# Day One Biopharmaceuticals Holding Co LLC — Form D

Day One Biopharmaceuticals Holding Co LLC of SOUTH SAN FRANCISCO, CA, a company, filed a Form D exempt-offering notice with the SEC on 2021-02-16. The offering totals $130.0M, of which $130.0M was reported sold. Industry: Pharmaceuticals.

## Offering

- Filed: 2021-02-16
- Form: D
- Accession: 0001845337-21-000001
- Industry: Pharmaceuticals
- Exemptions: 06b
- Total offering: $130.0M
- Amount sold: $130.0M
- Investors: 24
- Date of first sale: 2021-02-01
- Security types: equity
- Revenue range: Decline to Disclose
- SEC file number: 021-389508

## Issuer

- Name: Day One Biopharmaceuticals Holding Co LLC
- CIK: 0001845337
- Entity type: Limited Liability Company
- Jurisdiction: DELAWARE
- Incorporated: 2018
- Address: 395 OYSTER POINT BLVD STE 217, SOUTH SAN FRANCISCO, CA, 94080-1930
- Phone: 650-484-0899

## Officers, directors & promoters (8)

| Name | Role | Location |
| --- | --- | --- |
| Daniel Becker | Director | Cambridge, MA |
| Jeremy Bender | Director | South San Francisco, CA |
| Derek DiRocco | Director | Boston, MA |
| Michael Gladstone | Director | Cambridge, MA |
| Natalie Holles | Director | Berkeley, CA |
| John Josey | Director | SOUTH SAN FRANCISCO, CA |
| Julie Papanek Grant | Director | South San Francisco, CA |
| Jeremy Bender | Executive Officer | South San Francisco, CA |

## More

- [CIK 1845337 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1845337&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001845337-21-000001.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.