iRhythm Holdings, Inc.
DE ˙ DB ˙ US4500561067
89,00 € ↑1,00 (1,14%)
2026-06-04
DEL PRIS
SecurityDE:I25 / iRhythm Holdings, Inc.
InstitutionComerica Bank
Latest Disclosed Ownership15,021 shares
Latest Disclosed Value $ 2,665,277
Comerica Bank reports 47.11% decrease in ownership of I25 / iRhythm Holdings, Inc.

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 15,021 shares of iRhythm Holdings, Inc. (DE:I25) valued at $2,253,150 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 28,402 shares of iRhythm Holdings, Inc.. This represents a change in shares of -47.11% during the quarter. The current value of the position is $1,336,869 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)
2026-01-29 2025-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 15,021 -13,381 -47.11 2,665 -45.43 0.0106
2025-11-14 2025-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 28,402 864 3.14 4,885 15.22 0.0184
2025-08-14 2025-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 27,538 -34,690 -55.75 4,240 -34.92 0.0165
2025-05-14 2025-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 62,228 -11,982 -16.15 6,514 -2.65 0.0274
2025-02-14 2024-12-31 13F/A-1 IRHYTHM TECHNOLOGIES COM 450056106 74,210 35,687 92.64 6,692 134.03 0.0270
2025-02-14 2024-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 74,210 35,687 6,692 0.0224
2024-11-14 2024-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 38,523 -6,615 -14.66 2,860 -41.15 0.0113
2024-08-15 2024-06-30 13F IRHYTHM TECHNOLOGIES COMMON 450056106 45,138 6,175 15.85 4,859 7.50 0.0202
2024-05-16 2024-03-31 13F IRHYTHM TECHNOLOGIES COMMON 450056106 38,963 38,204 5,033.47 4,520 5,479.01 0.0195
2024-02-14 2023-12-31 13F IRHYTHM TECHNOLOGIES COMMON 450056106 759 231 43.75 81 65.31 0.0004
2023-11-21 2023-09-30 13F IRHYTHM TECHNOLOGIES COMMON 450056106 528 -13,506 -96.24 50 0.0003
2023-08-22 2023-06-30 13F IRHYTHM TECHNOLOGIES EQU 450056106 14,034 14,034 0 0.0080
2021-04-28 2021-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 0 -976 -100.00 0 -100.00
2021-01-28 2020-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 976 -32 -3.17 247 11.26 0.0016
2020-10-30 2020-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 1,008 1,008 222 0.0016
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.