George Soros’s BillionToOne Inc BLLN Stock Holding History

George Soros’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	–	Sell	-14,500	Closed	-$1.14M	–	345
2026 Q1	$1.14M	Hold	14,500	–	–	0.01%	225
2025 Q4	$1.19M	Buy	+14,500	New	+$1.47M	0.01%	209

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

George Soros's BLLN Position: Q2 2026 in Review

George Soros sold out of BillionToOne Inc (BLLN) in Q2 2026, closing a stake of 14,500 shares — an estimated $1.14M sold.

George Soros first reported a position in BLLN in Q4 2025 and held it in 2 quarters. The position peaked at $1.19M in Q4 2025. 157 funds tracked by Wall St. Rank hold BLLN as of Q2 2026.

George Soros reported no remaining BillionToOne Inc position as of Q2 2026 after selling out during the quarter.
George Soros sold 14,500 BillionToOne Inc shares in Q2 2026, an estimated $1.14M.
George Soros first reported a position in BillionToOne Inc in Q4 2025 and held it in 2 quarters.
George Soros's BillionToOne Inc position peaked at $1.19M in Q4 2025.
157 funds tracked by Wall St. Rank held BillionToOne Inc as of Q2 2026.

Based on Soros Fund Management's 13F filing for Q2 2026, filed 14 Aug 2026.