iRhythm Holdings, Inc.
DE ˙ DB ˙ US4500561067
89,00 € ↑1,00 (1,14%)
2026-06-04
DEL PRIS
SecurityDE:I25 / iRhythm Holdings, Inc.
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership236,786 shares
Latest Disclosed Value $ 27,945,484
Ameriprise Financial Inc reports 91.54% increase in ownership of I25 / iRhythm Holdings, Inc.

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 236,786 shares of iRhythm Holdings, Inc. (DE:I25) valued at $23,205,028 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 123,621 shares of iRhythm Holdings, Inc.. This represents a change in shares of 91.54% during the quarter. The current value of the position is $21,073,954 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)
2026-05-15 2026-03-31 13F IRHYTHM HOLDINGS COM 450056106 236,786 113,165 91.54 27,945 27.40 0.0012
2026-02-17 2025-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 123,621 -13,688 -9.97 21,935 -7.11 0.0050
2025-11-14 2025-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 137,309 2,021 1.49 23,616 13.38 0.0054
2025-08-14 2025-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 135,288 66,611 96.99 20,829 189.72 0.0051
2025-05-14 2025-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 68,677 -2,577 -3.62 7,189 11.91 0.0019
2025-02-14 2024-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 71,254 8,528 13.60 6,425 37.97 0.0016
2024-11-14 2024-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 62,726 2,213 3.66 4,657 -28.51 0.0012
2024-08-14 2024-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 60,513 20,404 50.87 6,514 40.00 0.0018
2024-05-15 2024-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 40,109 -1,666 -3.99 4,653 4.05 0.0013
2024-02-14 2023-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 41,775 -5,722 -12.05 4,472 -0.13 0.0013
2023-11-14 2023-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 47,497 -15,834 -25.00 4,477 -32.23 0.0015
2023-08-14 2023-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 63,331 -11,145 -14.96 6,607 -28.48 0.0021
2023-05-22 2023-03-31 13F/A-1 IRHYTHM TECHNOLOGIES COM 450056106 74,476 4,810 6.90 9,237 41.58 0.0030
2023-05-15 2023-03-31 13F IPG PHOTONICS COM 450056106 74,476 4,810 9,237 0.0006
2023-02-14 2022-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 69,666 -9,924 -12.47 6,524 -34.57 0.0022
2022-11-14 2022-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 79,590 -3,123 -3.78 9,971 11.58 0.0037
2022-08-15 2022-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 82,713 -11,126 -11.86 8,936 -39.53 0.0031
2022-05-16 2022-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 93,839 30,275 47.63 14,777 97.53 0.0044
2022-02-14 2021-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 63,564 -173,806 -73.22 7,481 -46.18 0.0021
2021-11-15 2021-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 237,370 211,718 825.35 13,900 716.69 0.0044
2021-08-16 2021-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 25,652 -39,893 -60.86 1,702 -81.30 0.0005
2021-05-17 2021-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 65,545 -1,144 -1.72 9,102 -42.47 0.0030
2021-02-12 2020-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 66,689 -4,031 -5.70 15,820 -6.06 0.0056
2020-11-16 2020-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 70,720 993 1.42 16,840 108.39 0.0068
2020-08-14 2020-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 69,727 -41,356 -37.23 8,081 -10.57 0.0035
2020-05-15 2020-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 111,083 11,329 11.36 9,036 33.04 0.0047
2020-02-14 2019-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 99,754 -129,987 -56.58 6,792 -60.11 0.0028
2019-11-14 2019-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 229,741 -280,838 -55.00 17,027 -57.83 0.0076
2019-08-14 2019-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 510,579 -80,226 -13.58 40,376 -8.83 0.0181
2019-05-15 2019-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 590,805 -181,627 -23.51 44,287 -17.48 0.0204
2019-02-14 2018-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 772,432 29,383 3.95 53,669 -23.70 0.0268
2018-11-14 2018-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 743,049 -38,435 -4.92 70,337 10.94 0.0246
2018-08-14 2018-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 781,484 24,838 3.28 63,402 33.11 0.0281
2018-05-14 2018-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 756,646 626,737 482.44 47,630 554.17 0.0216
2018-02-12 2017-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 129,909 -67,127 -34.07 7,281 -28.77 0.0033
2017-11-07 2017-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 197,036 92,549 88.57 10,222 130.23 0.0049
2017-08-10 2017-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 104,487 -36,601 -25.94 4,440 -16.29 0.0022
2017-05-05 2017-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 141,088 12,715 9.90 5,304 37.73 0.0027
2017-02-03 2016-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 128,373 128,373 3,851 0.0021
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.