Security key
750491102
- Security type / class
- Equity / COMMON STOCK
- Shares outstanding
- 76,941,426
- Total 13F shares
- 77,070,708
- Share change
- +683,335
- Total reported value
- $4,308,359,009
- Put/Call ratio
- 24%
- Reported price per share
- $55.89
- Number of holders
- 338
- Value change
- -$3,958,421
- Number of buys
- 179
- Number of sells
- 150
Security identity
Holder snapshot
Report period
Q1 2026
Institutions
338
Top holders
10
RDNT full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
RadNet, Inc. SEC filings
RadNet, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 750491102
Recent filing periods:
Ownership snapshot
Top reported holders of RDNT - RadNet, Inc. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
BlackRock, Inc.
13D/G signal
BlackRock, Inc.
Evidence rows
15
Latest as of
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 12%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Rank 1 holder
BlackRock, Inc.
13F
13D/G
- Ownership
- 12%
- Position
- $715M
Rank 2 holder
PRICE T ROWE ASSOCIATES INC /MD/
13D/G
13F
- Ownership
- 5.4%
- Position
- $232.3M
Rank 3 holder
RTW INVESTMENTS, LP
13D/G
13F
- Ownership
- 5.1%
- Position
- $300.7M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
12%
from 13D/G
|
$714,999,811
10,021,020 shares
|
— | 31 Dec 2025 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
13F
T. Rowe Price Associates, Inc. · Company
|
5.4%
|
$232,296,937
4,154,837 shares
|
$0 | 31 Mar 2026 |
| RTW INVESTMENTS, LP |
13D/G
13F
Company
|
5.1%
|
$300,704,475
3,938,500 shares
|
$0 | 31 Dec 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
Vanguard Portfolio Management
|
5.1%
|
$220,886,222
3,952,160 shares
|
$0 | 31 Mar 2026 |
| Alma Gregory Sorensen |
3/4/5
Chief Strategy Officer, Director
|
1.6%
|
$86,646,629
1,201,923 shares
|
-$1,865,294 | 19 Mar 2026 |
| Stephen M. Forthuber |
3/4/5
Pres & COO-Eastern Operations
|
0.72%
|
$38,649,259
551,266 shares
|
-$3,531,849 | 03 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
338
Shares
77,070,708
Rows available
338
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
340
Q1 2026 holders
338
Holder diff
-2
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend