- Corporate Officers - C
- Coleman Jon
Insider Trading History of Coleman Jon
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Coleman Jon since 2015.
This trader's CIK number is 1442689.
At the time of last reporting, Coleman Jon was the EVP, Chief Commercial Officer of Dexcom Inc. (stock ticker symbol DXCM).
Also see all insider trading activities at Dexcom Inc.
Note that in the past
Coleman Jon also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Masimo Corp (MASI) by Coleman Jon
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2021 | MASI | 0 | $0 | 0 | $0 | 2,000 | $0 |
| 2020 | MASI | 0 | $0 | 15,500 | $3,641,915 | 17,500 | $462,774 |
| 2019 | MASI | 0 | $0 | 12,000 | $1,530,000 | 14,000 | $317,880 |
| 2018 | MASI | 0 | $0 | 103,303 | $9,411,512 | 105,303 | $3,312,138 |
| 2017 | MASI | 0 | $0 | 93,000 | $8,742,499 | 99,697 | $3,624,521 |
| 2016 | MASI | 0 | $0 | 46,000 | $2,620,000 | 46,000 | $1,104,326 |
| 2015 | MASI | 0 | $0 | 20,000 | $843,750 | 20,000 | $403,800 |
Yearly summary of insider trading at Dexcom Inc (DXCM) by Coleman Jon
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2026 | DXCM | 0 | $0 | 9,823 | $722,628 | 0 | $0 |
Insider trading activities at 2 companies by Coleman Jon:
1. Masimo Corp (MASI)
2. Dexcom Inc (DXCM)
Table 1. Insider trading of Masimo Corp (MASI) by Coleman Jon
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2021-01-02 | MASI | Option Ex | 2,000 | .00 | 0 |
| 2020-12-28 | MASI | Option Ex | 8,250 | 31.01 | 255,832 |
| 2020-12-28 | MASI | Sale | 8,250 | 264.02 | 2,178,165 |
| 2020-07-06 | MASI | Sale | 1,250 | 235.00 | 293,750 |
| 2020-07-06 | MASI | Option Ex | 1,250 | 31.01 | 38,762 |
| 2020-04-15 | MASI | Sale | 4,000 | 197.50 | 790,000 |
| 2020-04-14 | MASI | Sale | 2,000 | 190.00 | 380,000 |
| 2020-04-15 | MASI | Option Ex | 4,000 | 28.03 | 112,120 |
| 2020-04-14 | MASI | Option Ex | 2,000 | 28.03 | 56,060 |
| 2020-01-02 | MASI | Option Ex | 2,000 | .00 | 0 |
| 2019-04-01 | MASI | Option Ex | 2,000 | 31.01 | 62,020 |
| 2019-04-01 | MASI | Sale | 2,000 | 140.00 | 280,000 |
| 2019-02-27 | MASI | Option Ex | 2,000 | 31.01 | 62,020 |
| 2019-02-25 | MASI | Sale | 2,000 | 130.00 | 260,000 |
| 2019-02-25 | MASI | Option Ex | 2,000 | 31.01 | 62,020 |
| 2019-02-27 | MASI | Sale | 2,000 | 135.00 | 270,000 |
| 2019-01-31 | MASI | Sale | 2,000 | 125.00 | 250,000 |
| 2019-01-31 | MASI | Option Ex | 2,000 | 21.97 | 43,940 |
| 2019-01-18 | MASI | Sale | 2,000 | 120.00 | 240,000 |
| 2019-01-18 | MASI | Option Ex | 2,000 | 21.97 | 43,940 |
| 2019-01-15 | MASI | Option Ex | 2,000 | 21.97 | 43,940 |
| 2019-01-15 | MASI | Sale | 2,000 | 115.00 | 230,000 |
| 2019-01-02 | MASI | Option Ex | 2,000 | .00 | 0 |
| 2018-05-03 | MASI | Sale | 50,000 | 93.75 | 4,687,500 |
