Who owns RadNet, Inc.?
Institutional ownership of RDNT from SEC Form 13F filings across 234 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
234
13F holders
$3.09B
value, 2026 filers
71.7%
of shares outstanding (56.4M sh)
34
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of RDNT's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 11.0M | $675.8M | 0.0% | 13.9% | +9.2% |
| 2 | PRICE T ROWE ASSOCIATES INC /MD/ | 4.5M | $277,589 | 0.0% | 5.7% | +8.3% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4.1M | $250.8M | 0.0% | 5.2% | +4.3% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 3.2M | $196.9M | 0.0% | 4.1% | -48.7% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 1.9M | $114.6M | 0.0% | 2.4% | +7.8% |
| 6 | Invesco Ltd. | 1.6M | $101.2M | 0.0% | 2.1% | +0.5% |
| 7 | AMERICAN CENTURY COMPANIES INC | 1.6M | $99.8M | 0.0% | 2.1% | +79.4% |
| 8 | Clearbridge Investments, LLC | 1.5M | $95.4M | 0.1% | 2% | +21.0% |
| 9 | BAMCO INC /NY/ | 1.3M | $77.8M | 0.1% | 1.6% | +55.7% |
| 10 | GOLDMAN SACHS GROUP INC | 1.2M | $72.7M | 0.0% | 1.5% | -1.0% |
| 11 | Penserra Capital Management LLC | 1.1M | $70,527 | 0.5% | 1.5% | +109.7% |
| 12 | Defiance ETFs, LLC | 1.1M | $75.0M | 1.0% | 1.5% | +109.7% |
| 13 | PRINCIPAL FINANCIAL GROUP INC | 1.1M | $64.9M | 0.0% | 1.3% | -5.3% |
| 14 | MORGAN STANLEY | 931,114 | $57.4M | 0.0% | 1.2% | +9.5% |
| 15 | NORTHERN TRUST CORP | 813,056 | $50.1M | 0.0% | 1% | +8.9% |
| 16 | Sixth Street Partners Management Company, L.P.NEW | 792,282 | $48.9M | 8.4% | 1% | new |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 792,282 | $48.9M | 0.0% | 1% | +3.2% |
| 18 | Rockefeller Capital Management L.P. | 757,990 | $46.7M | 0.1% | 1% | +7.8% |
| 19 | AMERIPRISE FINANCIAL INC | 745,603 | $46.0M | 0.0% | 0.9% | -17.1% |
| 20 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 635,813 | $39.2M | 0.0% | 0.8% | -5.6% |
| 21 | Nuveen, LLC | 631,797 | $39.0M | 0.0% | 0.8% | -4.5% |
| 22 | UBS Group AG | 619,635 | $38.2M | 0.0% | 0.8% | +27.3% |
| 23 | Allspring Global Investments Holdings, LLC | 608,144 | $39.9M | 0.1% | 0.8% | -29.7% |
| 24 | VOYA INVESTMENT MANAGEMENT LLC | 604,907 | $37.3M | 0.0% | 0.8% | +44.9% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 507,472 | $31.3M | 0.0% | 0.6% | +6.5% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.