iRhythm Technologies, Inc.
US ˙ NasdaqGS ˙ US4500561067

Introduction

This page provides a comprehensive analysis of the known insider trading history of Chad Patterson. 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 Chad Patterson has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:IRTC / iRhythm Technologies, Inc. Chief Commercial Officer 43,667
US:DXCM / DexCom, Inc. EVP Global Marketing 13,675
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Chad Patterson. 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 (%)
2024-05-31 IRTC Patterson Chad 280 74.9800 280 74.9800 20,994 361 146.3700 19,990 95.22

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 (%)
2025-08-04 IRTC Patterson Chad 2,707 164.3597 2,707 164.3597 444,922 2 156.0200 -22,575 -5.07
2025-03-03 IRTC Patterson Chad 2,756 108.7700 2,756 108.7700 299,770
2025-02-26 IRTC Patterson Chad 13,229 112.1300 13,229 112.1300 1,483,368
2024-08-02 IRTC Patterson Chad 3,012 74.6600 3,012 74.6600 224,876
2024-03-04 IRTC Patterson Chad 1,077 111.1400 1,077 111.1400 119,698
2023-08-02 IRTC Patterson Chad 1,896 100.4900 1,896 100.4900 190,529

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 Chad Patterson 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
2025-08-07 2025-08-06 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale X -2,555 43,667 -5.53 158.97 -406,168 6,941,743
2025-08-05 2025-08-04 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -2,707 46,222 -5.53 164.36 -444,922 7,597,034
2025-06-24 2025-06-23 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale X -936 48,929 -1.88 150.00 -140,400 7,339,350
2025-06-11 2025-06-10 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale X -363 49,865 -0.72 150.00 -54,450 7,479,750
2025-06-03 2025-05-30 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 298 50,228 0.60 71.46 21,295 3,589,293
2025-05-05 2025-05-02 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale X -1,300 49,930 -2.54 125.00 -162,500 6,241,250
2025-05-05 2025-05-02 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale X -7,210 51,230 -12.34 119.75 -863,398 6,134,792
2025-03-04 2025-03-03 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -2,756 58,440 -4.50 108.77 -299,770 6,356,519
2025-02-27 2025-02-26 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -13,229 61,196 -17.77 112.13 -1,483,368 6,861,907
2025-02-27 2025-02-26 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 12,118 74,425 19.45
2025-02-27 2025-02-25 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 25,546 62,307 69.49
2025-02-27 2025-02-25 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale X -461 36,761 -1.24 118.98 -54,850 4,373,824
2025-02-27 2023-11-30 4 IRTC iRhythm Technologies, Inc.
Common Stock
J - Other 89 37,222 0.24 72.49 6,452 2,698,223
2024-08-05 2024-08-02 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -3,012 37,133 -7.50 74.66 -224,876 2,772,350
2024-08-05 2024-05-31 4 IRTC iRhythm Technologies, Inc.
Common Stock
P - Purchase 280 40,145 0.70 74.98 20,994 3,010,072
2024-03-05 2024-03-04 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -1,077 39,865 -2.63 111.14 -119,698 4,430,596
2024-03-01 2024-02-28 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 10,742 40,942 35.57
2023-08-02 2023-08-02 4 IRTC iRhythm Technologies, Inc.
Common Stock
S - Sale -1,896 30,200 -5.91 100.49 -190,529 3,034,798
2023-03-01 2023-02-27 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 10,674 31,724 50.71
2022-11-21 2022-07-25 4/A IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 21,050 21,050
2022-07-27 2022-07-25 4 IRTC iRhythm Technologies, Inc.
Common Stock
A - Award 20,789 20,789
2022-05-10 2022-05-09 4 DXCM DEXCOM INC
Common Stock
S - Sale X -777 13,675 -5.38 342.77 -266,332 4,687,380
2022-04-13 2022-04-11 4 DXCM DEXCOM INC
Common Stock
S - Sale X -776 14,452 -5.10 498.75 -387,030 7,207,935
2022-03-14 2022-03-10 4 DXCM DEXCOM INC
Common Stock
S - Sale X -776 15,228 -4.85 401.27 -311,386 6,110,540
2022-03-10 2022-03-09 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -974 16,004 -5.74 406.06 -395,499 6,498,531
2022-03-10 2022-03-09 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -223 16,978 -1.30 406.06 -90,551 6,894,031
2022-03-10 2022-03-09 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -432 17,201 -2.45 406.06 -175,416 6,984,581
2022-03-10 2022-03-09 4 DXCM DEXCOM INC
Common Stock
D - Sale to Issuer -192 17,633 -1.08 406.06 -77,963 7,159,998
2022-03-10 2022-03-08 4 DXCM DEXCOM INC
Common Stock
A - Award 5,297 17,825 42.28 0.00 5 18
2022-03-02 2022-03-01 4 DXCM DEXCOM INC
Common Stock
S - Sale X -46 12,528 -0.37 413.97 -19,043 5,186,216
2021-12-17 2021-12-15 4 DXCM DEXCOM INC
Common Stock
A - Award 2,925 12,528 30.46 0.00 3 13
2021-10-15 2021-10-13 4 DXCM DEXCOM INC
Common Stock
S - Sale X -141 9,603 -1.45 545.54 -76,921 5,238,821
2021-09-15 2021-09-13 4 DXCM DEXCOM INC
Common Stock
S - Sale X -156 9,744 -1.58 541.47 -84,469 5,276,084
2021-09-13 2021-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -4 9,900 -0.04 542.02 -2,168 5,366,020
2021-09-13 2021-09-09 4 DXCM DEXCOM INC
Common Stock
S - Sale -287 9,904 -2.82 541.36 -155,370 5,361,629
2021-04-01 3 DXCM DEXCOM INC
Common Stock
10,177
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)