New Mountain Guardian IV Rated Feeder III, Ltd. - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
New Mountain Guardian IV Rated Feeder III, Ltd. is a corporate entity tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $164.81M.
Profile
New Mountain Guardian IV Rated Feeder III, Ltd. is a corporate entity that reports beneficial ownership of shares in New Mountain Guardian IV BDC, L.L.C. and 1 other company under U.S. securities law. It has submitted 10 SEC insider filings since 2024, most recently in December 2025.
| Filer type | Company |
|---|---|
| Role | 10% Owner |
| Notability | 20/100 |
Board memberships
- New Mountain Guardian IV BDC, L.L.C.
- New Mountain Guardian IV Income Fund, L.L.C.
Reported roles
- 10% Owner
- 10% Owner
Trading Pattern
InsiderAlpha's records for New Mountain Guardian IV Rated Feeder III, Ltd. go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. The typical open-market purchase is $32.96M (5 buys totaling $164.81M). No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-12-17 | - | New Mountain Guardian IV BDC, L.L.C. | P - Open-market purchase | 3.33M | $10.00 | $33.29M |
| 2025-12-03 | - | New Mountain Guardian IV Income Fund, L.L.C. | P - Open-market purchase | 1.50M | $10.00 | $15.00M |
| 2025-12-03 | - | New Mountain Guardian IV BDC, L.L.C. | P - Open-market purchase | 5.99M | $10.00 | $59.92M |
| 2025-09-16 | - | New Mountain Guardian IV BDC, L.L.C. | P - Open-market purchase | 1.66M | $10.00 | $16.65M |
| 2024-12-10 | - | New Mountain Guardian IV BDC, L.L.C. | P - Open-market purchase | 3.99M | $10.00 | $39.95M |
Most Active Insiders Right Now
New Mountain Guardian IV Rated Feeder III, Ltd. has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Nexus Capital Management LP
- NEXUS SPECIAL SITUATIONS III, L.P.
- Novo Holdings A/S
- William O'Dowd IV
- Eric L. Oliver
- Opaleye Management Inc.
- ORBIMED ADVISORS LLC
- Stephen G. Pagliuca
Frequently Asked Questions
What is New Mountain Guardian IV Rated Feeder III, Ltd.?
New Mountain Guardian IV Rated Feeder III, Ltd. is a corporate entity that reports beneficial ownership of shares in New Mountain Guardian IV BDC, L.L.C. and 1 other company under U.S. securities law. It has submitted 10 SEC insider filings since 2024, most recently in December 2025.…
Has New Mountain Guardian IV Rated Feeder III, Ltd. been buying or selling stock?
Recorded transactions: 5 open-market purchases ($164.81M) and 0 open-market sales across all tracked filings.
Where can I see all of New Mountain Guardian IV Rated Feeder III, Ltd.'s SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live New Mountain Guardian IV Rated Feeder III, Ltd. profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.