Next Century Growth Investors’s BillionToOne Inc BLLN Stock Holding History

Next Century Growth Investors’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	$43.7M	Buy	364,467 +273,903	+302%	+$25M	2.32%	7
2026 Q1	$7.15M	Buy	90,564 +53,905	+147%	+$4.41M	0.52%	63
2025 Q4	$3M	Buy	+36,659	New	+$3.72M	0.21%	100

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

Next Century Growth Investors's BLLN Position: Q2 2026 in Review

Next Century Growth Investors increased its BillionToOne Inc (BLLN) stake by 302% in Q2 2026, buying an estimated $25M and bringing the position to 364,467 shares worth $43.7M. The position accounts for 2.32% of the portfolio, ranked #7.

Next Century Growth Investors 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.

Next Century Growth Investors held 364,467 shares of BillionToOne Inc worth $43.7M as of Q2 2026.
Next Century Growth Investors bought 273,903 BillionToOne Inc shares in Q2 2026, an estimated $25M.
BillionToOne Inc made up 2.32% of Next Century Growth Investors's portfolio in Q2 2026, its #7 holding.
Next Century Growth Investors 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 Next Century Growth Investors's 13F filing for Q2 2026, filed 14 Aug 2026.