Jeff Yass’s BillionToOne Inc BLLN Stock Holding History

Jeff Yass’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	$3.25M	Buy	27,100 +13,200	+95%	+$1.21M	﹤0.01%	5446
2026 Q1	$1.1M	Buy	+13,900	New	+$1.14M	﹤0.01%	7638

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 $15.3B AUM 25.06% 1-Year Est. Return

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

Jeff Yass's BLLN Position: Q2 2026 in Review

Jeff Yass increased its BillionToOne Inc (BLLN) stake by 337% in Q2 2026, buying an estimated $3.85M and bringing the position to 54,598 shares worth $6.55M. The position accounts for ﹤0.01% of the portfolio, ranked #4117.

Jeff Yass 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.

Jeff Yass held 54,598 shares of BillionToOne Inc worth $6.55M as of Q2 2026.
Jeff Yass bought 42,112 BillionToOne Inc shares in Q2 2026, an estimated $3.85M.
BillionToOne Inc made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #4117 holding.
Jeff Yass 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 Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.