Bellevue Group’s BillionToOne Inc BLLN Stock Holding History

Bellevue 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	$1.27M	Hold	10,554	–	–	0.03%	100
2026 Q1	$833K	Sell	10,554 -35	-0.3%	-$2.87K	0.02%	95
2025 Q4	$867K	Buy	+10,589	New	+$1.07M	0.02%	114

Other funds holding BLLN

ASP

Adams Street Partners Chicago, Illinois $443M AUM 49.46% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $13.5B AUM 16.58% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Bellevue Group's BLLN Position: Q2 2026 in Review

Bellevue Group held its BillionToOne Inc (BLLN) position steady in Q2 2026 at 10,554 shares worth $1.27M. The position accounts for 0.03% of the portfolio, ranked #100.

Bellevue Group first reported a position in BLLN in Q4 2025 and has held it in 3 quarters since. 156 funds tracked by Wall St. Rank hold BLLN as of Q2 2026.

Bellevue Group held 10,554 shares of BillionToOne Inc worth $1.27M as of Q2 2026.
Bellevue Group left its BillionToOne Inc share count unchanged in Q2 2026.
BillionToOne Inc made up 0.03% of Bellevue Group's portfolio in Q2 2026, its #100 holding.
Bellevue Group first reported a position in BillionToOne Inc in Q4 2025 and has held it in 3 quarters since.
156 funds tracked by Wall St. Rank held BillionToOne Inc as of Q2 2026.

Based on Bellevue Group's 13F filing for Q2 2026, filed 14 Aug 2026.