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 |
|---|---|---|---|
| 4 | Insider transaction | Nov 5, 2026 | Nov 4, 2026 |
| 4 | Insider transaction | Nov 5, 2026 | Nov 4, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
Nov 4, 2026 | Nov 4, 2026 |
| 4 | Insider transaction | Nov 3, 2026 | Nov 2, 2026 |
| 4 | Insider transaction | Nov 2, 2026 | Oct 29, 2026 |
| 4 | Insider transaction | Nov 2, 2026 | Oct 29, 2026 |
| 4 | Insider transaction | Oct 30, 2026 | Oct 28, 2026 |
| 4 | Insider transaction | Oct 29, 2026 | Oct 27, 2026 |
| 4 | Insider transaction | Oct 28, 2026 | Oct 26, 2026 |
| 4 | Insider transaction | Oct 28, 2026 | Oct 26, 2026 |
| 10-Q | Quarterly report | Oct 27, 2026 | Sep 30, 2026 |
| 425 | Filing | Oct 26, 2026 | — |
| 8-K |
Current report
Other events
|
Oct 26, 2026 | Oct 25, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Oct 16, 2026 |
| 4 | Insider transaction | Oct 20, 2026 | Oct 16, 2026 |
| EFFECT | Filing | Oct 15, 2026 | — |
| 424B3 | Prospectus | Oct 15, 2026 | — |
| S-4/A | S-4/a no. 4 | Oct 14, 2026 | — |
| 4 | Insider transaction | Oct 14, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 9, 2026 |
| 4 | Insider transaction | Oct 8, 2026 | Oct 6, 2026 |
| S-4/A | S-4/a no. 3 | Oct 5, 2026 | — |
| 4 | Insider transaction | Oct 1, 2026 | Sep 29, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 24, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| S-4/A | S-4/a no. 2 | Sep 16, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Sep 9, 2026 | Sep 8, 2026 |
| S-4/A | Filing | Aug 26, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2026 | — |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 4, 2026 | — |
| S-4 | Registration for a merger or exchange | Jul 15, 2026 | — |
| 4 | Insider transaction | Jul 10, 2026 | Jul 6, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 5, 2026 | — |
| 425 | Filing | Jun 1, 2026 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change in control, Officer or director change, Regulation FD disclosure
|
Jun 1, 2026 | May 31, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| 4 | Insider transaction | May 13, 2026 | May 11, 2026 |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| 3 | Initial insider ownership | May 6, 2026 | May 4, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 6, 2026 | — |
| RW | Filing | May 5, 2026 | — |
| 8-K |
Current report
Agreement ended
|
May 4, 2026 | May 3, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| S-4/A | S-4/a no. 1 | Apr 24, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 13, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Mar 31, 2026 | Mar 31, 2026 |
| S-4 | Registration for a merger or exchange | Mar 17, 2026 | — |
| 10-K | Annual report | Mar 16, 2026 | Dec 31, 2025 |
| 3 | Initial insider ownership | Mar 10, 2026 | Mar 4, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 6, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 6, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 3, 2026 | — |
| 425 | Filing | Mar 2, 2026 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change in control, Officer or director change, Regulation FD disclosure
|
Mar 2, 2026 | Mar 1, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 27, 2026 | — |
| 4 | Insider transaction | Feb 23, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jan 29, 2026 | Jan 26, 2026 |
| DEF 14A | Proxy statement | Jan 2, 2026 | Jan 26, 2026 |
| PRE 14A | Preliminary proxy statement | Dec 23, 2025 | Jan 26, 2026 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Listing notice
|
Aug 29, 2025 | Aug 26, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Other events
|
Jul 8, 2025 | Jul 8, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 27, 2025 | Jun 25, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 16, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| S-8 | Employee stock plan registration | May 9, 2025 | — |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| 8-K |
Current report
Other events
|
Apr 8, 2025 | Apr 8, 2025 |
| DEF 14A | Proxy statement | Apr 7, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Other events
|
Mar 13, 2025 | Mar 13, 2025 |
| 424B5 | Prospectus supplement | Mar 13, 2025 | — |
| 10-K | Annual report | Mar 13, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2025 | Mar 13, 2025 |
| 8-K |
Current report
Listing notice
|
Feb 25, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 14, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 14, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| 8-K |
Current report
Officer or director change
|
Sep 17, 2024 | Sep 16, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| SC 13G | Ownership over 5% (passive) | Jul 30, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 30, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Jul 23, 2024 | Jul 23, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 21, 2024 | May 15, 2024 |
| EFFECT | Filing | May 20, 2024 | — |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| CORRESP | Letter to the SEC | May 16, 2024 | — |
| UPLOAD | Letter from the SEC | May 16, 2024 | — |
| S-3 | Shelf registration | May 10, 2024 | — |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 9, 2024 |
| D | Filing | Apr 22, 2024 | — |
| DEF 14A | Proxy statement | Apr 11, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Apr 10, 2024 | Apr 9, 2024 |
| S-8 | Employee stock plan registration | Mar 13, 2024 | — |
| 10-K | Annual report | Mar 12, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 12, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 15, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Feb 6, 2024 | Feb 6, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 2, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 20, 2023 | Dec 20, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| 10-Q | Quarterly report | Aug 8, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2023 | Aug 8, 2023 |
| 8-K |
Current report
Officer or director change
|
Jun 29, 2023 | Jun 28, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 17, 2023 |
| EFFECT | Filing | May 12, 2023 | — |
| 424B3 | Prospectus | May 12, 2023 | — |
| CORRESP | Letter to the SEC | May 11, 2023 | — |
| UPLOAD | Letter from the SEC | May 11, 2023 | — |
| S-8 | Employee stock plan registration | May 10, 2023 | — |
| S-3 | Shelf registration | May 9, 2023 | — |
| 10-Q | Quarterly report | May 9, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 9, 2023 | May 9, 2023 |
| DEF 14A | Proxy statement | Apr 10, 2023 | May 17, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| 10-K | Annual report | Mar 6, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 6, 2023 | Mar 6, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| 4 | Insider transaction | Feb 6, 2023 | Feb 6, 2023 |
| 4 | Insider transaction | Feb 6, 2023 | Feb 6, 2023 |
| 4 | Insider transaction | Feb 6, 2023 | Feb 6, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2023 | — |
| 4 | Insider transaction | Feb 1, 2023 | Feb 1, 2023 |
| 3 | Initial insider ownership | Feb 1, 2023 | Feb 1, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2023 | — |
| 8-K |
Current report
Officer or director change
|
Jan 31, 2023 | Jan 31, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2023 | — |
| 4 | Insider transaction | Jan 5, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Jan 5, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Jan 5, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Jan 5, 2023 | Jan 3, 2023 |
| 8-K |
Current report
Other events
|
Dec 1, 2022 | Nov 28, 2022 |
| 4 | Insider transaction | Nov 17, 2022 | Nov 15, 2022 |
| SC 13G | Ownership over 5% (passive) | Nov 17, 2022 | — |
| 8-K |
Current report
Material agreement, Other events
|
Nov 14, 2022 | Nov 10, 2022 |
| 424B5 | Prospectus supplement | Nov 14, 2022 | — |
| 424B5 | Prospectus supplement | Nov 10, 2022 | — |
| 10-Q | Quarterly report | Nov 7, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2022 | Nov 7, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 28, 2022 | Sep 28, 2022 |
| EFFECT | Filing | Aug 15, 2022 | — |
Showing 200 filings, the most recent 200. 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
- 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)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Merck & Co., Inc. MRK
- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
Source: SEC EDGAR filings. This is company-reported data, not investment advice.