DXCMDexCom, Inc.
Healthcare · Medical DevicesNasdaqStockMkt cap $32.1B
Disclosed trades
26
0 in 30d · 0 in 90d
Politicians
9
Last trade May 7, 2026
Buys
10
$387.5K at range midpoints
Sells
16
$969.5K at range midpoints
Closing price · 365 days
Sep 24, 2025 – Sep 23, 2026
Monthly buys vs sells · 24 months
Counts of disclosed transactions
- Buys
- Sells (incl. partial)
Politicians who traded it
5 hold it now Estimated
| Politician | Seat | Trades | Buys | Sells | Bought (mid) | Sold (mid) | Last trade | Est. position Estimated |
|---|---|---|---|---|---|---|---|---|
| DJosh Gottheimer | House · NJ-05 | 5 | 0 | 5 | $0 | $40K | Sep 12, 2023 | — |
| RMichael T. McCaul | House · TX-10 | 5 | 3 | 2 | $115.5K | $16K | May 7, 2026 | $60.5K |
| RJefferson Shreve | House · IN-06 | 3 | 1 | 2 | $32.5K | $65K | May 12, 2025 | — |
| RRobert P. Bresnahan, Jr. | House · PA-08 | 3 | 2 | 1 | $16K | $8K | May 15, 2025 | $8.2K |
| DThomas R. Suozzi | House · NY-03 | 3 | 2 | 1 | $40.5K | $32.5K | Jun 3, 2021 | $29.2K |
| DTina Smith | Senate · MN | 3 | 0 | 3 | $0 | $725K | May 7, 2026 | — |
| RKevin Hern | House · OK-01 | 2 | 1 | 1 | $175K | $75K | Dec 31, 2024 | $59.3K |
| RJohn Boozman | Senate · AR | 1 | 1 | 0 | $8K | $0 | Jan 26, 2026 | $9.6K |
| RPeter Meijer | House · MI-03 | 1 | 0 | 1 | $0 | $8K | Feb 16, 2021 | — |
Recent trades
| Politician | Ticker | Asset | Type | Owner | Amount | Traded | Filed | Source |
|---|---|---|---|---|---|---|---|---|
| RMichael T. McCaul | DXCM | DEXCOM INC | Sell | Spouse | $1,001 - $15,000 | May 7, 2026 | Jun 10, 202634d | FilingOCR |
| DTina Smith | DXCM | DexCom, Inc. - Common Stock | Sell | Spouse | $100,001 - $250,000 | May 7, 2026 | May 10, 20263d | Filing |
| DTina Smith | DXCM | DexCom, Inc. - Common Stock | Partial | Spouse | $100,001 - $250,000 | Apr 29, 2026 | May 10, 202611d | Filing |
| RMichael T. McCaul | DXCM | DEXCOM INC | Sell | Spouse | $1,001 - $15,000 | Feb 4, 2026 | Mar 10, 202634d | FilingOCR |
| RJohn Boozman | DXCM | Dexcom Inc | Buy | Joint | $1,001 - $15,000 | Jan 26, 2026 | Feb 15, 202620d | Filing |
| RMichael T. McCaul | DXCM | DEXCOM INC | BuyReview | Spouse | $1,001 - $15,000 | — | Oct 10, 2025 | FilingOCR |
| RMichael T. McCaul | DXCM | DEXCOM INC | BuyReview | Unknown | $15,001 - $50,000 | — | Sep 11, 2025 | FilingOCR |
| RJefferson Shreve | DXCM | DexCom, Inc. - Common Stock (DXCM) | Sell | Self | $15,001 - $50,000 | May 12, 2025 | Jun 22, 202541d | Filing |
| RJefferson Shreve | DXCM | DexCom, Inc. - Common Stock (DXCM) | Buy | Self | $15,001 - $50,000 | May 8, 2025 | Jun 22, 202545d | Filing |
| RRobert P. Bresnahan, Jr. | DXCM | DexCom, Inc. - Common Stock (DXCM) | Buy | Self | $1,001 - $15,000 | May 15, 2025 | Jun 9, 202525d | Filing |
| RMichael T. McCaul | DXCM | DEXCOM INC | BuyReview | Spouse | $50,001 - $100,000 | May 5, 2025 | May 12, 20257d | FilingOCR |
