RADNET INC RDNT
COM · Common Stock · CUSIP 750491102 · ISIN US7504911022
- SectorHealth care
- IndustryServices-Medical Laboratories
- HeadquartersLos Angeles, CA
- Websiteradnet.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($233.0k this quarter). Holder counts are more reliable. Shares outstanding: 57.4m as of 2022-11-04, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $20.35. Options: 5 managers hold calls ($2.2m notional), 5 hold puts ($2.8m).
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | $1.3m64.9k shares |
| JANE STREET GROUP, LLC | — | $362.0k17.8k shares |
| CITADEL ADVISORS LLC | — | $289.0k14.2k shares |
| SIMPLEX TRADING, LLC | — | $195.0k9.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | — | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | $1.6m78.6k shares |
| CITADEL ADVISORS LLC | — | $596.0k29.3k shares |
| JANE STREET GROUP, LLC | — | $433.0k21.3k shares |
| SIMPLEX TRADING, LLC | — | $193.0k9.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | — | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-10-17 | 12.0% |
| RTW INVESTMENTS, LP 13G · institution +1.1 pts · filed 2026-08-14 | 6.2% |
| PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution new · filed 2026-05-15 | 5.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q3 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2020 | 0 | — | 0 | — | — |
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 1 | $2.1m | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 2 | $456.2k | — |
| Q3 2022 | 0 | — | 0 | — | — |
None reported in Q3 2022.
Holders, Q3 2022
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.00% of their portfolio | 6.6m $135.0m | — |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.3m $67.3m | — |
| BECK MACK & OLIVER LLC 1.99% of their portfolio | 3.0m $61.5m | — |
| EDMOND DE ROTHSCHILD HOLDING S.A. 1.16% of their portfolio | 2.2m $44.1m | — |
| JB CAPITAL PARTNERS LP 12.55% of their portfolio | 2.1m $42.6m | — |
| Point72 Asset Management, L.P. 0.16% of their portfolio | 1.8m $36.9m | — |
| Global Alpha Capital Management Ltd. 3.45% of their portfolio | 1.7m $34.5m | — |
| STATE STREET CORP 0.00% of their portfolio | 1.6m $32.3m | — |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 1.5m $30.5m | — |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 975.2k $19.8m | — |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 898.5k $18.3m | — |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 1.25% of their portfolio | 883.3k $18.0m | — |
| Assenagon Asset Management S.A. 0.07% of their portfolio | 827.8k $16.8m | — |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.12% of their portfolio | 735.2k $15.0m | — |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 665.7k $13.5m | — |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 653.1k $13.3m | — |
| Advantage Alpha Capital Partners LP 1.96% of their portfolio | 524.7k $10.7m | — |
| NORTHERN TRUST CORP 0.00% of their portfolio | 514.3k $10.5m | — |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 471.7k $9.6m | — |
| ROYCE & ASSOCIATES LP 0.11% of their portfolio | 458.9k $9.3m | — |
| Pier Capital, LLC 1.56% of their portfolio | 446.9k $9.1m | — |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 445.7k $9.1m | — |
| Bank of New York Mellon Corp 0.00% of their portfolio | 419.1k $8.5m | — |
| Voce Capital Management LLC 4.80% of their portfolio | 363.3k $7.4m | — |
| Invesco Ltd. 0.00% of their portfolio | 328.1k $6.7m | — |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 315.7k $6.4m | — |
| ROBOTTI ROBERT 1.51% of their portfolio | 312.3k $6.4m | — |
| MORGAN STANLEY 0.00% of their portfolio | 292.9k $6.0m | — |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 254.2k $5.2m | — |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 252.2k $5.1m | — |
| Woodline Partners LP 0.07% of their portfolio | 232.2k $4.7m | — |
| PUTNAM INVESTMENTS LLC 0.01% of their portfolio | 181.6k $3.7m | — |
| Rockefeller Capital Management L.P. 0.02% of their portfolio | 181.5k $3.7m | — |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 171.3k $3.5m | — |
| Cheyne Capital Management (UK) LLP 6.25% of their portfolio | 143.6k $2.9m | — |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 132.1k $2.7m | — |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 131.0k $2.7m | — |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 124.3k $2.5m | — |
| Swiss National Bank 0.00% of their portfolio | 120.0k $2.4m | — |
