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person · Reporting owner

Day Mark J.

Disclosed activity across 1 company

Tapewire entity
93469
SEC CIK
0001769845

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
iRhythm Holdings, Inc.IRTC · Entity 1499Chief Technology OfficerMarch 04, 2024March 05, 2024

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

iRhythm Holdings, Inc.

Report date March 04, 2024 · Filed March 05, 2024

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect61,164 Reported balance After 2024-03-04 transaction · row 1
1 source row

Row 1 · 2024-03-04 · Sale · Disposed 3,248 · Balance 61,164

F1: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of Restricted Stock Units.

Filing footnotes · ownership attribution and instrument terms

F1: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of Restricted Stock Units.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 04, 2024 Filed Mar 5, 2024 21:53 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 3,248 $111.14 $360,982.72
Disclosure

SEC source: 0001388658-24-000061 · wk-form4_1709675551.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,164

F1 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of Restricted Stock Units.

Read SEC document
February 29, 2024 Filed Mar 2, 2024 00:18 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 1,475 $121.96 $179,891.00
Disclosure

SEC source: 0001388658-24-000042 · wk-form4_1709338724.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,412

F2 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of RSUs.

Read SEC document
February 28, 2024 Filed Mar 2, 2024 00:18 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 7,734 $0.00 $0.00
Disclosure

SEC source: 0001388658-24-000042 · wk-form4_1709338724.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,887

F1 · shares: These securities are restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. 25% of the RSUs vest on February 28, 2025 and each one-year anniversary thereafter, subject to the Reporting Person continuing as a service provider through each such date.

Read SEC document
February 27, 2024 Filed Feb 29, 2024 22:13 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 2,621 $0.00 $0.00
Disclosure

SEC source: 0001388658-24-000022 · wk-form4_1709244818.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,153

F1 · shares: Represents the acquisition of shares upon the determination of the Compensation Committee of the Board of Directors of the Issuer that the performance conditions were met with respect to performance RSUs granted to the Reporting Person on March 1, 2021.

F2 · balance_after: Includes 10 shares acquired under the Issuer's employee stock purchase plan on November 30, 2023.

Read SEC document
August 03, 2023 Filed Aug 4, 2023 12:48 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 486 $0.00 Strike: $36.22 $0.00
Disclosure

SEC source: 0001388658-23-000107 · wk-form4_1691153302.xml · derivative · entry 2

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,591

Underlying: Common Stock · 486 shares

Expires 2027-02-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option, originally granted for 23,300 shares, of which 9,223 have been exercised, vested as to 25% of the shares on March 1, 2018, and as to 1/48 of the shares each month thereafter.

Read SEC document
August 03, 2023 Filed Aug 4, 2023 12:48 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionCommon Stock 486 $36.22 $17,602.92
Disclosure

SEC source: 0001388658-23-000107 · wk-form4_1691153302.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,522

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 221 shares acquired under the Issuer's employee stock purchase plan on May 31, 2023 in transactions that were exempt under Rules 16b-3(c) and 16b-3(d).

Read SEC document
March 03, 2023 Filed Mar 7, 2023 19:06 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 2,116 $117.23 $248,058.68
Disclosure

SEC source: 0001388658-23-000034 · wf-form4_167821599025060.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,815

F1 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of restricted stock units.

Read SEC document
February 28, 2023 Filed Mar 1, 2023 23:09 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 15 $119.28 $1,789.20
Disclosure

SEC source: 0001388658-23-000016 · wf-form4_167771215317552.xml · nonDerivative · entry 4

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,931

F5 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of RSUs.

Read SEC document
February 28, 2023 Filed Mar 1, 2023 23:09 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 1,898 $117.83 $223,641.34
Disclosure

SEC source: 0001388658-23-000016 · wf-form4_167771215317552.xml · nonDerivative · entry 3

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,946

F5 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of RSUs.

Read SEC document
February 27, 2023 Filed Mar 1, 2023 23:09 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 3,468 $0.00 $0.00
Disclosure

SEC source: 0001388658-23-000016 · wf-form4_167771215317552.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,844

F4 · shares: Represents the acquisition of shares upon the determination of the Compensation Committee of the Board of Directors of the Issuer that the performance conditions were met with respect to performance RSUs granted to the Reporting Person on February 25, 2020.

