Jim Simons’s BillionToOne Inc BLLN Stock Holding History

Jim Simons’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	$11.6M	Buy	96,600 +45,346	+88%	+$4.14M	0.02%	972
2026 Q1	$4.05M	Buy	+51,254	New	+$4.2M	0.01%	1492

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

Jim Simons's BLLN Position: Q2 2026 in Review

Jim Simons increased its BillionToOne Inc (BLLN) stake by 88% in Q2 2026, buying an estimated $4.14M and bringing the position to 96,600 shares worth $11.6M. The position accounts for 0.02% of the portfolio, ranked #972.

Jim Simons first reported a position in BLLN in Q1 2026 and has held it in 2 quarters since. 156 funds tracked by Wall St. Rank hold BLLN as of Q2 2026.

Jim Simons held 96,600 shares of BillionToOne Inc worth $11.6M as of Q2 2026.
Jim Simons bought 45,346 BillionToOne Inc shares in Q2 2026, an estimated $4.14M.
BillionToOne Inc made up 0.02% of Jim Simons's portfolio in Q2 2026, its #972 holding.
Jim Simons first reported a position in BillionToOne Inc in Q1 2026 and has held it in 2 quarters since.
156 funds tracked by Wall St. Rank held BillionToOne Inc as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.