IRTC insider transactions

EVP, Chief Risk Officer Shrishrimal Sumi was granted 133 shares and sold $185,652 worth of shares (1,716 units at $108.19), decreasing direct ownership by 4% to 40,287 units (SEC Form 4) to satisfy tax liability

Chief Accounting Officer Rosenbaum Marc Wade was granted 178 shares and sold $78,870 worth of shares (729 units at $108.19), decreasing direct ownership by 3% to 16,155 units (SEC Form 4) to cover withholding tax

CHIEF MED/SCI OFCR EVP ADVTECH Turakhia Minang was granted 137 shares, increasing direct ownership by 0.25% to 55,043 units (SEC Form 4)

CHIEF COMM & PRODUCT OFFICER Patterson Chad was granted 177 shares, increasing direct ownership by 0.30% to 58,341 units (SEC Form 4)

EVP, Strategy & Corp Devt Freeman Sean Clinton was granted 273 shares, increasing direct ownership by 2% to 14,559 units (SEC Form 4)

President and CEO Blackford Quentin S. was granted 178 shares, increasing direct ownership by 0.09% to 204,333 units (SEC Form 4)

Director Bairey Merz Cathleen Noel was granted 1,573 shares, increasing direct ownership by 18% to 10,546 units (SEC Form 4)

Director Bodaken Bruce G. was granted 1,573 shares, increasing direct ownership by 12% to 14,211 units (SEC Form 4)

Director Ling Karen was granted 1,573 shares, increasing direct ownership by 16% to 11,141 units (SEC Form 4)

Director Mcginnis Karen K was granted 1,573 shares, increasing direct ownership by 77% to 3,608 units (SEC Form 4)

Director Oboyle Kevin C was granted 1,573 shares, increasing direct ownership by 77% to 3,608 units (SEC Form 4)

Director Talwalkar Abhijit Y was granted 1,573 shares, increasing direct ownership by 8% to 21,872 units (SEC Form 4)

Director Yoor Brian B was granted 1,573 shares, increasing direct ownership by 28% to 7,171 units (SEC Form 4)

Director Talwalkar Abhijit Y bought $56,892 worth of shares (5,312 units at $10.71) and sold $626,430 worth of shares (5,312 units at $117.93) as part of a pre-agreed trading plan (SEC Form 4)

Chief Technology Officer Lawrence Brian Lee sold $122,491 worth of shares (1,014 units at $120.80), decreasing direct ownership by 5% to 20,154 units (SEC Form 4) (withholding tax)

SEC Form 3 filed by new insider Rodda Julianne

SEC Form 4 filed by Patten Jason H

SEC Form 3 filed by new insider Patten Jason H

EVP Strategic Business Ops Smith Mervin sold $295,466 worth of shares (2,585 units at $114.30), decreasing direct ownership by 10% to 23,027 units (SEC Form 4)

CHIEF MED/SCI OFCR EVP ADVTECH Turakhia Minang sold $517,259 worth of shares (4,027 units at $128.45), decreasing direct ownership by 7% to 54,906 units (SEC Form 4)

EVP, Chief Risk Officer Shrishrimal Sumi sold $363,484 worth of shares (2,830 units at $128.44), decreasing direct ownership by 6% to 41,870 units (SEC Form 4)

EVP Strategic Business Ops Smith Mervin sold $173,652 worth of shares (1,352 units at $128.44), decreasing direct ownership by 5% to 25,612 units (SEC Form 4)

CHIEF COMM & PRODUCT OFFICER Patterson Chad sold $570,804 worth of shares (4,444 units at $128.44), decreasing direct ownership by 7% to 58,164 units (SEC Form 4)

CBO and CLO Murphy Patrick Michael sold $559,624 worth of shares (4,357 units at $128.44), decreasing direct ownership by 6% to 63,203 units (SEC Form 4)

Chief Accounting Officer Rosenbaum Marc Wade sold $104,815 worth of shares (816 units at $128.45), decreasing direct ownership by 5% to 16,706 units (SEC Form 4)

Chief Financial Officer Wilson Daniel G. sold $436,076 worth of shares (3,395 units at $128.45), decreasing direct ownership by 9% to 35,660 units (SEC Form 4)

President and CEO Blackford Quentin S. sold $1,774,174 worth of shares (13,813 units at $128.44), decreasing direct ownership by 6% to 204,155 units (SEC Form 4)

Chief Financial Officer Wilson Daniel G. was granted 8,361 shares, increasing direct ownership by 27% to 39,055 units (SEC Form 4)

CHIEF MED/SCI OFCR EVP ADVTECH Turakhia Minang was granted 10,034 shares, increasing direct ownership by 21% to 58,933 units (SEC Form 4)

President and CEO Blackford Quentin S. was granted 31,842 shares, increasing direct ownership by 17% to 217,968 units (SEC Form 4)

CHIEF COMM & PRODUCT OFFICER Patterson Chad was granted 10,870 shares, increasing direct ownership by 21% to 62,608 units (SEC Form 4)

Chief Accounting Officer Rosenbaum Marc Wade was granted 2,508 shares, increasing direct ownership by 17% to 17,522 units (SEC Form 4)

