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BLLN

BillionToOne Inc
BLLN

91 hedge funds and large institutions have $875M invested in BillionToOne Inc in 2026 Q1 according to their latest regulatory filings, with 29 funds opening new positions, 32 increasing their positions, 15 reducing their positions, and 28 closing their positions.

New
Increased
Maintained
Reduced
Closed

113% more repeat investments, than reductions

Existing positions increased: 32 | Existing positions reduced: 15

25% more funds holding in top 10

Funds holding in top 10: 4 → 5 (+1)

11% more capital invested

Capital invested by funds: $790M → $875M (+$85.4M)

3.97% more ownership

Funds ownership: 23.46% → 27.43% (+4%)

4% more first-time investments, than exits

New positions opened: 29 | Existing positions closed: 28

0% more funds holding

Funds holding: 91 → 91 (0)

56% less call options, than puts

Call options by funds: $1.66M | Put options by funds: $3.77M

Holders
91
Holders Change
–
Holders Change %
0%
% of All Funds
1.12%
Holding in Top 10
5
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+25%
% of All Funds
0.06%
New
29
Increased
32
Reduced
15
Closed
28
Calls
$1.66M
Puts
$3.77M
Net Calls
-$2.11M
Net Calls Change
-$2.11M

Top Buyers

1
BAMCO Inc
BAMCO Inc
New York
+$46.8M
2
WA
Wasatch Advisors
Utah
+$30.3M
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$20.6M
4
Invesco
Invesco
Georgia
+$17.7M
5
PCM
Penn Capital Management
Pennsylvania
+$10.3M

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
-$12.2M
2
JP Morgan Chase
JP Morgan Chase
New York
-$8.91M
3
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$8.28M
4
SL
Siren LLC
Connecticut
-$6.86M
5
B
Braidwell
Connecticut
-$4.09M
Name Holding Trade Value Shares
Change 		Change in
Stake
HI
76
Harbour Investments
Wisconsin
$14.2K +$14.7K +180 New
Fifth Third Bancorp
77
Fifth Third Bancorp
Ohio
$10.6K +$11K +134 New
RF
78
Rossby Financial
Florida
$8.3K -$16.4K -200 -67%
MA
79
MCF Advisors
Kentucky
$8.21K +$5.32K +65 +167%
US Bancorp
80
US Bancorp
Minnesota
$5.05K +$5.24K +64 New
CTA
81
Colonial Trust Advisors
South Carolina
$3.95K – – –
EIPL
82
Essential Investment Partners LLC
Colorado
$3.95K +$2.05K +25 +100%
QT
83
Quantbot Technologies
New York
$3.16K +$3.27K +40 New
PWA
84
Physician Wealth Advisors
Utah
$1.34K – – –
HNB
85
Huntington National Bank
Ohio
$1.18K +$1.23K +15 New
FFA
86
Frazier Financial Advisors
Ohio
$1.11K – – –
Jones Financial Companies
87
Jones Financial Companies
Missouri
$835 – – –
BNP Paribas Financial Markets
88
BNP Paribas Financial Markets
France
$632 +$655 +8 New
MAM
89
Marquette Asset Management
Minnesota
$553 +$573 +7 New
Citigroup
90
Citigroup
New York
$79 – – –
BB
91
Berkshire Bank
Massachusetts
$2 – – –
Citadel Advisors
92
Citadel Advisors
Florida
– -$12.2M -148,868 Closed
T. Rowe Price Investment Management
93
T. Rowe Price Investment Management
Maryland
– -$8.28M -101,136 Closed
SL
94
Siren LLC
Connecticut
– -$6.86M -83,833 Closed
B
95
Braidwell
Connecticut
– -$4.09M -50,000 Closed
Verition Fund Management
96
Verition Fund Management
Connecticut
– -$2.73M -33,311 Closed
CCM
97
Catalio Capital Management
New York
– -$2.09M -25,505 Closed
Marshall Wace
98
Marshall Wace
United Kingdom
– -$1.71M -20,902 Closed
SPPAM
99
Summit Partners Public Asset Management
Massachusetts
– -$1.62M -19,783 Closed
WP
100
Woodline Partners
California
– -$1.39M -17,000 Closed
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