iRhythm Technologies, Inc.
US ˙ NasdaqGS ˙ US4500561067

Introduction

This page provides a comprehensive analysis of the known insider trading history of Patrick Michael Murphy. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Patrick Michael Murphy has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:IRTC / iRhythm Technologies, Inc. CBO and CLO 55,759
US:DXCM / DexCom, Inc. EVP, Chief Legal Officer 16,254
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Patrick Michael Murphy. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases IRTC / iRhythm Technologies, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in IRTC / iRhythm Technologies, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

IRTC / iRhythm Technologies, Inc. Insider Trades
Insider Sales IRTC / iRhythm Technologies, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in IRTC / iRhythm Technologies, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2025-03-03 IRTC Murphy Patrick Michael 3,075 108.7700 3,075 108.7700 334,468 36 96.8400 -36,684 -10.97
2025-02-26 IRTC Murphy Patrick Michael 3,817 112.1300 3,817 112.1300 428,000
2025-02-26 IRTC Murphy Patrick Michael 12,513 108.9300 12,513 108.9300 1,363,041
2024-12-02 IRTC Murphy Patrick Michael 2,492 85.8900 2,492 85.8900 214,038
2024-03-04 IRTC Murphy Patrick Michael 1,525 111.1400 1,525 111.1400 169,488
2024-02-29 IRTC Murphy Patrick Michael 7,615 121.9600 7,615 121.9600 928,725
2023-12-05 IRTC Murphy Patrick Michael 1,686 88.8200 1,686 88.8200 149,751
2023-03-03 IRTC Murphy Patrick Michael 571 117.2300 571 117.2300 66,938
2022-12-02 IRTC Murphy Patrick Michael 1,704 106.7800 1,704 106.7800 181,953