| RJefferson Shreve | DXCM | DexCom, Inc. - Common Stock (DXCM) | Sell | Self | $15,001 - $50,000 | Apr 7, 2025 | May 8, 202531d | Filing |
| RRobert P. Bresnahan, Jr. | DXCM | DexCom, Inc. - Common Stock (DXCM) | Sell | Self | $1,001 - $15,000 | Apr 8, 2025 | Apr 28, 202520d | Filing |
| RRobert P. Bresnahan, Jr. | DXCM | DexCom, Inc. - Common Stock (DXCM) | Buy | Self | $1,001 - $15,000 | Feb 25, 2025 | Mar 27, 202530d | Filing |
| RKevin Hern | DXCM | DexCom, Inc. - Common Stock (DXCM) | Sell | Joint | $50,001 - $100,000 | Dec 31, 2024 | Jan 15, 202515d | Filing |
| DJosh Gottheimer | DXCM | DexCom, Inc. (DXCM) | Sell | Joint | $1,001 - $15,000 | Sep 12, 2023 | Oct 15, 202333d | Filing |
| DJosh Gottheimer | DXCM | DexCom, Inc. (DXCM) | Partial | Joint | $1,001 - $15,000 | Aug 21, 2023 | Sep 16, 202326d | Filing |
| DJosh Gottheimer | DXCM | DexCom, Inc. (DXCM) | Partial | Joint | $1,001 - $15,000 | Sep 28, 2022 | Oct 16, 202218d | Filing |
| DThomas R. Suozzi | DXCM | DexCom, Inc. (DXCM) | Sell | Self | $15,001 - $50,000 | Jun 3, 2021 | Sep 23, 2021112d | Filing |
| DThomas R. Suozzi | DXCM | DexCom, Inc. (DXCM) | Buy | Self | $1,001 - $15,000 | Jan 10, 2020 | Sep 23, 2021622d | Filing |
| DThomas R. Suozzi | DXCM | DexCom, Inc. (DXCM) | Buy | Self | $15,001 - $50,000 | Jan 9, 2020 | Sep 23, 2021623d | Filing |
| RKevin Hern | DXCM | DexCom, Inc. (DXCM) | Buy | Joint | $100,001 - $250,000 | Jul 1, 2021 | Sep 15, 202176d | Filing |
| RPeter Meijer | DXCM | dexCom, Inc. (dXCM) | Sell | Self | $1,001 - $15,000 | Feb 16, 2021 | Mar 16, 202128d | Filing |
| DJosh Gottheimer | DXCM | dexCom, Inc. (dXCM) | Partial | Joint | $1,001 - $15,000 | Aug 13, 2020 | Sep 20, 202038d | Filing |
| DJosh Gottheimer | DXCM | dexCom, Inc. (dXCM) | Partial | Joint | $1,001 - $15,000 | May 11, 2020 | Jun 10, 202030d | Filing |
| DTina Smith | DXCM | DexCom, Inc. | Partial | Spouse | $250,001 - $500,000 | Mar 17, 2020 | Apr 16, 202030d | Filing |
Insider activity Filed
Insiders
22
Surgical & Medical Instruments & Apparatus
Open-market buys · 90d
0
$0 bought
Open-market sells · 90d
15
$8.4M sold
Net · 90d
-$8.4M
-$11.4M net over 12 months · last Sep 15, 2026
| Date | Insider | Kind | Security | Shares | Price | Value | Post-holdings | D/I | 10b5-1 | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026filed Sep 16, 2026 | Nicholas Augustinos | Sale | Common Stock | −6,539 | $84.04 | $549,538 | 29,293 | I | 10b5-1 | 4 |
| Sep 15, 2026filed Sep 16, 2026 | Michael Jon BrownEVP Chief Legal Compliance Off | Sale | Common Stock | −1,700 | $84.04 | $142,868 | 99,885 | D | 10b5-1 | 4 |
| Sep 14, 2026filed Sep 16, 2026 | Nicholas Augustinos | Sale | Common Stock | −1,550 | $84.02 | $130,231 | 35,832 | I | 10b5-1 | 4 |
| Sep 10, 2026filed Sep 10, 2026 | Glenn S Boehnlein | Award | Common Stock | 5,841 | $0.00 | $0 | 5,841 | D | — | 4 |
