BillionToOne, Inc. (BLLN) — Institutional Holders, Q2 2026
156 institutional investment managers reported a BLLN position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.8B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
BLLN in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- VANGUARD PORTFOLIO MANAGEMENTAdded · +689,757 sh+$82.8M
- VANGUARD CAPITAL MANAGEMENTAdded · +617,005 sh+$74.0M
- Invesco Ltd.Added · +429,102 sh+$51.5M
- MILLENNIUM MANAGEMENTNew · +425,032 sh+$51.0M
- FULLER & THALER ASSET MANAGEMENTNew · +418,565 sh+$50.2M
Biggest sellers
- Civilization Ventures ManagementTrimmed · -1,099,343 sh-$131.9M
- NVP AssociatesSold out · -513,330 sh-$61.6M
- BAILLIE GIFFORDTrimmed · -358,573 sh-$43.0M
- Capital International InvestorsSold out · -178,000 sh-$21.4M
- PFM Health SciencesSold out · -88,069 sh-$10.6M
BLLN 13F holders ranked 1–100 of 156
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | ADAMS STREET PARTNERS#1 · 1,711,430 sh | 1,711,430 | $205.3M | 46.39% | 0.0% |
| 2 | PRICE T ROWE ASSOCIATES#2 · 1,010,322 sh | 1,010,322 | $121.2M | 0.01% | +37.0% |
| 3 | BAILLIE GIFFORD#3 · 901,420 sh | 901,420 | $108.2M | 0.10% | -28.5% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT#4 · 840,970 sh | 840,970 | $100.9M | <0.01% | +456.1% |
| 5 | Invesco Ltd.#5 · 835,614 sh | 835,614 | $100.3M | <0.01% | +105.6% |
| 6 | VANGUARD CAPITAL MANAGEMENT#6 · 799,468 sh | 799,468 | $95.9M | <0.01% | +338.2% |
| 7 | Neuberger Berman Group#7 · 764,215 sh | 764,215 | $91.7M | 0.06% | +7.8% |
| 8 | BAMCO#8 · 742,093 sh | 742,093 | $89.0M | 0.13% | +0.1% |
| 9 | WASATCH ADVISORS#9 · 518,084 sh | 518,084 | $62.2M | — | +40.2% |
| 10 | MILLENNIUM MANAGEMENT#10 · 425,032 sh | 425,032 | $51.0M | 0.02% | New |
| 11 | FULLER & THALER ASSET MANAGEMENT#11 · 418,565 sh | 418,565 | $50.2M | 0.14% | New |
| 12 | EMERALD ADVISERS#12 · 375,858 sh | 375,858 | $45.1M | 1.06% | +56.9% |
| 13 | NEXT CENTURY GROWTH INVESTORS#13 · 364,467 sh | 364,467 | $43.7M | 2.32% | +302.4% |
| 14 | UBS Group AG#14 · 344,287 sh | 344,287 | $41.3M | <0.01% | +183.1% |
| 15 | JPMORGAN CHASE#15 · 340,371 sh | 340,371 | $41.0M | <0.01% | +20.2% |
| 16 | AMERIPRISE FINANCIAL#16 · 320,612 sh | 320,612 | $38.5M | <0.01% | +45.7% |
| 17 | OBERWEIS ASSET MANAGEMENT#17 · 299,030 sh | 299,030 | $35.9M | 0.74% | New |
| 18 | WELLS FARGO & COMPANY#18 · 271,554 sh | 271,554 | $32.6M | <0.01% | New |
| 19 | Napean Trading & Investment (Singapore) PTE Ltd#19 · 233,333 sh | 233,333 | $28.0M | 9.62% | 0.0% |
| 20 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#20 · 223,933 sh | 223,933 | $26.9M | <0.01% | -6.9% |
| 21 | EMERALD MUTUAL FUND ADVISERS#21 · 203,990 sh | 203,990 | $24.5M | 0.86% | +54.3% |
| 22 | ALLIANCEBERNSTEIN L.P.#22 · 262,103 sh | 262,103 | $20.7M | <0.01% | +17.4% |
| 23 | Penn Capital Management Company#23 · 129,602 sh | 129,602 | $15.5M | 0.99% | +2.6% |
| 24 | BNP PARIBAS FINANCIAL MARKETS#24 · 122,527 sh | 122,527 | $14.7M | <0.01% | New |
| 25 | GOLDMAN SACHS GROUP#25 · 120,325 sh | 120,325 | $14.4M | <0.01% | +2793.8% |
| 26 | NEW YORK STATE COMMON RETIREMENT FUND#26 · 117,771 sh | 117,771 | $14.1M | 0.02% | +32.8% |
| 27 | VOLORIDGE INVESTMENT MANAGEMENT#27 · 117,063 sh | 117,063 | $14.0M | 0.06% | New |
