Rallybio Corp $RLYB
Facts as of . Built from SEC filings and our own data. Small caps move fast; check the latest filings.
Snapshot
- Exchange
- Nasdaq Capital Market
- Sector
- Pharmaceutical Preparations
- Headquarters
- New Haven, CT
- Fiscal year end
- December 31
- Shares outstanding
- 5,310,499 [10-Q 2026-08-06]
What the company doesAI summary of filing
Rallybio Corp is a clinical-stage biotechnology company developing therapies for severe and rare diseases. The company's lead program, RLYB116, is a complement component 5 inhibitor in clinical development for complement dysregulation disorders; its second program, RLYB332, is a long-acting matriptase-2 antibody in preclinical development for iron overload diseases. The company is pre-revenue and generates cash through milestone payments and royalties from asset dispositions, including a $20 million payment received in 2025 from the sale of its joint venture interest in an ENPP1 inhibitor program to Recursion. Rallybio is pursuing a merger with Candid, a clinical-stage company developing T-cell engager therapeutics for autoimmune diseases, and winding down operations not needed post-merger. [10-K 2026-03-16]
Financial health
| Period | Revenue | Net income | Operating cash flow | Cash | Filing |
|---|---|---|---|---|---|
| 6 months to Jun 2026 | $212.0K | $35.39M | $37.94M | $92.85M | [S-4/A 2026-08-26] |
| FY ended Dec 2025 | $858.0K | −$8.98M | −$29.81M | $31.37M | [S-4/A 2026-08-26] |
| FY ended Dec 2024 | $636.0K | −$57.77M | −$49.28M | $13.90M | [S-4/A 2026-08-26] |
Capital structure and dilution
| Date | Shares outstanding | Filing |
|---|---|---|
| 2024-11-04 | 41,487,586 | [10-Q 2024-11-07] |
| 2025-03-07 | 41,612,039 | [10-K 2025-03-13] |
| 2025-05-02 | 41,613,964 | [10-Q 2025-05-08] |
| 2025-08-01 | 41,786,471 | [10-Q 2025-08-07] |
| 2025-10-31 | 42,243,774 | [10-Q 2025-11-06] |
| 2026-03-06 | 5,289,675 | [10-K 2026-03-16] |
| 2026-05-08 | 5,298,137 | [10-Q 2026-05-13] |
| 2026-07-30 | 5,310,499 | [10-Q 2026-08-06] |
- Shelf registration
- S-3 filed 2024-05-10; declared effective 2024-05-20 [S-3 2024-05-10]
Listing status
Current status: 2 Form 8-K Item 3.01 filing(s) in the last 24 months, most recent 2025-08-29. Item 3.01 covers delisting notices, failures to meet a listing rule and listing transfers; read the filing for which one.
| Date | Event | Details | Deadline | Filing |
|---|---|---|---|---|
| 2025-08-29 | 8-K Item 3.01 | Notice of delisting or failure to satisfy a continued listing rule or standard; or transfer of listing | — | [8-K 2025-08-29] |
| 2025-02-25 | 8-K Item 3.01 | Notice of delisting or failure to satisfy a continued listing rule or standard; or transfer of listing | — | [8-K 2025-02-25] |
Who owns it
| Date | Insider | Type | Shares | Price | Filing |
|---|---|---|---|---|---|
| 2026-10-06 | Uden Stephen | exercise | 22,456 | $6.08 | [4 2026-10-08] |
| 2026-09-29 | Lieber Jonathan I | exercise | 5,000 | $6.08 | [4 2026-10-01] |
| 2026-09-24 | Liu Hui | exercise | 3,562 | $2.38 | [4 2026-09-28] |
| 2026-09-24 | Liu Hui | exercise | 8,482 | $7.60 | [4 2026-09-28] |
| 2026-09-16 | Chung Wendy | exercise | 3,562 | $2.38 | [4 2026-09-18] |
| 2026-07-06 | Boudreau Helen M | exercise | 3,562 | $2.38 | [4 2026-07-10] |
| 2026-05-19 | Adar1 Capital Management, Llc | buy | 10,000 | $13.98 | [4 2026-05-20] |
| 2026-05-19 | Adar1 Capital Management, Llc | buy | 200 | $13.80 | [4 2026-05-20] |
| 2026-05-18 | Adar1 Capital Management, Llc | buy | 6,009 | $13.98 | [4 2026-05-20] |
| 2026-05-15 | Adar1 Capital Management, Llc | buy | 100 | $13.80 | [4 2026-05-15] |
| 2026-05-15 | Adar1 Capital Management, Llc | buy | 200 | $13.95 | [4 2026-05-15] |
| 2026-05-13 | Adar1 Capital Management, Llc | buy | 4,081 | $13.80 | [4 2026-05-15] |
Catalysts and calendar
| Date | Type | Title |
|---|---|---|
| 2026-09-09 | 8-K | Director or officer change |
| 2026-08-14 | 13G/A | Beneficial ownership report (5%+ holder) |
| 2026-08-14 | 13G/A | Beneficial ownership report (5%+ holder) |
| 2026-08-14 | 13G/A | Beneficial ownership report (5%+ holder) |
| 2026-08-06 | 13G/A | Beneficial ownership report (5%+ holder) |
| 2026-08-06 | 10-Q | Quarterly report |
| 2026-08-04 | 13G/A | Beneficial ownership report (5%+ holder) |
| 2026-06-05 | 13G | Beneficial ownership report (5%+ holder) |
| 2026-06-01 | 8-K | Material agreement entered; Unregistered sale of equity; Change in control |
| 2026-05-15 | 13G/A | Beneficial ownership report (5%+ holder) |
| 2026-05-15 | 13G | Beneficial ownership report (5%+ holder) |
| 2026-05-15 | 13G | Beneficial ownership report (5%+ holder) |
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Facts as of . Small caps move fast; check the latest filings.