| Sep 10, 2026filed Sep 14, 2026 | Jereme M SylvainEVP, Chief Financal Officer | Sale | Common Stock | −3,638 | $83.27 | $302,936 | 146,828 | D | 10b5-1 | 4 |
| Aug 27, 2026filed Aug 28, 2026 | Sadie SternEVP Chief People & Culture Off | Sale | Common Stock | −2,565 | $88.37 | $226,669 | 126,043 | D | 10b5-1 | 4 |
| Aug 22, 2026filed Aug 25, 2026 | Jacob Steven LeachPresident, CEO, and Director | Withholding | Common Stock | −1,451 | $92.34 | $133,985 | 418,908 | D | — | 4 |
| Aug 22, 2026filed Aug 25, 2026 | Jereme M SylvainEVP, Chief Financal Officer | Withholding | Common Stock | −1,451 | $92.34 | $133,985 | 150,390 | D | — | 4 |
| Aug 22, 2026filed Aug 25, 2026 | Michael Jon BrownEVP Chief Legal Compliance Off | Withholding | Common Stock | −1,451 | $92.34 | $133,985 | 101,502 | D | — | 4 |
| Aug 22, 2026filed Aug 25, 2026 | Sadie SternEVP Chief People & Culture Off | Withholding | Common Stock | −1,451 | $92.34 | $133,985 | 128,608 | D | — | 4 |
Shares, prices and post-transaction holdings are exactly as reported on SEC Form 4. Net figures count open-market buys minus open-market sales only (awards, exercises, withholding and gifts are excluded).
Unusual activity Estimated
- 52Committee overlapMay 7, 2026
Sen. Tina Smith sold $100,001–$250,000 of DXCM while sitting on Senate Finance
Details
- Committee
- Senate Committee on Finance
- Leadership seat
- No
- Sector
- Healthcare
- Disclosed range
- $100,001 - $250,000
- 50Insider overlapMay 7, 2026
Rep. Michael T. McCaul sold DXCM 14 days before its Chair sold $1.9M
Details
- Politician
- Michael T. McCaul
- Ticker
- DXCM
- Asset
- DEXCOM INC
- Tx type
- sell
- Tx date
- May 7, 2026
- Filing date
- Jun 10, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 34
- Is whale
- No
- Insider trade
- {"insider":{"slug":"kevin-r-sayer","name":"Kevin R Sayer","title":"Executive Chair","short_title":"Chair"},"company":"DEXCOM INC","ticker":"DXCM","tx_kind":"open_market_sale","tx_date":"2026-05-21","shares":26759,"price":72,"value":1926648,"is_10b5_1":true}
- Days between
- -14
- Opposite side
- No
- 50Insider overlapMay 7, 2026
Sen. Tina Smith sold DXCM 14 days before its Chair sold $1.9M
Details
- Politician
- Tina Smith
- Ticker
- DXCM
- Asset
- DexCom, Inc. - Common Stock
- Tx type
- sell
- Tx date
- May 7, 2026
- Filing date
- May 10, 2026
- Amount low
- $100K
- Amount high
- $250K
- Amount mid
- $175K
- Disclosed range
- $100,001 - $250,000
- Reporting lag days
- 3
- Is whale
- No
- Insider trade
- {"insider":{"slug":"kevin-r-sayer","name":"Kevin R Sayer","title":"Executive Chair","short_title":"Chair"},"company":"DEXCOM INC","ticker":"DXCM","tx_kind":"open_market_sale","tx_date":"2026-05-21","shares":26759,"price":72,"value":1926648,"is_10b5_1":true}
- Days between
- -14
- Opposite side
- No
- 52Committee overlapApr 29, 2026
Sen. Tina Smith partially sold $100,001–$250,000 of DXCM while sitting on Senate Finance