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

IRTC / iRhythm Technologies, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Patrick Michael Murphy as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-03-04 2025-03-03 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -3,075 55,759 -5.23 108.77 -334,468 6,064,906
2025-02-27 2025-02-26 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -12,513 58,834 -17.54 108.93 -1,363,041 6,408,788
2025-02-27 2025-02-26 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -3,817 71,347 -5.08 112.13 -428,000 8,000,139
2025-02-27 2025-02-26 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 8,976 75,164 13.56
2025-02-27 2025-02-25 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 23,558 66,188 55.26
2025-02-27 2025-02-25 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 7,303 42,630 20.67
2024-12-03 2024-12-02 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -2,492 35,327 -6.59 85.89 -214,038 3,034,236
2024-03-05 2024-03-04 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -1,525 47,437 -3.11 111.14 -169,488 5,272,148
2024-03-01 2024-02-29 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -7,615 48,962 -13.46 121.96 -928,725 5,971,406
2024-03-01 2024-02-28 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 8,593 56,577 17.91
2024-02-29 2024-02-27 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 17,233 47,984 56.04
2023-12-06 2023-12-05 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -1,686 30,751 -5.20 88.82 -149,751 2,731,304
2023-03-07 2023-03-03 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -571 32,437 -1.73 117.23 -66,938 3,802,590
2023-03-01 2023-02-27 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 9,282 33,008 39.12
2022-12-06 2022-12-02 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -1,704 23,726 -6.70 106.78 -181,953 2,533,462
2022-06-14 3 IRTC iRhythm Technologies, Inc.
Common Stock
25,430
2021-09-13 2021-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -12 16,254 -0.07 541.76 -6,501 8,805,767
2021-09-13 2021-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -975 16,266 -5.66 541.36 -527,826 8,805,762
2021-08-27 2021-08-26 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 17,241 -2.82 517.24 -258,620 8,917,735
2021-07-27 2021-07-26 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 17,741 -2.74 458.79 -229,395 8,139,393
2021-06-29 2021-06-28 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 18,241 -2.67 431.49 -215,745 7,870,809
2021-05-27 2021-05-26 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 18,741 -2.60 350.00 -175,000 6,559,350
2021-04-27 2021-04-26 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 19,241 -2.53 415.83 -207,915 8,000,985
2021-03-30 2021-03-26 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 19,741 -2.47 350.00 -175,000 6,909,350
2021-03-12 2021-03-10 4 DXCM DEXCOM INC
Common Stock
S - Sale -3,471 20,241 -14.64 362.92 -1,259,685 7,345,803
2021-03-10 2021-03-08 4 DXCM DEXCOM INC
Common Stock
A - Award 5,634 23,712 31.16 0.00 6 24
2021-03-02 2021-02-26 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 18,078 -2.69 396.79 -198,395 7,173,170
2021-01-29 2021-01-27 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 18,578 -2.62 359.70 -179,850 6,682,507
2020-12-29 2020-12-28 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 19,078 -2.55 355.39 -177,695 6,780,130
2020-12-03 2020-12-01 4 DXCM DEXCOM INC
Common Stock
S - Sale X -6,154 19,578 -23.92 325.00 -2,000,050 6,362,850
2020-09-11 2020-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -1,003 25,732 -3.75 398.30 -399,497 10,249,107
2020-09-11 2020-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -152 26,735 -0.57 398.30 -60,542 10,648,604
2020-09-11 2020-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -1,289 26,887 -4.57 398.30 -513,411 10,709,146
2020-08-12 2020-08-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 28,176 -1.74 439.31 -219,655 12,377,999
2020-07-10 2020-07-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 28,676 -1.71 435.80 -217,900 12,497,001
2020-06-10 2020-06-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 29,176 -1.68 375.36 -187,680 10,951,503
2020-05-13 2020-05-11 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 29,676 -1.66 404.05 -202,025 11,990,588
2020-04-13 2020-04-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 30,176 -1.63 259.95 -129,975 7,844,251
2020-03-13 2020-03-11 4 DXCM DEXCOM INC
Common Stock
S - Sale -3,921 30,676 -11.33 265.43 -1,040,735 8,142,208
2020-03-13 2020-03-11 4 DXCM DEXCOM INC
Common Stock
S - Sale -107 34,597 -0.31 250.20 -26,771 8,656,169
2020-03-13 2020-03-11 4 DXCM DEXCOM INC
Common Stock
S - Sale -54 34,704 -0.16 246.06 -13,287 8,539,315
2020-03-10 2020-03-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 34,758 -1.42 261.00 -130,500 9,071,838
2020-03-10 2020-03-08 4 DXCM DEXCOM INC
Common Stock
A - Award 8,811 35,258 33.32 0.00 9 35
2020-02-11 2020-02-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 26,447 -1.86 240.59 -120,295 6,362,884
2020-01-10 2020-01-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -500 26,947 -1.82 235.01 -117,505 6,332,814
2019-12-10 2019-12-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 27,447 -1.44 226.51 -90,604 6,217,020
2019-12-10 2019-12-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -1,219 27,847 -4.19 225.55 -274,950 6,280,999
2019-12-10 2019-12-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -1,999 29,066 -6.43 224.36 -448,496 6,521,248
2019-12-10 2019-12-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -1,900 31,065 -5.76 223.31 -424,296 6,937,246
2019-09-11 2019-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -2,359 32,965 -6.68 150.11 -354,112 4,948,412
2019-09-11 2019-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -136 35,324 -0.38 145.48 -19,785 5,138,759
2019-06-11 2019-06-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 35,460 -1.12 127.03 -50,812 4,504,484
2019-05-13 2019-05-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 35,860 -1.10 116.92 -46,768 4,192,751
2019-04-12 2019-04-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 36,260 -1.09 115.05 -46,020 4,171,713
2019-03-13 2019-03-12 4 DXCM DEXCOM INC
Common Stock
S - Sale -659 36,660 -1.77 142.79 -94,100 5,234,762
2019-03-13 2019-03-12 4 DXCM DEXCOM INC
Common Stock
S - Sale -236 37,319 -0.63 142.79 -33,699 5,328,862
2019-03-13 2019-03-12 4 DXCM DEXCOM INC
Common Stock
S - Sale -2,201 37,555 -5.54 142.79 -314,286 5,362,561
2019-03-13 2019-03-12 4 DXCM DEXCOM INC
Common Stock
S - Sale -866 39,756 -2.13 142.79 -123,658 5,676,847
2019-03-11 2019-03-08 4 DXCM DEXCOM INC
Common Stock
A - Award 11,714 40,622 40.52 0.00 12 41
2019-03-11 2019-03-08 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 28,908 -1.36 141.56 -56,624 4,092,216
2019-02-12 2019-02-08 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 29,308 -1.35 142.76 -57,104 4,184,010
2019-02-12 2019-02-08 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 29,308 -1.35 142.76 -57,104 4,184,010
2019-01-14 2019-01-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 29,708 -1.33 138.75 -55,500 4,121,985
2018-12-12 2018-12-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 30,108 -1.31 121.90 -48,760 3,670,165
2018-11-13 2018-11-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 30,508 -1.29 148.11 -59,244 4,518,540
2018-10-12 2018-10-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 30,908 -1.28 122.20 -48,880 3,776,958
2018-09-12 2018-09-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -400 31,308 -1.26 143.35 -57,340 4,488,002
2018-09-12 2018-09-10 4 DXCM DEXCOM INC
Common Stock
S - Sale -1,021 31,708 -3.12 143.76 -146,774 4,558,190
2018-09-12 2018-09-10 4 DXCM DEXCOM INC
Common Stock
S - Sale -951 32,729 -2.82 143.76 -136,711 4,704,964
2018-08-14 2018-08-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -2,300 33,680 -6.39 125.18 -287,922 4,216,180
2018-08-14 2018-08-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -7,500 35,980 -17.25 124.36 -932,690 4,474,422
2018-08-14 2018-08-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -1,600 43,480 -3.55 123.48 -197,560 5,368,693
2018-08-14 2018-08-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -1,100 45,080 -2.38 121.94 -134,138 5,497,217
2018-03-14 2018-03-12 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -1,329 46,180 -2.80 60.73 -80,711 2,804,539
2018-03-14 2018-03-12 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -1,562 47,509 -3.18 60.73 -94,861 2,885,250
2018-03-14 2018-03-12 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -877 49,071 -1.76 60.73 -53,261 2,980,111
2018-03-12 2018-03-08 4 DXCM DEXCOM INC
Common Stock
A - Award 16,817 49,948 50.76 0.00 17 50
2017-09-13 2017-09-11 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -1,322 33,131 -3.84 71.81 -94,937 2,379,250
2017-03-10 2017-03-10 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -2,209 34,453 -6.03 77.55 -171,309 2,671,851
2017-03-10 2017-03-10 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -1,611 36,662 -4.21 77.55 -124,934 2,843,160
2017-03-10 2017-03-10 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -2,216 38,273 -5.47 77.55 -171,852 2,968,094
2017-03-10 2017-03-08 4 DXCM DEXCOM INC
Common Stock
A - Award 11,361 40,489 39.00 0.00 11 40
2016-12-20 3 DXCM DEXCOM INC
Common Stock
58,256
2016-12-20 3 DXCM DEXCOM INC
Common Stock
58,256
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)