Current roles
From Section 16 filings (Forms 3, 4 and 5) in the last 13 months.
Past roles
“Last filing” is the latest Form 3/4/5 for that company, an upper bound on the end date.
None on record since 2016.
Sits alongside
People who currently share a board or management team with this person.
- Albert Frederick Osterloh IVDXCM
- Bridgette P. HellerDXCM
- Euan A. AshleyDXCM
- Glenn S. BoehnleinDXCM
- Jereme M. SylvainDXCM
- Jon ColemanDXCM
- Kevin R. SayerDXCM
- Kyle MaladyDXCM
- Mark G. FolettaDXCM
- Michael Jon BrownDXCM
- Nicholas AugustinosDXCM
- Renee D. GalaDXCM
- Richard Alexander CollinsDXCM
- Rimma DriscollDXCM
- Sadie SternDXCM
- Steven R. AltmanDXCM
Open-market trades
Purchases and sales reported on Form 4 at S&P 500 companies.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 10, 2025 | DXCM | Buy | 2,500 | $55.43 | $139K |
| Nov 10, 2025 | DXCM | Buy | 15,700 | $54.98 | $863K |
| Mar 12, 2025 | DXCM | Sale | 14,076 | $70.38 | $991K |
| Jan 29, 2025 | DXCM | Sale | 2,634 | $86.91 | $229K |
| Dec 16, 2024 | DXCM | Sale | 744 | $76.87 | $57K |
| Sep 9, 2024 | DXCM | Sale | 746 | $69.15 | $52K |
| Jun 10, 2024 | DXCM | Sale | 745 | $115.05 | $86K |
| Mar 12, 2024 | DXCM | Sale | 14,639 | $134.41 | $2.0M |
| Jan 16, 2024 | DXCM | Sale | 3,978 | $123.63 | $492K |
| Apr 20, 2023 | DXCM | Sale | 30,764 | $125.00 | $3.8M |
| Mar 6, 2023 | DXCM | Sale | 7,719 | $115.13 | $889K |
| Mar 6, 2023 | DXCM | Sale | 10,425 | $114.45 | $1.2M |
| Sep 9, 2021 | DXCM | Sale | 1,248 | $541.36 | $676K |
| Sep 9, 2021 | DXCM | Sale | 15 | $542.03 | $8K |
| Jul 30, 2021 | DXCM | Sale | 12,087 | $476.70 | $5.8M |
| Jun 9, 2021 | DXCM | Sale | 22,755 | $395.00 | $9.0M |
| Mar 10, 2021 | DXCM | Sale | 5,353 | $362.92 | $1.9M |
| Sep 9, 2020 | DXCM | Sale | 2,577 | $398.30 | $1.0M |
| Sep 9, 2020 | DXCM | Sale | 1,283 | $398.30 | $511K |
| Jun 11, 2020 | DXCM | Sale | 100 | $380.06 | $38K |
| Jun 11, 2020 | DXCM | Sale | 1,982 | $379.42 | $752K |
| Jun 11, 2020 | DXCM | Sale | 7,466 | $377.98 | $2.8M |
| Jun 11, 2020 | DXCM | Sale | 3,481 | $376.78 | $1.3M |
| Jun 11, 2020 | DXCM | Sale | 1,800 | $375.68 | $676K |
| Jun 11, 2020 | DXCM | Sale | 2,600 | $374.30 | $973K |
| Jun 11, 2020 | DXCM | Sale | 1,700 | $372.97 | $634K |
| Mar 11, 2020 | DXCM | Sale | 6,633 | $265.43 | $1.8M |
| Mar 11, 2020 | DXCM | Sale | 84 | $250.20 | $21K |
| Mar 11, 2020 | DXCM | Sale | 192 | $245.67 | $47K |
| Sep 9, 2019 | DXCM | Sale | 257 | $145.42 | $37K |
| Sep 9, 2019 | DXCM | Sale | 4,455 | $150.11 | $669K |
| Jun 13, 2019 | DXCM | Sale | 4,499 | $145.19 | $653K |
| Jun 13, 2019 | DXCM | Sale | 600 | $146.29 | $88K |
| Mar 12, 2019 | DXCM | Sale | 1,676 | $142.79 | $239K |
| Mar 12, 2019 | DXCM | Sale | 1,878 | $142.79 | $268K |
| Mar 12, 2019 | DXCM | Sale | 5,001 | $142.79 | $714K |
| Sep 28, 2018 | DXCM | Sale | 9,451 | $142.96 | $1.4M |
| Sep 28, 2018 | DXCM | Sale | 13,418 | $143.80 | $1.9M |
| Sep 28, 2018 | DXCM | Sale | 24,731 | $144.42 | $3.6M |
| Sep 10, 2018 | DXCM | Sale | 2,678 | $143.76 | $385K |
| Sep 10, 2018 | DXCM | Sale | 1,936 | $143.76 | $278K |
| Aug 24, 2018 | DXCM | Sale | 10,000 | $138.32 | $1.4M |
| Aug 24, 2018 | DXCM | Sale | 10,577 | $138.32 | $1.5M |
| May 9, 2018 | DXCM | Sale | 203 | $84.77 | $17K |
| May 9, 2018 | DXCM | Sale | 8,542 | $84.77 | $724K |
| May 8, 2018 | DXCM | Sale | 1,923 | $84.95 | $163K |
| May 8, 2018 | DXCM | Sale | 2,500 | $85.15 | $213K |
| Mar 14, 2017 | DXCM | Sale | 3,050 | $77.32 | $236K |
| Mar 13, 2017 | DXCM | Sale | 2,732 | $77.78 | $212K |
| Mar 13, 2017 | DXCM | Sale | 5,194 | $78.07 | $405K |
| Mar 9, 2017 | DXCM | Sale | 3,012 | $77.24 | $233K |
| Mar 9, 2017 | DXCM | Sale | 7,329 | $77.56 | $568K |
SEC reporting-owner ID (CIK) 1700255 · all filings on EDGAR