Security key
450056106
iRhythm Holdings, Inc. - Common Stock, $0.001 par value (IRTC)
CUSIP: 450056106
Q1 2020 13F Holders as of 31 Mar 2020
- Security type / class
- Equity / Common Stock, $0.001 par value
- Total 13F shares
- 32,167,984
- Total 13F value
- $2,614,776,733
- Share change
- -605,960
- Put/Call ratio
- 126%
- SEC-reported price per share
- $81.35
- Number of holders
- 163
- Value change
- -$40,915,934
- Number of buys
- 93
- Number of sells
- 68
- Shares outstanding
- 32,086,538
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2020
Institutions
163
Top holders
10
IRTC full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
iRhythm Holdings, Inc. SEC filings
iRhythm Holdings, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 450056106
Recent filing periods:
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
BROWN CAPITAL MANAGEMENT LLC
Disclosed value leader
BROWN CAPITAL MANAGEMENT LLC
Comparable rows
15/15
Latest evidence
31 Dec 2019
13F
Lead comparable stake: 10%
Showing 1-6 of 15 holder rows.
Quick read
BROWN CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 10%.
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 BROWN CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
BROWN CAPITAL MANAGEMENT LLC
10%
VANGUARD GROUP INC
7.6%
BlackRock Finance, Inc.
6.8%
Capital Research Global Investors
6.6%
NORGES BANK
4.8%
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 |
|---|---|---|---|---|---|
| BROWN CAPITAL MANAGEMENT LLC |
13F
Company
|
10%
|
$226,240,000
3,322,664 shares
|
— | 31 Dec 2019 |
| VANGUARD GROUP INC |
13F
Company
|
7.6%
|
$165,594,000
2,431,994 shares
|
— | 31 Dec 2019 |
| BlackRock Finance, Inc. |
13F
Company
|
6.8%
|
$149,163,000
2,190,662 shares
|
— | 31 Dec 2019 |
| Capital Research Global Investors |
13F
Company
|
6.6%
|
$143,394,000
2,105,950 shares
|
— | 31 Dec 2019 |
| NORGES BANK |
13F
Company
|
4.8%
|
$104,119,000
1,529,139 shares
|
— | 31 Dec 2019 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
Company
|
4.5%
|
$98,418,000
1,445,405 shares
|
— | 31 Dec 2019 |
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 Q1 2020
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
163
Shares
32,167,984
Rows available
163
| 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 Q1 2020 vs Q1 2020 Across Filers
Q1 2020 holders
163
Q1 2020 holders
163
Holder diff
0
| Investor | Q1 2020 Shares | Q1 2020 Shares | Share Diff | Share Chg % | Q1 2020 value | Q1 2020 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend