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Of the 17 tracked institutions holding DXCM, 10 have a 3-year clone track record — 8 of them beat the S&P. Average holder's clone alpha: +4.2pt. It's a gauge of who owns the name, not just how many.
Among the 17 tracked institutional investors we monitor, DXCM (DEXCOM INC) is held with a combined value of $9.22B across 144,003,811 shares. The largest holder is VANGUARD GROUP INC with a position worth $3.26B (0.05% of their portfolio). 7 funds increased their holdings. 10 funds reduced their position.
Total Institutional Value
$9.22B
Total Shares Held
144,003,811
Institutional Holders
17
% of Shares Outstanding
37.3%
of 385.87M shares · SEC 2026-04-23
Days to Cover
4.4+3.0%
18.65M shares short · FINRA 2026-07-15
Tracked 13F institutions hold 37.3% of DXCM's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-04-23), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
7
$5.23M
Total Transactions
7
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Jul 20, 2026 | KEVIN R SAYER | S | Sale | 26,756 | $2.04M |
| Jul 15, 2026 | Michael Jon Brown | S | Sale | 1,700 | $126.51K |
| Jul 6, 2026 | KEVIN R SAYER | S | Sale | 26,756 | $1.93M |
| Jun 15, 2026 | MARK G FOLETTA | S | Sale | 3,801 | $281.65K |
| Jun 15, 2026 | Michael Jon Brown | S | Sale | 1,700 | $128.44K |
| Jun 4, 2026 | Jon Coleman | S | Sale | 4,911 | $364.05K |
| Jun 3, 2026 | Jon Coleman | S | Sale | 4,912 | $358.58K |
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $3.26B | 0.05% | -0.8% |
| 2 | BlackRock, Inc. | $2.45B | 0.04% | -2.2% |
| 3 | STATE STREET CORP | $1.13B | 0.04% | -0.9% |
| 4 | BAILLIE GIFFORD & CO | $979.65M | 1.00% | +0.3% |
| 5 | WELLINGTON MANAGEMENT GROUP LLP | $585.69M | 0.11% | +203.4% |
| 6 | AQR CAPITAL MANAGEMENT LLC | $136.50M | 0.06% | -30.0% |
| 7 | CITADEL ADVISORS LLC | $131.37M | 0.09% | +2307.2% |
| 8 | MILLENNIUM MANAGEMENT LLC | $111.36M | 0.05% | -7.8% |
| 9 | FMR LLC | $105.07M | 0.01% | +28.8% |
| 10 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $104.65M | 0.16% | +5.0% |
| Member | Type | Date |
|---|---|---|
| Tina Smith | Sell | May 7, 2026 |
| Tina Smith | Sell | Apr 29, 2026 |
| John Boozman | Buy | Jan 26, 2026 |
| Rob Bresnahan | Buy |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of DXCM with a position worth $3.26B, representing 0.05% of their portfolio. In total, 17 institutional investors hold DXCM with a combined value of $9.22B.
Institutional investors hold $9.22B worth of DXCM stock across 17 positions. The largest institutional holder is VANGUARD GROUP INC with $3.26B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For DXCM, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their DXCM positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| May 15, 2025 |
| Jefferson Shreve | Sell | May 12, 2025 |
| Jefferson Shreve | Buy | May 8, 2025 |
| Rob Bresnahan | Sell | Apr 8, 2025 |
| Jefferson Shreve | Sell | Apr 7, 2025 |
Showing 8 of 11. STOCK Act disclosures lag up to 45 days.
Last Close
$71.54
2026-07-24
YTD
+7.5%
48% of 52-week range
