Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
5AM Ventures V, L.P. - 25 Feb 2026 SCHEDULE 13D/A Report for Rallybio Corp Common Stock, par value $0.0001 per share
- Filing manager
- 5AM Ventures V, L.P.
- Reporting owner
- Andrew J. Schwab
- Beneficially owned shares
- 291,788 shares
- Large-stake signal
-
Ownership
5.5%Beneficial ownership of this reported class.
Shares
291,788 sharesShares beneficially owned as disclosed.
Event date
25 Feb 2026Date tied to the ownership event or amendment.
Accepted by SEC
27 Feb 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 5.5%
- Shares outstanding
- 5,305,236 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 27 Feb 2026, 16:45:52 UTC
- Event date
- 25 Feb 2026
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
1 source field
Source evidence
Original filing metadata and source links for verification.
4 source fields
Key filing fact
5AM Ventures V, L.P. disclosed 5.5% ownership in Rallybio Corp Common Stock, par value $0.0001 per share on 25 Feb 2026.
Key facts
- 5AM Ventures V, L.P. filed SCHEDULE 13D/A for Rallybio Corp Common Stock, par value $0.0001 per share.
- Disclosed ownership: 5.5%.
- Date of event: 25 Feb 2026.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 27 Feb 2026, 16:45.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (7)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| 5AM Ventures V, L.P. | 2.6% | 135,319 | 0 | 135,319 | /s/ Scott M. Rocklage | By 5AM Partners V, LLC, its General Partner, By Scott M. Rocklage, Managing Member | 0001674324 |
| 5AM Partners V, LLC | 2.6% | 135,319 | 0 | 135,319 | /s/ Scott M. Rocklage | By Scott M. Rocklage, Managing Member | 0001791889 |
| 5AM Opportunities I, L.P. | 3% | 156,469 | 0 | 156,469 | /s/ Kush Parmar | By 5AM Opportunities I (GP), LLC, its General Partner, By Kush Parmar, Managing Member | 0001753000 |
| 5AM Opportunities I (GP), LLC | 3% | 156,469 | 0 | 156,469 | /s/ Kush Parmar | By Kush Parmar, Managing Member | 0001790778 |
| Andrew J. Schwab | 5.5% | 291,788 | 0 | 291,788 | /s/ Andrew J. Schwab | Andrew J. Schwab | 0001598549 |
| Kush Parmar | 5.5% | 291,788 | 0 | 291,788 | /s/ Kush Parmar | Kush Parmar | 0001664281 |
| Scott M. Rocklage | 2.6% | 135,319 | 0 | 135,319 | /s/ Scott M. Rocklage | Scott M. Rocklage | 0001219014 |
CIK / CUSIP context first