| Legal & General Group Plc 0.00% of their portfolio | 116.2k $2.4m | — |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 110.6k $2.3m | — |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 108.0k $2.2m | — |
| First Eagle Investment Management, LLC 0.01% of their portfolio | 103.1k $2.1m | — |
| CITIGROUP INC 0.00% of their portfolio | 102.3k $2.1m | — |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 100.7k $2.0m | — |
| RAYMOND JAMES TRUST N.A. 0.07% of their portfolio | 93.6k $1.9m | — |
| Public Sector Pension Investment Board 0.02% of their portfolio | 89.3k $1.8m | — |
| KEYBANK NATIONAL ASSOCIATION/OH 0.01% of their portfolio | 88.6k $1.8m | — |
| Alberta Investment Management Corp 0.01% of their portfolio | 72.9k $1.5m | — |
| Federation des caisses Desjardins du Quebec 0.02% of their portfolio | 71.5k $1.5m | — |
| WHITE PINE CAPITAL LLC 0.59% of their portfolio | 70.1k $1.4m | — |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 65.4k $1.3m | — |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 63.3k $1.3m | — |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 61.0k $1.2m | — |
| Tamarack Advisers, LP 0.72% of their portfolio | 60.0k $1.2m | — |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 58.6k $1.2m | — |
| PARADIGM CAPITAL MANAGEMENT INC/NY 0.08% of their portfolio | 55.2k $1.1m | — |
| OBERWEIS ASSET MANAGEMENT INC/ 0.25% of their portfolio | 51.9k $1.1m | — |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 50.4k $1.0m | — |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 49.3k $962.0k | — |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 49.3k $1.0m | — |
| Candriam S.C.A. 0.01% of their portfolio | 47.9k $974.0k | — |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio | 44.4k $903.0k | — |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 43.4k $884.0k | — |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 42.8k $871.0k | — |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 41.2k $837.7k | — |
| YOUSIF CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 40.8k $830.0k | — |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 37.2k $758.0k | — |
| Lido Advisors, LLC 0.02% of their portfolio | 37.1k $755.0k | — |
| COMERICA BANK 0.01% of their portfolio | 37.1k $703.0k | — |
| TEXAS PERMANENT SCHOOL FUND CORP 0.01% of their portfolio | 34.9k $711.0k | — |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.04% of their portfolio | 34.6k $705.0k | — |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 33.7k $686.0k | — |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 33.4k $680.0k | — |
| Composition Wealth, LLC 0.03% of their portfolio | 31.5k $642.0k | — |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 29.2k $595.0k | — |
| Belpointe Asset Management LLC 0.04% of their portfolio | 27.3k $555.0k | — |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 27.3k $555.0k | — |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 27.0k $550.0k | — |
| TimesSquare Capital Management, LLC 0.01% of their portfolio | 25.9k $527.0k | — |
| MetLife Investment Management, LLC 0.00% of their portfolio | 25.6k $520.0k | — |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 24.6k $499.0k | — |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 23.9k $486.0k | — |
| AMALGAMATED BANK 0.00% of their portfolio | 23.8k $484.0k | — |
| Louisiana State Employees Retirement System 0.01% of their portfolio | 23.3k $474.0k | — |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 23.3k $474.0k | — |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 20.9k $426.0k | — |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.01% of their portfolio | 20.7k $421.0k | — |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 20.2k $411.0k | — |
| SteelPeak Wealth, LLC 0.03% of their portfolio | 20.0k $407.0k | — |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 19.6k $398.4k | — |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 19.2k $391.6k | — |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 18.1k $367.0k | — |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 17.0k $347.0k | — |
| OREGON PUBLIC EMPLOYEES RETIREMENT FUND 0.00% of their portfolio | 16.2k $329.0k | — |
| Raymond James Financial Services Advisors, Inc. 0.00% of their portfolio | 16.1k $327.0k | — |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 15.9k $322.9k | — |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 15.8k $320.0k | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 15.4k $314.0k | — |
| Alpha Cubed Investments, LLC 0.02% of their portfolio | 15.1k $306.0k | — |