IRTC

Irhythm Holdings Inc$115.35 1.85%
Health CareUSCUSIP 450056106· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
226
-13 QoQ
13F Value (tracked)
$3.9B
Insider Net · 180d
-$16.5M
1↑ 11↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)42 adding · 21 trimming
Insider net (180d)-$16.5M

Price & smart-money activity

$115.35 1.85%5Y +121.8%
$32.86$74.85$116.84$158.84$200.83202120222023202420252026273530421342343746663942437431143333445545342494012584465549514324056165145977491678711069773777751032
Hover for who · click for detailEnd-of-day closing prices52w $101.79 – $189.25
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Ask your agent what changed in IRTC

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/IRTC/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for IRTC.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

226 tracked 13F filers
1 source-reported value row is withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$323.6M
2.7M
−2.6%
Reduced · −72K sh
Q1 2026
2VANGUARD PORTFOLIO MANAGEMENT LLC
$212.0M
1.8M
New
+1.8M sh
Q1 2026
3RTW INVESTMENTS, LP
$196.9M
1.7M
+41%
Added · +487K sh
Q1 2026
4MILLENNIUM MANAGEMENT LLC
$189.8M
1.6M
+95%
Added · +782K sh
Q1 2026
5Artisan Partners Limited Partnership
$171.2M
1.5M
−4.0%
Reduced · −61K sh
Q1 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$170.6M
1.4M
New
+1.4M sh
Q1 2026
7FMR LLC
$160.7M
1.4M
+117%
Added · +733K sh
Q1 2026
8Holocene Advisors, LP
$147.4M
1.2M
+83%
Added · +565K sh
Q1 2026
9UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$123.6M
1.0M
+26%
Added · +218K sh
Q1 2026
10GEODE CAPITAL MANAGEMENT, LLC
$96.5M
817K
−4.8%
Reduced · −41K sh
Q1 2026
11STATE STREET CORP
$93.0M
788K
+3.1%
Added · +23K sh
Q1 2026
12BNP Paribas Asset Management Holding S.A.
$89.9M
762K
+31%
Added · +179K sh
Q1 2026
13EVENTIDE ASSET MANAGEMENT, LLC
$89.8M
761K
+9.9%
Added · +68K sh
Q1 2026
14JPMORGAN CHASE & CO
$81.6M
715K
−5.8%
Reduced · −44K sh
Q1 2026
15FULLER & THALER ASSET MANAGEMENT, INC.
$79.6M
675K
+5.5%
Added · +35K sh
Q1 2026
16BLAIR WILLIAM & CO/IL
$74.2M
628K
−13%
Reduced · −90K sh
Q1 2026
17BRAIDWELL LP
$72.0M
610K
+181%
Added · +393K sh
Q1 2026
18Point72 Asset Management, L.P.
$70.7M
599K
+173%
Added · +380K sh
Q1 2026
19ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$68.8M
583K
−4.0%
Reduced · −24K sh
Q1 2026
20Stephens Investment Management Group LLC
$66.3M
562K
+8.1%
Added · +42K sh
Q1 2026
21D. E. Shaw & Co., Inc.
$65.4M
554K
+54%
Added · +194K sh
Q1 2026
22Allspring Global Investments Holdings, LLC
$55.2M
467K
+15%
Added · +60K sh
Q1 2026
23BANK OF AMERICA CORP /DE/
$51.0M
433K
+22%
Added · +78K sh
Q1 2026
24Polar Capital Holdings Plc
$49.8M
422K
+37%
Added · +114K sh
Q1 2026
25MANUFACTURERS LIFE INSURANCE COMPANY, THE
$46.1M
391K
+99%
Added · +195K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
5
funds
Added
37
funds
Reduced
21
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$57K
1 insiders
Sells · 180d
$16.5M
11 insiders
Net
-$16.5M
48 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 2, 2026Freeman Sean ClintonEVP, Strategy & Corp DevtSell (S)918$114K
Jul 2, 2026Turakhia MinangCHIEF MED/SCI OFCR EVP ADVTECHSell (S)1K$177K
Jun 2, 2026Shrishrimal SumiEVP, Chief Risk OfficerSell (S)2K$186K
Jun 2, 2026Rosenbaum Marc WadeChief Accounting OfficerSell (S)729$79K
May 29, 2026Shrishrimal SumiEVP, Chief Risk OfficerGrant (A)133$13K
May 29, 2026Rosenbaum Marc WadeChief Accounting OfficerGrant (A)178$17K
May 29, 2026Blackford Quentin S.President and CEO, DirectorGrant (A)178$17K
May 29, 2026Freeman Sean ClintonEVP, Strategy & Corp DevtGrant (A)273$26K
May 29, 2026Patterson ChadCHIEF COMM & PRODUCT OFFICERGrant (A)177$17K
May 29, 2026Turakhia MinangCHIEF MED/SCI OFCR EVP ADVTECHGrant (A)137$13K
May 27, 2026Bairey Merz Cathleen NoelDirectorGrant (A)2K$0
May 27, 2026Bodaken Bruce G.DirectorGrant (A)2K$0

Institutional ownership over time

225 funds+54 since Q3 2024
0121241Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $3.9B · 1 values withheld

Funds that own IRTC also own

CompanyCo-held byCombined value
ELI LILLY & COLLY100 funds$11.1B
BOSTON SCIENTIFIC CORPBSX100 funds$2.9B
MICROSOFT CORPMSFT99 funds$40.6B
INTUITIVE SURGICAL INCISRG99 funds$4.6B
NVIDIA CORPNVDA98 funds$62.8B
ALPHABET INC-CL AGOOGL98 funds$28.6B
META PLATFORMS INC-CLASS AMETA98 funds$19.2B
AMAZON.COM INCAMZN97 funds$35.9B
VISA INC-CLASS A SHARESV95 funds$9.9B
APPLE INCAAPL93 funds$46.5B
BROADCOM INCAVGO93 funds$21.9B
THERMO FISHER SCIENTIFIC INCTMO93 funds$3.7B

Ranked by how many of IRTC's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for IRTC. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.