DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionMayTech Global Investments, LLC
Latest Disclosed Ownership299,552 shares
Latest Disclosed Value $ 18,812,137
MayTech Global Investments, LLC reports 1.83% decrease in ownership of DXCM / DexCom, Inc.

On May 14, 2026 - MayTech Global Investments, LLC filed a 13F-HR form disclosing ownership of 299,552 shares of DexCom, Inc. (MX:DXCM) valued at $18,812,137 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 305,149 shares of DexCom, Inc.. This represents a change in shares of -1.83% 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.

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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)
2026-05-14 2026-03-31 13F DEXCOM COM 252131107 299,552 -5,597 -1.83 18,812 -7.11 2.2946
2026-02-13 2025-12-31 13F DEXCOM COM 252131107 305,149 -2,598 -0.84 20,253 -2.18 2.0505
2025-11-12 2025-09-30 13F DEXCOM COM 252131107 307,747 -2,884 -0.93 20,705 -22.40 2.1607
2025-08-15 2025-06-30 13F DEXCOM COM 252131107 310,631 20,818 7.18 26,681 34.81 2.7636
2025-05-15 2025-03-31 13F DEXCOM COM 252131107 289,813 9,047 3.22 19,791 -9.36 2.5689
2025-02-14 2024-12-31 13F DEXCOM COM 252131107 280,766 21,509 8.30 21,835 25.63 2.5723
2024-11-13 2024-09-30 13F DEXCOM COM 252131107 259,257 90,498 53.63 17,381 -9.16 2.2951
2024-08-08 2024-06-30 13F DEXCOM COM 252131107 168,759 3,511 2.12 19,134 -16.52 2.8653
2024-05-14 2024-03-31 13F DEXCOM COM 252131107 165,248 2,396 1.47 22,920 13.42 3.7511
2024-02-14 2023-12-31 13F DEXCOM COM 252131107 162,852 1,151 0.71 20,208 33.95 4.0877
2023-12-22 2023-09-30 13F/A-1 DEXCOM COM 252131107 161,701 28,125 21.06 15,087 -12.11 3.5117
2023-11-13 2023-09-30 13F DEXCOM COM 252131107 161,701 28,125 15,087 3.5251
2023-08-10 2023-06-30 13F DEXCOM COM 252131107 133,576 17,194 14.77 17,166 26.95 3.4012
2023-05-11 2023-03-31 13F DEXCOM COM 252131107 116,382 -4,067 -3.38 13,521 -0.87 3.7166
2023-02-14 2022-12-31 13F DEXCOM COM 252131107 120,449 10,608 9.66 13,640 54.17 4.5228
2022-11-10 2022-09-30 13F DEXCOM COM 252131107 109,841 -2,843 -2.52 8,847 5.36 3.2301
2022-08-12 2022-06-30 13F DEXCOM COM 252131107 112,684 84,902 305.60 8,397 -40.92 2.6587
2022-05-13 2022-03-31 13F DEXCOM COM 252131107 27,782 -11,954 -30.08 14,213 -33.38 3.2681
2022-02-23 2021-12-31 13F/A-1 DEXCOM COM 252131107 39,736 296 0.75 21,336 -1.08 4.2949
2022-02-10 2021-12-31 13F DEXCOM COM 252131107 39,736 296 20,941 1.5066
2021-11-12 2021-09-30 13F DEXCOM COM 252131107 39,440 345 0.88 21,569 29.21 4.4679
2021-08-13 2021-06-30 13F DEXCOM COM 252131107 39,095 504 1.31 16,693 20.36 3.4919
2021-05-17 2021-03-31 13F DEXCOM COM 252131107 38,591 356 0.93 13,869 -1.89 3.3320
2021-02-10 2020-12-31 13F DEXCOM COM 252131107 38,235 1,042 2.80 14,136 -7.80 3.3571
2020-11-09 2020-09-30 13F DEXCOM COM 252131107 37,193 740 2.03 15,332 3.75 4.0962
2020-08-12 2020-06-30 13F DEXCOM COM 252131107 36,453 -5,551 -13.22 14,778 30.66 4.6426
2020-05-12 2020-03-31 13F DEXCOM COM 252131107 42,004 -4,860 -10.37 11,310 10.33 5.1672
2020-02-12 2019-12-31 13F DEXCOM COM 252131107 46,864 3 0.01 10,251 46.57 4.4569
2019-11-14 2019-09-30 13F DEXCOM COM 252131107 46,861 1,496 3.30 6,994 2.90 3.4487
2019-08-12 2019-06-30 13F DEXCOM COM 252131107 45,365 934 2.10 6,797 28.44 3.4115
2019-05-09 2019-03-31 13F DEXCOM COM 252131107 44,431 315 0.71 5,292 0.13 2.7933
2019-02-12 2018-12-31 13F DEXCOM COM 252131107 44,116 2,164 5.16 5,285 -11.93 3.3941
2018-11-13 2018-09-30 13F DEXCOM COM 252131107 41,952 41,952 6,001 2.9179
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.