iRhythm Holdings, Inc.
DE ˙ DB ˙ US4500561067
89,00 € ↑1,00 (1,14%)
2026-06-04
DEL PRIS
SecurityDE:I25 / iRhythm Holdings, Inc.
InstitutionProShare Advisors LLC
Latest Disclosed Ownership4,737 shares
Latest Disclosed Value $ 559,061
ProShare Advisors LLC reports 20.31% decrease in ownership of I25 / iRhythm Holdings, Inc.

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 4,737 shares of iRhythm Holdings, Inc. (DE:I25) valued at $464,226 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 5,944 shares of iRhythm Holdings, Inc.. This represents a change in shares of -20.31% during the quarter. The current value of the position is $421,593 USD.

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)
2026-04-24 2026-03-31 13F IRHYTHM HOLDINGS COM 450056106 4,737 -1,207 -20.31 559 -46.96 0.0008
2026-02-06 2025-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 5,944 490 8.98 1,055 12.37 0.0019
2025-11-06 2025-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 5,454 -1,086 -16.61 938 -6.76 0.0020
2025-08-07 2025-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 6,540 -413 -5.94 1,007 38.38 0.0020
2025-05-08 2025-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 6,953 -2,035 -22.64 728 -10.25 0.0016
2025-02-14 2024-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 8,988 3,079 52.11 810 84.93 0.0019
2024-11-14 2024-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 5,909 1,798 43.74 439 -0.90 0.0011
2024-08-13 2024-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 4,111 -1,403 -25.44 443 -30.83 0.0012
2024-05-08 2024-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 5,514 433 8.52 640 17.68 0.0017
2024-02-14 2023-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 5,081 1,095 27.47 544 44.80 0.0017
2023-11-13 2023-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,986 -6 -0.15 376 -9.86 0.0012
2023-08-10 2023-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,992 441 12.42 416 -5.45 0.0012
2023-05-26 2023-03-31 13F/A-1 IRHYTHM TECHNOLOGIES COM 450056106 3,551 -333 -8.57 440 21.21 0.0013
2023-05-12 2023-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 3,551 -333 440 0.0014
2023-02-02 2022-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 3,884 594 18.05 364 -11.89 0.0013
2022-11-07 2022-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,290 -64 -1.91 412 13.81 0.0016
2022-08-01 2022-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,354 -2,179 -39.38 362 -58.49 0.0012
2022-05-10 2022-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 5,533 -915 -14.19 872 15.04 0.0019
2022-02-08 2021-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 6,448 2,667 70.54 758 242.99 0.0015
2021-11-12 2021-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,781 -3,874 -50.61 221 -56.50 0.0006
2021-08-13 2021-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 7,655 -67 -0.87 508 -52.61 0.0015
2021-05-14 2021-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 7,722 1,321 20.64 1,072 -29.38 0.0034
2021-02-09 2020-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 6,401 3,040 90.45 1,518 89.75 0.0056
2020-11-13 2020-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,361 -317 -8.62 800 87.79 0.0037
2020-08-03 2020-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,678 3,678 426 0.0023
2020-05-15 2020-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 0 -3,590 -100.00 0 -100.00
2020-02-12 2019-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 3,590 771 27.35 244 16.75 0.0011
2019-11-12 2019-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 2,819 265 10.38 209 3.47 0.0012
2019-08-13 2019-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 2,554 2,554 202 0.0012
2019-02-14 2018-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 0 -2,950 -100.00 0 -100.00
2018-11-14 2018-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 2,950 -181 -5.78 279 9.84 0.0019
2018-08-13 2018-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 3,131 3,131 254 0.0017
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.