Marshall Wace
BLLN icon

Marshall Wace’s BillionToOne Inc BLLN Stock Holding History

Marshall Wace’s Portfolio BLLN Stock Details BLLN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$34.2M Buy
321,546
+276,884
+620% +$31.1M 0.03% 462
2026
Q2 		$5.36M Buy
+44,662
New +$4.08M ﹤0.01% 1337
2026
Q1 		– Sell
-20,902
Closed -$1.71M – 3795
2025
Q4 		$1.71M Buy
+20,902
New +$2.12M ﹤0.01% 1653

Other funds holding BLLN

Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $106B AUM 2.29% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Wasatch Advisors
Wasatch Advisors Salt Lake City, Utah $13.5B AUM 16.58% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Emerald Advisers
Emerald Advisers Leola, Pennsylvania $3.64B AUM 71.19% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $148B AUM 31.56% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Marshall Wace's BLLN Position: Q3 2026 in Review

Marshall Wace increased its BillionToOne Inc (BLLN) stake by 620% in Q3 2026, buying an estimated $31.1M and bringing the position to 321,546 shares worth $34.2M. The position accounts for 0.03% of the portfolio, ranked #462.

Marshall Wace first reported a position in BLLN in Q4 2025 and has held it in 3 quarters since. 121 funds tracked by Wall St. Rank hold BLLN as of Q3 2026.

  • Marshall Wace held 321,546 shares of BillionToOne Inc worth $34.2M as of Q3 2026.
  • Marshall Wace bought 276,884 BillionToOne Inc shares in Q3 2026, an estimated $31.1M.
  • BillionToOne Inc made up 0.03% of Marshall Wace's portfolio in Q3 2026, its #462 holding.
  • Marshall Wace first reported a position in BillionToOne Inc in Q4 2025 and has held it in 3 quarters since.
  • 121 funds tracked by Wall St. Rank held BillionToOne Inc as of Q3 2026.

Based on Marshall Wace's 13F filing for Q3 2026, filed 13 Nov 2026.