# EcoR1 Capital Offshore Fund, Ltd. — Form D/A

EcoR1 Capital Offshore Fund, Ltd. of GEORGE TOWN, GRAND CAYMAN, E9, a pooled investment fund, filed a Form D amendment with the SEC on 2023-04-21. $810.5M was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2023-04-21
- Form: D/A
- Accession: 0000935836-23-000364
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.7
- Amount sold: $810.5M
- Minimum investment: $25.0M
- Investors: 75
- Date of first sale: 2017-07-01
- Security types: equity, fund interests
- SEC file number: 021-289340

## Issuer

- Name: EcoR1 Capital Offshore Fund, Ltd.
- CIK: 0001710180
- Entity type: Other
- Jurisdiction: CAYMAN ISLANDS
- Incorporated: 2016
- Address: STONE COAST FUND SRVS LTD., C/O WALKERS, GEORGE TOWN, GRAND CAYMAN, E9, KY1-9008
- Phone: 345-769-2680

## Officers, directors & promoters (3)

| Name | Role | Location |
| --- | --- | --- |
| Brian Burkholder | Director | Grand Cayman, E9 |
| Tim Woolaver | Director | Grand Cayman, E9 |
| Cary Marr | Director | George Town, Grand Cayman, E9 |

## Other filings by this issuer (8)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2025-05-13](https://search.stillhousedata.com/formd/0000935836-25-000317) | D/A | — | $810.5M |
| [2024-05-14](https://search.stillhousedata.com/formd/0000935836-24-000384) | D/A | — | $810.5M |
| [2022-05-11](https://search.stillhousedata.com/formd/0000935836-22-000337) | D/A | — | $609.8M |
| [2021-05-27](https://search.stillhousedata.com/formd/0000935836-21-000376) | D/A | — | $332.4M |
| [2020-06-04](https://search.stillhousedata.com/formd/0000935836-20-000327) | D/A | — | $101.7M |
| [2019-06-24](https://search.stillhousedata.com/formd/0000935836-19-000350) | D/A | — | $101.2M |
| [2018-06-21](https://search.stillhousedata.com/formd/0000935836-18-000356) | D/A | — | $42.5M |
| [2017-06-23](https://search.stillhousedata.com/formd/0000935836-17-000322) | D | — | $14.5M |

## More

- [CIK 1710180 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1710180&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0000935836-23-000364.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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