Who owns IBB?
Institutional ownership of iShares Nasdaq Biotechnology Index Fund from Form 13F, Q2 2026
956 institutional managers reported holding iShares Nasdaq Biotechnology Index Fund (IBB) in Form 13F filings for Q2 2026, with 40,123,310 shares worth $7.7B. The largest reported holder was Bank of America Corp. Managers that filed both quarters cut a net 1,597,672 shares (-3.8%). 105 opened new positions and 72 sold out.
- Funds holding
- 956
- Value held
- $7.7B
- New / sold out
- 105 / 72
- Net shares, same filers
- -3.8%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of IBB
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| Bank of America Corp | $1.3B | 17.1% | 6,875,131 | Trimmed |
| Citigroup Inc | $905M | 11.9% | 4,760,709 | Trimmed |
| Morgan Stanley | $632M | 8.3% | 3,320,977 | Added |
| BNP Paribas Financial Markets | $422M | 5.5% | 2,217,939 | Trimmed |
| Two Sigma Investments, LP | $302M | 4.0% | 1,588,107 | Added |
| Goldman Sachs Group Inc | $224M | 2.9% | 1,176,177 | Trimmed |
| Envestnet Asset Management Inc | $214M | 2.8% | 1,122,659 | Trimmed |
| Raymond James Financial Inc | $200M | 2.6% | 1,050,594 | Added |
| Wells Fargo & Company | $196M | 2.6% | 1,029,643 | Added |
| Commerce Bank | $173M | 2.3% | 909,315 | Added |
| UBS Group AG | $164M | 2.1% | 862,373 | Added |
| LPL Financial LLC | $150M | 2.0% | 789,395 | Added |
| Royal Bank of Canada | $143M | 1.9% | 749,649 | Added |
| Healthcare of Ontario Pension Plan Trust Fund | $138M | 1.8% | 726,000 | Added |
| Truist Financial Corp | $129M | 1.7% | 677,353 | Added |
| WestEnd Advisors, LLC | $125M | 1.6% | 655,852 | Added |
| Janney Montgomery Scott LLC | $124M | 1.6% | 653,390 | Unchanged |
| JPMorgan Chase & Co | $120M | 1.6% | 630,190 | Trimmed |
| Barclays PLC | $100M | 1.3% | 526,245 | Added |
| PNC Financial Services Group, Inc. | $59.8M | 0.8% | 314,505 | Trimmed |
| Jefferies Financial Group Inc. | $57.5M | 0.8% | 302,306 | Unchanged |
| Victory Capital Management Inc | $44.6M | 0.6% | 234,310 | Added |
| Thrivent Financial for Lutherans | $39.7M | 0.5% | 208,618 | Trimmed |
| GFS Advisors, LLC | $35.9M | 0.1% | 52,175 | New |
| Stifel Financial Corp | $33.2M | 0.4% | 174,738 | Added |
Share of 13F holdings is each fund's shares as a share of the 40,123,310 IBB shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Two Sigma Investments, LP Added+$196M
- Morgan Stanley Added+$104M
- GFS Advisors, LLC New+$35.9M
- Wells Fargo & Company Added+$33.3M
- Healthcare of Ontario Pension Plan Trust Fund Added+$24.7M
- Itau Unibanco Holding S.A. New+$18.8M
- ExodusPoint Capital Management, LP New+$18.3M
- Barclays PLC Added+$14.4M
- LPL Financial LLC Added+$12.2M
- Horizon Wealth Management, LLC Added+$11.1M
Biggest sellers in Q2 2026
- JPMorgan Chase & Co Trimmed-$347M
- Thrivent Financial for Lutherans Trimmed-$107M
- Bank of America Corp Trimmed-$73.1M
- Citigroup Inc Trimmed-$68.8M
- D. E. Shaw & Co., Inc. Trimmed-$60.9M
- BNP Paribas Financial Markets Trimmed-$40.2M
- Cornerstone Advisors, LLC Sold out-$25.0M
- McElhenny Sheffield Capital Management, LLC Sold out-$24.0M
- Envestnet Asset Management Inc Trimmed-$19.8M
- Goldman Sachs Group Inc Trimmed-$18.9M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $711M and sold $970M; 234 added and 304 trimmed.
Questions about IBB ownership
- Who owns IBB stock?
- 956 institutional investment managers reported IBB positions in their Form 13F filings for Q2 2026, holding 40,123,310 shares worth $7.7B in total. Bank of America Corp reported the largest position.
- Are funds buying or selling IBB?
- In Q2 2026, 105 managers opened new IBB positions, 234 added, 304 trimmed and 72 sold out. Managers that filed in both quarters sold a net 1,597,672 shares.
- How current is this IBB institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to IBB by CUSIP. Options are left out. IBB news and filings · IBB insider trades · Top funds