iRhythm Holdings, Inc. - Common Stock, $0.001 par value (IRTC)

CUSIP: 450056106

Q2 2026 13F Holders as of 30 Jun 2026

Security type / class
Equity / Common Stock, $0.001 par value
Total 13F shares
38,710
Total 13F value
$4,604,727
Holder snapshot 6 signals
Share change
-271,652
SEC-reported price per share
$118.95
Number of holders
10
Value change
-$32,293,015
Number of buys
3
Number of sells
7
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
32,086,538

Security key

450056106

Report period

Q2 2026

Institutions

10

Top holders

10

IRTC full security history Ownership snapshot Full 13F holder table Previous quarter: Q1 2026 iRhythm Holdings, Inc. SEC filings iRhythm Holdings, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of IRTC - iRhythm Holdings, Inc. - Common Stock, $0.001 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
VANGUARD PORTFOLIO MANAGE...
Disclosed value leader
Artisan Partners Limited ...
Comparable rows
15/15
Latest evidence
29 May 2026
13D/G 13F 3/4/5 Lead comparable stake: 5.6% 13D/G row: VANGUARD PORTFOLIO MANAGEMENT LLC Showing 1-6 of 15 holder rows.

Quick read

VANGUARD PORTFOLIO MANAGEMENT LLC leads the comparable SEC ownership view at 5.6%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VANGUARD PORTFOLIO MANAGEMENT LLC's linked filing trail.
Comparable ownership Top 5
VANGUARD PORTFOLIO MANAGEMENT LLC 5.6%
VANGUARD CAPITAL MANAGEMENT LLC 5.2%
RTW INVESTMENTS, LP 5.2%
MILLENNIUM MANAGEMENT LLC 5.1%
Artisan Partners Limited Partnership 4.7%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G 13F
Vanguard Portfolio Management · Company
13D/G 13F
5.6%
$215,279,102
1,824,090 shares
 $0 31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
13D/G 13F
5.2%
$199,628,993
1,691,483 shares
 $0 31 Mar 2026
RTW INVESTMENTS, LP
13D/G 13F
Company
13D/G 13F
5.2%
$197,149,960
1,668,500 shares
 $0 31 Mar 2026
MILLENNIUM MANAGEMENT LLC
13D/G 13F
Company
13D/G 13F
5.1%
$251,228,085
1,664,203 shares
 $0 16 Mar 2026
Artisan Partners Limited Partnership
13D/G 13F
Artisan Partners Asset Management Inc. · Company
13D/G 13F
4.7%
$268,287,860
1,511,992 shares
 $0 31 Dec 2025
Capital Research Global Investors
13D/G 13F
Company
13D/G 13F
4.7%
$204,843,092
1,506,864 shares
 -$94,581,343 30 Jun 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
10
Shares
38,710
Rows available
10
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2026 vs Q1 2026 Across Filers

Q1 2026 holders
301
Q2 2026 holders
10
Holder diff
-291
Investor Q1 2026 Shares Q2 2026 Shares Share Diff Share Chg % Q1 2026 value Q2 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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