BillionToOne Inc
BLLN
91 hedge funds and large institutions have $790M invested in BillionToOne Inc in 2025 Q4 according to their latest regulatory filings, with 91 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.
23.46% more ownership
Funds ownership: 0% → 23.46% (+23%)
Top Buyers
| 1 |
ASP
Adams Street Partners
Chicago,
Illinois
|
+$174M |
| 2 |
Baillie Gifford & Co
Edinburgh,
United Kingdom
|
+$129M |
| 3 |
Neuberger Berman Group
New York
|
+$71.1M |
| 4 |
NA
NVP Associates
Menlo Park,
California
|
+$52.1M |
| 5 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$49.2M |
Top Sellers
BLLN Hedge Fund Activity: Q4 2025 in Review
91 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in BillionToOne Inc (BLLN) for Q4 2025, worth a combined $790M.
Buyers outnumbered sellers: 91 funds opened new BLLN positions and 0 closed out — a net gain of 91 holders — while 0 added to existing stakes and 0 trimmed.
The largest buyer was Adams Street Partners, opening a new position worth an estimated $174M.
- 91 institutional investors held BillionToOne Inc (BLLN) as of Q4 2025, up from 0 in Q3 2025.
- Funds reported $790M of BillionToOne Inc stock for Q4 2025.
- 91 funds opened new BillionToOne Inc positions in Q4 2025 and 0 closed out, a net change of +91 holders.
- The largest BillionToOne Inc buyer in Q4 2025 was Adams Street Partners, an estimated $174M added.
Based on aggregated 13F filings for Q4 2025.