Read SEC document
February 27, 2023 Filed Mar 1, 2023 23:09 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 8,354 $0.00 $0.00
Disclosure

SEC source: 0001388658-23-000016 · wf-form4_167771215317552.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,376

F1 · shares: These securities are restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. 25% of the RSUs vest on March 1, 2024 and each one-year anniversary thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F2 · balance_after: Includes 303 shares acquired under the Issuer's employee stock purchase plan on May 31, 2022.

F3 · balance_after: Includes 14 shares acquired under the Issuer's employee stock purchase plan on November 30, 2022.

Read SEC document
March 04, 2022 Filed Mar 8, 2022 17:59 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 2,518 $132.67 $334,068.85
Disclosure

SEC source: 0001388658-22-000035 · wf-form4_164676234350136.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,705

F1 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of restricted stock units.

F2 · price: This transaction was executed in multiple trades at prices ranging from $132.67 to $133.00 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
February 17, 2022 Filed Feb 18, 2022 01:46 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 3,975 $121.04 $481,134.00
Disclosure

SEC source: 0001388658-22-000002 · wf-form4_164514875137430.xml · nonDerivative · entry 4

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,223

F4 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of RSUs.

Read SEC document
February 17, 2022 Filed Feb 18, 2022 01:46 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 87 $118.93 $10,346.91
Disclosure

SEC source: 0001388658-22-000002 · wf-form4_164514875137430.xml · nonDerivative · entry 3

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,198

F4 · shares: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of RSUs.

Read SEC document
February 15, 2022 Filed Feb 18, 2022 01:46 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 7,152 $0.00 $0.00
Disclosure

SEC source: 0001388658-22-000002 · wf-form4_164514875137430.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,285

F3 · shares: Represents the acquisition of shares upon the determination of the Compensation Committee of the Board of Directors of the Issuer that the performance conditions were met with respect to performance RSUs granted to the Reporting Person on January 19, 2021.

Read SEC document
February 15, 2022 Filed Feb 18, 2022 01:46 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 6,018 $0.00 $0.00
Disclosure

SEC source: 0001388658-22-000002 · wf-form4_164514875137430.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,133

F1 · shares: These securities are restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. 25% of the RSUs vest on March 1, 2023 and each one-year anniversary thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F2 · balance_after: Includes 200 shares acquired under the Issuer's employee stock purchase plan on May 31, 2021.

Read SEC document
March 01, 2021 Filed Mar 3, 2021 17:20 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Tax withholdingCommon Stock 2,518 $152.92 $385,052.56
Disclosure

SEC source: 0001388658-21-000043 · wf-form4_161479199721196.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,962

F1 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.

Read SEC document
March 01, 2021 Filed Mar 23, 2021 00:12 UTC Amendment iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 2,953 $0.00 $0.00
Disclosure

SEC source: 0001388658-21-000051 · wf-form4a_161645833339257.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,915

F1 · shares: The reported securities are represented by restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's Common Stock. 25% of the RSUs vest on March 1, 2022 and each one-year anniversary thereafter.

F2 · acquired: The acquisition of the RSUs was omitted from the Reporting Person's original Form 4 filed March 3, 2021.

Read SEC document
February 23, 2021 Filed Feb 26, 2021 01:17 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 123 $63.95 Strike: $63.95 $7,865.85
Disclosure

SEC source: 0001388658-21-000036 · wf-form4_161430225131702.xml · derivative · entry 6

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,577

Underlying: Common Stock · 123 shares

Expires 2028-02-27

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The option vests as to 25% of the shares on March 1, 2019, and as to 1/48 of the shares each month thereafter.

Read SEC document
February 23, 2021 Filed Feb 26, 2021 01:17 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 971 $36.22 Strike: $36.22 $35,169.62
Disclosure

SEC source: 0001388658-21-000036 · wf-form4_161430225131702.xml · derivative · entry 5

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,077

Underlying: Common Stock · 971 shares

Expires 2027-02-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option, originally granted for 23,300 shares, of which 8,252 have been exercised, vested as to 25% of the shares on March 1, 2018, and as to 1/48 of the shares each month thereafter.

Read SEC document
February 23, 2021 Filed Feb 26, 2021 01:17 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 8,300 $17.00 Strike: $17.00 $141,100.00
Disclosure

SEC source: 0001388658-21-000036 · wf-form4_161430225131702.xml · derivative · entry 4

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,485

Underlying: Common Stock · 8,300 shares

Expires 2026-10-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The option, originally granted for 33,998 shares, of which 16,713 have been exercised, vested as to 25% of the shares on September 21, 2017, and as to 1/48 of the shares each month thereafter.

