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BLLN · BillionToOne, Inc.

$130.31 +2.13 (+1.66%) At close · Jul 17
Market Cap
$5.99B
Shares
45,995,484

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 94
Total Value: $922,087,967
Total Shares: 11,408,694

Institutional Ownership Trend

3 quarters

Superinvestors Holding BLLN

All superinvestors →
George Soros $1,144,630

Holder Concentration

Across 90 13F filers
Top Holder
15.2%
Dec 2025 → Mar 2026 · range 15.2% – 17.7%
of institutional value
Top 5
49.3%
Dec 2025 → Mar 2026 · range 49.3% – 54.9%
of institutional value
Top 10
69.6%
Dec 2025 → Mar 2026 · range 69.6% – 72.4%
of institutional value
HHI
667
Dec 2025 → Mar 2026 · range 667 – 799
Broadly held
Showing 97 of 97
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Small ADAMS STREET PARTNERS LLC $135,100,284 14.65% 1,711,430
Large BAILLIE GIFFORD & CO $99,463,846 10.79% 1,259,993
Micro Civilization Ventures Management, LLC $86,789,083 9.41% 1,099,431
Large WASATCH ADVISORS LP $62,159,718 6.74% 518,084
Large BAMCO INC /NY/ $58,532,825 6.35% 741,485
Mega PRICE T ROWE ASSOCIATES INC /MD/ $58,219,670 6.31% 737,518
Mega NEUBERGER BERMAN GROUP LLC $55,985,352 6.07% 709,214
Small NVP ASSOCIATES, LLC $40,522,270 4.39% 513,330
Mega Invesco Ltd. $32,090,057 3.48% 406,512
Mega JPMORGAN CHASE & CO $22,351,070 2.42% 283,140
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $18,991,936 2.06% 240,587
Mid EMERALD ADVISERS, LLC $18,911,024 2.05% 239,562
Small Napean Trading & Investment Co (Singapore) PTE Ltd $18,419,307 2.00% 233,333
Mega ALLIANCEBERNSTEIN L.P. $17,623,433 1.91% 223,251
Mega AMERIPRISE FINANCIAL INC $17,369,562 1.88% 220,035
Mega VANGUARD CAPITAL MANAGEMENT LLC $14,403,629 1.56% 182,463
Mega Capital International Investors $14,051,320 1.52% 178,000
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $12,596,691 1.37% 159,573
Mid EMERALD MUTUAL FUND ADVISERS TRUST Mutual Fund $10,436,341 1.13% 132,206
Mid Penn Capital Management Company, LLC $9,972,884 1.08% 126,335
Mega UBS Group AG $9,599,419 1.04% 121,604
Mega BlackRock, Inc. $7,511,929 0.81% 95,160
Mid PERCEPTIVE ADVISORS LLC $7,247,639 0.79% 91,812
Mid NEXT CENTURY GROWTH INVESTORS LLC $7,149,122 0.78% 90,564
Mega GEODE CAPITAL MANAGEMENT, LLC $7,034,658 0.76% 89,114
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $7,000,557 0.76% 88,682
Small PFM Health Sciences, LP $6,952,166 0.75% 88,069
Mega TWO SIGMA INVESTMENTS, LP $6,534,337 0.71% 82,776
Large Ensign Peak Advisors, Inc $4,065,488 0.44% 51,501
Large RENAISSANCE TECHNOLOGIES LLC $4,045,990 0.44% 51,254
Mid Deep Track Capital, LP $3,947,000 0.43% 50,000
Large LORD, ABBETT & CO. LLC $3,496,173 0.38% 44,289
Mega TD Asset Management Inc $3,402,945 0.37% 43,108
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $2,408,143 0.26% 30,506
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $2,214,582 0.24% 28,054
Mega VANGUARD FIDUCIARY TRUST CO Bank $2,193,821 0.24% 27,791
Mid SEVEN GRAND MANAGERS, LLC $1,973,500 0.21% 25,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,957,712 0.21% 24,800
Large Squarepoint Ops LLC $1,811,357 0.20% 22,946
Large NOMURA HOLDINGS INC $1,807,726 0.20% 22,900
