Position in IRTC
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$65,414,473
+$1,417,366 QoQ
Shares Held
554,266
+53.7% QoQ
Ownership
1.69%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
23 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in IRTC Over Time
Shares Held
Position Value (USD)
Derivatives in IRTC
reported options exposure · as of Mar 31, 2026CallValue
$0
CallShares
0
PutValue
$1,192,002
PutShares
10,100
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Medical Devices
Healthcare · as of Mar 31, 2026D. E. Shaw & Co., Inc. holds $2,885,787,974 across 58 Medical Devices names. IRTC ranks #6 (2.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BSX |
Boston Scientific Corp
|
24,312,352 | $1,525,600,087 | |
| 2 | ABT |
Abbott Laboratories
|
5,280,054 | $542,103,143 | |
| 3 | SYK |
Stryker Corp
|
600,768 | $197,406,356 | |
| 4 | MDT |
Medtronic plc
|
894,615 | $77,518,388 | |
| 5 | PEN |
Penumbra Inc
|
201,950 | $66,314,320 | |
| 6 | IRTC |
iRhythm Holdings, Inc.
This page
|
554,266 | $65,414,473 | |
| 7 | INSP |
Inspire Medical Systems, Inc.
|
1,188,537 | $61,304,737 | |
| 8 | STE |
STERIS plc
|
176,157 | $38,953,596 |
All Filings in IRTC
Export CSV
29 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,192,002 | 10,100 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $65,414,473 | 554,266 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $63,997,107 | 360,669 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $57,982,128 | 337,125 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $38,156,830 | 247,836 | Shares | Defined | 2025-08-14 | |
| 2024-12-31 | $928,751 | 10,300 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $274,688 | 3,700 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $954,206 | 12,853 | Shares | Defined | 2024-11-14 | |
| 2024-03-31 | $232,000 | 2,000 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $1,470,728 | 13,740 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $10,263,028 | 108,880 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $301,632 | 3,200 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $646,784 | 6,200 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $10,934,926 | 104,821 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $5,278,964 | 42,562 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $831,001 | 6,700 | Call | Defined | 2023-05-15 | |
| 2022-12-31 | $5,201,588 | 55,531 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $5,254,368 | 41,941 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $5,105,929 | 47,264 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $12,359,032 | 78,485 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $14,513,766 | 123,322 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $2,078,880 | 35,500 | Put | Defined | 2021-11-15 | |
| 2021-09-30 | $10,242,495 | 174,906 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $2,140,451 | 32,260 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $281,608 | 2,028 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $2,637,300 | 11,118 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $31,199,315 | 131,029 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $7,627,415 | 65,816 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $3,982,570 | 48,956 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||