# PROOF SIDE IV, LP — Form D

PROOF SIDE IV, LP of ARLINGTON, VA, a pooled investment fund, filed a Form D exempt-offering notice with the SEC on 2025-07-02. $561K was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2025-07-02
- Form: D
- Accession: 0001966513-25-000007
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.1
- Amount sold: $561K
- Investors: 3
- Date of first sale: 2025-06-19
- Security types: fund interests
- Revenue range: Decline to Disclose
- SEC file number: 021-550553

## Issuer

- Name: PROOF SIDE IV, LP
- CIK: 0002061596
- Entity type: Limited Partnership
- Jurisdiction: DELAWARE
- Incorporated: 2024
- Address: 1550 CRYSTAL DRIVE SUITE 430, ARLINGTON, VA, 22202
- Phone: 7035634100

## Officers, directors & promoters (5)

| Name | Role | Location |
| --- | --- | --- |
| JOHN C BACKUS, JR. | Director | ARLINGTON, VA |
| THANASIS C DELISTATHIS | Director | ARLINGTON, VA |
| none C PROOF GP IV, LLC | Director | ARLINGTON, VA |
| none C PROOF MANAGEMENT, LLC | Executive Officer | ARLINGTON, VA |
| Thanasis Delistathis | Related Person | RESTON, VA |

## Other filings by this issuer (1)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2026-05-28](https://search.stillhousedata.com/formd/0002061596-26-000001) | D/A | — | $638K |

## More

- [CIK 2061596 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2061596&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001966513-25-000007.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.