CBO and CLO Murphy Patrick Michael was granted 7,024 shares, increasing direct ownership by 12% to 67,560 units (SEC Form 4)

EVP Strategic Business Ops Smith Mervin was granted 6,689 shares, increasing direct ownership by 33% to 26,964 units (SEC Form 4)

EVP, Strategy & Corp Devt Freeman Sean Clinton was granted 7,525 shares, increasing direct ownership by 111% to 14,286 units (SEC Form 4)

EVP, Chief Risk Officer Shrishrimal Sumi was granted 5,518 shares, increasing direct ownership by 14% to 44,700 units (SEC Form 4)

Chief Technology Officer Lawrence Brian Lee was granted 6,689 shares, increasing direct ownership by 46% to 21,168 units (SEC Form 4)

Chief Financial Officer Wilson Daniel G. was granted 9,412 shares and sold $702,553 worth of shares (5,188 units at $135.42), increasing direct ownership by 16% to 30,694 units (SEC Form 4)

CHIEF MED/SCI OFCR EVP ADVTECH Turakhia Minang was granted 15,060 shares and sold $1,056,809 worth of shares (7,804 units at $135.42), increasing direct ownership by 17% to 48,899 units (SEC Form 4)

EVP Strategic Business Ops Smith Mervin sold $547,228 worth of shares (4,041 units at $135.42) and was granted 9,210 shares, increasing direct ownership by 34% to 20,275 units (SEC Form 4)

EVP, Chief Risk Officer Shrishrimal Sumi was granted 11,294 shares and sold $841,899 worth of shares (6,217 units at $135.42), increasing direct ownership by 15% to 39,182 units (SEC Form 4)

Chief Accounting Officer Rosenbaum Marc Wade was granted 9,210 shares and sold $649,604 worth of shares (4,797 units at $135.42), increasing direct ownership by 42% to 15,014 units (SEC Form 4)

CHIEF COMM & PRODUCT OFFICER Patterson Chad was granted 17,318 shares and sold $1,214,301 worth of shares (8,967 units at $135.42), increasing direct ownership by 19% to 51,738 units (SEC Form 4)

CBO and CLO Murphy Patrick Michael was granted 15,060 shares and sold $1,056,945 worth of shares (7,805 units at $135.42), increasing direct ownership by 14% to 60,536 units (SEC Form 4)

President and CEO Blackford Quentin S. was granted 46,687 shares and sold $3,458,599 worth of shares (25,540 units at $135.42), increasing direct ownership by 13% to 186,126 units (SEC Form 4)

Chief Accounting Officer Rosenbaum Marc Wade sold $39,455 worth of shares (280 units at $140.91), decreasing direct ownership by 3% to 10,601 units (SEC Form 4)

EVP Strategic Business Ops Smith Mervin sold $103,146 worth of shares (732 units at $140.91), decreasing direct ownership by 5% to 15,106 units (SEC Form 4)

Director Talwalkar Abhijit Y exercised 5,312 shares at a strike of $10.71 and sold $773,980 worth of shares (5,312 units at $145.70) (SEC Form 4)

SEC Form 4 filed by iRhythm Technologies Inc.

CBO and CLO Murphy Patrick Michael sold $458,009 worth of shares (2,478 units at $184.83), decreasing direct ownership by 4% to 53,281 units (SEC Form 4)

CHIEF MED/SCI OFCR EVP ADVTECH Turakhia Minang was granted 250 shares, increasing direct ownership by 0.60% to 41,643 units (SEC Form 4)

EVP, Chief Risk Officer Shrishrimal Sumi was granted 73 shares, increasing direct ownership by 0.21% to 34,105 units (SEC Form 4)

Chief Accounting Officer Rosenbaum Marc Wade was granted 2 shares, increasing direct ownership by 0.02% to 10,881 units (SEC Form 4)

Director Talwalkar Abhijit Y exercised 5,312 shares at a strike of $10.71 and sold $924,962 worth of shares (5,312 units at $174.13) (SEC Form 4)

President and CEO Blackford Quentin S. sold $2,571,907 worth of shares (14,059 units at $182.94), decreasing direct ownership by 8% to 164,979 units (SEC Form 4)

Chief Financial Officer Wilson Daniel G. sold $1,659,520 worth of shares (8,000 units at $207.44), decreasing direct ownership by 23% to 26,470 units (SEC Form 4)

Chief Financial Officer Wilson Daniel G. sold $875,000 worth of shares (5,000 units at $175.00), decreasing direct ownership by 13% to 34,470 units (SEC Form 4)

Chief Financial Officer Wilson Daniel G. sold $123,285 worth of shares (737 units at $167.28), decreasing direct ownership by 2% to 39,470 units (SEC Form 4)

EVP, Chief Risk Officer Shrishrimal Sumi sold $109,129 worth of shares (653 units at $167.12), decreasing direct ownership by 2% to 34,032 units (SEC Form 4)

Chief Accounting Officer Rosenbaum Marc Wade sold $35,918 worth of shares (226 units at $158.93), decreasing direct ownership by 2% to 10,879 units (SEC Form 4)