Latest Period
Q2 2026
Security Snapshot
BillionToOne, Inc. - Class A common stock, par value $0.00001 per share (BLLN) Institutional Ownership
CUSIP: 090168105
13F Institutional Holders and Ownership History from Q4 2025 to Q2 2026
Institutions Reporting
156
Shares (Excl. Options)
15,278,720
Price
$119.98
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- Security type / class
- Equity / Class A common stock, par value $0.00001 per share
- Symbol
- BLLN on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 15,278,720
- Total 13F value
- $1,822,601,547
- Portfolio coverage rank
- 0.01%
- Share change
- +3,817,130
- Value change
- +$516,685,932
- Number of holders
- 156
- Shares outstanding
- 43,996,623
- SEC-reported price per share
- $133.64
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
Key facts
- BLLN - BillionToOne, Inc. - Class A common stock, par value $0.00001 per share is tracked under CUSIP 090168105.
- 156 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 90 to 156 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $875,094,538 to $1,822,601,547.
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 156 institutions filings for Q2 2026.
Security key
090168105
Latest holder period
Q2 2026
13F holders
156
13D/G owners
4
CIK / CUSIP context first
Open Q2 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 |
|---|---|---|---|---|---|---|---|---|
| Humming Bird Ventures Management NV | 20% | $645,491,476 | 7,887,237 | Hummingbird Ventures Management NV | 06 Nov 2025 | |||
| 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 Jun 2026, 156 institutional investors reported holding 15,278,720 shares of BillionToOne, Inc. - Class A common stock, par value $0.00001 per share (BLLN). This represents 35% of the company’s total 43,996,623 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
29%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| ADAMS STREET PARTNERS LLC | 3.9% | 1,711,430 | 0% | 46% | $205,337,371 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.3% | 1,010,322 | +37% | 0.01% | $121,220,000 |
| BAILLIE GIFFORD & CO | 2% | 901,420 | -28% | 0.1% | $108,152,370 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9% | 840,970 | +456% | 0% | $100,899,581 |
| Invesco Ltd. | 1.9% | 835,614 | +106% | 0.01% | $100,256,968 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.8% | 799,468 | +338% | 0% | $95,920,171 |
| NEUBERGER BERMAN GROUP LLC | 1.7% | 764,215 | +7.8% | 0.06% | $91,690,517 |
| BAMCO INC /NY/ | 1.7% | 742,093 | +0.08% | 0.13% | $89,036,318 |
| WASATCH ADVISORS LP | 1.2% | 518,084 | +40% | 0.41% | $62,159,718 |
| MILLENNIUM MANAGEMENT LLC | 0.97% | 425,032 | 0.03% | $50,995,339 | |
| FULLER & THALER ASSET MANAGEMENT, INC. | 0.95% | 418,565 | 0.14% | $50,219,447 | |
| EMERALD ADVISERS, LLC | 0.85% | 375,858 | +57% | 1.1% | $45,095,443 |
| NEXT CENTURY GROWTH INVESTORS LLC | 0.83% | 364,467 | +302% | 2.3% | $43,728,750 |
| UBS Group AG | 0.78% | 344,287 | +183% | 0.01% | $41,307,554 |
| JPMORGAN CHASE & CO | 0.77% | 340,371 | +20% | 0% | $41,013,056 |
| AMERIPRISE FINANCIAL INC | 0.73% | 320,612 | +46% | 0.01% | $38,497,422 |
| OBERWEIS ASSET MANAGEMENT INC/ | 0.68% | 299,030 | 0.74% | $35,877,619 | |
| WELLS FARGO & COMPANY/MN | 0.62% | 271,554 | +24408% | 0.01% | $32,581,049 |
| ALLIANCEBERNSTEIN L.P. | 0.6% | 262,103 | +17% | 0.01% | $20,690,411 |
| Napean Trading & Investment Co (Singapore) PTE Ltd | 0.53% | 233,333 | 0% | 9.6% | $27,995,293 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.51% | 223,933 | -6.9% | 0% | $26,867,482 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 0.46% | 203,990 | +54% | 0.86% | $24,474,720 |
| Penn Capital Management Company, LLC | 0.29% | 129,602 | +2.6% | 0.99% | $15,549,648 |
| BNP PARIBAS FINANCIAL MARKETS | 0.28% | 122,527 | 0% | 0.01% | $14,700,789 |
| GOLDMAN SACHS GROUP INC | 0.27% | 120,325 | +2794% | 0% | $14,436,593 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q2 2026
Rows shown
1-3 of 3