BillionToOne, Inc. - Class A common stock, par value $0.00001 per share (BLLN)

Q: What does CUSIP 090168105 represent in this 13F holders report?

CUSIP 090168105 is the security identifier for BLLN - BillionToOne, Inc. - Class A common stock, par value $0.00001 per share used to aggregate holder disclosures.

Q: How many institutions held BLLN - BillionToOne, Inc. - Class A common stock, par value $0.00001 per share in Q1 2026?

89 institutional investors reported BLLN - BillionToOne, Inc. - Class A common stock, par value $0.00001 per share for Q1 2026. Use the holders table for investor-level position and value details.

CUSIP: 090168105

Q1 2026 13F Holders as of 31 Mar 2026

Type / Class: Equity / Class A common stock, par value $0.00001 per share
Shares outstanding: 43,996,623
Total 13F shares: 11,339,021
Share change: +1,679,535
Total reported value: $875,090,591
Put/Call ratio: 247%
Price per share: $78.94
Number of holders: 89
Value change: +$131,775,443
Number of buys: 55
Number of sells: 43

Quarterly Holders Quick Answers

What is CUSIP 090168105?
CUSIP 090168105 identifies BLLN - BillionToOne, Inc. - Class A common stock, par value $0.00001 per share in SEC institutional holdings data.

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Previous quarter: Q4 2025

Recent filing periods for CUSIP 090168105:

