Artisan Partners Limited Partnership
Position in IRTC — iRhythm Holdings, Inc.
CIK 1466153
Milwaukee, WI
Position in IRTC
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$171,236,044
-$97,051,816 QoQ
Shares Held
1,450,907
-4.0% QoQ
Ownership
4.42%
of shares outstanding
% of Portfolio
0.28%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
23 quarters on record
Voting authority
Sole 88.3785797435673.ToString("F0")%
Shared 0.ToString("F0")%
None 11.6214202564327.ToString("F0")%
Common Shares in IRTC Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026Artisan Partners Limited Partnership holds $1,193,028,474 across 13 Medical Devices names. IRTC ranks #2 (14.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | EW |
Edwards Lifesciences Corp
|
5,201,144 | $416,507,611 | |
| 2 | IRTC |
iRhythm Holdings, Inc.
This page
|
1,450,907 | $171,236,044 | |
| 3 | PODD |
Insulet Corp
|
692,974 | $145,413,664 | |
| 4 | LIVN |
LivaNova PLC
|
2,122,816 | $134,926,184 | |
| 5 | MDT |
Medtronic plc
|
1,328,676 | $115,129,775 | |
| 6 | GKOS |
GLAUKOS Corp
|
607,462 | $65,399,358 | |
| 7 | BRKR |
Bruker Corp
|
1,427,781 | $51,571,449 | |
| 8 | INSP |
Inspire Medical Systems, Inc.
|
780,575 | $40,262,058 |
All Filings in IRTC
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $171,236,044 | 1,450,907 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $268,287,860 | 1,511,992 | Shares | Sole | 2026-02-03 | |
| 2025-12-31 | $268,287,860 | 1,511,992 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $441,586,560 | 2,567,513 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $421,979,880 | 2,740,841 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $294,598,830 | 2,814,280 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $249,115,724 | 2,762,734 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $206,406,428 | 2,780,259 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $289,044,077 | 2,685,285 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $248,813,272 | 2,144,942 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $221,733,360 | 2,071,500 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $184,997,032 | 1,962,625 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $167,195,437 | 1,602,717 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $170,332,755 | 1,373,319 | Shares | Sole | 2023-05-11 | |
| 2022-12-31 | $130,739,527 | 1,395,746 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $52,905,242 | 422,296 | Shares | Sole | 2022-11-10 | |
| 2022-06-30 | $31,163,414 | 288,470 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $51,734,091 | 328,533 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $17,759,774 | 150,903 | Shares | Sole | 2022-02-11 | |
| 2021-03-31 | $107,797,156 | 776,301 | Shares | Sole | 2021-05-11 | |
| 2020-12-31 | $321,861,709 | 1,356,864 | Shares | Sole | 2021-02-10 | |
| 2020-09-30 | $96,518,602 | 405,353 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $17,786,681 | 153,479 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $10,819,143 | 132,995 | Shares | Sole | 2020-05-12 | |
| No filing history on record for this holder in this stock. | ||||||