SEC Insider Transactions from Day Mark J..

Last updated: 2026-03-14 11:25 UTC | Total transactions: 11

Day Mark J. has filed 11 insider transactions across 1 company since February 2023.

Most recent transaction: a sale of 3248 shares of iRhythm Holdings, Inc. ($IRTC) on March 04, 2024.

Activity breakdown: 0 open-market purchases and 5 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 4, 2024 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer S Common Stock 3248 $111.14 61,164.0000 0 5.04% 0.00%
Feb. 28, 2024 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer A Common Stock 7734 $0.00 65,887.0000 0 13.30% 0.00%
Feb. 29, 2024 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer S Common Stock 1475 $121.96 64,412.0000 0 2.24% 0.00%
Feb. 27, 2024 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer A Common Stock 2621 $0.00 58,153.0000 0 4.72% 0.00%
Aug. 3, 2023 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer M Common Stock 486 $36.22 55,522.0000 0 0.88% 0.00%
Aug. 3, 2023 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer M Employee Stock Option (right to buy) 486 $0.00 13,591.0000 0 3.45% 0.00%
March 3, 2023 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer S Common Stock 2116 $117.23 54,815.0000 0 3.72% 0.00%
Feb. 27, 2023 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer A Common Stock 8354 $0.00 55,376.0000 0 17.77% 0.00%
Feb. 27, 2023 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer A Common Stock 3468 $0.00 58,844.0000 0 6.26% 0.00%
Feb. 28, 2023 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer S Common Stock 1898 $117.83 56,946.0000 0 3.23% 0.00%
Feb. 28, 2023 iRhythm Holdings, Inc. $IRTC Day Mark J. Chief Technology Officer S Common Stock 15 $119.28 56,931.0000 0 0.03% 0.00%