BHM MERRILL LYNCH & CO INC BIOTECH
MERRILL LYNCH & CO INC BIOTECH (BHM) Institutional Ownership
What the institutions did with BHM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Cambridge Investment Research Advisors, Inc. | 284.3K | 22.2% |
| Quinn Opportunity Partners LLC | 228.3K | 17.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 148.4K | 11.6% |
| Arkadios Wealth Advisors | 121.8K | 9.5% |
| MILLENNIUM MANAGEMENT LLC | 85.4K | 6.7% |
| TUDOR INVESTMENT CORP ET AL | 66.8K | 5.2% |
| RBF Capital, LLC | 58.0K | 4.5% |
| BlackRock, Inc. | 53.8K | 4.2% |
| DIMENSIONAL FUND ADVISORS LP | 39.9K | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 38.9K | 3.0% |
| SNS Financial Group, LLC | 35.1K | 2.7% |
| DEARBORN PARTNERS LLC | 24.2K | 1.9% |
| VANGUARD FIDUCIARY TRUST CO | 19.7K | 1.5% |
| Ritter Daniher Financial Advisory LLC / DE | 17.6K | 1.4% |
| STATE STREET CORP | 14.9K | 1.2% |
| RENAISSANCE TECHNOLOGIES LLC | 14.5K | 1.1% |
| CSS LLC/IL | 12.2K | 1.0% |
| UBS Group AG | 5.4K | 0.4% |
| BARCLAYS PLC | 4.7K | 0.4% |
| MORGAN STANLEY | 1.6K | 0.1% |
| Vanguard Global Advisers, LLC | 1.3K | 0.1% |
| Daytona Street Capital LLC | 768 | 0.1% |
| Tower Research Capital LLC (TRC) | 528 | 0.0% |
| VISION FINANCIAL MARKETS LLC | 201 | 0.0% |
| IFG Advisory, LLC | 129 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Cambridge Investment Research Advisors, Inc. | Increased | 142.0K | 284.3K | +142.3K |
| SNS Financial Group, LLC | New | 0 | 35.1K | +35.1K |
| NORTHERN TRUST CORP | Sold Out | 18.8K | 0 | -18.8K |
| Arkadios Wealth Advisors | Increased | 109.7K | 121.8K | +12.1K |
| DEARBORN PARTNERS LLC | Increased | 14.1K | 24.2K | +10.2K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 88.1K | 85.4K | -2.7K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 146.8K | 148.4K | +1.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 40.4K | 38.9K | -1.6K |
| BlackRock, Inc. | Increased | 52.8K | 53.8K | +990 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 40.8K | 39.9K | -866 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 15.0K | 14.5K | -499 |
| NISA INVESTMENT ADVISORS, LLC | Sold Out | 350 | 0 | -350 |
| MORGAN STANLEY | Reduced | 1.8K | 1.6K | -210 |
| Ritter Daniher Financial Advisory LLC / DE | Increased | 17.4K | 17.6K | +185 |
| MAI Capital Management | Sold Out | 179 | 0 | -179 |
| VANGUARD FIDUCIARY TRUST CO | Increased | 19.5K | 19.7K | +129 |
| IFG Advisory, LLC | New | 0 | 129 | +129 |
| OSAIC HOLDINGS, INC. | New | 0 | 76 | +76 |
| Advisory Services Network, LLC | Sold Out | 75 | 0 | -75 |
| Arax Advisory Partners | Increased | 25 | 71 | +46 |
| Magnolia Wealth Management, LLC | Sold Out | 20 | 0 | -20 |
| BARCLAYS PLC | Increased | 4.7K | 4.7K | +13 |
| Tower Research Capital LLC (TRC) | Reduced | 538 | 528 | -10 |
| VISION FINANCIAL MARKETS LLC | Increased | 199 | 201 | +2 |
| Inspire Investing, LLC | Increased | 20 | 21 | +1 |
| WELLS FARGO & COMPANY/MN | New | 0 | 1 | +1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.