Russell Investments Group
BLLN

Russell Investments Group’s BillionToOne Inc BLLN Stock Holding History

Russell Investments Group’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
Q2 		$3.49M Buy
29,074
+10,415
+56% +$951K ﹤0.01% 1735
2026
Q1 		$1.47M Buy
+18,659
New +$1.53M ﹤0.01% 2029

Other funds holding BLLN

ASP
Adams Street Partners Chicago, Illinois $443M AUM 49.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Russell Investments Group's BLLN Position: Q2 2026 in Review

Russell Investments Group increased its BillionToOne Inc (BLLN) stake by 56% in Q2 2026, buying an estimated $951K and bringing the position to 29,074 shares worth $3.49M. The position accounts for ﹤0.01% of the portfolio, ranked #1735.

Russell Investments Group first reported a position in BLLN in Q1 2026 and has held it in 2 quarters since. 157 funds tracked by Wall St. Rank hold BLLN as of Q2 2026.

  • Russell Investments Group held 29,074 shares of BillionToOne Inc worth $3.49M as of Q2 2026.
  • Russell Investments Group bought 10,415 BillionToOne Inc shares in Q2 2026, an estimated $951K.
  • BillionToOne Inc made up ﹤0.01% of Russell Investments Group's portfolio in Q2 2026, its #1735 holding.
  • Russell Investments Group first reported a position in BillionToOne Inc in Q1 2026 and has held it in 2 quarters since.
  • 157 funds tracked by Wall St. Rank held BillionToOne Inc as of Q2 2026.

Based on Russell Investments Group's 13F filing for Q2 2026, filed 6 Aug 2026.