# Assembly Biosciences Inc. COM NEW

Assembly Biosciences Inc. COM NEW is a security (CUSIP 045396207) tracked across SEC portfolio filings. 80 institutional managers reported $397.1M on Form 13F as of 2026-06-30; 3 registered fund positions totaling $4.0M via N-PORT as of 2026-03-31.

## Summary

- Issuer: Assembly Biosciences Inc.
- Class: COM NEW
- CUSIP: 045396207
- Asset category: EC
- 13F holders: 80
- 13F value: $397.1M
- 13F period: 2026-06-30
- N-PORT fund positions: 3
- N-PORT value: $4.0M
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 80 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| GILEAD SCIENCES, INC. | FOSTER CITY, CA | $136.8M | 4,977,089 |
| [FARALLON CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/107322) | SAN FRANCISCO, CA | $34.1M | 1,227,590 |
| RA CAPITAL MANAGEMENT, L.P. | Boston, MA | $28.3M | 1,020,410 |
| [COMMODORE CAPITAL LP](https://search.stillhousedata.com/firm/304370) | NEW YORK, NY | $27.8M | 1,000,000 |
| JANUS HENDERSON GROUP PLC | LONDON, X0 | $23.5M | 849,309 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $19.5M | 572,898 |
| [Paradigm Biocapital Advisors LP](https://search.stillhousedata.com/firm/312544) | NEW YORK, NY | $18.5M | 665,251 |
| [Parkman Healthcare Partners LLC](https://search.stillhousedata.com/firm/300701) | STAMFORD, CT | $11.4M | 411,227 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $9.5M | 344,105 |
| Blackstone Inc. | NEW YORK, NY | $8.2M | 296,855 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $6.5M | 233,650 |
| Aberdeen Group plc | EDINBURGH, X0 | $5.7M | 207,047 |
| BlackRock, Inc. | New York, NY | $5.6M | 202,743 |
| [STEMPOINT CAPITAL LP](https://search.stillhousedata.com/firm/324248) | NEW YORK, NY | $5.1M | 185,435 |
| B Group, Inc. | DALLAS, TX | $4.9M | 175,706 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $3.6M | 0.44% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $176K | 0.03% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $169K | 0.06% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/045396207.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.