Details
- Committee
- Senate Committee on Finance
- Leadership seat
- No
- Sector
- Healthcare
- Disclosed range
- $100,001 - $250,000
- 50Insider overlapApr 29, 2026
Sen. Tina Smith partially sold DXCM 22 days before its Chair sold $1.9M
Details
- Politician
- Tina Smith
- Ticker
- DXCM
- Asset
- DexCom, Inc. - Common Stock
- Tx type
- partial_sale
- Tx date
- Apr 29, 2026
- Filing date
- May 10, 2026
- Amount low
- $100K
- Amount high
- $250K
- Amount mid
- $175K
- Disclosed range
- $100,001 - $250,000
- Reporting lag days
- 11
- Is whale
- No
- Insider trade
- {"insider":{"slug":"kevin-r-sayer","name":"Kevin R Sayer","title":"Executive Chair","short_title":"Chair"},"company":"DEXCOM INC","ticker":"DXCM","tx_kind":"open_market_sale","tx_date":"2026-05-21","shares":26759,"price":72,"value":1926648,"is_10b5_1":true}
- Days between
- -22
- Opposite side
- No
- 59Exec buyNov 10, 2025
DXCM CEO Jacob Steven Leach bought $863K on the open market
Details
- Insider
- Jacob Steven Leach
- Company
- DEXCOM INC
- Ticker
- DXCM
- Tx kind
- open_market_buy
- Tx date
- Nov 10, 2025
- Shares
- 15,700
- Price
- $55
- Value
- $863.1K
- Is 10b5 1
- No
- 47Exec buyNov 10, 2025
DXCM CEO Jacob Steven Leach bought $139K on the open market
Details
- Insider
- Jacob Steven Leach
- Company
- DEXCOM INC
- Ticker
- DXCM
- Tx kind
- open_market_buy
- Tx date
- Nov 10, 2025
- Shares
- 2,500
- Price
- $55
- Value
- $138.6K
- Is 10b5 1
- No
- 30Cluster buyMay 5, 2025
3 members bought DXCM within 14 days
Details
- Ticker
- DXCM
- Side
- buy
- Window days
- 14
- Window start
- May 5, 2025
- Window end
- May 15, 2025
- N politicians
- 3
- N trades
- 3
- Total mid
- $115.5K
- Has whale
- No
- Members
- Michael T. McCaul, Jefferson Shreve, Robert P. Bresnahan, Jr.
- Tx ids
- 125,564, 92,997, 93,307
- 28First-time tickerMay 5, 2025
First-ever DXCM trade for Rep. Michael T. McCaul: $50K–$100K buy
Details
- Politician
- Michael T. McCaul
- Ticker
- DXCM
- Asset
- DEXCOM INC
- Tx type
- buy
- Tx date
- May 5, 2025
- Filing date
- May 12, 2025
- Amount low
- $50,001
- Amount high
- $100K
- Amount mid
- $75,001
- Disclosed range
- $50,001 - $100,000
- Reporting lag days
- 7
- Is whale
- No
- 50Insider overlapApr 8, 2025
Rep. Robert P. Bresnahan, Jr. sold DXCM 27 days after its Chair sold $2.3M
Details
- Politician
- Robert P. Bresnahan, Jr.
- Ticker
- DXCM
- Asset
- DexCom, Inc. - Common Stock (DXCM)
- Tx type
- sell
- Tx date
- Apr 8, 2025
- Filing date
- Apr 28, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 20
- Is whale
- No
- Insider trade
- {"insider":{"slug":"kevin-r-sayer","name":"Kevin R Sayer","title":"Executive Chair","short_title":"Chair"},"company":"DEXCOM INC","ticker":"DXCM","tx_kind":"open_market_sale","tx_date":"2025-03-12","shares":32498,"price":70.3801,"value":2287212.49,"is_10b5_1":false}
- Days between
- 27
- Opposite side
- No