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Of the 18 tracked institutions holding DXCM, 10 have a 3-year clone track record — 8 of them beat the S&P. Average holder's clone alpha: +3.9pt. It's a gauge of who owns the name, not just how many.
Among the 18 tracked institutional investors we monitor, DXCM (DEXCOM INC) is held with a combined value of $9.53B across 142,234,485 shares. The largest holder is VANGUARD GROUP INC with a position worth $3.26B (0.05% of their portfolio). 8 funds increased their holdings. 10 funds reduced their position.
Total Institutional Value
$9.53B
Total Shares Held
142,234,485
Institutional Holders
18
% of Shares Outstanding
37.7%
of 377.36M shares · SEC 2026-07-23
Days to Cover
2.9-5.8%
16.53M shares short · FINRA 2026-08-14
Tracked 13F institutions hold 37.7% 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 2026-07-23), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
15
$8.44M
Total Transactions
15
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 27, 2026 | Sadie Stern | S | Sale | 2,565 | $226.67K |
| Aug 20, 2026 | KEVIN R SAYER | S | Sale | 97 | $8.87K |
| Aug 20, 2026 | KEVIN R SAYER | S | Sale | 7,351 | $667.33K |
| Aug 20, 2026 | KEVIN R SAYER | S | Sale | 19,308 | $1.73M |
| Aug 14, 2026 | Michael Jon Brown | S | Sale | 1,700 | $156.28K |
| Aug 12, 2026 | Bridgette P Heller | S | Sale | 1,012 | $89.35K |
| Aug 3, 2026 | MARK G FOLETTA | S | Sale | 2,000 | $170.64K |
| Jul 31, 2026 | MARK G FOLETTA | S | Sale | 2,000 | $160.00K |
| Jul 20, 2026 | KEVIN R SAYER | S | Sale | 26,756 | $2.04M |
| Jul 15, 2026 | Michael Jon Brown | S | Sale | 1,700 | $126.51K |
Showing 10 of 15 transactions
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $3.26B | 0.05% | -0.8% |
| 2 | BlackRock, Inc. | $2.58B | 0.04% | -1.8% |
| 3 | STATE STREET CORP | $1.24B | 0.04% | +2.5% |
| 4 | BAILLIE GIFFORD & CO | $996.89M | 0.90% | -5.1% |
| 5 | WELLINGTON MANAGEMENT GROUP LLP | $574.33M | 0.10% | -8.6% |
| 6 | AQR CAPITAL MANAGEMENT LLC | $218.06M | 0.08% | +49.0% |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $150.78M | 0.02% | +54.9% |
| 8 | FMR LLC | $127.51M | 0.01% | +13.2% |
| 9 | RENAISSANCE TECHNOLOGIES LLC | $109.83M | 0.15% | +3.0% |
| 10 | CITADEL ADVISORS LLC | $81.61M | 0.05% | -42.1% |
| 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, 18 institutional investors hold DXCM with a combined value of $9.53B.
Institutional investors hold $9.53B worth of DXCM stock across 18 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
$83.88
2026-09-09
YTD
+26.1%
77% of 52-week range
