DXCM — DEXCOM INC
Health Care
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying DXCM?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 5 tracked investors who changed their DXCM position last quarter, 5 bought and 0 sold (100% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 53/100 in a Overheat regime). 0 congressional purchases, 2 sales disclosed in the last 6 months.
- +5 tracked investors added or increased positions last quarter (Steve Cohen, Paul Tudor Jones, George Soros, …)
- +6 tracked investors reported holding DXCM at their latest filing
- −Congressional disclosures lean toward selling (2 sales vs 0 purchases, 6 months)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.
About DEXCOM INC (DXCM)
DEXCOM INC (DXCM) appears in the most recent 13F filings of 6 tracked institutional investors. DEXCOM INC is classified in the Health Care sector. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $623M. Across recent filings, tracked investors recorded 10 new positions, 13 increased, 10 reduced, and 4 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in DXCM
How many top investors track DXCM
Several tracked investors have exposure.
DXCM Ownership Composition
How DEXCOM INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant50.6%
- Macro36.1%
- Value & Distressed13.3%
Tracked investors currently reporting DXCM
1 tracked investor has since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares2.8MValue$185.9M% Portfolio0.02%
- Izzy EnglanderJun 30, 2026Millennium ManagementShares471.6KValue$31.8M% Portfolio0.01%
- Paul Tudor JonesJun 30, 2026Tudor Investment CorpShares69.2MValue$64.7M% Portfolio0.09%
- George SorosJun 30, 2026Soros Fund ManagementShares68MValue$63.5M% Portfolio0.78%
- Howard MarksJun 30, 2026Oaktree Capital ManagementShares61.1MValue$57.1M% Portfolio0.79%
- Ray DalioJun 30, 2026Bridgewater AssociatesShares400.9KValue$27M% Portfolio0.11%
Previously held DXCM
These investors reported DXCM in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Steve Cohen | Point72 Asset Management | 335.9K | $21.1M | Mar 31, 2026 |
Recent activity
- New$58.2MMay 15, 2026
- Increased$63.5M(7.94%)Aug 14, 2026
- New$1.8MAug 14, 2024
- Sold$0(-100.00%)Nov 14, 2024
- New$9.4MMay 15, 2025
- Increased$15.9M(53.64%)Aug 13, 2025
- Reduced$12.9M(-19.54%)Nov 13, 2025
- Increased$25.8M(115.96%)Feb 17, 2026
- Increased$37.3M(44.39%)May 20, 2026
- Increased$57.1M(51.27%)Aug 14, 2026
- Reduced$53.8M(-27.97%)Feb 14, 2024
- Reduced$51.4M(-14.38%)May 14, 2024
- Reduced$39.4M(-6.35%)Aug 14, 2024
- Reduced$21.4M(-7.97%)Nov 13, 2024
- Reduced$7.6M(-69.36%)Feb 13, 2025
- Reduced$4.9M(-27.20%)May 14, 2025
- Increased$22.2M(256.00%)Aug 13, 2025
- Reduced$8.1M(-52.53%)Nov 13, 2025
- Sold$0(-100.00%)Feb 13, 2026
- New$8.8MMay 15, 2026
- Increased$27M(187.02%)Aug 14, 2026
- New$6.7MNov 14, 2024
- Increased$125.3M(1511.06%)Feb 14, 2025
- Reduced$34.1M(-69.02%)Jul 21, 2025
- Reduced$10.3M(-76.38%)Aug 14, 2025
- Increased$156.7M(1875.31%)Nov 14, 2025
- Sold$0(-100.00%)Feb 17, 2026
- New$19.6MAug 14, 2026
- Increased$2.8M(248.61%)Aug 14, 2024
- Sold$0(-100.00%)Nov 14, 2024
- $583.3KFeb 14, 2025
- Increased$2.9M(466.67%)May 15, 2025
- Increased$11M(195.76%)Aug 14, 2025
- Increased$63.1M(54911.93%)Dec 9, 2025
- $64.7MAug 14, 2026
- New$56.1MNov 13, 2023
- $998.6KMay 15, 2024
Frequently asked questions
- How many institutional investors hold DXCM?
- 6 tracked institutional investors disclosed a position in DXCM (DEXCOM INC) in their most recent 13F filing.
- Who is the largest institutional holder of DXCM?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in DXCM, valued at $623M.
- Did institutional ownership of DXCM increase or decrease?
- Across recent 13F filings, tracked investors recorded 10 new positions, 13 increased, 10 reduced, and 4 fully exited DXCM.
- What sector is DXCM in?
- DEXCOM INC is classified in the Health Care GICS sector.
- Where does this DXCM ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.