Who Owns IBB?
iShares Biotechnology ETF — Institutional Ownership & 13F Holdings
$168.38
+3.03 (+1.83%)
Market Cap
$8.4B
Shares Outstanding
48,250,896
Institutional Holders
818
Total Inst. Value
$4.3B
% of Float Held
—
QoQ Holder Change
+248
Institutional data as of Q1 2025
New Positions
178
Closed Positions
79
Increased
169
Decreased
299
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | BANK OF AMERICA CORP /DE/ | $891.1M | 6,967,406 |
| 2 | Bank Julius Baer & Co. Ltd, Zurich | $637.1M | 4,407 |
| 3 | CITIGROUP INC | $410.3M | 3,208,144 |
| 4 | MORGAN STANLEY | $358.5M | 2,803,174 |
| 5 | UBS Group AG | $181.0M | 1,415,130 |
| 6 | BNP PARIBAS FINANCIAL MARKETS | $117.1M | 915,607 |
| 7 | WELLS FARGO & COMPANY/MN | $113.1M | 884,128 |
| 8 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $102.3M | 800,000 |
| 9 | ROYAL BANK OF CANADA | $97.8M | 764,355 |
| 10 | BARCLAYS PLC | $92.2M | 720,665 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| CITIGROUP INC | +1.4M | $410.3M |
| UBS Group AG | +313K | $181.0M |
| WELLS FARGO & COMPANY/MN | +204K | $113.1M |
| BARCLAYS PLC | +42K | $92.2M |
| JPMORGAN CHASE & CO | +164K | $61.2M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| MARTIN & CO INC /TN/ | -4.0M | $2.6M |
| JANE STREET GROUP, LLC | -1.7M | $32.8M |
| MORGAN STANLEY | -674K | $358.5M |
| BANK OF AMERICA CORP /DE/ | -522K | $891.1M |
| BNP PARIBAS FINANCIAL MARKETS | -450K | $117.1M |
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Frequently Asked Questions
How many institutional investors hold IBB?
As of Q1 2025, 818 institutional investors report holding IBB (iShares Biotechnology ETF) in their 13F filings.
Which hedge fund owns the most IBB?
The largest institutional holder of IBB is BANK OF AMERICA CORP /DE/ with $891.1M in shares.
Are institutions buying or selling IBB?
This quarter, 178 institutions opened new positions in IBB and 79 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.