Latest Period
Q2 2026
Security Snapshot
RadNet, Inc. - Common Stock, $0.0001 par value (RDNT) Institutional Ownership
CUSIP: 750491102
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
325
Shares (Excl. Options)
81,298,061
Price
$61.67
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- Security type / class
- Equity / Common Stock, $0.0001 par value
- Symbol
- RDNT on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 81,298,061
- Total 13F value
- $5,021,542,134
- Portfolio coverage rank
- 0%
- Share change
- +4,235,339
- Value change
- +$270,945,601
- Number of holders
- 325
- Shares outstanding
- 78,176,742
- SEC-reported price per share
- $63.37
- Insider filing price
- $63.37
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- RDNT - RadNet, Inc. - Common Stock, $0.0001 par value is tracked under CUSIP 750491102.
- 325 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 340 to 325 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $4,309,768,509 to $5,021,542,134.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 325 institutions filings for Q2 2026.
Security key
750491102
Latest holder period
Q2 2026
13F holders
325
13D/G owners
4
CIK / CUSIP context first
Open Q2 2026 holders
RDNT full holder history
RadNet, Inc. SEC filings
RadNet, Inc. company facts
RadNet, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 750491102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
RDNT
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 12% | $704,993,027 | 9,250,663 | BlackRock, Inc. | 30 Sep 2025 | |||
| RTW INVESTMENTS, LP | 6.2% | +22% | $328,769,161 | +$61,620,706 | 4,846,958 | +23% | RTW Investments, LP | 30 Jun 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 5.4% | $232,296,937 | 4,154,837 | T. Rowe Price Associates, Inc. | 31 Mar 2026 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1% | $220,886,222 | 3,952,160 | Vanguard Portfolio Management | 31 Mar 2026 |
As of 30 Jun 2026, 325 institutional investors reported holding 81,298,061 shares of RadNet, Inc. - Common Stock, $0.0001 par value (RDNT). This represents 104% of the company’s total 78,176,742 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
72%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 14% | 10,957,808 | +9.2% | 0.01% | $675,768,006 |
| RTW INVESTMENTS, LP | 6.2% | 4,846,958 | +13% | 2.6% | $298,911,900 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 5.8% | 4,501,195 | +8.3% | 0.03% | $277,589,000 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.2% | 4,066,931 | +4.3% | 0.01% | $250,807,635 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.1% | 3,193,565 | +2.7% | 0% | $196,947,154 |
| BECK MACK & OLIVER LLC | 4% | 3,163,592 | -0.08% | 3.8% | $195,098,719 |
| STATE STREET CORP | 3.6% | 2,842,457 | +7.2% | 0.01% | $175,189,720 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 1,858,508 | +7.8% | 0.01% | $114,635,615 |
| Invesco Ltd. | 2.1% | 1,641,292 | +0.48% | 0.01% | $101,218,478 |
| AMERICAN CENTURY COMPANIES INC | 2.1% | 1,618,424 | +79% | 0.04% | $99,808,315 |
| Clearbridge Investments, LLC | 2% | 1,546,652 | +21% | 0.08% | $95,382,033 |
| DIMENSIONAL FUND ADVISORS LP | 1.9% | 1,491,040 | +8.1% | 0.02% | $91,938,537 |
| Hood River Capital Management LLC | 1.9% | 1,456,205 | +3.2% | 0.65% | $89,804,162 |
| JB CAPITAL PARTNERS LP | 1.8% | 1,424,061 | 0% | 14% | $87,821,842 |
| BAMCO INC /NY/ | 1.6% | 1,260,992 | +56% | 0.12% | $77,765,377 |
| Van Berkom & Associates Inc. | 1.5% | 1,193,068 | +16% | 2.4% | $73,577,000 |
| GOLDMAN SACHS GROUP INC | 1.5% | 1,178,372 | -1% | 0.01% | $72,670,185 |
| Alyeska Investment Group, L.P. | 1.5% | 1,171,721 | -11% | 0.19% | $72,260,034 |
| Defiance ETFs, LLC | 1.5% | 1,143,622 | +110% | 1% | $75,044,476 |
| Penserra Capital Management LLC | 1.5% | 1,143,622 | +110% | 0.54% | $70,527,000 |
| PRINCIPAL FINANCIAL GROUP INC | 1.3% | 1,052,356 | -5.3% | 0.03% | $64,898,794 |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1.2% | 975,542 | +83% | 0.2% | $60,161,675 |
| MORGAN STANLEY | 1.2% | 931,113 | +9.5% | 0% | $57,421,788 |
| NORTHERN TRUST CORP | 1% | 813,056 | +8.9% | 0.01% | $50,141,163 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1% | 792,282 | +3.2% | 0.01% | $48,860,031 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 81,298,061 | $5,021,542,134 | +$270,945,601 | $61.67 | 325 |
| 2026 Q1 | 77,095,927 | $4,309,768,509 | -$3,618,067 | $55.89 | 340 |
| 2025 Q4 | 76,223,698 | $5,440,647,314 | +$107,811,891 | $71.35 | 341 |
| 2025 Q3 | 74,117,096 | $5,650,834,032 | +$284,022,490 | $76.21 | 326 |
| 2025 Q2 | 70,905,299 | $4,034,464,486 | +$150,437,609 | $56.91 | 326 |
| 2025 Q1 | 68,288,373 | $3,396,956,782 | +$155,222,910 | $49.72 | 302 |
| 2024 Q4 | 64,315,643 | $4,493,318,936 | +$39,253,825 | $69.84 | 327 |
| 2024 Q3 | 63,697,057 | $4,421,272,087 | +$181,481,630 | $69.39 | 300 |
| 2024 Q2 | 61,184,391 | $3,605,178,244 | +$100,119,449 | $58.92 | 275 |
| 2024 Q1 | 59,654,001 | $2,902,884,328 | +$331,719,856 | $48.66 | 271 |
| 2023 Q4 | 53,353,765 | $1,855,208,524 | +$26,147,865 | $34.77 | 213 |
| 2023 Q3 | 52,816,705 | $1,489,029,059 | +$33,857,606 | $28.19 | 189 |
| 2023 Q2 | 50,826,091 | $1,657,822,513 | +$357,165,910 | $32.62 | 182 |
| 2023 Q1 | 39,962,793 | $1,000,578,016 | +$12,281,386 | $25.03 | 148 |
| 2022 Q4 | 39,552,373 | $744,807,701 | +$4,406,427 | $18.83 | 145 |
| 2022 Q3 | 39,268,471 | $799,025,645 | +$7,472,877 | $20.35 | 145 |
| 2022 Q2 | 38,907,018 | $672,576,366 | +$19,280,324 | $17.28 | 140 |
| 2022 Q1 | 37,898,816 | $847,483,854 | +$34,952,087 | $22.37 | 157 |
| 2021 Q4 | 36,078,664 | $1,084,746,085 | +$22,839,023 | $30.11 | 164 |
| 2021 Q3 | 35,331,527 | $1,035,436,669 | -$13,789,344 | $29.31 | 173 |
| 2021 Q2 | 35,697,383 | $1,202,738,527 | +$23,733,089 | $33.69 | 165 |
| 2021 Q1 | 35,146,548 | $764,511,328 | +$11,561,688 | $21.75 | 140 |
| 2020 Q4 | 34,676,721 | $678,040,983 | -$865,977 | $19.57 | 136 |
| 2020 Q3 | 34,869,831 | $535,065,200 | +$574,603 | $15.35 | 131 |
| 2020 Q2 | 34,757,896 | $551,484,203 | -$6,575,937 | $15.87 | 130 |