BAMCO Inc
BLLN

BAMCO Inc’s BillionToOne Inc BLLN Stock Holding History

BAMCO Inc’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 		$89M Buy
742,093
+608
+0.1% +$55.5K 0.13% 77
2026
Q1 		$58.5M Buy
741,485
+571,485
+336% +$46.8M 0.18% 94
2025
Q4 		$13.9M Buy
+170,000
New +$17.2M 0.04% 219

Other funds holding BLLN

ASP
Adams Street Partners Chicago, Illinois $443M AUM 49.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return

BAMCO Inc's BLLN Position: Q2 2026 in Review

BAMCO Inc increased its BillionToOne Inc (BLLN) stake by 0.08% in Q2 2026, buying an estimated $55.5K and bringing the position to 742,093 shares worth $89M. The position accounts for 0.13% of the portfolio, ranked #77.

BAMCO Inc first reported a position in BLLN in Q4 2025 and has held it in 3 quarters since. 157 funds tracked by Wall St. Rank hold BLLN as of Q2 2026.

  • BAMCO Inc held 742,093 shares of BillionToOne Inc worth $89M as of Q2 2026.
  • BAMCO Inc bought 608 BillionToOne Inc shares in Q2 2026, an estimated $55.5K.
  • BillionToOne Inc made up 0.13% of BAMCO Inc's portfolio in Q2 2026, its #77 holding.
  • BAMCO Inc first reported a position in BillionToOne Inc in Q4 2025 and has held it in 3 quarters since.
  • 157 funds tracked by Wall St. Rank held BillionToOne Inc as of Q2 2026.

Based on BAMCO Inc's 13F filing for Q2 2026, filed 14 Aug 2026.