IRTCiRhythm Holdings, Inc. · Insider ownership research

iRhythm Holdings, Inc. insiders sold $29.6M in the past 12 months. How much of their stake is that?

15% was sold under disclosed trading plans, 85% to cover taxes. The largest seller, Quentin Blackford (President and CEO, Director), sold $11.2M.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why

Updated Oct 16, 2026 from SEC filings · covers Oct 17, 2025 to Oct 16, 2026

1

buyer among officers and directors (1 trade), past 12 months

15%

of sales were under disclosed trading plans, past 12 months

12 of 21

officers and directors sold shares, past 12 months

Is this normal? More than usual: about 2.5x the 5-year average. 12 insiders sold; the average is 8 a year. Year by year

Latest filing: Filed Sep 3 for a sale on Sep 2. Daniel Wilson sold 773 shares ($94K) to cover taxes on vesting stock. Filing

SEC ownership filings: 67 filed in the 12 months to Oct 16, 2026; 491 on record since Oct 19, 2016 · See the evidence

What stands out

Abhijit Talwalkar bought 5.3K shares for $57K, first on May 11, 2026.Purchase, May 11, 2026

A share of stake is shown for 0 of the 12 officers and directors who sold. 21 are left out

i

Left out: Quentin Blackford, Patrick Murphy, Chad Patterson, Minang Turakhia, Daniel Wilson, Sumi Shrishrimal, Julianne Rodda, Abhijit Talwalkar, Mervin Smith, Brian Lawrence, Mark Rubash, Ralph Snyderman, Bruce Bodaken, Marc Rosenbaum, Karen Ling, Merz Bairey, Sean Freeman, Brian Yoor, Kevin Oboyle, Karen McGinnis and Jason Patten (share of stake is being verified).

Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.

Quentin Blackford

President and CEO, Director

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$11.2MTo cover taxes

Chad Patterson

Chief Comm & Product Officer

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$3.1M2% planned, 98% to cover taxes

Patrick Murphy

CBO and CLO

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$3.0MTo cover taxes

Daniel Wilson

Chief Financial Officer

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$2.9M57% planned, 43% to cover taxes

Minang Turakhia

Chief Med/Sci Ofcr EVP Advtech

Not confirmed

Share of stake not shown: share of stake is being verified. Why

$2.6MTo cover taxes

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesOne dollar scale for every month; the tallest bar is labeled

Recent activity

Past 30 days, Sep 17, 2026 to Oct 16, 2026

No officer or director trades were reported for the past 30 days. The most recent before that:

Sep 2, 2026Daniel Wilson sold 773 shares ($94K) to cover taxes on vesting stock.

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Daniel Wilson Chief Financial Officer	773	$121.83	n/a	n/a	Sep 2, 2026	Sep 3, 2026

Common questions

Is the iRhythm Holdings, Inc. CEO selling stock?

Yes. Quentin Blackford sold 80K shares ($11.2M) in the past 12 months, none of it under a trading plan disclosed in the filings.

Why are iRhythm Holdings, Inc. insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 15% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 85% were to cover taxes. A trading plan schedules sales in advance.

Are any iRhythm Holdings, Inc. insiders buying?

Yes. 1 officer or director reported 1 purchase in the past 12 months (Form 4 code P; rows the filings describe as reinvested dividends, plan purchases, private deals or moves into the person's own trust are not counted).

The evidence

Who sold12 officers and directors: amount, % of holdings, trading plan

Who sold	Amount	% of holdings	Trading plan
Quentin Blackford President and CEO, Director	$11.2M 80K shares	Not confirmed share of stake is being verified. Why	To cover taxes
Chad Patterson Chief Comm & Product Officer	$3.1M 23K shares	Not confirmed share of stake is being verified. Why	2% under a disclosed plan, 98% to cover taxes
Patrick Murphy CBO and CLO	$3.0M 22K shares	Not confirmed share of stake is being verified. Why	To cover taxes
Daniel Wilson Chief Financial Officer	$2.9M 17K shares	Not confirmed share of stake is being verified. Why	57% under a disclosed plan, 43% to cover taxes
Minang Turakhia Chief Med/Sci Ofcr EVP Advtech	$2.6M 20K shares	Not confirmed share of stake is being verified. Why	To cover taxes
Abhijit Talwalkar Director	$2.3M 16K shares	Not confirmed share of stake is being verified. Why	Disclosed plan
Sumi Shrishrimal EVP, Chief Risk Officer	$2.1M 16K shares	Not confirmed share of stake is being verified. Why	To cover taxes
Mervin Smith EVP Strategic Business Ops	$1.2M 9.3K shares	Not confirmed share of stake is being verified. Why	33% under a disclosed plan, 67% to cover taxes
Marc Rosenbaum Chief Accounting Officer	$873K 6.6K shares	Not confirmed share of stake is being verified. Why	5% under a disclosed plan, 95% to cover taxes
Julianne Rodda EVP, Chief People Officer	$258K 2.1K shares	Not confirmed share of stake is being verified. Why	To cover taxes
Brian Lawrence Chief Technology Officer	$122K 1K shares	Not confirmed share of stake is being verified. Why	To cover taxes
Sean Freeman EVP, Strategy & Corp Devt	$114K 918 shares	Not confirmed share of stake is being verified. Why	To cover taxes