Read SEC document
February 23, 2021 Filed Feb 26, 2021 01:17 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionCommon Stock 123 $63.95 $7,865.85
Disclosure

SEC source: 0001388658-21-000036 · wf-form4_161430225131702.xml · nonDerivative · entry 3

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,480

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 23, 2021 Filed Feb 26, 2021 01:17 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionCommon Stock 971 $36.22 $35,169.62
Disclosure

SEC source: 0001388658-21-000036 · wf-form4_161430225131702.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,357

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 23, 2021 Filed Feb 26, 2021 01:17 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionCommon Stock 8,300 $17.00 $141,100.00
Disclosure

SEC source: 0001388658-21-000036 · wf-form4_161430225131702.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,386

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 17, 2021 Filed Jan 21, 2021 02:26 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Tax withholdingCommon Stock 4,578 $250.57 $1,147,109.46
Disclosure

SEC source: 0001388658-21-000010 · wf-form4_161119594982192.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,086

F2 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the issuance of shares pursuant to PSUs granted to the Reporting Person on June 19, 2020.

Read SEC document
January 17, 2021 Filed Jan 21, 2021 02:26 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 10,353 $0.00 $0.00
Disclosure

SEC source: 0001388658-21-000010 · wf-form4_161119594982192.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,664

F1 · shares: Represents the acquisition of shares upon the determination of the Compensation Committee of the Board of Directors of the Issuer that the performance conditions were met with respect to performance restricted stock units (PSUs) granted to the Reporting Person on June 19, 2020.

Read SEC document
December 31, 2020 Filed Jan 6, 2021 00:55 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 1,500 $0.00 Strike: $17.00 $0.00
Disclosure

SEC source: 0001388658-21-000002 · wf-form4_160989448876023.xml · derivative · entry 4

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,785

Underlying: Common Stock · 1,500 shares

Expires 2026-10-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: All of the shares subject to this option are fully vested and exercisable as of the date hereof.

Read SEC document
December 31, 2020 Filed Jan 6, 2021 00:55 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 2,298 $0.00 Strike: $8.18 $0.00
Disclosure

SEC source: 0001388658-21-000002 · wf-form4_160989448876023.xml · derivative · entry 3

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,298 shares

Expires 2025-12-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: All of the shares subject to this option are fully vested and exercisable as of the date hereof.

Read SEC document
December 31, 2020 Filed Jan 6, 2021 00:55 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionCommon Stock 1,500 $17.00 $25,500.00
Disclosure

SEC source: 0001388658-21-000002 · wf-form4_160989448876023.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,311

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 31, 2020 Filed Jan 6, 2021 00:55 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionCommon Stock 2,298 $8.18 $18,797.64
Disclosure

SEC source: 0001388658-21-000002 · wf-form4_160989448876023.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,811

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 34 shares acquired under the Issuer's employee stock purchase plan on November 30, 2020.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 657 $238.48 $156,682.81
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 9

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,479

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F9 · price: This transaction was executed in multiple trades at prices ranging from $238.115 to $238.66 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 1,146 $236.88 $271,468.15
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 8

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,136

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F8 · price: This transaction was executed in multiple trades at prices ranging from $236.41 to $237.255 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 556 $235.11 $130,718.99
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 7

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,282

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F7 · price: This transaction was executed in multiple trades at prices ranging from $235.00 to $235.37 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 8 $231.20 $1,849.60
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 6

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,838

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 4,280 $230.36 $985,939.94
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 5

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,846

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F6 · price: This transaction was executed in multiple trades at prices ranging from $230.13 to $230.80 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 4,406 $229.45 $1,010,956.70
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 4

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,126

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F5 · price: This transaction was executed in multiple trades at prices ranging from $229.07 to $230.00 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

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October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 3,557 $228.68 $813,419.38
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 3

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,532

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F4 · price: This transaction was executed in multiple trades at prices ranging from $228.07 to $229.02 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

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October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 2,280 $227.52 $518,752.44
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,089

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F3 · price: This transaction was executed in multiple trades at prices ranging from $227.05 to $228.04 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

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October 01, 2020 Filed Oct 5, 2020 21:00 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 610 $226.59 $138,220.57
Disclosure

SEC source: 0001388658-20-000244 · wf-form4_160193160127859.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,369

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2020.

