13F reference period
Q3 2026
Security Snapshot
BillionToOne, Inc. - Class A common stock (BLLN) Institutional Ownership
CUSIP: 090168105
13F Institutional Holders and Ownership History from Q4 2025 to Q3 2026
Institutions Reporting
82
Shares (Excl. Options)
9.03M
Full value: 9,029,932 · shares · 30 Sep 2026Price
$106.44
The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Class A common stock
- Symbol
- BLLN on Nasdaq
- All holders as of 30 Sep 2026
- Q3 2026
- Total 13F shares
- 9,029,932
- Total 13F value
- $963,183,736
- Portfolio coverage rank
- 0%
- Share change
- +1,475,962
- Value change
- +$149,790,212
- Number of holders
- 82
- Shares outstanding
- 43,267,620
- SEC-reported price per share
- $106.44
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- BLLN - BillionToOne, Inc. - Class A common stock is tracked under CUSIP 090168105.
- 82 institutions reported positions in Q3 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 155 to 82 between Q2 2026 and Q3 2026.
- SEC-reported value moved from to
$1.82B
Full value: $1,822,572,752 · USD · 30 Jun 2026.$963.18M
Full value: $963,183,736 · USD · 30 Sep 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 82 institutions filings for Q3 2026.
Security key
090168105
13F reference period
Q3 2026
13F holders
82
13D/G owners
4
CIK / CUSIP context first
Open Q3 2026 holders
BLLN full holder history
BillionToOne, Inc. SEC filings
BillionToOne, Inc. company facts
BillionToOne, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 090168105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
BLLN
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Hummingbird Ventures Management NV | 19% | -5.2% | $855,223,793 | +$15,706,286 | 8,034,797 | +1.9% | Firat Ileri | 30 Sep 2026 |
| NeoTribe Ventures I, L.P. | 11% | $422,218,059 | 4,359,505 | Krishna Kittu Kolluri ("Kolluri") | 07 Nov 2025 | |||
| Atay Oguzhan | 7.3% | $310,584,488 | 3,206,861 | Oguzhan Atay | 31 Dec 2025 | |||
| Tsao David | 6.9% | $294,014,034 | 3,035,767 | David Tsao | 31 Dec 2025 |
As of 30 Sep 2026,
82
institutional investors reported holding
shares of
BillionToOne, Inc. - Class A common stock (BLLN).
This represents
21%
of the company’s total
outstanding shares.
9.03M
Full value: 9,029,932 · shares · 30 Sep 202643.27M
Full value: 43,267,620 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
20%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Invesco Ltd. | 3.2% | 1,383,470 | +66% | 0.01% | $147,256,547 |
| BAILLIE GIFFORD & CO | 2.5% | 1,081,497 | +20% | 0.11% | $115,114,542 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.4% | 1,018,301 | +27% | 0% | $108,387,958 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9% | 822,295 | -2.2% | 0% | $87,525,080 |
| WASATCH ADVISORS LP | 1.2% | 507,258 | -2.1% | 0.4% | $53,992,542 |
| EMERALD ADVISERS, LLC | 0.94% | 408,200 | +8.6% | 1.2% | $43,448,808 |
| NEUBERGER BERMAN GROUP LLC | 0.82% | 353,631 | -54% | 0.03% | $37,640,483 |
| MARSHALL WACE, LLP | 0.74% | 321,546 | +620% | 0.03% | $34,225,356 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.62% | 266,741 | +203% | 0% | $28,407,270 |
| NEXT CENTURY GROWTH INVESTORS LLC | 0.6% | 259,832 | -29% | 1.8% | $27,656,518 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 0.59% | 254,318 | +25% | 1.1% | $27,069,608 |
| Napean Trading & Investment Co (Singapore) PTE Ltd | 0.54% | 233,333 | 0% | 11% | $24,835,965 |
| Aberdeen Group plc | 0.42% | 183,808 | 0.03% | $19,564,524 | |
| RENAISSANCE TECHNOLOGIES LLC | 0.42% | 183,700 | +90% | 0.03% | $19,553,028 |
| FRANKLIN TEMPLETON INC | 0.35% | 151,628 | 0% | $17,268,913 | |
| Qube Research & Technologies Ltd | 0.34% | 146,061 | 0.02% | $15,546,733 | |
| STATE STREET CORP | 0.33% | 144,075 | +303% | 0% | $15,335,343 |
| VANGUARD FIDUCIARY TRUST CO | 0.32% | 138,780 | +224% | 0% | $14,771,743 |
| Penn Capital Management Company, LLC | 0.31% | 132,636 | +2.3% | 1% | $14,143,483 |
| Blue Water Life Science Advisors, LP | 0.24% | 104,000 | +49% | 4.4% | $11,069,760 |
| BNP PARIBAS FINANCIAL MARKETS | 0.23% | 100,000 | 0.01% | $10,644,000 | |
| Cerity Partners LLC | 0.22% | 97,337 | +3145% | 0.01% | $10,360,550 |
| TD ASSET MANAGEMENT INC | 0.17% | 73,874 | +16% | 0.01% | $8,730,429 |
| MORGAN STANLEY | 0.17% | 72,327 | +293% | 0% | $7,698,563 |
| Greenwich Wealth Management LLC | 0.17% | 71,625 | 0% | 0.25% | $7,624,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
4
Headline period
Q3 2026
Rows shown
1-4 of 4
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 9,029,932 | $963,183,736 | +$149,790,212 | $106.44 | 82 |
| 2026 Q2 | 15,278,480 | $1,822,572,752 | +$516,657,137 | $119.98 | 155 |
| 2026 Q1 | 11,339,071 | $875,094,538 | +$131,777,417 | $78.94 | 90 |
| 2025 Q4 | 9,651,437 | $789,938,363 | +$699,879,009 | $81.84 | 90 |