Vanguard Group’s BillionToOne Inc BLLN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q4
$28.8M Buy
+352,368
New +$35.7M ﹤0.01% 2448

Other funds holding BLLN

Vanguard Group's BLLN Position: Q4 2025 in Review

Vanguard Group opened a new position in BillionToOne Inc (BLLN) in Q4 2025: 352,368 shares worth $28.8M. The stake represents ﹤0.01% of the portfolio and ranks #2448 among its holdings.

91 funds tracked by Wall St. Rank hold BLLN as of Q4 2025.

  • Vanguard Group held 352,368 shares of BillionToOne Inc worth $28.8M as of Q4 2025.
  • BillionToOne Inc was a new Vanguard Group position in Q4 2025.
  • BillionToOne Inc made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #2448 holding.
  • 91 funds tracked by Wall St. Rank held BillionToOne Inc as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.