| 28 | BlackRock#28 · 114,281 sh | 114,281 | $13.7M | <0.01% | +20.1% |
| 29 | FRED ALGER MANAGEMENT#29 · 114,123 sh | 114,123 | $13.7M | 0.05% | New |
| 30 | RENAISSANCE TECHNOLOGIES#30 · 96,600 sh | 96,600 | $11.6M | 0.02% | +88.5% |
| 31 | T. Rowe Price Investment Management#31 · 92,957 sh | 92,957 | $11.2M | <0.01% | New |
| 32 | GEODE CAPITAL MANAGEMENT#32 · 87,934 sh | 87,934 | $10.6M | <0.01% | -1.3% |
| 33 | PERCEPTIVE ADVISORS#33 · 86,812 sh | 86,812 | $10.4M | 0.16% | -5.4% |
| 34 | LORD, ABBETT#34 · 86,293 sh | 86,293 | $10.4M | 0.03% | +94.8% |
| 35 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#35 · 83,300 sh | 83,300 | $10.0M | 0.01% | New |
| 36 | HRT FINANCIAL#36 · 80,709 sh | 80,709 | $9.7M | 0.02% | New |
| 37 | MASSACHUSETTS FINANCIAL SERVICES#37 · 78,977 sh | 78,977 | $9.5M | <0.01% | -50.5% |
| 38 | Greenwich Wealth Management#38 · 71,625 sh | 71,625 | $8.6M | 0.31% | New |
| 39 | Blue Water Life Science Advisors#39 · 70,000 sh | 70,000 | $8.4M | 5.29% | +250.0% |
| 40 | TD ASSET MANAGEMENT#40 · 63,482 sh | 63,482 | $7.6M | <0.01% | +47.3% |
| 41 | BANK OF AMERICA#41 · 59,040 sh | 59,040 | $7.1M | <0.01% | +364.6% |
| 42 | Verition Fund Management#42 · 57,000 sh | 57,000 | $6.8M | <0.01% | New |
| 43 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#43 · 54,598 sh | 54,598 | $6.6M | <0.01% | +337.3% |
| 44 | Ensign Peak Advisors#44 · 51,427 sh | 51,427 | $6.2M | 0.01% | -0.1% |
| 45 | Jump Financial#45 · 46,300 sh | 46,300 | $5.6M | 0.04% | New |
| 46 | MARSHALL WACE, LLP#46 · 44,662 sh | 44,662 | $5.4M | <0.01% | New |
| 47 | Fox Hill Wealth Management#47 · 43,724 sh | 43,724 | $5.2M | 2.10% | New |
| 48 | F/m Investments#48 · 43,600 sh | 43,600 | $5.2M | 0.27% | +157.9% |
| 49 | Weiss Asset Management#49 · 43,057 sh | 43,057 | $5.2M | 0.05% | New |
| 50 | VANGUARD FIDUCIARY#50 · 42,874 sh | 42,874 | $5.1M | <0.01% | +54.3% |
| 51 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#51 · 41,697 sh | 41,697 | $5.0M | <0.01% | +36.7% |
| 52 | REGENTS OF THE UNIVERSITY OF CALIFORNIA#52 · 40,863 sh | 40,863 | $4.9M | — | New |
| 53 | STATE STREET#53 · 35,718 sh | 35,718 | $4.3M | <0.01% | +81.3% |
| 54 | Universal- Beteiligungs- und Servicegesellschaft mbH#54 · 32,532 sh | 32,532 | $3.9M | <0.01% | +58.0% |
| 55 | TWO SIGMA INVESTMENTS#55 · 30,176 sh | 30,176 | $3.6M | <0.01% | -63.5% |
| 56 | Russell Investments Group, Ltd.#56 · 29,074 sh | 29,074 | $3.5M | <0.01% | +55.8% |
| 57 | Trexquant Investment#57 · 28,105 sh | 28,105 | $3.4M | 0.02% | New |
| 58 | CHARLES SCHWAB INVESTMENT MANAGEMENT#58 · 26,612 sh | 26,612 | $3.2M | <0.01% | -5.1% |
| 59 | D. E. Shaw#59 · 25,981 sh | 25,981 | $3.1M | <0.01% | +572.7% |
| 60 | SEVEN GRAND MANAGERS#60 · 25,000 sh | 25,000 | $3.0M | 0.12% | 0.0% |
| 61 | ROYAL BANK OF CANADA#61 · 24,962 sh | 24,962 | $3.0M | <0.01% | +423.3% |
| 62 | Quantbot Technologies#62 · 24,651 sh | 24,651 | $3.0M | 0.12% | New |
| 63 | OpenArc Corporate Advisory#63 · 24,482 sh | 24,482 | $2.9M | — | New |
| 64 | TUDOR INVESTMENT ET AL#64 · 21,517 sh | 21,517 | $2.6M | <0.01% | New |
| 65 | MIRAE ASSET GLOBAL ETFS Ltd.#65 · 21,391 sh | 21,391 | $2.6M | <0.01% | New |
| 66 | One Wealth Advisors#66 · 19,942 sh | 19,942 | $2.4M | 0.26% | New |
| 67 | MORGAN STANLEY#67 · 18,421 sh | 18,421 | $2.2M | <0.01% | +46.4% |
