ASP
BLLN

Adams Street Partners’s BillionToOne Inc BLLN Stock Holding History

Adams Street Partners’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
Q1 		$135M Hold
1,711,430
– – 51.9% 1
2025
Q4 		$140M Buy
+1,711,430
New +$174M 53.07% 1

Other funds holding BLLN

Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
CVM
Civilization Ventures Management Belvedere Tiburon, California $87.9M AUM
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
NA
NVP Associates Menlo Park, California $176M AUM 208.78% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

Adams Street Partners's BLLN Position: Q1 2026 in Review

Adams Street Partners held its BillionToOne Inc (BLLN) position steady in Q1 2026 at 1,711,430 shares worth $135M. The position accounts for 51.9% of the portfolio, ranked #1.

Adams Street Partners first reported a position in BLLN in Q4 2025 and has held it in 2 quarters since. The position peaked at $140M in Q4 2025. 91 funds tracked by Wall St. Rank hold BLLN as of Q1 2026.

  • Adams Street Partners held 1,711,430 shares of BillionToOne Inc worth $135M as of Q1 2026.
  • Adams Street Partners left its BillionToOne Inc share count unchanged in Q1 2026.
  • BillionToOne Inc made up 51.9% of Adams Street Partners's portfolio in Q1 2026, its #1 holding.
  • Adams Street Partners first reported a position in BillionToOne Inc in Q4 2025 and has held it in 2 quarters since.
  • Adams Street Partners's BillionToOne Inc position peaked at $140M in Q4 2025.
  • 91 funds tracked by Wall St. Rank held BillionToOne Inc as of Q1 2026.

Based on Adams Street Partners's 13F filing for Q1 2026, filed 15 May 2026.