The full ownership picture0 of 21 officers and directors confirmed

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

Insider	Held Oct 16, 2025	Sold	Held Oct 16, 2026	Still held
Quentin Blackford ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Quentin Blackford are complete. President and CEO, Director	n/a	−80K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Quentin Blackford Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Quentin Blackford are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Patrick Murphy ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Patrick Murphy are complete. CBO and CLO	n/a	−22K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Patrick Murphy Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Patrick Murphy are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Chad Patterson ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Chad Patterson are complete. Chief Comm & Product Officer	n/a	−23K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Chad Patterson Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Chad Patterson are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Minang Turakhia ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Minang Turakhia are complete. Chief Med/Sci Ofcr EVP Advtech	n/a	−20K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Minang Turakhia Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Minang Turakhia are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Daniel Wilson ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Daniel Wilson are complete. Chief Financial Officer	n/a	−17K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Daniel Wilson Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Daniel Wilson are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Sumi Shrishrimal ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Sumi Shrishrimal are complete. EVP, Chief Risk Officer	n/a	−16K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Sumi Shrishrimal Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Sumi Shrishrimal are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Julianne Rodda ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Julianne Rodda are complete. EVP, Chief People Officer	n/a	−2.1K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Julianne Rodda Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Julianne Rodda are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Abhijit Talwalkar ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Abhijit Talwalkar are complete. Director	n/a	−16K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Abhijit Talwalkar Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Abhijit Talwalkar are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Mervin Smith ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mervin Smith are complete. EVP Strategic Business Ops	n/a	−9.3K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Mervin Smith Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mervin Smith are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Brian Lawrence ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Brian Lawrence are complete. Chief Technology Officer	n/a	−1K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Brian Lawrence Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Brian Lawrence are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Mark Rubash ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mark Rubash are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Mark Rubash Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mark Rubash are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Ralph Snyderman ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Ralph Snyderman are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Ralph Snyderman Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Ralph Snyderman are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Bruce Bodaken ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Bruce Bodaken are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Bruce Bodaken Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Bruce Bodaken are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Marc Rosenbaum ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Marc Rosenbaum are complete. Chief Accounting Officer	n/a	−6.6K	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Marc Rosenbaum Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Marc Rosenbaum are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Karen Ling ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Karen Ling are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Karen Ling Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Karen Ling are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Merz Bairey ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Merz Bairey are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Merz Bairey Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Merz Bairey are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Sean Freeman ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Sean Freeman are complete. EVP, Strategy & Corp Devt	n/a	−918	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Sean Freeman Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Sean Freeman are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Brian Yoor ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Brian Yoor are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Brian Yoor Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Brian Yoor are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Kevin Oboyle ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Kevin Oboyle are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Kevin Oboyle Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Kevin Oboyle are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Karen McGinnis ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Karen McGinnis are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Karen McGinnis Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Karen McGinnis are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)
Jason Patten ! Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Jason Patten are complete. Director	n/a	0	n/a	n/a
Vesting, gifts, unvested awards and holding lines for Jason Patten Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jason Patten are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts)

Holdings and share of stake for iRhythm Holdings, Inc. are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.

What explains the selling$29.6M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $29.6M across 215,267 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

Disclosed plan · $4.5M · 15%

85%

The lighter segment is sales with no plan disclosed in the filing ($25.2M), including tax-related sales outside a plan.

Taxes

$25.2M of sales (84.9%) cite tax obligations in their footnotes. Example: Daniel Wilson, Sep 2, 2026

Purchases · 1 buyer (1 trade)

1 officer or director bought shares in this period, in 1 trade(Form 4 code P, leaving out rows the filings describe as reinvested dividends, plan purchases, private deals or moves into the person's own trust). Across all their filings on record there are 4 purchase trades.

Seller	Shares sold	Proceeds	Under a disclosed plan	Share of total	Sales dates
Quentin Blackford President and CEO, Director	80K	$11.2M	0%	38%	Nov 3, 2025 to Aug 10, 2026
Chad Patterson Chief Comm & Product Officer	23K	$3.1M	2%	10%	Dec 2, 2025 to Aug 10, 2026
Patrick Murphy CBO and CLO	22K	$3.0M	0%	10%	Dec 2, 2025 to Aug 10, 2026
Daniel Wilson Chief Financial Officer	17K	$2.9M	57%	10%	Oct 31, 2025 to Sep 2, 2026
Minang Turakhia Chief Med/Sci Ofcr EVP Advtech	20K	$2.6M	0%	9%	Feb 25, 2026 to Aug 10, 2026
Abhijit Talwalkar Director	16K	$2.3M	100%	8%	Nov 10, 2025 to May 11, 2026
Sumi Shrishrimal EVP, Chief Risk Officer	16K	$2.1M	0%	7%	Feb 25, 2026 to Aug 10, 2026
Mervin Smith EVP Strategic Business Ops	9.3K	$1.2M	33%	4%	Feb 24, 2026 to Aug 3, 2026
Marc Rosenbaum Chief Accounting Officer	6.6K	$873K	5%	3%	Feb 24, 2026 to Jun 2, 2026
Julianne Rodda EVP, Chief People Officer	2.1K	$258K	0%	0.9%	Aug 3, 2026 to Aug 3, 2026
Brian Lawrence Chief Technology Officer	1K	$122K	0%	0.4%	May 4, 2026 to May 4, 2026
Sean Freeman EVP, Strategy & Corp Devt	918	$114K	0%	0.4%	Jul 2, 2026 to Jul 2, 2026

