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Security record · archived quarter

IRTC

iRhythm Technologies, Inc. · Healthcare · Medical - Devices

123.09 -1.7% mkt cap $4.05B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
8Tracked holders
Δ holders
2.43MShares held
$261.78MReported value
+0New positions
−0Exits
How these are computed → Explain this at the Research Desk →

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 105 -5 23.67M $2.82B +4 −8
Q1 2026 112 +1 25.32M $2.99B +11 −11
Q4 2025 110 -1 25.32M $4.49B +2 −2
Q3 2025 21 +1 12.24M $2.10B +1
Q2 2025 17 +4 9.71M $1.50B +4
Q1 2025 10 +1 2.81M $294.19M +2 −1
Q4 2024 9 -1 2.41M $217.31M +2 −3
Q3 2024 9 +1 1.67M $124.10M +2 −1
Q2 2024 8 2.43M $261.78M
Holder count
Who holds it · Q2 2024
#ManagerSharesΔ sharesValueTheir weightHeld
1 Geode Capital Management (passive) 727.88K $78.36M 0.0% n/c 1 SEC ↗
2 Geode Capital Management (passive) 727.88K $78.36M 0.0% n/c 1 SEC ↗
3 Point72 Asset Management 536.20K $57.72M 0.2% n/c 1 SEC ↗
4 Millennium Management 495.98K $53.39M 0.0% n/c 1 SEC ↗
5 T. Rowe Price 216.76K $23.33M 0.0% n/c 1 SEC ↗
6 T. Rowe Price 216.76K $23.33M 0.0% n/c 1 SEC ↗
7 Wellington Management 201.47K $21.69M 0.0% n/c 1 SEC ↗
8 Citadel Advisors 164.19K $17.67M 0.0% n/c 1 SEC ↗
9 Citadel Advisors 164.19K $17.67M 0.0% n/c 1 SEC ↗
10 Norges Bank (passive) 83.93K $9.03M 0.0% n/c 1 SEC ↗
11 Bridgewater Associates 5.49K $590,513 0.0% n/c 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

No new tracked buyers this quarter.

Exited

No tracked exits this quarter.

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 300 holders, 34.72M shares, $4.07B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Aug 10 Blackford Quentin S.

Officer, Director · 26.86K sh · $3.35M

Aug 10 Murphy Patrick Michael

Officer · 7.09K sh · $884,156

Aug 10 Patterson Chad

Officer · 7.09K sh · $884,170

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Aug 14 SC 13G/A — RTW INVESTMENTS, LP

View original SEC filing ↗

Aug 13 SC 13G — Artisan Partners Limited Partnership

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q2 2024 · Methodology · Get this via the API