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Equibles

JANE STREET GROUP, LLC

Position in IRTC — iRhythm Holdings, Inc.

CIK 1595888 NEW YORK, NY
Back to IRTC Full portfolio

Position in IRTC

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$13,320,209
-$20,817,649 QoQ
Shares Held
112,864
-41.3% QoQ
Ownership
0.343%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 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, 2026
CallValue
$1,239,210
CallShares
10,500
PutValue
$932,358
PutShares
7,900

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, 2026

JANE STREET GROUP, LLC holds $517,213,370 across 57 Medical Devices names. IRTC ranks #7 (2.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 BSX
Boston Scientific Corp
 4,032,117 $253,015,341
2 DXCM
Dexcom Inc
 741,669 $46,576,812
3 ESTA
Establishment Labs Holdings Inc.
 627,700 $35,640,805
4 EW
Edwards Lifesciences Corp
 390,333 $31,257,865
5 MDT
Medtronic plc
 349,874 $30,316,580
6 ABT
Abbott Laboratories
 160,022 $16,429,457
7 IRTC
iRhythm Holdings, Inc.
This page 		112,864 $13,320,209
8 ATEC
Alphatec Holdings, Inc.
 878,549 $9,558,612

All Filings in IRTC

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $13,320,209 112,864
2026-03-31 $1,239,210 10,500
2026-03-31 $932,358 7,900
2025-12-31 $621,040 3,500
2025-12-31 $354,880 2,000
2025-12-31 $34,137,858 192,391
2025-09-30 $11,076,156 64,400
2025-09-30 $15,898,410 92,438
2025-09-30 $16,579,836 96,400
2025-06-30 $14,841,744 96,400
2025-06-30 $13,574,344 88,168
2025-06-30 $1,539,600 10,000
2025-03-31 $3,883,628 37,100
2025-03-31 $4,789,423 45,753
2025-03-31 $10,153,960 97,000
2024-12-31 $8,656,320 96,000
2024-12-31 $2,654,963 29,444
2024-12-31 $1,965,706 21,800
2024-09-30 $7,443,450 100,262
2024-09-30 $7,513,088 101,200
2024-09-30 $3,674,880 49,500
2024-06-30 $10,443,985 97,027
2024-03-31 $12,400,980 106,905
2023-12-31 $4,195,431 39,195
2023-09-30 $4,082,776 43,314
2023-06-30 $8,312,529 79,683
2023-03-31 $5,794,185 46,716
2022-12-31 $6,748,736 72,048
2022-09-30 $2,270,574 18,124
2022-06-30 $631,219 5,843
2022-03-31 $614,133 3,900
2022-03-31 $8,015,223 50,900
2022-03-31 $2,777,928 17,641
2021-12-31 $3,224,706 27,400
2021-12-31 $494,298 4,200
2021-12-31 $6,460,944 54,898
2021-09-30 $2,052,761 35,054
2021-09-30 $4,532,544 77,400
2021-09-30 $3,203,232 54,700
2021-06-30 $4,745,617 71,524
2021-06-30 $1,479,605 22,300
2021-06-30 $7,179,070 108,200
2021-03-31 $6,776,368 48,800
2021-03-31 $714,295 5,144
2021-03-31 $1,555,232 11,200
2020-12-31 $1,615,400 6,810
2020-12-31 $1,423,260 6,000
2020-12-31 $6,404,670 27,000
2020-09-30 $690,519 2,900
2020-09-30 $1,082,685 4,547

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