# BillionToOne, Inc. Class A

BillionToOne, Inc. Class A is a security (CUSIP 090168105) tracked across SEC portfolio filings. 108 institutional managers reported $888.8M on Form 13F as of 2026-06-30; 13 registered fund positions totaling $97.1M via N-PORT as of 2026-05-31.

## Summary

- Issuer: BillionToOne, Inc.
- Class: Class A
- CUSIP: 090168105
- Asset category: EC
- 13F holders: 108
- 13F value: $888.8M
- 13F period: 2026-06-30
- N-PORT fund positions: 13
- N-PORT value: $97.1M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 108 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| ADAMS STREET PARTNERS LLC | Chicago, IL | $135.1M | 1,711,430 |
| BAILLIE GIFFORD & CO | EDINBURGH, X0 | $108.2M | 901,420 |
| [Civilization Ventures Management, LLC](https://search.stillhousedata.com/firm/314911) | BELVEDERE TIBURON, CA | $86.8M | 1,099,431 |
| [WASATCH ADVISORS LP](https://search.stillhousedata.com/firm/6081) | SALT LAKE CITY, UT | $62.2M | 518,084 |
| [BAMCO INC /NY/](https://search.stillhousedata.com/firm/110789) | NEW YORK, NY | $58.5M | 741,485 |
| [EMERALD ADVISERS, LLC](https://search.stillhousedata.com/firm/107496) | LEOLA, PA | $45.1M | 375,858 |
| NVP Associates, LLC | Menlo Park, CA | $40.5M | 513,330 |
| NEUBERGER BERMAN GROUP LLC | NEW YORK, NY | $37.8M | 709,214 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $28.8M | 352,368 |
| [EMERALD MUTUAL FUND ADVISERS TRUST](https://search.stillhousedata.com/firm/135130) | LEOLA, PA | $24.5M | 203,990 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $19.9M | 283,140 |
| UBS ASSET MANAGEMENT AMERICAS INC | CHICAGO, IL | $19.0M | 240,587 |
| Napean Trading & Investment Co (Singapore) PTE Ltd | SINGAPORE, U0 | $18.4M | 233,333 |
| [ALLIANCEBERNSTEIN L.P.](https://search.stillhousedata.com/firm/108477) | NASHVILLE, TN | $18.3M | 223,251 |
| [Penn Capital Management Company, LLC](https://search.stillhousedata.com/firm/105081) | PHILADELPHIA, PA | $15.5M | 129,602 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [T. Rowe Price Health Sciences Fund, Inc.](https://search.stillhousedata.com/fund/S000002088) | T. ROWE PRICE HEALTH SCIENCES FUND, INC. | $20.9M | 19.17% |
| ADAMS STREET PRIVATE EQUITY NAVIGATOR FUND LLC | ADAMS STREET PRIVATE EQUITY NAVIGATOR FUND LLC | $19.5M | 340.29% |
| [SMALLCAP World Fund Inc](https://search.stillhousedata.com/fund/S000009599) | SMALLCAP World Fund Inc | $14.1M | 1.73% |
| [Columbia Acorn Fund](https://search.stillhousedata.com/fund/S000009184) | COLUMBIA ACORN TRUST | $13.1M | 58.43% |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $11.0M | 8.59% |
| [BARON OPPORTUNITY FUND](https://search.stillhousedata.com/fund/S000000585) | BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND) | $6.9M | 42.85% |
| [Emerald Growth Fund](https://search.stillhousedata.com/fund/S000036390) | FINANCIAL INVESTORS TRUST | $4.6M | 32.57% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $4.0M | 0.49% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $1.3M | 1.19% |
| [T. Rowe Price Health Sciences Portfolio](https://search.stillhousedata.com/fund/S000002083) | T. ROWE PRICE EQUITY SERIES, INC. | $1.3M | 19.33% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $262K | 0.09% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $184K | 0.03% |
| [MFS Global Alternative Strategy Fund](https://search.stillhousedata.com/fund/S000019515) | MFS Series Trust XV | $13K | 0.61% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/090168105.md)
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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.