Sales by month

Month	Sale proceeds	Disclosed plan	To cover taxes	No plan disclosed
Oct 2025	$1.7M	$1.7M	$0	$0
Nov 2025	$3.5M	$925K	$2.6M	$0
Dec 2025	$510K	$52K	$458K	$0
Jan 2026	$0	$0	$0	$0
Feb 2026	$10.4M	$917K	$9.5M	$0
Mar 2026	$4.8M	$295K	$4.5M	$0
Apr 2026	$0	$0	$0	$0
May 2026	$749K	$626K	$122K	$0
Jun 2026	$265K	$0	$265K	$0
Jul 2026	$292K	$0	$292K	$0
Aug 2026	$7.3M	$0	$7.3M	$0
Sep 2026	$94K	$0	$94K	$0
Oct 2026	$0	$0	$0	$0

Is this normal? Selling year by year5 earlier years to compare with

More than usual: about 2.5x the 5-year average. 12 insiders sold; the average is 8 a year.

12 months ending	Shares sold	Insiders who sold	Proceeds
Oct 16, 2026 Latest 12 months	215K	12	$29.6M
Oct 16, 2025 1 year earlier	176K	9	$21.8M
Oct 16, 2024 2 years earlier	68K	10	$7.6M
Oct 17, 2023 3 years earlier	39K	9	$4.6M
Oct 17, 2022 4 years earlier	47K	6	$5.8M
Oct 17, 2021 5 years earlier	95K	4	$22.3M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty21 officers and directors not confirmed

Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for iRhythm Holdings, Inc. are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology491 filings on record, 67 filed in the 12-month period, and how we read them

All 491 Forms 3, 4 and 5 on record for iRhythm Holdings, Inc. (SEC CIK 1388658), filed from Oct 19, 2016 to Sep 3, 2026; 67 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 16, 2026. Prices are the ones reported in each filing, often weighted averages.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (22)No filing in 18 months; last reported balances, not in any total

Name	Last filed	Last reported balance
Brice Bobzien	Aug 12, 2024	24,428 shares, last reported balance as of Aug 9, 2024
Mojdeh Poul	Jun 3, 2024	4,240 shares, last reported balance as of May 29, 2024
Mark Day	Mar 5, 2024	61,164 shares, last reported balance as of Mar 4, 2024
Douglas Devine	Mar 7, 2023	29,566 shares, last reported balance as of Mar 3, 2023
Reyna Fernandez	Mar 1, 2023	14,615 shares, last reported balance as of Feb 27, 2023
Renee Budig	May 31, 2022	5,297 shares, last reported balance as of May 26, 2022
David Vort	Mar 8, 2022	27,952 shares, last reported balance as of Mar 4, 2022
Kevin King	Mar 8, 2022	250,422 shares, last reported balance as of Mar 4, 2022
Raymond Scott	Jun 22, 2021	5,046 shares, last reported balance as of Jun 18, 2021
Michael Coyle	Feb 26, 2021	33,247 shares, last reported balance as of Feb 24, 2021
Karim Karti	Apr 27, 2020	51,267 shares, last reported balance as of Mar 1, 2020
Matthew Garrett	Mar 3, 2020	24,254 shares, last reported balance as of Mar 1, 2020
Derrick Sung	Mar 18, 2019	25,902 shares, last reported balance as of Mar 1, 2019
Vijay Lathi	Mar 12, 2018	1,405 shares, last reported balance as of Mar 9, 2018
Vijay Lathi	Mar 12, 2018	No balance on record
SYNERGY LIFE SCIENCE PARTNERS L P	Jun 9, 2017	4,419,048 shares, last reported balance as of Jun 8, 2017
Casper de Clercq	May 12, 2017	No balance on record
Casper de Clercq	May 12, 2017	No balance on record
Norwest Venture Partners XI, LP	May 10, 2017	569,494 shares, last reported balance as of May 8, 2017
A/S Novo	Oct 26, 2016	2,124,448 shares, last reported balance as of Oct 25, 2016
New Leaf Ventures II, L.P.	Oct 25, 2016	1,741,589 shares, last reported balance as of Oct 25, 2016
Tiba Aynechi		No balance on record

Spotted something wrong on this page? Report an error. We check every report against the SEC filing and list what we fix in the corrections log.