iRhythm Technologies, Inc.
Total Trades
116
Buys
1
Sells
85
Largest Trade
N/A
Insiders
16
Institutional Funds
273
Inst. Value
$1M+
Activist Filings
22
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Bairey Merz Cathleen Noel | Director | SELL | $50K–$100K | 500 | $111.76 | Jun 16, 2022 |
| Devine Douglas | COO | SELL | $50K–$100K | 1K | $59.56 | Mar 23, 2022 |
| Wilson Daniel G. | EVP | SELL | $100K–$500K | 2K | $59.56 | Mar 23, 2022 |
| Devine Douglas | COO | SELL | $50K–$100K | 576 | $132.67 | Mar 8, 2022 |
| Vort David A | Chief Commercial O… | SELL | $100K–$500K | 3K | $132.67 | Mar 8, 2022 |
| Wilson Daniel G. | EVP | SELL | $100K–$500K | 1K | $132.67 | Mar 8, 2022 |
| King Kevin M | Director | SELL | $500K+ | 7K | $132.67 | Mar 8, 2022 |
| Day Mark J. | EVP | SELL | $100K–$500K | 3K | $132.67 | Mar 8, 2022 |
| Vort David A | Chief Commercial O… | SELL | $100K–$500K | 3K | $120.99 | Feb 18, 2022 |
| Vort David A | Chief Commercial O… | GRANT | N/A | 11K | — | Feb 18, 2022 |
| Devine Douglas | COO | GRANT | N/A | 15K | — | Feb 18, 2022 |
| Devine Douglas | COO | SELL | $500K+ | 5K | $120.99 | Feb 18, 2022 |
| Wilson Daniel G. | EVP | SELL | $100K–$500K | 3K | $120.99 | Feb 18, 2022 |
| Wilson Daniel G. | EVP | GRANT | N/A | 9K | — | Feb 18, 2022 |
| Day Mark J. | EVP | SELL | $100K–$500K | 4K | $120.99 | Feb 18, 2022 |
| Day Mark J. | EVP | GRANT | N/A | 13K | — | Feb 18, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 273 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| SANDS CAPITAL MANAGEMENT, LLC | 1.7M | $1M+ | SH |
| Capital Research Global Investors | 1.2M | $1M+ | SH |
| STATE STREET CORP | 765K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 755K | $1M+ | SH |
| EVENTIDE ASSET MANAGEMENT, LLC | 692K | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 639K | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 639K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 607K | $1M+ | SH |
| BNP Paribas Asset Management Holding S.A. | 583K | $1M+ | SH |
| Stephens Investment Management Group LLC | 519K | $1M+ | SH |
| MACKENZIE FINANCIAL CORP | 347K | $1M+ | SH |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 325K | $1M+ | SH |
| LOOMIS SAYLES & CO L P | 292K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 286K | $1M+ | SH |
| LORD, ABBETT & CO. LLC | 268K | $1M+ | SH |
| Assenagon Asset Management S.A. | 225K | $1M+ | SH |
| Point72 Asset Management, L.P. | 219K | $1M+ | SH |
| BRAIDWELL LP | 217K | $1M+ | SH |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 196K | $1M+ | SH |
| BARCLAYS PLC | 193K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 13, 2026
5.3%
1.7M shares
Artisan Partners Asset Management Inc.
SC 13G/A · Feb 3, 2026
4.7%
1.5M shares
SC 13G/A · Nov 13, 2025
6.9%
2.2M shares
Capital Research Global Investors
SC 13G/A · Aug 13, 2025
4.7%
1.5M shares
Capital Research Global Investors
SC 13G/A · May 13, 2025
7.0%
2.2M shares
Capital Research Global Investors
SC 13G/A · Feb 13, 2025
5.2%
1.6M shares
SC 13G/A · Jan 8, 2025
10.0%
3.1M shares
Capital Research Global Investors 95-1411037
SC 13G/A · Nov 12, 2024
6.3%
2.0M shares
Artisan Partners Limited Partnership
SC 13G/A · Nov 12, 2024
8.9%
2.8M shares
SC 13G/A · Nov 7, 2024
10.0%
3.1M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.8%
3.0M shares
SC 13G/A · Feb 13, 2024
7.3%
2.2M shares
Artisan Partners Limited Partnership
SC 13G · Feb 12, 2024
6.8%
2.1M shares
Capital Research Global Investors 95-1411037
SC 13G · Feb 9, 2024
8.1%
2.5M shares
SC 13G/A · Jan 25, 2024
8.1%
2.5M shares
SC 13G/A · Feb 14, 2023
9.1%
2.7M shares
SC 13G/A · Jan 31, 2023
7.6%
2.3M shares
Mackenzie Financial Corporation
SC 13G/A · Jan 27, 2023
4.1%
1.2M shares
JPMORGAN CHASE & CO. 13-2624428
SC 13G/A · Nov 7, 2022
4.0%
1.2M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
1.7%
525K shares
SC 13G/A · Feb 12, 2022
10.3%
3.0M shares
JPMORGAN CHASE & CO. 13-2624428
SC 13G · Jan 24, 2022
7.0%
2.1M shares