---
title: "Series 66-1, a series of StartEngine Private LLC SEC filings"
url: https://altstreet.investments/edgar/2092192
kind: edgar-entity
updated: 2026-07-31
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.
---

# Series 66-1, a series of StartEngine Private LLC: SEC filings and what they report

Series 66-1, a series of StartEngine Private LLC, filed a 506(c) offering on 2025-12-01 that raised $287K from 17 investors with a $15K minimum investment. This is a Delaware-incorporated equity vehicle operating within the StartEngine pre-IPO platform, which manages 117 related EDGAR entities. The filing lists Howard Marks as a director.

| Field | Value |
| --- | --- |
| Entity | Series 66-1, a series of StartEngine Private LLC |
| CIK | 2092192 |
| Filing family | 506(c) |
| Entity type | platform company |
| Manager (as filed) | StartEngine |
| Platform | StartEngine (https://altstreet.investments/platforms/reviews/startengine) |
| Newest fact-bearing filing | December 1, 2025, accession 0002092192-25-000001 |
| Total offering amount (as filed) | $745,250 |
| Total sold (as reported) | $287,463 |
| Investors (as reported) | 17 |
| Minimum investment (as filed) | $14,998 |
| Vintage | 2025 |

## Related persons (Form D Item 3)

| Name | Relationship |
| --- | --- |
| Howard Marks | Director |


## Filings (1 on record, newest first)

| Date | Form | Family | SEC link |
| --- | --- | --- | --- |
| December 1, 2025 | D | Form D | https://www.sec.gov/Archives/edgar/data/2092192/000209219225000001/ |


## More

- Entity page (HTML, with events, parties and the platform record): https://altstreet.investments/edgar/2092192
- SEC EDGAR filing index: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002092192&owner=include&count=40
- Other issuers on StartEngine: https://altstreet.investments/deals/platform/startengine
- 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/2092192
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.