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RDNT · RadNet, Inc. · Shareholders & Ownership

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$73.44 +3.39 (+4.84%)
Market Cap
$5.51B
Shares
78.70M
Volume · Oct 27 569.53K Avg daily vol (3M) 671.31K

Every disclosed holder of RDNT in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns RDNT

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 81,338,554 103.36%
Insiders (Forms 3, 4, 5) 3,598,731 4.57%
13D/G-only blocks 4,551,753 5.78%
Remaining 10,791,781 -13.71%
Registered funds (N-PORT, not summed) 38,758,359 49.25%

Shares outstanding: 78,697,257, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of RDNT

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
10,957,808
1.1
iShares Core S&P Small-Cap ETF
Fund S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
3,513,849
1.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,836,559
1.3
iShares Russell 2000 Growth ETF
Fund S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
660,604
1.4
iShares S&P Small-Cap 600 Growth ETF
Fund S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
406,300
1.5
BlackRock Advantage Small Cap Core Fund
Fund S000039982 · Registered fund · Aug 31, 2026
BlackRock Funds, not summed
219,382
2
RTW INVESTMENTS, LP
13F CIK 1493215 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,846,958
2.1
RTW INVESTMENTS, LP
13G CIK 1493215 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
4,846,958
3 4,551,753
4
PRICE T ROWE ASSOCIATES INC /MD/
13F CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,501,195
4.1
T. Rowe Price Mid-Cap Value Fund, Inc.
Fund S000002103 · Registered fund · Jun 30, 2026
T. ROWE PRICE MID-CAP VALUE FUND, INC., not summed
1,756,598
4.2
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
515,044
4.3
T. Rowe Price Small-Mid Cap ETF
Fund S000079837 · Registered fund · Jun 30, 2026
T. Rowe Price Exchange-Traded Funds, Inc., not summed
60,087
4.4
T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.
Fund S000002073 · Registered fund · Jun 30, 2026
T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC., not summed
54,460
4.5
T. Rowe Price Integrated U.S. Small-Mid Cap Core Equity Fund
Fund S000052904 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
49,698
5
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,066,931
6
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,193,565
7
BECK MACK & OLIVER LLC
13F CIK 10742 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,163,592
7.1
BECK, MACK & OLIVER PARTNERS FUND
Fund S000026940 · Registered fund · Jun 30, 2026
FORUM FUNDS, not summed
80,000
8
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,842,457
8.1
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
647,437
8.2
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
260,551
8.3
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF
Fund S000006974 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
134,592
8.4
State Street Institutional Small-Cap Equity Fund
Fund S000001631 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL FUNDS, not summed
41,921
8.5
State Street(R) SPDR(R) S&P(R) Health Care Services ETF
Fund S000012331 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
38,905
9
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,252,511
10
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,858,508
11
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,641,292
11.1
Invesco Discovery Fund
Fund S000064618 · Registered fund · May 31, 2026
AIM Counselor Series Trust (Invesco Counselor Series Trust), not summed
785,552
11.2
Invesco Small Cap Growth Fund
Fund S000000476 · Registered fund · Jun 30, 2026
AIM Growth Series (Invesco Growth Series), not summed
149,795
11.3
Invesco Health Care Fund
Fund S000000235 · Registered fund · Jul 31, 2026
AIM Investment Funds (Invesco Investment Funds), not summed
62,732
11.4
Invesco S&P SmallCap Health Care ETF
Fund S000028299 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
48,790
11.5
Invesco S&P SmallCap 600 Revenue ETF
Fund S000064596 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
37,097
12
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,623,822
13
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,618,424
13.1
Small Cap Growth Fund
Fund S000006193 · Registered fund · Jul 31, 2026
American Century Mutual Funds, Inc., not summed
981,113
13.2
Global Small Cap Fund
Fund S000053103 · Registered fund · May 31, 2026
American Century World Mutual Funds, Inc., not summed
9,236
14
Clearbridge Investments, LLC
13F CIK 1348883 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,546,652
15
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,491,040
15.1
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
335,531
15.2
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
247,996
15.3
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
136,924
15.4
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
118,571
15.5
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
106,443
16
Hood River Capital Management LLC
13F CIK 1578177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,456,205
16.1
Hood River Small-Cap Growth Fund
Fund S000012813 · Registered fund · Jun 30, 2026
Manager Directed Portfolios, not summed
728,645
16.2
Hood River New Opportunities Fund
Fund S000086255 · Registered fund · Jun 30, 2026
Manager Directed Portfolios, not summed
113,913
17
JB CAPITAL PARTNERS LP
13F CIK 1138532 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,424,061
18
BAMCO INC /NY/
13F CIK 1017918 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,260,992
18.1
BARON SMALL CAP FUND
Fund S000000584 · Registered fund · Jun 30, 2026
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND), not summed
1,000,000
18.2
Baron Health Care Fund
Fund S000061847 · Registered fund · Jun 30, 2026
BARON SELECT FUNDS, not summed
60,000
19
Sorensen Gregory
Insider CIK 1731883 · Mar 19, 2026
Director, issuer-wide
1,201,923
20
Van Berkom & Associates Inc.
13F CIK 1524408 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,193,068
21
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,178,372
21.1
Goldman Sachs Small/Mid Cap Growth Fund
Fund S000009322 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
171,244
21.2
Goldman Sachs Small Cap Growth Fund
Fund S000061413 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
75,834
21.3
Multi-Manager U.S. Small Cap Equity Fund
Fund S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
11,934
21.4
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
7,936
21.5
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
201
22
Alyeska Investment Group, L.P.
