# LEONABIO INC COM

LEONABIO INC COM is a security (CUSIP 04746L203) tracked across SEC portfolio filings. 38 institutional managers reported $64.5M on Form 13F as of 2026-06-30; 5 registered fund positions totaling $956K via N-PORT as of 2026-05-29.

## Summary

- Issuer: LEONABIO INC
- Class: COM
- CUSIP: 04746L203
- Asset category: EC
- 13F holders: 38
- 13F value: $64.5M
- 13F period: 2026-06-30
- N-PORT fund positions: 5
- N-PORT value: $956K
- N-PORT report: 2026-05-29

## Top institutional holders (Form 13F)

_Showing 15 of 38 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [PERCEPTIVE ADVISORS LLC](https://search.stillhousedata.com/firm/154703) | NEW YORK, NY | $19.1M | 1,859,322 |
| [ADAR1 Capital Management, LLC](https://search.stillhousedata.com/firm/299694) | AUSTIN, TX | $7.5M | 727,481 |
| ACORN CAPITAL ADVISORS, LLC | NEW YORK, NY | $6.5M | 634,539 |
| [NEA Management Company, LLC](https://search.stillhousedata.com/firm/161004) | TIMONIUM, MD | $4.8M | 464,398 |
| [COMMODORE CAPITAL LP](https://search.stillhousedata.com/firm/304370) | NEW YORK, NY | $4.8M | 464,398 |
| TCG Crossover Management, LLC | PALO ALTO, CA | $4.7M | 464,398 |
| [Kalehua Capital Management LLC](https://search.stillhousedata.com/firm/325290) | DALLAS, TX | $4.0M | 393,701 |
| [Spruce Street Capital LP](https://search.stillhousedata.com/firm/333213) | NEW YORK, NY | $3.8M | 393,701 |
| [Seven Fleet Capital Management LP](https://search.stillhousedata.com/firm/335203) | MOUNTAIN VIEW, CA | $1.7M | 164,676 |
| [Propel Bio Management, LLC](https://search.stillhousedata.com/firm/322858) | LOS ANGELES, CA | $1.5M | 149,279 |
| [Simplify Asset Management Inc.](https://search.stillhousedata.com/firm/309535) | Las Vegas, NV | $1.4M | 149,279 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $1.2M | 153,789 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $826K | 80,323 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $660K | 64,222 |
| BlackRock, Inc. | New York, NY | $576K | 56,051 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $850K | 0.10% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $73K | 0.01% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $34K | 0.05% |
| Guggenheim Active Allocation Fund | Guggenheim Active Allocation Fund | $181 | 0.00% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $-1K | -0.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/04746L203.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.