iRhythm Holdings, Inc.
DE ˙ DB ˙ US4500561067
89,00 € ↑1,00 (1,14%)
2026-06-04
DEL PRIS
SecurityDE:I25 / iRhythm Holdings, Inc.
InstitutionBessemer Group Inc
Latest Disclosed Ownership2,432 shares
Latest Disclosed Value $ 286
Bessemer Group Inc reports 99.24% decrease in ownership of I25 / iRhythm Holdings, Inc.

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 2,432 shares of iRhythm Holdings, Inc. (DE:I25) valued at $238,336 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 321,984 shares of iRhythm Holdings, Inc.. This represents a change in shares of -99.24% during the quarter. The current value of the position is $216,448 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)
2026-05-06 2026-03-31 13F IRHYTHM HOLDINGS SC 450056106 2,432 -319,552 -99.24 0 -100.00 0.0004
2026-02-05 2025-12-31 13F IRHYTHM TECHNOLOGIES SC 450056106 321,984 -112,251 -25.85 57 -22.97 0.0877
2025-11-05 2025-09-30 13F IRHYTHM TECHNOLOGIES SC 450056106 434,235 -134,961 -23.71 75 -14.94 0.1142
2025-08-01 2025-06-30 13F IRHYTHM TECHNOLOGIES SC 450056106 569,196 -4,857 -0.85 88 45.00 0.1423
2025-04-23 2025-03-31 13F IRHYTHM TECHNOLOGIES SC 450056106 574,053 6,046 1.06 60 17.65 0.1077
2025-02-13 2024-12-31 13F IRHYTHM TECHNOLOGIES SC 450056106 568,007 299,726 111.72 51 168.42 0.0836
2024-11-12 2024-09-30 13F IRHYTHM TECHNOLOGIES SC 450056106 268,281 30 0.01 20 -32.14 0.0328
2024-08-13 2024-06-30 13F IRHYTHM TECHNOLOGIES SC 450056106 268,251 -7,660 -2.78 29 -12.50 0.0509
2024-08-13 2024-03-31 13F/A-1 IRHYTHM TECHNOLOGIES SC 450056106 275,911 -47,776 -14.76 32 -5.88 0.0578
2024-05-13 2024-03-31 13F IRHYTHM TECHNOLOGIES SC 450056106 275,911 -47,776 32 0.0578
2024-02-09 2023-12-31 13F IRHYTHM TECHNOLOGIES SC 450056106 323,687 -74,647 -18.74 35 -8.11 0.0675
2023-11-13 2023-09-30 13F IRHYTHM TECHNOLOGIES SC 450056106 398,334 1,232 0.31 38 -9.76 0.0824
2023-08-10 2023-06-30 13F IRHYTHM TECHNOLOGIES SC 450056106 397,102 7,292 1.87 41 -14.58 0.0879
2023-05-10 2023-03-31 13F IRHYTHM TECHNOLOGIES SC 450056106 389,810 8,442 2.21 48 37.14 0.1148
2023-02-13 2022-12-31 13F IRHYTHM TECHNOLOGIES SC 450056106 381,368 3,481 0.92 36 -99.93 0.0870
2022-11-09 2022-09-30 13F IRHYTHM TECHNOLOGIES SC 450056106 377,887 11,171 3.05 47,343 19.50 0.1236
2022-08-10 2022-06-30 13F IRHYTHM TECHNOLOGIES SC 450056106 366,716 -79,548 -17.83 39,616 -43.63 0.0988
2022-05-12 2022-03-31 13F IRHYTHM TECHNOLOGIES SC 450056106 446,264 20,626 4.85 70,274 40.29 0.1474
2022-01-27 2021-12-31 13F IRHYTHM TECHNOLOGIES SC 450056106 425,638 0 0.00 50,093 100.97 0.1004
2021-11-12 2021-09-30 13F IRHYTHM TECHNOLOGIES SC 450056106 425,638 0 0.00 24,925 -11.74 0.0532
2021-08-06 2021-06-30 13F IRHYTHM TECHNOLOGIES SC 450056106 425,638 38,704 10.00 28,241 -47.44 0.0613
2021-05-13 2021-03-31 13F IRHYTHM TECHNOLOGIES SC 450056106 386,934 0 0.00 53,730 -41.46 0.1287
2021-02-09 2020-12-31 13F IRHYTHM TECHNOLOGIES SC 450056106 386,934 149,356 62.87 91,785 62.25 0.2425
2020-11-12 2020-09-30 13F IRHYTHM TECHNOLOGIES SC 450056106 237,578 237,578 56,570 0.1672
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.