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RDNT in the 13F filings

Radnet Inc · CUSIP 750491102

Sector · Health care services and research
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 4 Feb 2026
Managers listing it
20
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 3 listed it in both
Shares listed
7,693,721
combined, among listed positions
Reported value
$549m
combined, at the quarter end

Among the 92 comparable managers: 14 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,033,911.

Managers listing RDNT in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

20 of 20 holders

ActionFiling
T. Rowe Price Associates Inc2,699,082$193munder 0.1%Added+627,93617 Feb 2026 (the filing on sec.gov)
Invesco Ltd1,596,780$114munder 0.1%Added+333,91119 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC588,985$42munder 0.1%Added+132,13027 Oct 2026 (the filing on sec.gov)
Soros Fund Management LLC574,555$41m0.47%Added+396,07413 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP405,821$29munder 0.1%Trimmed-58,36817 Feb 2026 (the filing on sec.gov)
Millennium Management LLC380,961$27munder 0.1%Added+361,76217 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP257,613$18munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)221,946$16munder 0.1%Added+214,43917 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC195,978$14munder 0.1%Added+97,27812 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC194,198$14munder 0.1%Added+161,47317 Feb 2026 (the filing on sec.gov)
Freestone Grove Partners LP181,011$13m0.09%Trimmed-88,33117 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP164,388$12munder 0.1%Added+45,43817 Feb 2026 (the filing on sec.gov)
First Eagle Investment Management LLC93,136$6.6munder 0.1%Added+3,6004 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC30,700$2.2munder 0.1%Trimmed-1,53713 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP30,655$2.2munder 0.1%Trimmed-3,00017 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd27,987$2.0munder 0.1%Held017 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP24,495$1.7munder 0.1%Trimmed-285,73213 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC15,164$1.1munder 0.1%Added+1,87917 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP9,375$669kunder 0.1%Added+6,31517 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC891$64kunder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
3 in Q3 2024 to 4 in Q2 2026

Tracked managers listing it, at least.

0246201520182020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
RDNT by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20141$5.0mn.a.n.a.
Q3 20141$3.4mn.a.n.a.
Q4 20141$639kn.a.n.a.
Q1 20151$134kn.a.n.a.
Q1 20181$342kn.a.n.a.
Q3 20191$404kn.a.n.a.
Q4 20191$406kn.a.n.a.
Q1 20201$505kn.a.n.a.
Q2 20201$904kn.a.n.a.
Q3 20201$803kn.a.n.a.
Q4 20201$876kn.a.n.a.
Q1 20212$8.9mn.a.n.a.
Q2 20214$57mn.a.n.a.
Q3 20214$51mn.a.n.a.
Q4 20214$19mn.a.n.a.
Q1 20223$23mn.a.n.a.
Q2 20223$31mn.a.n.a.
Q3 20223$44mn.a.n.a.
Q4 20222$11mn.a.n.a.
Q1 20233$28mn.a.n.a.
Q2 20233$97mn.a.n.a.
Q3 20234$66mn.a.n.a.
Q4 20233$34m13
Q1 20242$14m20
Q2 20243$14m12
Q3 20243$99m30
Q4 20243$92m21
Q1 20252$20m11
Q2 20253$36m21
Q3 20253$41m30
Q4 20254$253m148
Q1 20266$337m169
Q2 20264$302m816

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

RDNT and UNH →RDNT and ELV →RDNT and CI →Choose a stock to compare with RDNT →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own RDNT, latest filings →Back to the 13F Explorer →