| 68 | XTX Topco Ltd#68 · 18,152 sh | 18,152 | $2.2M | 0.03% | +37.7% |
| 69 | FIRST ADVISORS#69 · 17,498 sh | 17,498 | $2.1M | <0.01% | New |
| 70 | BARCLAYS PLC#70 · 17,446 sh | 17,446 | $2.1M | <0.01% | +532.6% |
| 71 | POLEN CAPITAL MANAGEMENT#71 · 16,975 sh | 16,975 | $2.0M | 0.02% | New |
| 72 | CITADEL ADVISORS#72 · 15,155 sh | 15,155 | $1.8M | <0.01% | New |
| 73 | Vontobel Holding Ltd.#73 · 15,123 sh | 15,123 | $1.8M | — | New |
| 74 | Scientech Research#74 · 14,490 sh | 14,490 | $1.7M | 1.41% | New |
| 75 | DEUTSCHE BANK AG\#75 · 13,640 sh | 13,640 | $1.6M | <0.01% | 0.0% |
| 76 | OSAIC#76 · 13,536 sh | 13,536 | $1.6M | <0.01% | +3122.9% |
| 77 | SIERRA SUMMIT ADVISORS#77 · 11,911 sh | 11,911 | $1.4M | 0.16% | New |
| 78 | Caerus Investment Advisors#78 · 11,453 sh | 11,453 | $1.4M | 0.46% | New |
| 79 | Bellevue Group AG#79 · 10,554 sh | 10,554 | $1.3M | 0.03% | 0.0% |
| 80 | SEI INVESTMENTS#80 · 9,589 sh | 9,589 | $1.2M | <0.01% | -28.4% |
| 81 | Cresset Asset Management#81 · 9,129 sh | 9,129 | $1.1M | <0.01% | New |
| 82 | Squarepoint Ops#82 · 8,773 sh | 8,773 | $1.1M | <0.01% | -61.8% |
| 83 | CreativeOne Wealth#83 · 7,974 sh | 7,974 | $956.7K | 0.02% | New |
| 84 | FIFTH THIRD BANCORP#84 · 7,510 sh | 7,510 | $901.1K | <0.01% | +5504.5% |
| 85 | BLAIR WILLIAM#85 · 6,978 sh | 6,978 | $837.2K | <0.01% | New |
| 86 | LPL Financial#86 · 6,795 sh | 6,795 | $815.3K | <0.01% | New |
| 87 | Entropy Technologies#87 · 6,700 sh | 6,700 | $803.9K | 0.03% | New |
| 88 | Steward Partners Investment Advisory#88 · 6,480 sh | 6,480 | $777.5K | <0.01% | +2060.0% |
| 89 | GSA CAPITAL PARTNERS LLP#89 · 6,203 sh | 6,203 | $744.0K | 0.05% | New |
| 90 | TWO SIGMA SECURITIES#90 · 5,992 sh | 5,992 | $718.9K | 0.06% | New |
| 91 | BRANDYWINE MANAGERS#91 · 5,750 sh | 5,750 | $689.9K | 0.34% | 0.0% |
| 92 | CERTUITY#92 · 5,342 sh | 5,342 | $641.0K | 0.03% | New |
| 93 | Green Alpha Advisors#93 · 5,197 sh | 5,197 | $623.5K | — | +0.6% |
| 94 | Jasper Ridge Partners, L.P.#94 · 5,127 sh | 5,127 | $615.1K | 0.01% | New |
| 95 | MIC Capital Management UK LLP#95 · 4,892 sh | 4,892 | $586.9K | 0.15% | New |
| 96 | SummitTX Capital, L.P.#96 · 4,415 sh | 4,415 | $529.7K | 0.01% | New |
| 97 | Pathstone#97 · 4,346 sh | 4,346 | $518.6K | <0.01% | +1.5% |
| 98 | LAVELLE CAPITAL#98 · 4,086 sh | 4,086 | $490.2K | 0.21% | New |
| 99 | Quadrature Capital Ltd#99 · 3,973 sh | 3,973 | $476.7K | <0.01% | New |
| 100 | CONNABLE OFFICE#100 · 3,850 sh | 3,850 | $461.9K | 0.04% | 0.0% |
Funds that sold out of BLLN in Q2 2026 (11)
Held BLLN at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| NVP Associates513,330 sh | 513,330 | $40.5M |
| Capital International Investors178,000 sh | 178,000 | $14.1M |
| PFM Health Sciences88,069 sh | 88,069 | $7.0M |
| Deep Track Capital50,000 sh | 50,000 | $3.9M |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO19,499 sh | 19,499 | $1.5M |
| SOROS FUND MANAGEMENT14,500 sh | 14,500 | $1.1M |
| NOMURA8,600 sh | 8,600 | $678.9K |
| Brevan Howard Capital Management7,716 sh | 7,716 | $609.1K |
| Alyeska Investment Group, L.P.7,000 sh | 7,000 | $552.6K |
| Walleye Capital5,956 sh | 5,956 | $470.2K |
| MYDA Advisors4,000 sh | 4,000 | $315.8K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.