RadNet Ownership | Who Owns RadNet?

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RadNet Ownership Summary

RadNet is owned by 95.47% institutional investors, 12.73% insiders. Blackrock is the largest institutional shareholder, holding 13.86% of RDNT shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.24% of its assets in RadNet shares.

RDNT Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	RadNet	95.47%	12.73%	-8.20%
Sector	Healthcare Stocks	492.67%	11.09%	-403.76%
Industry	Diagnostics & Research Stocks	59.51%	10.81%	29.68%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	9.61M	13.86%	$565.97M
Blackrock funding, inc. /de	9.45M	12.76%	$720.46M
Vanguard group	7.48M	10.10%	$570.35M
Beck mack & oliver	3.26M	4.41%	$185.71M
Rtw investments, lp	2.69M	3.63%	$153.11M
State street	2.42M	3.49%	$142.35M
Allspring global investments	1.74M	2.35%	$135.94M
Geode capital management	1.66M	2.25%	$126.90M
Jb capital partners lp	1.42M	1.92%	$108.53M
Dimensional fund advisors lp	1.38M	1.86%	$104.99M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Jb capital partners lp	1.42M	18.36%	$108.53M
Alpha wave global, lp	533.28K	4.12%	$40.64M
Beck mack & oliver	3.26M	3.54%	$185.71M
Global alpha capital management	702.76K	3.06%	$53.56B
Robotti robert	186.17K	2.46%	$14.19M
Punch & associates investment management	697.27K	2.44%	$39.68M
Rtw investments, lp	2.69M	2.18%	$153.11M
Integral health asset management	400.00K	2.08%	$22.76M
Hanseatic management services	20.89K	1.85%	$1.46M
Van berkom & associates	823.58K	1.82%	$62.77M

Top Buyers

Holder	Shares	% Assets	Change
Van berkom & associates	823.58K	1.82%	817.81K
Norges bank	807.29K	0.01%	807.29K
Fuller & thaler asset management	705.66K	0.18%	705.66K
Millennium management	813.47K	0.02%	661.64K
Westfield capital management co lp	525.82K	0.17%	525.82K

Top Sellers

Holder	Shares	% Assets	Change
8 knots management	-	-	-509.25K
Invesco	1.26M	0.02%	-366.82K
Alyeska investment group	855.90K	0.17%	-358.98K
Elequin securities	-	-	-356.38K
Freestone grove partners lp	-	-	-346.71K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	807.29K	0.01%	807.29K	$56.38M
Fuller & thaler asset management	705.66K	0.18%	705.66K	$53.78M
Westfield capital management co lp	525.82K	0.17%	525.82K	$40.07M
First turn management	157.62K	1.58%	157.62K	$7.84M
First light asset management	68.69K	0.51%	68.69K	$3.91M

Sold Out

Holder	Change
Financial gravity asset management	-1.00
Northwestern mutual wealth management	-1.00
Mendota financial group	-3.00
Claris advisors, llc / mo /	-3.00
Newsquare capital	-3.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	327	2.83%	70,718,696	3.53%	95	1.09%	199	19.88%	84	-21.50%
Mar 31, 2025	13	-96.15%	5,686,218	-91.10%	7	0.10%	7	-95.76%	2	-98.29%
Dec 31, 2024	308	-0.65%	57,803,842	-7.76%	78	1.08%	152	-3.18%	105	7.14%
Sep 30, 2024	306	6.99%	62,640,171	2.39%	85	1.23%	155	5.44%	98	2.08%
Jun 30, 2024	282	0.36%	60,993,161	1.44%	88	0.98%	144	-14.29%	96	29.73%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	4.03M	5.24%	-
Vanguard Total Stock Mkt Idx Inv	2.18M	2.83%	-7.09K
Vanguard US Total Market Shares ETF	2.09M	2.82%	1.67K
Vanguard Small Cap Index	1.68M	2.19%	30.62K
iShares Russell 2000 ETF	1.65M	2.15%	-
UBS: US Equity Small Cap Growth	999.16K	1.35%	-
Vanguard Small Cap Growth Index Inv	947.49K	1.23%	22.00K
American Century Small Cap Growth Inv	893.10K	1.19%	55.00K
American Century U.S. Small Cap Growth	893.10K	1.19%	55.00K
Invesco OFI Small Cap Growth	880.79K	1.17%	55.78K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Sep 16, 2025	STOLPER MARK	EVP, Chief Financial Officer	Sell	$2.59M
Sep 16, 2025	Katz David Jeffrey	EVP and Chief Legal Officer	Sell	$1.04M
Sep 11, 2025	Wesdorp Cornelis	Pres & CEO, Digital Health	Sell	$36.06K
Sep 10, 2025	HAMES NORMAN R	Pres and COO-West Operations	Sell	$727.40K
Sep 09, 2025	Wesdorp Cornelis	Pres & CEO, Digital Health	Sell	$35.99K

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	9
2025 Q2	-	7
2025 Q1	-	8
2024 Q4	-	3
2024 Q3	-	3

RDNT Ownership FAQ

Who Owns RadNet?

RadNet shareholders are primarily institutional investors at 95.47%, followed by 12.73% insiders and -8.20% retail investors. The average institutional ownership in RadNet's industry, Diagnostics & Research Stocks, is 59.51%, which RadNet exceeds.

Who owns the most shares of RadNet?

RadNet’s largest shareholders are Blackrock (9.61M shares, 13.86%), Blackrock funding, inc. /de (9.45M shares, 12.76%), and Vanguard group (7.48M shares, 10.10%). Together, they hold 36.73% of RadNet’s total shares outstanding.

Does Blackrock own RadNet?

Yes, BlackRock owns 13.86% of RadNet, totaling 9.61M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 565.97M$. In the last quarter, BlackRock increased its holdings by 347.34K shares, a 3.75% change.

Who is RadNet’s biggest shareholder by percentage of total assets invested?

Jb capital partners lp is RadNet’s biggest shareholder by percentage of total assets invested, with 18.36% of its assets in 1.42M RadNet shares, valued at 108.53M$.

Who is the top mutual fund holder of RadNet shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of RadNet shares, with 5.24% of its total shares outstanding invested in 4.03M RadNet shares.

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