---
title: "Hack Fund IV-B Feeder LP SEC filings"
url: https://altstreet.investments/edgar/2086708
kind: edgar-entity
updated: 2026-11-04
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.
---

# Hack Fund IV-B Feeder LP: SEC filings and what they report

Hack Fund IV-B Feeder LP is a Cayman Islands-domiciled feeder fund structured as a pooled investment vehicle, filed as an amended Form D by Hack Fund IV GP LLC with promoter Alexander Pack. The filing reports $58.9M raised from 20 investors under Rule 506(b) and Section 3(c) exemptions; minimum investment and first sale date are not disclosed on the filing.

| Field | Value |
| --- | --- |
| Entity | Hack Fund IV-B Feeder LP |
| CIK | 2086708 |
| Filing family | 506(b), 3(c) |
| Entity type | feeder fund |
| Manager (as filed) | Hack VC |
| Newest fact-bearing filing | November 3, 2026, accession 0001470831-26-000978 |
| Total sold (as reported) | $58,850,000 |
| Investors (as reported) | 20 |
| Vintage | 2026 |

## Related persons (Form D Item 3)

| Name | Relationship |
| --- | --- |
| N/A HACK FUND IV GP LLC | Promoter |
| ALEXANDER PACK | Promoter |


## Filings (1 on record, newest first)

| Date | Form | Family | SEC link |
| --- | --- | --- | --- |
| November 3, 2025 | D | Form D | https://www.sec.gov/Archives/edgar/data/2086708/000147083125000286/ |


## More

- Entity page (HTML, with events, parties and the platform record): https://altstreet.investments/edgar/2086708
- SEC EDGAR filing index: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002086708&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/2086708
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.