DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionArkadios Wealth Advisors
Latest Disclosed Ownership12,950 shares
Latest Disclosed Value $ 813,272
Arkadios Wealth Advisors reports 302.17% increase in ownership of DXCM / DexCom, Inc.

On May 18, 2026 - Arkadios Wealth Advisors filed a 13F-HR form disclosing ownership of 12,950 shares of DexCom, Inc. (MX:DXCM) valued at $813,272 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,220 shares of DexCom, Inc.. This represents a change in shares of 302.17% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-18 2026-03-31 13F DEXCOM INC COM Stock 252131107 12,950 9,730 302.17 813 281.69 0.0086
2026-02-13 2025-12-31 13F DEXCOM INC COM Stock 252131107 3,220 -1,628 -33.58 214 -34.66 0.0041
2025-10-29 2025-09-30 13F DEXCOM INC COM Stock 252131107 4,848 2,363 95.09 326 50.93 0.0078
2025-08-04 2025-06-30 13F DEXCOM INC COM Stock 252131107 2,485 2,485 217 0.0064
2022-02-03 2021-12-31 13F DEXCOM INC COM Stock 252131107 0 -65 -100.00 0 0.0000
2021-10-19 2021-09-30 13F DEXCOM INC COM Stock 252131107 65 0 0.00 0 0.0050
2021-07-28 2021-06-30 13F DEXCOM INC COM Stock 252131107 65 24 58.54 0 0.0033
2021-04-26 2021-03-31 13F DEXCOM INC COM Stock 252131107 41 1 2.50 0 0.0023
2021-02-09 2020-12-31 13F DEXCOM INC COM Stock 252131107 40 -20 -33.33 0 -100.00 0.0029
2020-11-10 2020-09-30 13F DEXCOM INC COM Common Stock 252131107 60 -10 -14.29 24 -14.29 0.0122
2020-08-10 2020-06-30 13F DEXCOM INC COM Common Stock 252131107 70 0 0.00 29 55.56 0.0159
2020-05-14 2020-03-31 13F DEXCOM INC COM Common Stock 252131107 70 23 48.94 19 63.64 0.0120
2020-02-14 2019-12-31 13F DEXCOM INC COM Common Stock 252131107 47 47 12 0.0071
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.