iRhythm Holdings, Inc.
DE ˙ DB ˙ US4500561067
88,00 € ↓ -2,00 (-2,22%)
2026-06-03
AKTIENPREIS
SecurityDE:I25 / iRhythm Holdings, Inc.
InstitutionMan Group plc
Latest Disclosed Ownership88,210 shares
Latest Disclosed Value $ 10,410,544
Man Group plc reports 56.95% increase in ownership of I25 / iRhythm Holdings, Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 88,210 shares of iRhythm Holdings, Inc. (DE:I25) valued at $8,644,580 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 56,202 shares of iRhythm Holdings, Inc.. This represents a change in shares of 56.95% during the quarter. The current value of the position is $7,762,480 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.

Upgrade to unlock premium data and export to Excel .

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 88,210 32,008 56.95 10,411 4.39 0.0189
2026-02-17 2025-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 56,202 -150,220 -72.77 9,972 -71.91 0.0170
2025-11-14 2025-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 206,422 -61,181 -22.86 35,503 -13.83 0.0617
2025-08-14 2025-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 267,603 267,603 41,200 0.0785
2024-08-14 2024-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 0 -9,724 -100.00 0 -100.00
2024-05-15 2024-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 9,724 1,128 -57.73 0.0028
2023-11-14 2023-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 2,666 -80.57 0.0083
2023-08-14 2023-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 131,545 13,723 1.51 0.0423
2023-05-15 2023-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 13,518 0.0481
2023-02-14 2022-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 0 -5,006 -100.00 0 -100.00
2022-11-14 2022-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 5,006 627 -90.34 0.0029
2022-08-15 2022-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 6,488 0.0275
2022-05-16 2022-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 0 -11,120 -100.00 0 -100.00
2022-02-14 2021-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 11,120 -16,000 -59.00 1,309 -17.57 0.0042
2021-11-15 2021-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 27,120 -45,689 -62.75 1,588 -67.13 0.0056
2021-08-16 2021-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 72,809 -17,716 -19.57 4,831 -61.57 0.0170
2021-05-17 2021-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 90,525 50,302 125.06 12,571 31.76 0.0553
2021-02-16 2020-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 40,223 2,026 5.30 9,541 4.90 0.0419
2020-11-16 2020-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 38,197 -18,367 -32.47 9,095 38.75 0.0358
2020-08-14 2020-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 56,564 56,564 6,555 0.0331
2020-05-15 2020-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 0 -99,664 -100.00 0 -100.00
2020-02-18 2019-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 99,664 -15,473 -13.44 6,786 -20.47 0.0223
2019-11-14 2019-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 115,137 -72,730 -38.71 8,533 -42.57 0.0317
2019-08-14 2019-06-30 13F IRHYTHM TECHNOLOGIES COM 450056106 187,867 71,762 61.81 14,857 70.71 0.0537
2019-05-15 2019-03-31 13F IRHYTHM TECHNOLOGIES COM 450056106 116,105 27,667 31.28 8,703 41.63 0.0330
2019-02-14 2018-12-31 13F IRHYTHM TECHNOLOGIES COM 450056106 88,438 57,260 183.66 6,145 108.23 0.0273
2018-11-14 2018-09-30 13F IRHYTHM TECHNOLOGIES COM 450056106 31,178 31,178 2,951 0.0108
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.