Rallybio Corp SEC filings RLYB
Rallybio Corp has 308 filings in SEC EDGAR's recent list, going back to May 7, 2018. Its latest annual report, Form 10-K, was filed on Mar 16, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 27, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (officer or director change, shareholder vote results, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B3 | Prospectus | Oct 15, 2026 | — |
| S-4/A | S-4/a no. 4 | Oct 14, 2026 | — |
| S-4/A | S-4/a no. 3 | Oct 5, 2026 | — |
| S-4/A | S-4/a no. 2 | Sep 16, 2026 | — |
| S-4/A | Filing | Aug 26, 2026 | — |
| S-4 | Registration for a merger or exchange | Jul 15, 2026 | — |
| S-4/A | S-4/a no. 1 | Apr 24, 2026 | — |
| S-4 | Registration for a merger or exchange | Mar 17, 2026 | — |
| S-8 | Employee stock plan registration | May 9, 2025 | — |
| 424B5 | Prospectus supplement | Mar 13, 2025 | — |
| S-3 | Shelf registration | May 10, 2024 | — |
| S-8 | Employee stock plan registration | Mar 13, 2024 | — |
| 424B3 | Prospectus | May 12, 2023 | — |
| S-8 | Employee stock plan registration | May 10, 2023 | — |
| S-3 | Shelf registration | May 9, 2023 | — |
| 424B5 | Prospectus supplement | Nov 14, 2022 | — |
| 424B5 | Prospectus supplement | Nov 10, 2022 | — |
| 424B5 | Prospectus supplement | Aug 15, 2022 | — |
| S-3 | Shelf registration | Aug 8, 2022 | — |
| S-8 | Employee stock plan registration | Jun 6, 2022 | — |
| S-8 | Employee stock plan registration | Aug 2, 2021 | — |
| 424B4 | Prospectus | Jul 30, 2021 | — |
| S-1MEF | Filing | Jul 28, 2021 | — |
| S-1/A | Amended registration statement | Jul 22, 2021 | — |
| S-1 | Registration statement | Jul 2, 2021 | — |
Showing 25 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.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- RLYB (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New Haven, CT
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1739410
- Former names
- Rallybio Holdings, LLC (until Jun 7, 2021)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.