075
2024-12-05 2024-12-03 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
4,133 +0.1%
11.75
US$48,551 		4,133 +0.1% 11.75 US$48,551
2024-12-05 2024-12-03 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
2,067 +0.2%
11.75
US$24,281 		2,067 +0.2% 11.75 US$24,281
2024-11-29 2024-11-26 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
1,600 +0.0%
11.74
US$18,790 		1,600 +0.0% 11.74 US$18,790
2024-11-29 2024-11-26 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
800 +0.1%
11.74
US$9,395 		800 +0.1% 11.74 US$9,395
2024-11-26 2024-11-22 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
24,480 +0.6%
11.71
US$286,666 		24,480 +0.6% 11.71 US$286,666
2024-11-26 2024-11-22 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
12,241 +1.4%
11.71
US$143,345 		12,241 +1.4% 11.71 US$143,345
2024-11-22 2024-11-21 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
36,118 +0.9%
11.59
US$418,506 		36,118 +0.9% 11.59 US$418,506
2024-11-22 2024-11-21 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
18,059 +2.2%
11.59
US$209,253 		18,059 +2.2% 11.59 US$209,253
2024-11-22 2024-11-20 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
23,245 +0.6%
11.51
US$267,513 		23,245 +0.6% 11.51 US$267,513
2024-11-22 2024-11-20 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
11,622 +1.4%
11.51
US$133,751 		11,622 +1.4% 11.51 US$133,751
2024-11-20 2024-11-19 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
36,541 +0.9%
11.63
US$424,866 		36,541 +0.9% 11.63 US$424,866
2024-11-20 2024-11-19 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
18,270 +2.3%
11.63
US$212,427 		18,270 +2.3% 11.63 US$212,427
2024-11-20 2024-11-18 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
30,307 +0.8%
11.52
US$349,179 		30,307 +0.8% 11.52 US$349,179
2024-11-20 2024-11-18 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
15,154 +1.9%
11.52
US$174,595 		15,154 +1.9% 11.52 US$174,595
2024-11-18 2024-11-15 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
34,505 +0.9%
11.56
US$398,781 		34,505 +0.9% 11.56 US$398,781
2024-11-18 2024-11-15 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
17,253 +2.2%
11.56
US$199,396 		17,253 +2.2% 11.56 US$199,396
2024-11-18 2024-11-14 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
30,167 +0.8%
11.55
US$348,498 		30,167 +0.8% 11.55 US$348,498
2024-11-18 2024-11-14 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
15,083 +2.0%
11.55
US$174,243 		15,083 +2.0% 11.55 US$174,243
2024-11-14 2024-11-13 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
63,461 +1.7%
11.60
US$735,868 		63,461 +1.7% 11.60 US$735,868
2024-11-14 2024-11-13 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
31,730 +4.2%
11.60
US$367,928 		31,730 +4.2% 11.60 US$367,928
2024-11-14 2024-11-12 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
38,108 +1.0%
11.41
US$434,896 		38,108 +1.0% 11.41 US$434,896
2024-11-14 2024-11-12 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
19,054 +2.6%
11.41
US$217,448 		19,054 +2.6% 11.41 US$217,448
2024-11-12 2024-11-11 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
49,907 +1.3%
11.36
US$566,844 		49,907 +1.3% 11.36 US$566,844
2024-11-12 2024-11-11 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
24,954 +3.5%
11.36
US$283,428 		24,954 +3.5% 11.36 US$283,428
2024-11-12 2024-11-08 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
38,925 +1.1%
11.26
US$438,346 		38,925 +1.1% 11.26 US$438,346
2024-11-12 2024-11-08 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
77,850 +12.2%
11.26
US$876,692 		77,850 +12.2% 11.26 US$876,692
2024-11-08 2024-11-07 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
39,907 +1.1%
11.09
US$442,609 		39,907 +1.1% 11.09 US$442,609
2024-11-08 2024-11-07 B Purchase
3.7
KLINSKY STEVEN B
Non-Executive Director
19,953 +3.2%
11.09
US$221,299 		19,953 +3.2% 11.09 US$221,299
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