Large Universal- Beteiligungs- und Servicegesellschaft mbH $1,625,769 0.18% 20,595
Small Blue Water Life Science Advisors, LP $1,578,800 0.17% 20,000
Mega STATE STREET CORP $1,555,118 0.17% 19,700
Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Pension $1,539,251 0.17% 19,499
Large Russell Investments Group, Ltd. $1,472,939 0.16% 18,659
Mid F/m Investments LLC $1,334,717 0.14% 16,908
Mid SOROS FUND MANAGEMENT LLC $1,144,630 0.12% 14,500
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,097,266 0.12% 13,900
Mega DEUTSCHE BANK AG\ Bank $1,076,741 0.12% 13,640
Large SEI INVESTMENTS CO $1,057,717 0.11% 13,399
Mid XTX Topco Ltd $1,040,350 0.11% 13,179
Mega BANK OF AMERICA CORP /DE/ Bank $1,003,090 0.11% 12,707
Mega MORGAN STANLEY $993,536 0.11% 12,586
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $985,644 0.11% 12,486
Mid Bellevue Group AG $833,132 0.09% 10,554
Large NOMURA HOLDINGS INC $678,884 0.07% 8,600
Mid Brevan Howard Capital Management LP $609,101 0.07% 7,716
Large Alyeska Investment Group, L.P. $552,580 0.06% 7,000
Large Walleye Capital LLC $470,166 0.05% 5,956
Small BRANDYWINE MANAGERS, LLC $453,905 0.05% 5,750
Mega CITADEL ADVISORS LLC $426,276 0.05% 5,400
Small Green Alpha Advisors, LLC $407,961 0.04% 5,168
Mega ROYAL BANK OF CANADA Bank $376,543 0.04% 4,770
Small Harbour Capital Advisors, LLC $341,943 0.04% 2,850
Large Pathstone Holdings, LLC $337,863 0.04% 4,280
Mega GOLDMAN SACHS GROUP INC $328,232 0.04% 4,158
Small MYDA Advisors LLC $315,760 0.03% 4,000
Mega D. E. Shaw & Co., Inc. $304,866 0.03% 3,862
Small CONNABLE OFFICE INC $303,919 0.03% 3,850
Mid Cornerstone Investment Partners, LLC $268,553 0.03% 3,402
Small Thrive Wealth Management, LLC $239,960 0.03% 2,000
Mega BARCLAYS PLC $217,715 0.02% 2,758
Small Renaissance Capital LLC $152,117 0.02% 1,927
Mega Vanguard Global Advisers, LLC $138,539 0.02% 1,755
Mid Smartleaf Asset Management LLC $102,385 0.01% 1,297
Mega WELLS FARGO & COMPANY/MN $87,465 0.01% 1,108
Small TOTH FINANCIAL ADVISORY CORP $59,990 0.01% 500
Mid SBI Securities Co., Ltd. Broker-Dealer $53,679 0.01% 680
Small RiverPark Advisors, LLC $49,495 0.01% 627
Large OSAIC HOLDINGS, INC. $33,154 0.00% 420
Large Steward Partners Investment Advisory, LLC $23,682 0.00% 300
Mid HARBOUR INVESTMENTS, INC. $14,209 0.00% 180
Large FIFTH THIRD BANCORP Bank $10,577 0.00% 134
Small MCF Advisors LLC $8,209 0.00% 104
Small Rossby Financial, LCC $7,894 0.00% 100
Micro Essential Investment Partners LLC $5,999 0.00% 50
Large US BANCORP \DE\ Bank $5,052 0.00% 64
Small WOLFF WIESE MAGANA LLC $4,799 0.00% 40
Mid Colonial Trust Advisors $3,947 0.00% 50
Mid Quantbot Technologies LP $3,157 0.00% 40
Small Physician Wealth Advisors, Inc. $1,341 0.00% 17
Large HUNTINGTON NATIONAL BANK Bank $1,184 0.00% 15
Micro Frazier Financial Advisors, LLC $1,105 0.00% 14
Large JONES FINANCIAL COMPANIES LLLP $947 0.00% 12
Micro Marquette Asset Management, LLC $839 0.00% 7
Mega BNP PARIBAS ARBITRAGE, SA $631 0.00% 8
Mega CITIGROUP INC $78 0.00% 1
Key facts CIK 2070849 CUSIP 090168105 13F (30d) 10 filings 8 filers Visit website Investor relations

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