| 2018-05-03 | MASI | Option Ex | 50,000 | 35.13 | 1,756,500 |
| 2018-04-23 | MASI | Option Ex | 24,000 | 34.42 | 826,199 |
| 2018-04-23 | MASI | Sale | 24,000 | 90.00 | 2,160,000 |
| 2018-03-29 | MASI | Option Ex | 29,303 | 24.89 | 729,439 |
| 2018-03-29 | MASI | Sale | 29,303 | 87.50 | 2,564,012 |
| 2018-02-27 | MASI | Option Ex | 2,000 | .00 | 0 |
| 2017-07-20 | MASI | Option Ex | 25,000 | 40.20 | 1,005,000 |
| 2017-07-20 | MASI | Sale | 25,000 | 97.50 | 2,437,500 |
| 2017-04-25 | MASI | Option Ex | 50,000 | 40.20 | 2,010,000 |
| 2017-04-25 | MASI | Sale | 50,000 | 100.00 | 5,000,000 |
| 2017-02-03 | MASI | Option Ex | 6,000 | 24.68 | 148,080 |
| 2017-02-03 | MASI | Sale | 6,000 | 75.00 | 450,000 |
| 2017-01-25 | MASI | Option Ex | 1,525 | 24.68 | 37,637 |
| 2017-01-27 | MASI | Sale | 4,275 | 72.50 | 309,937 |
| 2017-01-27 | MASI | Option Ex | 4,275 | 24.68 | 105,507 |
| 2017-01-25 | MASI | Sale | 1,525 | 72.50 | 110,562 |
| 2017-01-20 | MASI | Sale | 100 | 72.50 | 7,250 |
| 2017-01-19 | MASI | Sale | 100 | 72.50 | 7,250 |
| 2017-01-20 | MASI | Option Ex | 100 | 24.68 | 2,468 |
| 2017-01-19 | MASI | Option Ex | 100 | 24.68 | 2,468 |
| 2017-01-10 | MASI | Option Ex | 6,000 | 24.68 | 148,080 |
| 2017-01-10 | MASI | Sale | 6,000 | 70.00 | 420,000 |
| 2017-01-03 | MASI | Option Ex | 6,697 | 24.68 | 165,281 |
| 2016-12-21 | MASI | Sale | 4,000 | 67.50 | 270,000 |
| 2016-12-21 | MASI | Option Ex | 4,000 | 24.68 | 98,720 |
| 2016-11-07 | MASI | Option Ex | 6,000 | 20.19 | 121,140 |
| 2016-11-07 | MASI | Sale | 6,000 | 60.00 | 360,000 |
| 2016-09-07 | MASI | Sale | 5,700 | 60.00 | 342,000 |
| 2016-09-06 | MASI | Option Ex | 300 | 28.03 | 8,409 |
| 2016-09-07 | MASI | Option Ex | 5,700 | 28.03 | 159,771 |
| 2016-09-06 | MASI | Sale | 300 | 60.00 | 18,000 |
| 2016-08-04 | MASI | Sale | 22,000 | 57.00 | 1,254,000 |
| 2016-08-04 | MASI | Option Ex | 22,000 | 24.89 | 547,646 |
| 2016-06-01 | MASI | Option Ex | 4,000 | 21.97 | 87,880 |
| 2016-06-01 | MASI | Sale | 4,000 | 50.00 | 200,000 |
| 2016-04-27 | MASI | Option Ex | 4,000 | 20.19 | 80,760 |
| 2016-04-27 | MASI | Sale | 4,000 | 44.00 | 176,000 |
| 2015-12-24 | MASI | Option Ex | 10,000 | 20.19 | 201,900 |
| 2015-12-24 | MASI | Sale | 10,000 | 42.00 | 420,000 |
| 2015-11-06 | MASI | Option Ex | 10,000 | 20.19 | 201,900 |
| 2015-11-06 | MASI | Sale | 10,000 | 42.38 | 423,750 |
Table 2. Insider trading of Dexcom Inc (DXCM) by Coleman Jon
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2026-06-03 | DXCM | Sale | 4,912 | 73.00 | 358,576 |
| 2026-06-04 | DXCM | Sale | 4,911 | 74.13 | 364,052 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Coleman Jon
(EVP, Chief Commercial Officer of Dexcom Inc at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.