---
title: "Star Mountain U.S. Lower Middle-Market Secondary Fund III, LP SEC filings"
url: https://altstreet.investments/edgar/2048428
kind: edgar-entity
updated: 2026-08-05
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.
---

# Star Mountain U.S. Lower Middle-Market Secondary Fund III, LP: SEC filings and what they report

Star Mountain U.S. Lower Middle-Market Secondary Fund III, LP is a Delaware pooled investment fund that has raised $96.9M from 29 investors under Rule 506(b) and Section 3(c) exemptions. This amended filing was submitted on December 29, 2025, by Star Mountain Fund Management, LLC and related entities; no minimum investment is disclosed on the filing.

| Field | Value |
| --- | --- |
| Entity | Star Mountain U.S. Lower Middle-Market Secondary Fund III, LP |
| CIK | 2048428 |
| Filing family | 506(b), 3(c) |
| Entity type | fund vehicle |
| Manager (as filed) | Star Mountain |
| Newest fact-bearing filing | December 29, 2025, accession 0001012975-25-000980 |
| Total sold (as reported) | $96,945,000 |
| Investors (as reported) | 29 |
| Vintage | 2025 |

## Related persons (Form D Item 3)

| Name | Relationship |
| --- | --- |
| N/A Star Mountain U.S. Lower Middle-Market Secondary Fund III GP, LLC | Executive Officer |
| N/A Star Mountain Fund Management, LLC | Executive Officer |
| Brett Hickey | Executive Officer |


## Filings (2 on record, newest first)

| Date | Form | Family | SEC link |
| --- | --- | --- | --- |
| December 29, 2025 | D/A | Form D | https://www.sec.gov/Archives/edgar/data/2048428/000101297525000980/ |
| December 17, 2024 | D | Form D | https://www.sec.gov/Archives/edgar/data/2048428/000101297524000527/ |


## More

- Entity page (HTML, with events, parties and the platform record): https://altstreet.investments/edgar/2048428
- SEC EDGAR filing index: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002048428&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/2048428
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.