RadNet, Inc.
MX ˙ BMV ˙ US7504911022
SecurityMX:RDNT / RadNet, Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership703,116 shares
Latest Disclosed Value $ 39,297,153
Rockefeller Capital Management L.P. reports 11.21% increase in ownership of RDNT / RadNet, Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 703,116 shares of RadNet, Inc. (MX:RDNT) valued at $39,297,153 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 632,267 shares of RadNet, Inc.. This represents a change in shares of 11.21% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F RADNET COM 750491102 703,116 70,849 11.21 39,297 -12.89 0.0697
2026-03-16 2025-12-31 13F/A-1 RADNET COM 750491102 632,267 -244,799 -27.91 45,112 -32.51 0.0812
2026-02-14 2025-12-31 13F RADNET COM 750491102 632,267 -244,799 45,112 0.0412
2025-11-14 2025-09-30 13F RADNET COM 750491102 877,066 -213,223 -19.56 66,841 7.72 0.1307
2025-08-14 2025-06-30 13F/A-1 RADNET COM 750491102 1,090,289 94,958 9.54 62,048 25.38 0.1361
2025-08-08 2025-06-30 13F RADNET COM 750491102 105,207 -890,124 5,987 0.0075
2025-05-14 2025-03-31 13F RADNET COM 750491102 995,331 370,621 59.33 49,488 13.44 0.1221
2025-02-13 2024-12-31 13F RADNET COM 750491102 624,710 138,264 28.42 43,624 29.26 0.1130
2024-11-14 2024-09-30 13F RADNET COM 750491102 486,446 94,259 24.03 33,749 46.07 0.0908
2024-08-12 2024-06-30 13F RADNET COM 750491102 392,187 74,176 23.32 23,105 49.31 0.0657
2024-05-14 2024-03-31 13F RADNET COM 750491102 318,011 155,366 95.52 15,474 173.63 0.0452
2024-02-14 2023-12-31 13F RADNET COM 750491102 162,645 76,715 89.28 5,655 133.48 0.0189
2023-11-14 2023-09-30 13F RADNET COM 750491102 85,930 25,430 42.03 2,422 22.76 0.0093
2023-08-14 2023-06-30 13F RADNET COM 750491102 60,500 -95,500 -61.22 1,974 65,666.67 0.0076
2023-05-16 2023-03-31 13F RADNET COM 750491102 156,000 -22,517 -12.61 4 -99.91 0.0168
2023-03-06 2022-12-31 13F RADNET COM 750491102 178,517 -3,000 -1.65 3,361 -8.99 0.0169
2022-11-02 2022-09-30 13F RADNET COM 750491102 181,517 -15,023 -7.64 3,693 8.75 0.0191
2022-08-12 2022-06-30 13F RADNET COM 750491102 196,540 -19,660 -9.09 3,396 -29.78 0.0180
2022-05-13 2022-03-31 13F RADNET COM 750491102 216,200 84,700 64.41 4,836 22.15 0.0233
2022-02-14 2021-12-31 13F RADNET COM 750491102 131,500 52,750 66.98 3,959 71.53 0.0185
2021-11-12 2021-09-30 13F RADNET COM 750491102 78,750 10,250 14.96 2,308 0.04 0.0121
2021-08-10 2021-06-30 13F RADNET COM 750491102 68,500 -200 -0.29 2,307 54.42 0.0130
2021-05-11 2021-03-31 13F RADNET COM 750491102 68,700 2,500 3.78 1,494 15.37 0.0101
2021-02-12 2020-12-31 13F RADNET COM 750491102 66,200 12,950 24.32 1,295 58.51 0.0098
2020-11-13 2020-09-30 13F RADNET COM 750491102 53,250 53,250 817 0.0077
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.