# 28bio, Inc. — Form D/A

28bio, Inc. of METAIRIE, LA, a company, filed a Form D amendment with the SEC on 2026-01-27. The offering totals $7.0M, of which $6.5M was reported sold. Industry: Biotechnology.

## Offering

- Filed: 2026-01-27
- Form: D/A
- Accession: 0001769360-26-000002
- Industry: Biotechnology
- Exemptions: 06b
- Total offering: $7.0M
- Amount sold: $6.5M
- Remaining: $475K
- Investors: 8
- Date of first sale: 2025-05-21
- Security types: equity
- Revenue range: Decline to Disclose
- SEC file number: 021-549709

## Issuer

- Name: 28bio, Inc.
- CIK: 0001769360
- Entity type: Corporation
- Jurisdiction: DELAWARE
- Incorporated: 2018
- Address: 4224 HOUMA BLVD., SUITE 224, METAIRIE, LA, 70006
- Phone: 504-407-7419

## Officers, directors & promoters (21)

| Name | Role | Location |
| --- | --- | --- |
| Michael Katz | Related Person | Metairie, LA |
| Miklos Kobor | Related Person | Metairie, LA |
| Dale Pfost | Related Person | LONG ISLAND CITY, NY |
| Alif Saleh | Related Person | Metairie, LA |
| David Weiner | Related Person | Metairie, LA |
| Miklos Kobor | Director | Metairie, LA |
| Dale Pfost | Director | LONG ISLAND CITY, NY |
| Alif Saleh | Director | Metairie, LA |
| Alif Saleh | Executive Officer | Metairie, LA |
| Michael Katz | Director | Metairie, LA |
| David Weiner | Director | Metairie, LA |
| J. Lowry Curley | Director | New Orleans, LA |
| J. Lowry Curley | Executive Officer | New Orleans, LA |
| Michael Moore | Director | SAN FRANCISCO, CA |
| Michael Moore | Executive Officer | SAN FRANCISCO, CA |
| Jeffrey Silverman | Director | Norwood, NJ |
| Benjamin Cappiello | Executive Officer | New Orleans, LA |
| Monica Metea | Executive Officer | New Orleans, LA |
| Thomas Hartung | Executive Officer | New Orleans, LA |
| Lowry Curley | Director | New Orleans, LA |
| Lowry Curley | Executive Officer | New Orleans, LA |

## Other filings by this issuer (5)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2025-06-24](https://search.stillhousedata.com/formd/0001769360-25-000001) | D | $5.0M | $1.8M |
| [2024-11-22](https://search.stillhousedata.com/formd/0001769360-24-000003) | D | $4.8M | $3.7M |
| [2021-06-10](https://search.stillhousedata.com/formd/0001769360-21-000001) | D/A | $6.1M | $6.1M |
| [2020-06-15](https://search.stillhousedata.com/formd/0001769360-20-000001) | D | $3.8M | $2.0M |
| [2019-03-05](https://search.stillhousedata.com/formd/0001769360-19-000001) | D | $2.5M | $1.1M |

## More

- [CIK 1769360 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1769360&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001769360-26-000002.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.
