Morgan Stanley
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Morgan Stanley’s BillionToOne Inc BLLN Stock Holding History

Morgan Stanley’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 		$2.21M Buy
18,421
+5,835
+46% +$533K ﹤0.01% 4800
2026
Q1 		$994K Buy
12,586
+8,987
+250% +$736K ﹤0.01% 5144
2025
Q4 		$295K Buy
+3,599
New +$365K ﹤0.01% 5761

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
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Wasatch Advisors
Wasatch Advisors Salt Lake City, Utah $13.5B AUM 16.58% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Morgan Stanley's BLLN Position: Q2 2026 in Review

Morgan Stanley increased its BillionToOne Inc (BLLN) stake by 46% in Q2 2026, buying an estimated $533K and bringing the position to 18,421 shares worth $2.21M. The position accounts for ﹤0.01% of the portfolio, ranked #4800.

Morgan Stanley 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.

  • Morgan Stanley held 18,421 shares of BillionToOne Inc worth $2.21M as of Q2 2026.
  • Morgan Stanley bought 5,835 BillionToOne Inc shares in Q2 2026, an estimated $533K.
  • BillionToOne Inc made up ﹤0.01% of Morgan Stanley's portfolio in Q2 2026, its #4800 holding.
  • Morgan Stanley 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 Morgan Stanley's 13F filing for Q2 2026, filed 13 Aug 2026.