RDNT RadNet Inc.
RadNet Inc. (RDNT) Institutional Ownership
What the institutions did with RDNT 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 September 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 |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 1.8M | 19.7% |
| DIMENSIONAL FUND ADVISORS LP | 1.5M | 15.9% |
| PRINCIPAL FINANCIAL GROUP INC | 965.5K | 10.3% |
| Van Berkom & Associates Inc. | 846.9K | 9.0% |
| Allspring Global Investments Holdings, LLC | 588.9K | 6.3% |
| DEUTSCHE BANK AG\ | 489.5K | 5.2% |
| Bank of New York Mellon Corp | 414.6K | 4.4% |
| E. Ohman J:or Asset Management AB | 397.9K | 4.2% |
| Penn Capital Management Company, LLC | 250.2K | 2.7% |
| Thrivent Financial for Lutherans | 193.4K | 2.1% |
| AGF MANAGEMENT LTD | 184.9K | 2.0% |
| SEB Asset Management AB | 180.3K | 1.9% |
| Temasek Holdings (Private) Ltd | 130.1K | 1.4% |
| BARCLAYS PLC | 125.7K | 1.3% |
| HARBOR CAPITAL ADVISORS, INC. | 100.8K | 1.1% |
| KEYBANK NATIONAL ASSOCIATION/OH | 81.9K | 0.9% |
| Russell Investments Group, Ltd. | 74.5K | 0.8% |
| Knights of Columbus Asset Advisors LLC | 42.8K | 0.5% |
| Prescott Group Capital Management, L.L.C. | 41.6K | 0.4% |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | 40.7K | 0.4% |
| Creative Planning | 38.9K | 0.4% |
| Illinois Municipal Retirement Fund | 38.8K | 0.4% |
| Lido Advisors, LLC | 37.3K | 0.4% |
| OAK RIDGE INVESTMENTS LLC | 36.4K | 0.4% |
| Lisanti Capital Growth, LLC | 34.0K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Van Berkom & Associates Inc. | Reduced | 1.2M | 846.9K | -346.2K |
| CITIGROUP INC | Reduced | 131.3K | 18.4K | -112.9K |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 1.1M | 965.5K | -86.8K |
| KEYBANK NATIONAL ASSOCIATION/OH | Increased | 15.2K | 81.9K | +66.7K |
| D.A. DAVIDSON & CO. | Sold Out | 65.7K | 0 | -65.7K |
| E. Ohman J:or Asset Management AB | Reduced | 453.0K | 397.9K | -55.1K |
| Temasek Holdings (Private) Ltd | Increased | 87.0K | 130.1K | +43.2K |
| Lisanti Capital Growth, LLC | New | 0 | 34.0K | +34.0K |
| BARCLAYS PLC | Increased | 96.1K | 125.7K | +29.6K |
| Amundi | Increased | 3.7K | 28.4K | +24.7K |
| Penn Capital Management Company, LLC | Reduced | 271.4K | 250.2K | -21.1K |
| Thrivent Financial for Lutherans | Increased | 173.6K | 193.4K | +19.7K |
| Allspring Global Investments Holdings, LLC | Reduced | 608.1K | 588.9K | -19.2K |
| Sterling Capital Management LLC | Reduced | 19.2K | 2.4K | -16.8K |
| HARBOR CAPITAL ADVISORS, INC. | Reduced | 116.5K | 100.8K | -15.7K |
| NIXON PEABODY TRUST CO | New | 0 | 15.0K | +15.0K |
| INDEPENDENT FINANCIAL GROUP, LLC | New | 0 | 14.9K | +14.9K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | Increased | 5.1K | 19.8K | +14.7K |
| Creative Planning | Increased | 24.6K | 38.9K | +14.3K |
| StoneX Group Inc. | Sold Out | 13.4K | 0 | -13.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.9M | 1.8M | -13.3K |
| AlphaCore Capital LLC | New | 0 | 12.3K | +12.3K |
| State of Alaska, Department of Revenue | Reduced | 27.6K | 15.6K | -12.0K |
| Counterpoint Mutual Funds LLC | New | 0 | 9.8K | +9.8K |
| Russell Investments Group, Ltd. | Reduced | 83.5K | 74.5K | -9.0K |
| LPL Financial LLC | Increased | 18.0K | 26.0K | +8.1K |
| DEUTSCHE BANK AG\ | Reduced | 496.0K | 489.5K | -6.4K |
| Bank of New York Mellon Corp | Reduced | 420.6K | 414.6K | -5.9K |
| STRS OHIO | Increased | 3.1K | 8.6K | +5.5K |
| Maryland State Retirement & Pension System | Increased | 10.3K | 15.7K | +5.4K |
| ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ | Reduced | 12.9K | 7.5K | -5.4K |
| Diversified Trust Co | New | 0 | 5.2K | +5.2K |
| Wedmont Private Capital | New | 0 | 4.7K | +4.7K |
| Vise Technologies, Inc. | New | 0 | 4.7K | +4.7K |
| VIRGINIA RETIREMENT SYSTEMS ET Al | Sold Out | 4.3K | 0 | -4.3K |
| Indivisible Partners | New | 0 | 4.0K | +4.0K |
| COMMONWEALTH EQUITY SERVICES, LLC | New | 0 | 3.9K | +3.9K |
| Illinois Municipal Retirement Fund | Increased | 35.1K | 38.8K | +3.7K |
| AGF MANAGEMENT LTD | Reduced | 188.6K | 184.9K | -3.7K |
| Abel Hall, LLC | New | 0 | 3.1K | +3.1K |
| CHOREO, LLC | New | 0 | 3.0K | +3.0K |
| Modera Wealth Management, LLC | New | 0 | 3.0K | +3.0K |
| Fortis Group Advisors, LLC | New | 0 | 3.0K | +3.0K |
| State of New Jersey Common Pension Fund D | Reduced | 25.0K | 22.6K | -2.4K |
| Inspire Investing, LLC | Reduced | 11.1K | 9.1K | -2.0K |
| SIMPLEX TRADING, LLC | Increased | 672 | 2.7K | +2.0K |
| Gradient Investments LLC | Reduced | 21.0K | 19.5K | -1.5K |
| US BANCORP \DE\ | Increased | 5.1K | 6.5K | +1.4K |
| OAK RIDGE INVESTMENTS LLC | Increased | 35.3K | 36.4K | +1.1K |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC | Increased | 26.8K | 27.8K | +1.0K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.5M | 1.5M | -988 |
| Fulton Bank, N.A. | Reduced | 10.0K | 9.2K | -864 |
| OPPENHEIMER ASSET MANAGEMENT INC. | Increased | 6.0K | 6.8K | +834 |
| Louisiana State Employees Retirement System | Reduced | 31.0K | 30.2K | -800 |
| Eurizon Capital SGR S.p.A. | Sold Out | 687 | 0 | -687 |
| Sumitomo Mitsui DS Asset Management Company, Ltd | Increased | 3.8K | 4.4K | +666 |
| AMALGAMATED BANK | Reduced | 19.0K | 18.4K | -651 |
| ARIZONA STATE RETIREMENT SYSTEM | Increased | 18.2K | 18.8K | +631 |
| EVERGREEN CAPITAL MANAGEMENT LLC | Increased | 5.9K | 6.5K | +600 |
| ASSETMARK, INC | Increased | 3.1K | 3.6K | +557 |
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.