BlackRock
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BlackRock’s iShares Biotechnology ETF IBB Stock Holding History

BlackRock’s Portfolio IBB Stock Details IBB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q3 		– Sell
-395,900
Closed -$54.3M – 5272
2024
Q2 		$54.3M Buy
+395,900
New +$52.8M ﹤0.01% 2362

Other funds holding IBB

Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Citigroup
Citigroup New York $235B AUM 32.99% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
BNP Paribas Financial Markets
BNP Paribas Financial Markets Paris, France $206B AUM 31.61% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $374B AUM 17.66% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
CB
Commerce Bank Kansas City, Missouri $20.7B AUM 23.76% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

BlackRock's IBB Position: Q1 2026 in Review

BlackRock increased its iShares Biotechnology ETF (IBB) stake by 27% in Q1 2026, buying an estimated $198K and bringing the position to 5,374 shares worth $907K. The position accounts for ﹤0.01% of the portfolio, ranked #4370.

BlackRock first reported a position in IBB in Q4 2015 and has held it in 27 quarters since. The position peaked at $57.6M in Q3 2024. 917 funds tracked by Wall St. Rank hold IBB as of Q1 2026.

  • BlackRock held 5,374 shares of iShares Biotechnology ETF worth $907K as of Q1 2026.
  • BlackRock bought 1,157 iShares Biotechnology ETF shares in Q1 2026, an estimated $198K.
  • iShares Biotechnology ETF made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #4370 holding.
  • BlackRock first reported a position in iShares Biotechnology ETF in Q4 2015 and has held it in 27 quarters since.
  • BlackRock's iShares Biotechnology ETF position peaked at $57.6M in Q3 2024.
  • 917 funds tracked by Wall St. Rank held iShares Biotechnology ETF as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.