13F CIK 1453072 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,171,721
23
Defiance ETFs, LLC
13F CIK 1732541 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,143,622
23.1
Defiance Quantum ETF
Fund S000062478 · Registered fund · Jun 30, 2026
ETF Series Solutions, not summed
1,143,622
24
Penserra Capital Management LLC
13F CIK 1593324 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,143,622
25
PRINCIPAL FINANCIAL GROUP INC
13F CIK 1126328 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,052,356
25.1
SmallCap Fund
Fund S000007214 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
311,300
25.2
SmallCap Growth Fund I
Fund S000007175 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
100,069
25.3
SmallCap S&P 600 Index Fund
Fund S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
52,142
25.4
SmallCap Account
Fund S000007675 · Registered fund · Jun 30, 2026
Principal Variable Contract Funds, Inc, not summed
28,500
26
WESTFIELD CAPITAL MANAGEMENT CO LP
13F CIK 1177719 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
975,542
27
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
935,198
28
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
931,114
28.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
63
29
VANGUARD EXPLORER FUND
Fund S000002578 · Registered fund · Jul 31, 2026
VANGUARD EXPLORER FUND, not summed
923,146
30
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
813,056
30.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
36,192
30.2
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
6,481
30.3
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
948
31
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
812,359
32
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
792,282
32.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
335,819
32.2
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
173,772
32.3
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
74,664
32.4
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
44,917
32.5
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
42,834
33
Rockefeller Capital Management L.P.
13F CIK 1739439 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
757,990
33.1
Rockefeller US Small Cap Core Fund
Fund S000080973 · Registered fund · Aug 31, 2026
Trust for Professional Managers, not summed
33,697
34
AMERIPRISE FINANCIAL INC
13F CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
745,603
34.1
Columbia Small Cap Index Fund
Fund S000010827 · Registered fund · May 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
103,978
34.2
Variable Portfolio - Partners Small Cap Growth Fund
Fund S000028697 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
76,011
34.3
Columbia Variable Portfolio - Small Company Growth Fund
Fund S000010658 · Registered fund · Jun 30, 2026
COLUMBIA FUNDS VARIABLE INSURANCE TRUST, not summed
32,586
35
Global Alpha Capital Management Ltd.
13F CIK 1584691 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
734,875
36
LOOMIS SAYLES & CO L P
13F CIK 312348 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
680,979
36.1
Loomis Sayles Small Cap Growth Fund
Fund S000006705 · Registered fund · Jun 30, 2026
LOOMIS SAYLES FUNDS II, not summed
346,509
37
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
635,813
38
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.
13F CIK 1238990 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
633,272
39
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
631,797
39.1
College Retirement Equities Fund - Total Global Stock Account
Fund S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
269,816
39.2
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
93,377
39.3
Nuveen Small Cap Select Fund
Fund S000005569 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
77,616
39.4
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
66,326
39.5
Nuveen Small Cap Growth Opportunities Fund
Fund S000005567 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
60,274
40
Polar Capital Holdings Plc
13F CIK 1837309 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
623,029
41
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
619,635
42
Allspring Global Investments Holdings, LLC
13F CIK 1890906 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
608,144
42.1
Allspring SMID Cap Growth Fund
Fund S000007345 · Registered fund · Jun 30, 2026
ALLSPRING FUNDS TRUST, not summed
154,823
42.2
Allspring Emerging Growth Fund
Fund S000015703 · Registered fund · Jul 31, 2026
ALLSPRING FUNDS TRUST, not summed
73,022
42.3
Allspring VT Small Cap Growth Fund
Fund S000007228 · Registered fund · Jun 30, 2026
Allspring VARIABLE TRUST, not summed
72,112
42.4
Allspring Discovery Small Cap Growth Fund
Fund S000029105 · Registered fund · Jun 30, 2025
ALLSPRING FUNDS TRUST, not summed
34,798
42.5
Allspring VT Discovery SMID Cap Growth Fund
Fund S000007218 · Registered fund · Jun 30, 2026
Allspring VARIABLE TRUST, not summed
30,070
43
VOYA INVESTMENT MANAGEMENT LLC
13F CIK 1068837 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
604,907
44
Berger Howard G
Insider CIK 1276915 · Jun 16, 2026
Director, President, CEO, issuer-wide
518,315
45
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
507,472
46
Forthuber Stephen M
Insider CIK 1325578 · Jun 15, 2026
Pres & COO-Eastern Operations, issuer-wide
507,199
47
ROYAL BANK OF CANADA
13F CIK 1000275 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
501,405
48
DEUTSCHE BANK AG\
13F CIK 948046 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
495,962
48.1
DWS Small Cap Core Fund
Fund S000005709 · Registered fund · Jun 30, 2026
DEUTSCHE DWS INVESTMENT TRUST, not summed
250,000
48.2
DWS Small Cap Growth Fund
Fund S000031150 · Registered fund · Jun 30, 2026
DEUTSCHE DWS INVESTMENT TRUST, not summed
118,576
48.3
DWS Health and Wellness Fund
Fund S000006103 · Registered fund · Aug 31, 2026
DEUTSCHE DWS SECURITIES TRUST, not summed
24,997
48.4
DWS Small Mid Cap Growth VIP
Fund S000006260 · Registered fund · Jun 30, 2026
DEUTSCHE DWS VARIABLE SERIES II, not summed
21,477
48.5
DWS Small Cap Index VIP
Fund S000006223 · Registered fund · Jun 30, 2026
DEUTSCHE DWS INVESTMENTS VIT FUNDS, not summed
11,102
49
Point72 Asset Management, L.P.
13F CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
492,437
50
Harbor Small Cap Growth Fund
Fund S000000686 · Registered fund · Jul 31, 2026
HARBOR FUNDS, not summed
482,763

51 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 512 holders

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Key facts CIK 790526 CUSIP 750491102 13F (30d) 61 filings 61 filers Visit website Investor relations