---
title: "New Mountain Guardian III BDC, L.L.C. SEC filings"
url: https://altstreet.investments/edgar/1781870
kind: edgar-entity
publisher: AltStreet (https://altstreet.investments)
license: Public factual pages may be read, quoted and cited with attribution and a link. Bulk redistribution is not permitted.
---

# New Mountain Guardian III BDC, L.L.C.: SEC filings and what they report

| Field | Value |
| --- | --- |
| Entity | New Mountain Guardian III BDC, L.L.C. |
| CIK | 1781870 |
| Filing family | Form 15 / Schedule TO |

## Filings (4 on record, newest first)

| Date | Form | Family | SEC link |
| --- | --- | --- | --- |
| December 19, 2024 | 15-12G | Form 15 / Schedule TO | https://www.sec.gov/Archives/edgar/data/1781870/000162828024052092/ |
| July 23, 2021 | D/A | Form D | https://www.sec.gov/Archives/edgar/data/1781870/000178187021000006/ |
| July 13, 2020 | D/A | Form D | https://www.sec.gov/Archives/edgar/data/1781870/000178187020000006/ |
| July 12, 2019 | D | Form D | https://www.sec.gov/Archives/edgar/data/1781870/000178187019000001/ |


## More

- Entity page (HTML, with events, parties and the platform record): https://altstreet.investments/edgar/1781870
- SEC EDGAR filing index: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001781870&owner=include&count=40
- Signal history, evidence passages and the entity graph are AltStreet Terminal features: https://altstreet.investments/terminal

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Source page: https://altstreet.investments/edgar/1781870
Machine index: https://altstreet.investments/llms.txt
AltStreet reads what platforms, funds and issuers file with the SEC and what they tell investors, and publishes the difference. Figures are as filed or as captured on the date stated; nothing here is investment advice.