# RALLYBIO CORP COM

RALLYBIO CORP COM is a security (CUSIP 75120L209) tracked across SEC portfolio filings. 34 institutional managers reported $38.1M on Form 13F as of 2026-06-30; 3 registered fund positions totaling $3.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: RALLYBIO CORP
- Class: COM
- CUSIP: 75120L209
- Asset category: EC
- 13F holders: 34
- 13F value: $38.1M
- 13F period: 2026-06-30
- N-PORT fund positions: 3
- N-PORT value: $3.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 34 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| FMR LLC | BOSTON, MA | $7.1M | 793,451 |
| [VIKING GLOBAL INVESTORS LP](https://search.stillhousedata.com/firm/132272) | STAMFORD, CT | $4.7M | 524,347 |
| [Cormorant Asset Management, LP](https://search.stillhousedata.com/firm/167820) | BOSTON, MA | $3.6M | 400,000 |
| [TPG GP A, LLC](https://search.stillhousedata.com/firm/124153) | Fort Worth, TX | $3.4M | 378,551 |
| [Balyasny Asset Management L.P.](https://search.stillhousedata.com/firm/138111) | Chicago, IL | $3.4M | 376,573 |
| [Laurion Capital Management LP](https://search.stillhousedata.com/firm/161278) | NEW YORK, NY | $2.7M | 302,756 |
| Nantahala Capital Management, LLC | New Canaan, CT | $2.7M | 300,635 |
| [Pivotal bioVenture Partners Investment Advisor LLC](https://search.stillhousedata.com/firm/287988) | SAN FRANCISCO, CA | $2.7M | 300,579 |
| [5AM Venture Management, LLC](https://search.stillhousedata.com/firm/160395) | San Francisco, CA | $2.6M | 291,788 |
| [Almitas Capital LLC](https://search.stillhousedata.com/firm/166705) | SANTA MONICA, CA | $1.7M | 191,206 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $1.4M | 156,527 |
| Mariner, LLC | Overland Park, KS | $454K | 50,566 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $318K | 35,425 |
| [Rangeley Capital, LLC](https://search.stillhousedata.com/firm/152725) | NEW CANAAN, CT | $270K | 30,130 |
| [GTS SECURITIES LLC](https://search.stillhousedata.com/firm/149224) | NEW YORK, NY | $197K | 22,016 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Fidelity Growth Company Fund](https://search.stillhousedata.com/fund/S000007119) | Fidelity Mt. Vernon Street Trust | $3.0M | 0.30% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $292K | 0.04% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $41K | 0.06% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/75120L209.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.