F2 · price: This transaction was executed in multiple trades at prices ranging from $226.02 to $226.64 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

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August 11, 2020 Filed Aug 13, 2020 19:22 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 243 $187.70 $45,611.10
Disclosure

SEC source: 0001388658-20-000188 · wf-form4_159734654389065.xml · nonDerivative · entry 6

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,979

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 20, 2020.

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August 11, 2020 Filed Aug 13, 2020 19:22 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 40 $185.62 $7,424.80
Disclosure

SEC source: 0001388658-20-000188 · wf-form4_159734654389065.xml · nonDerivative · entry 5

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,222

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 20, 2020.

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August 11, 2020 Filed Aug 13, 2020 19:22 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 360 $184.96 $66,586.90
Disclosure

SEC source: 0001388658-20-000188 · wf-form4_159734654389065.xml · nonDerivative · entry 4

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,262

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 20, 2020.

F6 · price: This transaction was executed in multiple trades at prices ranging from $184.53 to $185.46 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

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August 11, 2020 Filed Aug 13, 2020 19:22 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 2,335 $183.87 $429,336.22
Disclosure

SEC source: 0001388658-20-000188 · wf-form4_159734654389065.xml · nonDerivative · entry 3

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,622

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 20, 2020.

F5 · price: This transaction was executed in multiple trades at prices ranging from $183.42 to $184.33 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

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August 11, 2020 Filed Aug 13, 2020 19:22 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 1,586 $182.96 $290,177.89
Disclosure

SEC source: 0001388658-20-000188 · wf-form4_159734654389065.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,957

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 20, 2020.

F4 · price: This transaction was executed in multiple trades at prices ranging from $182.40 to $183.29 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

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August 11, 2020 Filed Aug 13, 2020 19:22 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 SaleCommon Stock 436 $181.63 $79,190.29
Disclosure

SEC source: 0001388658-20-000188 · wf-form4_159734654389065.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,543

F1 · kind: The option sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 20, 2020.

F2 · price: This transaction was executed in multiple trades at prices ranging from $181.08 to $181.97 per share. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3 · balance_after: Includes 302 shares acquired under the Issuer's employee stock purchase plan on May 29, 2020.

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March 01, 2020 Filed Mar 3, 2020 21:34 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Tax withholdingCommon Stock 1,800 $86.97 $156,546.00
Disclosure

SEC source: 0001388658-20-000044 · wf-form4_158327125389921.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,677

F1 · shares: Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.

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February 25, 2020 Filed Feb 28, 2020 01:55 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 GrantCommon Stock 4,616 $0.00 $0.00
Disclosure

SEC source: 0001388658-20-000026 · wf-form4_158285491839936.xml · nonDerivative · entry 1

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,477

F1 · shares: The reported securities are represented by restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of IRTC common stock. 50% of the RSUs vest on February 25, 2022, and 25% on each one-year anniversary thereafter.

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December 31, 2019 Filed Jan 3, 2020 20:21 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 2,661 $0.00 Strike: $8.18 $0.00
Disclosure

SEC source: 0001388658-20-000002 · wf-form4_157808284310625.xml · derivative · entry 4

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,298

Underlying: Common Stock · 2,661 shares

Expires 2025-12-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option, originally granted for 16,999 shares, of which 14,701 have been exercised, vested as to 25% of the shares on December 15, 2016, and as to 1/48 of the shares each month thereafter.

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December 31, 2019 Filed Jan 3, 2020 20:21 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 638 $0.00 Strike: $5.82 $0.00
Disclosure

SEC source: 0001388658-20-000002 · wf-form4_157808284310625.xml · derivative · entry 3

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 638 shares

Expires 2025-02-10

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: All of the shares subject to this option are fully vested and exercisable as of the date hereof.

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December 31, 2019 Filed Jan 3, 2020 20:21 UTC iRhythm Holdings, Inc. IRTC · Entity 1499 Exercise / conversionCommon Stock 2,661 $8.18 $21,766.98
Disclosure

SEC source: 0001388658-20-000002 · wf-form4_157808284310625.xml · nonDerivative · entry 2

Day Mark J. · CIK 0001769845 · EVP, Research & Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,861

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.