Q1 2026 Q4 2025

Top shareholders of BLLN - BillionToOne, Inc. - Class A common stock, par value $0.00001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Humming Bird Ventures Management NV	13D/G 3/4/5	Hummingbird Ventures Management NV · 10%+ Owner	20%	7,887,237	$645,491,476	$0	06 Nov 2025	13D/G 3/4/5
NeoTribe Ventures I, L.P.	13D/G	Krishna Kittu Kolluri ("Kolluri")	11%	4,359,505	$422,218,059	$0	07 Nov 2025	13D/G
Oguzhan Atay	13D/G 3/4/5	Chairman and Chief Executive Officer, Director	7.3%	3,206,861	$310,584,488	$0	31 Dec 2025	13D/G 3/4/5
David Tsao	13D/G 3/4/5	Chief Technology Officer, Director	6.9%	3,035,767	$294,014,034	$0	31 Dec 2025	13D/G 3/4/5
ADAMS STREET PARTNERS LLC	13F	Company	3.9%	1,711,430	$140,063,431	—	31 Dec 2025	13F
BAILLIE GIFFORD & CO	13F	Company	2.9%	1,268,163	$103,786,460	—	31 Dec 2025	13F
Civilization Ventures Management, LLC	13F	Company	2.5%	1,099,431	$89,977,433	—	31 Dec 2025	13F
Neuberger Berman Group LLC	13F	Company	1.6%	700,867	$57,358,955	—	31 Dec 2025	13F
NVP Associates, LLC	13F	Company	1.2%	513,330	$42,010,927	—	31 Dec 2025	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.1%	485,283	$39,717,000	—	31 Dec 2025	13F
JPMORGAN CHASE & CO	13F	Company	0.89%	391,958	$32,077,843	—	31 Dec 2025	13F
VANGUARD GROUP INC	13F	Company	0.8%	352,368	$28,837,797	—	31 Dec 2025	13F
Napean Trading & Investment Co (Singapore) PTE Ltd	13F	Company	0.53%	233,333	$19,095,973	—	31 Dec 2025	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.52%	227,655	$18,631,285	—	31 Dec 2025	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.47%	208,594	$17,071,333	—	31 Dec 2025	13F
Invesco Ltd.	13F	Company	0.43%	189,819	$15,534,787	—	31 Dec 2025	13F
EMERALD ADVISERS, LLC	13F	Company	0.43%	188,949	$15,463,586	—	31 Dec 2025	13F
Capital International Investors	13F	Company	0.4%	178,000	$14,567,520	—	31 Dec 2025	13F
BAMCO INC /NY/	13F	Company	0.39%	170,000	$13,912,800	—	31 Dec 2025	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	0.37%	163,400	$13,372,656	—	31 Dec 2025	13F
CITADEL ADVISORS LLC	13F	Company	0.34%	148,868	$12,183,357	—	31 Dec 2025	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.28%	122,273	$10,006,823	—	31 Dec 2025	13F
EMERALD MUTUAL FUND ADVISERS TRUST	13F	Company	0.27%	118,134	$9,668,087	—	31 Dec 2025	13F
T. Rowe Price Investment Management, Inc.	13F	Company	0.23%	101,136	$8,277,000	—	31 Dec 2025	13F
PFM Health Sciences, LP	13F	Company	0.2%	87,547	$7,164,846	—	31 Dec 2025	13F
Siren, L.L.C.	13F	Individual	0.19%	83,833	$6,860,893	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.19%	82,034	$6,715,766	—	31 Dec 2025	13F
PERCEPTIVE ADVISORS LLC	13F	Company	0.17%	72,812	$5,958,934	—	31 Dec 2025	13F
BlackRock, Inc.	13F	Company	0.16%	71,400	$5,843,377	—	31 Dec 2025	13F
BRAIDWELL LP	13F	Company	0.11%	50,000	$4,092,000	—	31 Dec 2025	13F
Deep Track Capital, LP	13F	Company	0.11%	50,000	$4,092,000	—	31 Dec 2025	13F
LORD, ABBETT & CO. LLC	13F	Company	0.11%	46,308	$3,790,000	—	31 Dec 2025	13F
MYDA Advisors LLC	13F	Company	0.09%	40,200	$3,289,968	—	31 Dec 2025	13F
NEXT CENTURY GROWTH INVESTORS LLC	13F	Company	0.08%	36,659	$3,000,172	—	31 Dec 2025	13F
Verition Fund Management LLC	13F	Company	0.08%	33,311	$2,726,172	—	31 Dec 2025	13F
UBS Group AG	13F	Company	0.07%	31,599	$2,586,062	—	31 Dec 2025	13F
TD ASSET MANAGEMENT INC	13F	Company	0.06%	26,730	$2,187,583	—	31 Dec 2025	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.06%	26,604	$2,177,271	—	31 Dec 2025	13F
Catalio Capital Management, LP	13F	Company	0.06%	25,505	$2,087,329	—	31 Dec 2025	13F
SEVEN GRAND MANAGERS, LLC	13F	Company	0.06%	25,000	$2,046,000	—	31 Dec 2025	13F
STATE STREET CORP	13F	Company	0.05%	21,600	$1,767,744	—	31 Dec 2025	13F
MARSHALL WACE, LLP	13F	Company	0.05%	20,902	$1,710,619	—	31 Dec 2025	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.05%	20,715	$1,695,316	—	31 Dec 2025	13F
XTX Topco Ltd	13F	Company	0.05%	20,678	$1,692,288	—	31 Dec 2025	13F
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC	13F	Company	0.04%	19,783	$1,619,041	—	31 Dec 2025	13F
Woodline Partners LP	13F	Company	0.04%	17,000	$1,391,280	—	31 Dec 2025	13F
Universal- Beteiligungs- und Servicegesellschaft mbH	13F	Individual	0.04%	16,473	$1,348,150	—	31 Dec 2025	13F
SOROS FUND MANAGEMENT LLC	13F	Company	0.03%	14,500	$1,186,680	—	31 Dec 2025	13F
MANUFACTURERS LIFE INSURANCE COMPANY, THE	13F	Company	0.03%	12,117	$1,029,365	—	31 Dec 2025	13F
Bellevue Group AG	13F	Company	0.02%	10,589	$866,604	—	31 Dec 2025	13F

Institutional Holders of BillionToOne, Inc. - Class A common stock, par value $0.00001 per share (BLLN) as of Q1 2026

As of 31 Mar 2026, BillionToOne, Inc. - Class A common stock, par value $0.00001 per share (BLLN) was held by 89 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 11,339,021 shares. The largest 10 holders included ADAMS STREET PARTNERS LLC, BAILLIE GIFFORD & CO, Civilization Ventures Management, LLC, BAMCO INC /NY/, PRICE T ROWE ASSOCIATES INC /MD/, NEUBERGER BERMAN GROUP LLC, NVP ASSOCIATES, LLC, Invesco Ltd., WASATCH ADVISORS LP, and JPMORGAN CHASE & CO. This page lists 89 institutional shareholders reporting positions in this security for the Q1 2026 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

Q1 2026 holders

Holder diff

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Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 Value $	Q1 2026 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.