iRhythm Technologies, Inc. (IRTC) has 20 known insider and institutional holders on record. The largest holder is SYNERGY LIFE SCIENCE PARTNERS L P with 2,112,712 shares. Other notable holders include de Clercq Casper L. and Norwest Venture Partners XI, LP.
Over the last 12 months, insiders have made 86 transactions in IRTC stock — 38 buys (valued at $127.51K) and 39 sells (valued at $20.25M). Insider selling has exceeded buying during this period.
IRTC Insider Ownership
Top Holder
SYNERGY LIFE SCIENCE PARTNERS L P
2,112,712 shares
Buys (12 mo)
38
$127.51K value
Sells (12 mo)
39
$20.25M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Synergy Life Science Partners L P |
10 Percent Owner |
2,112,712 |
2017-06-09 |
|
| 2 |
De Clercq Casper L. |
10 Percent Owner |
284,747 |
2017-05-10 |
|
| 3 |
Norwest Venture Partners Xi, Lp |
10 Percent Owner |
284,747 |
2017-05-10 |
|
| 4 |
King Kevin M |
Director |
250,422 |
2022-03-08 |
|
| 5 |
Blackford Quentin S. |
President and CEO |
204,155 |
2026-03-03 |
|
| 6 |
Lathi Vijay K |
Director |
84,380 |
2018-03-12 |
|
| 7 |
Murphy Patrick Michael |
Cbo and CLO |
63,203 |
2026-03-03 |
|
| 8 |
Day Mark J. |
Chief Technology Officer |
61,164 |
2024-03-05 |
|
| 9 |
Patterson Chad |
Chief Comm & Product Officer |
58,164 |
2026-03-03 |
|
| 10 |
Turakhia Minang |
Chief Med/sci Ofcr EVP Advtech |
54,906 |
2026-03-03 |
|
| 11 |
Karti Karim |
Former Chief Operating Officer |
49,182 |
2020-04-27 |
|
| 12 |
Shrishrimal Sumi |
EVP, Chief Risk Officer |
41,870 |
2026-03-03 |
|
| 13 |
Wilson Daniel G. |
Chief Financial Officer |
35,660 |
2026-03-03 |
|
| 14 |
Coyle Michael J |
President and CEO |
33,247 |
2021-02-26 |
|
| 15 |
Devine Douglas |
Chief Operating Officer |
29,566 |
2023-03-07 |
|
| 16 |
Vort David A |
Chief Commercial Officer |
27,952 |
2022-03-08 |
|
| 17 |
Sung Derrick |
EVP, Strat Corp Development |
26,983 |
2019-03-18 |
|
| 18 |
Bobzien Brice |
Chief Financial Officer |
24,428 |
2024-08-12 |
|
| 19 |
Garrett Matthew C. |
Chief Financial Officer |
24,254 |
2020-03-03 |
|
| 20 |
Smith Mervin |
EVP Strategic Business Ops |
23,027 |
2026-03-17 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-31 |
Rodda Julianne |
EVP, Chief People Officer |
Unknown |
- |
- |
- |
| 2026-03-12 |
Patten Jason H |
Director |
RSU Award |
2,218 |
- |
- |
| 2026-03-12 |
Patten Jason H |
Director |
Unknown |
- |
- |
- |
| 2026-03-16 |
Smith Mervin |
EVP Strategic Business Ops |
Informative Sell |
2,585 |
$114.30 |
$295.47K |
| 2026-03-02 |
Smith Mervin |
EVP Strategic Business Ops |
Informative Sell |
600 |
$128.45 |
$77.07K |
| 2026-03-02 |
Turakhia Minang |
Chief Med/sci Ofcr EVP Advtech |
Informative Sell |
1,230 |
$128.45 |
$158K |
| 2026-03-02 |
Rosenbaum Marc Wade |
Chief Accounting Officer |
Informative Sell |
417 |
$128.45 |
$53.56K |
| 2026-03-02 |
Wilson Daniel G. |
Chief Financial Officer |
Informative Sell |
1,261 |
$128.45 |
$161.98K |
| 2026-03-02 |
Shrishrimal Sumi |
EVP, Chief Risk Officer |
Informative Sell |
978 |
$128.44 |
$125.62K |
| 2026-03-02 |
Patterson Chad |
Chief Comm & Product Officer |
Informative Sell |
3,030 |
$128.45 |
$389.19K |
| 2026-03-02 |
Murphy Patrick Michael |
Cbo and CLO |
Informative Sell |
1,139 |
$128.45 |
$146.3K |
| 2026-03-02 |
Blackford Quentin S. |
President and CEO |
Informative Sell |
5,423 |
$128.44 |
$696.55K |
| 2026-02-25 |
Freeman Sean Clinton |
EVP, Strategy & Corp Devt |
RSU Award |
7,525 |
- |
- |
| 2026-02-25 |
Smith Mervin |
EVP Strategic Business Ops |
RSU Award |
6,689 |
- |
- |
| 2026-02-25 |
Turakhia Minang |
Chief Med/sci Ofcr EVP Advtech |
RSU Award |
10,034 |
- |
- |
| 2026-02-25 |
Rosenbaum Marc Wade |
Chief Accounting Officer |
RSU Award |
2,508 |
- |
- |
| 2026-02-25 |
Wilson Daniel G. |
Chief Financial Officer |
RSU Award |
8,361 |
- |
- |
| 2026-02-25 |
Shrishrimal Sumi |
EVP, Chief Risk Officer |
RSU Award |
5,518 |
- |
- |
| 2026-02-25 |
Patterson Chad |
Chief Comm & Product Officer |
RSU Award |
10,870 |
- |
- |
| 2026-02-25 |
Murphy Patrick Michael |
Cbo and CLO |
RSU Award |
7,024 |
- |
- |
| 2026-02-25 |
Blackford Quentin S. |
President and CEO |
RSU Award |
31,842 |
- |
- |
| 2026-02-25 |
Lawrence Brian Lee |
Chief Technology Officer |
RSU Award |
6,689 |
- |
- |
| 2026-02-25 |
Smith Mervin |
EVP Strategic Business Ops |
Informative Sell |
4,041 |
$135.42 |
$547.23K |
| 2026-02-24 |
Smith Mervin |
EVP Strategic Business Ops |
RSU Award |
9,210 |
- |
- |
| 2026-02-25 |
Turakhia Minang |
Chief Med/sci Ofcr EVP Advtech |
Informative Sell |
7,804 |
$135.42 |
$1.06M |
