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MILLENNIUM MANAGEMENT LLC

Position in IRTC — iRhythm Holdings, Inc.

CIK 1273087 NEW YORK, NY

Position in IRTC

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$189,777,812
+$43,145,655 QoQ
Shares Held
1,608,014
+94.6% QoQ
Ownership
4.89%
of shares outstanding
% of Portfolio
0.17%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
24 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
$7,376,250
CallShares
62,500
PutValue
$0
PutShares
0

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

MILLENNIUM MANAGEMENT LLC holds $2,438,858,395 across 79 Medical Devices names. IRTC ranks #3 (7.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 IRTC
iRhythm Holdings, Inc.
This page
1,608,014 $189,777,812

All Filings in IRTC

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41 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $189,777,812 1,608,014
2026-03-31 $7,376,250 62,500
2026-03-16 $189,336,375 1,664,203
2025-12-31 $146,632,157 826,376
2025-09-30 $47,788,625 277,857
2025-06-30 $51,777,825 336,307
2025-03-31 $41,845,411 399,746
2024-12-31 $5,429,766 60,217
2024-09-30 $19,636,480 264,500
2024-09-30 $28,033,024 377,600
2024-06-30 $7,534,800 70,000
2024-06-30 $53,386,749 495,975
2024-03-31 $14,453,948 124,603
2024-03-31 $11,600,000 100,000
2023-12-31 $5,834,322 54,506
2023-12-31 $1,605,600 15,000
2023-09-30 $6,159,136 65,342
2023-09-30 $12,743,952 135,200
2023-09-30 $1,432,752 15,200
2023-06-30 $2,399,360 23,000
2023-06-30 $14,823,037 142,092
2023-06-30 $6,259,200 60,000
2023-03-31 $6,809,247 54,900
2023-03-31 $15,007,630 121,000
2023-03-31 $2,303,733 18,574
2022-12-31 $1,266,137 13,517
2022-09-30 $6,610,524 52,766
2022-06-30 $3,781,050 35,000
2022-06-30 $18,683,464 172,947
2022-06-30 $810,225 7,500
2021-12-31 $8,362,462 71,055
2021-09-30 $18,283,544 312,219
2021-06-30 $36,570,328 551,173
2021-06-30 $2,322,250 35,000
2021-03-31 $5,554,400 40,000
2021-03-31 $443,518 3,194
2020-12-31 $2,372,100 10,000
2020-09-30 $4,047,870 17,000
2020-09-30 $13,685,372 57,475
2020-06-30 $2,992,975 25,826
2020-03-31 $11,662,986 143,368