Baillie Gifford's position in BillionToOne is currently worth $132M. That's 0.11% of their equity portfolio (111th largest holding). The investor owns 2.89% of the outstanding BillionToOne stock. Baillie Gifford started to build up the position in BillionToOne in Q4 2025. Since then they sold 8.17k shares. The stake costed the investor $108M, netting the investor a gain of 22% so far.