Boundless Bio, Inc. SEC filings BOLD
Boundless Bio, Inc. has 162 filings in SEC EDGAR's recent list, going back to Mar 12, 2020. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 28, 2026 (material agreement). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B3 | Prospectus | Nov 3, 2026 | — |
| S-4/A | Filing | Nov 2, 2026 | — |
| S-4 | Registration for a merger or exchange | Oct 8, 2026 | — |
| S-3 | Shelf registration | Apr 1, 2025 | — |
| S-8 | Employee stock plan registration | Mar 28, 2024 | — |
| 424B4 | Prospectus | Mar 28, 2024 | — |
| S-1/A | Amended registration statement | Mar 21, 2024 | — |
| S-1 | Registration statement | Mar 6, 2024 | — |
Showing 8 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- BOLD (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- La Jolla, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company, Emerging growth company
- SEC CIK
- 1782303
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.