---
title: "DO-0916 Fund I, a series of Companyon Sidecar, LP SEC filings"
url: https://altstreet.investments/edgar/2156628
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.
---

# DO-0916 Fund I, a series of Companyon Sidecar, LP: SEC filings and what they report

| Field | Value |
| --- | --- |
| Entity | DO-0916 Fund I, a series of Companyon Sidecar, LP |
| CIK | 2156628 |
| Filing family | Form D |
| Total offering amount (as filed) | $449,997 |
| Total sold (as reported) | $449,997 |
| Investors (as reported) | 10 |

## Filings (1 on record, newest first)

| Date | Form | Family | SEC link |
| --- | --- | --- | --- |
| October 21, 2026 | D | Form D | https://www.sec.gov/Archives/edgar/data/2156628/000215662826000001/ |


## More

- Entity page (HTML, with events, parties and the platform record): https://altstreet.investments/edgar/2156628
- SEC EDGAR filing index: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002156628&owner=include&count=40
- Signal history, evidence passages and the entity graph are AltStreet Terminal features: https://altstreet.investments/terminal

---

Source page: https://altstreet.investments/edgar/2156628
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.