Security key
647551100
New Mountain Finance Corp - Common Stock, par value $0.01 per share (NMFC)
CUSIP: 647551100
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Total 13F shares
- 27,805,274
- Total 13F value
- $215,792,301
- Share change
- -5,900,468
- SEC-reported price per share
- $7.76
- Number of holders
- 155
- Value change
- -$51,017,817
- Number of buys
- 59
- Number of sells
- 89
- Shares outstanding
- 98,483,657
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
155
Top holders
10
NMFC full security history
Ownership snapshot
Full 13F holder table
New Mountain Finance Corp SEC filings
New Mountain Finance Corp company facts
Broader feeds
Ownership snapshot
Top reported holders of NMFC - New Mountain Finance Corp - Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Steven B. Klinsky
Disclosed value leader
Steven B. Klinsky
Comparable rows
15/15
Latest evidence
17 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 13%
13D/G row: Steven B. Klinsky
Showing 1-6 of 15 holder rows.
Quick read
Steven B. Klinsky leads the comparable SEC ownership view at 13%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Steven B. Klinsky's linked filing trail.
Comparable ownership
Top 5
Steven B. Klinsky
13%
Adam B. Weinstein
0.76%
David Ogens
0.26%
Laura C. Holson Boswerger
0.08%
Kris Corbett
0.01%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Steven B. Klinsky |
13D/G
3/4/5
KLINSKY STEVEN B · Director, 10%+ Owner
|
13%
|
$103,819,896
12,330,154 shares
|
+$9,895,799 | 10 Mar 2026 |
| Adam B. Weinstein |
3/4/5
EVP, CAO and Director, Director
|
0.76%
|
$5,720,113
751,756 shares
|
+$920,685 | 17 Mar 2026 |
| David Ogens |
3/4/5
Director
|
0.26%
|
$2,033,350
257,556 shares
|
+$98,351 | 03 Mar 2026 |
| Laura C. Holson Boswerger |
3/4/5
COO
|
0.08%
|
$627,169
81,030 shares
|
+$96,750 | 27 Feb 2026 |
| Kris Corbett |
3/4/5
CFO and Treasurer
|
0.01%
|
$98,828
9,750 shares
|
— | 07 Aug 2025 |
| LSV ASSET MANAGEMENT |
13F
Company
|
3%
|
$27,508,000
2,986,718 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
155
Shares
27,805,274
Rows available
155
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
155
Q1 2026 holders
155
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|