# High Frequency Holdings, LLC — Form D/A

High Frequency Holdings, LLC of AUSTIN, TX, a company, filed a Form D amendment with the SEC on 2026-03-16. The offering totals $16.0M, of which $16.0M was reported sold. Industry: Other.

## Offering

- Filed: 2026-03-16
- Form: D/A
- Accession: 0001925276-26-000004
- Industry: Other
- Exemptions: 06b
- Total offering: $16.0M
- Amount sold: $16.0M
- Investors: 7
- Date of first sale: 2022-04-14
- Security types: equity
- Revenue range: Decline to Disclose
- SEC file number: 021-443773

## Issuer

- Name: High Frequency Holdings, LLC
- CIK: 0001925276
- Entity type: Limited Liability Company
- Jurisdiction: TEXAS
- Incorporated: 2021
- Address: 638 TILLERY STREET, AUSTIN, TX, 78702
- Phone: 310-593-4170

## Officers, directors & promoters (6)

| Name | Role | Location |
| --- | --- | --- |
| Duncan Montgomery | Related Person | Austin, TX |
| Jack Selby | Related Person | Paradise Valley, AZ |
| Duncan Montgomery | Executive Officer | Austin, TX |
| Duncan Montgomery | Promoter | Austin, TX |
| Jack Selby | Executive Officer | Paradise Valley, AZ |
| Jack Selby | Promoter | Paradise Valley, AZ |

## Other filings by this issuer (5)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2026-03-16](https://search.stillhousedata.com/formd/0001925276-26-000003) | D/A | $16.0M | $7.0M |
| [2024-02-06](https://search.stillhousedata.com/formd/0001925276-24-000002) | D/A | $16.0M | $9.0M |
| [2024-02-06](https://search.stillhousedata.com/formd/0001925276-24-000001) | D/A | $16.0M | $9.0M |
| [2022-05-04](https://search.stillhousedata.com/formd/0001925276-22-000002) | D/A | $16.0M | $7.0M |
| [2022-04-28](https://search.stillhousedata.com/formd/0001925276-22-000001) | D | $16.0M | $7.0M |

## More

- [CIK 1925276 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1925276&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001925276-26-000004.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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