IRTCiRhythm Holdings, Inc.

$106.74-39% 1Y

Who owns IRTC

301 institutions reported holding IRTC for 2026Q2, together 110% of the company, unchanged from the 301 a quarter earlier.

301

Institutions reporting a position · as of 2026Q2 · level with 301 the quarter before

Shares held by institutions
35.6M

Shares held by institutions · 110% of the company · long US equity positions only, as reported on Form 13F

Reported value
$4.24B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
37%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
39
New positions
43
Positions exited
43
Added to
111
Reduced
87
Top 10 holdersof the company
51%
Shares sold shortsettled Sep 15, 2026
3.1M
Short interestof shares outstanding
9.4%
Days to coverat the average daily volume
5.6
Change in the short positionsince the Aug 31, 2026 count
+9.6%
Institutional ownership by quarter, 2016Q4 to 2026Q2
QuarterFilersSharesReported value
2026Q230135.6M$4.24B
2026Q130135.5M$4.19B
2025Q433135.1M$6.23B
2025Q333034.6M$5.94B
2025Q229935.3M$5.42B
2025Q125335.9M$3.76B
2024Q422734.3M$3.02B
2024Q324134.3M$2.55B
2024Q222835.5M$3.82B
2024Q125134.5M$4.00B
2023Q422032.9M$3.53B
2023Q322033.1M$3.12B
2023Q220033.3M$3.47B
2023Q120433.6M$4.16B
2022Q420631.1M$2.91B
2022Q323030.4M$3.80B
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC3.7M11%$436M
BlackRock Inc.3.0M9.2%$355M
RTW INVESTMENTS, LP2.2M6.7%$260M
Artisan Partners Limited Partnership1.7M5.1%$197M
MILLENNIUM MANAGEMENT LLC1.4M4.3%$167M
FMR LLC1.2M3.7%$142M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC0.9M2.9%$112M
GEODE CAPITAL MANAGEMENT LLC0.9M2.7%$105M
EVENTIDE ASSET MANAGEMENT, LLC0.9M2.7%$105M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.0.9M2.7%$103M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20263.1M9.4%5.6
Aug 31, 20262.8M8.6%5.6
Aug 14, 20262.8M8.6%3.3
Jul 31, 20263.2M9.9%6.6
Jul 15, 20263.4M11%5.8
Jun 30, 20263.2M10.0%4.6
Jun 15, 20262.9M9.0%5.8
May 29, 20263.2M9.7%6.1
May 15, 20263.1M9.5%5.1
Apr 30, 20262.9M8.8%6.6
Apr 15, 20263.0M9.3%7.8
Mar 31, 20262.9M9.1%5.2

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

opening the register…