DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership2,609,354 shares
Latest Disclosed Value $ 163,867,432
Legal & General Group Plc reports 0.16% increase in ownership of DXCM / DexCom, Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 2,609,354 shares of DexCom, Inc. (MX:DXCM) valued at $163,867,432 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 2,605,282 shares of DexCom, Inc.. This represents a change in shares of 0.16% 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)
2026-05-08 2026-03-31 13F DEXCOM COM 252131107 2,609,354 4,072 0.16 163,867 -5.23 0.0379
2026-02-09 2025-12-31 13F DEXCOM COM 252131107 2,605,282 -30,418 -1.15 172,913 -2.51 0.0383
2025-11-13 2025-09-30 13F DEXCOM COM 252131107 2,635,700 117,493 4.67 177,356 -19.32 0.0398
2025-08-12 2025-06-30 13F DEXCOM COM 252131107 2,518,207 -23,015 -0.91 219,814 26.66 0.0546
2025-05-15 2025-03-31 13F DEXCOM COM 252131107 2,541,222 -23,929 -0.93 173,540 -13.01 0.0473
2025-02-13 2024-12-31 13F DEXCOM COM 252131107 2,565,151 129,944 5.34 199,492 22.20 0.0528
2025-02-28 2024-09-30 13F/A-2 DEXCOM COM 252131107 2,435,207 67,515 2.85 163,256 -39.19 0.0429
2024-11-14 2024-09-30 13F/A-1 DEXCOM COM 252131107 3,011,353 18,304 201,881 0.0421
2024-11-14 2024-09-30 13F DEXCOM COM 252131107 3,011,353 18,304 201,881 0.0212
2025-05-29 2024-06-30 13F/A-1 DEXCOM COM 252131107 2,367,692 -49,501 -2.05 268,449 -19.93 0.0758
2024-08-14 2024-06-30 13F DEXCOM COM 252131107 2,993,049 49,076 339,352 0.0760
2025-05-29 2024-03-31 13F/A-2 DEXCOM COM 252131107 2,417,193 -32,231 -1.32 335,265 10.30 0.0965
2024-07-01 2024-03-31 13F/A-1 DEXCOM COM 252131107 2,943,973 -36,852 408,329 0.0953
2024-05-14 2024-03-31 13F DEXCOM COM 252131107 2,909,230 -71,595 403,511 0.0485
2025-05-29 2023-12-31 13F/A-1 DEXCOM COM 252131107 2,449,424 -48,666 -1.95 303,950 30.41 0.0944
2024-02-15 2023-12-31 13F DEXCOM COM 252131107 2,980,825 482,735 369,891 0.0949
2023-11-14 2023-09-30 13F DEXCOM COM 252131107 2,498,090 -105,186 -4.04 233,072 -30.33 0.0813
2023-08-14 2023-06-30 13F DEXCOM COM 252131107 2,603,276 89,358 3.55 334,547 14.55 0.1088
2023-05-15 2023-03-31 13F DEXCOM COM 252131107 2,513,918 58,752 2.39 292,067 5.05 0.1045
2023-02-14 2022-12-31 13F DEXCOM COM 252131107 2,455,166 -128,671 -4.98 278,023 33.60 0.1067
2022-11-14 2022-09-30 13F DEXCOM COM 252131107 2,583,837 -81,043 -3.04 208,103 4.78 0.0813
2022-08-22 2022-06-30 13F DEXCOM COM 252131107 2,664,880 2,027,129 317.86 198,614 -39.13 0.0703
2022-05-16 2022-03-31 13F DEXCOM COM 252131107 637,751 50,151 8.53 326,274 3.41 0.0992
2022-02-14 2021-12-31 13F DEXCOM COM 252131107 587,600 -39,711 -6.33 315,513 -8.03 0.0954
2021-11-15 2021-09-30 13F DEXCOM COM 252131107 627,311 18,541 3.05 343,050 31.97 0.1115
2021-08-12 2021-06-30 13F DEXCOM COM 252131107 608,770 50,331 9.01 259,945 29.52 0.0869
2021-05-17 2021-03-31 13F DEXCOM COM 252131107 558,439 1,371 0.25 200,697 -2.55 0.0748
2021-02-12 2020-12-31 13F DEXCOM COM 252131107 557,068 -11,753 -2.07 205,959 -12.17 0.0807
2020-11-13 2020-09-30 13F DEXCOM COM 252131107 568,821 21,134 3.86 234,485 5.61 0.1048
2020-08-14 2020-06-30 13F DEXCOM COM 252131107 547,687 35,295 6.89 222,033 61.08 0.1073
2020-05-14 2020-03-31 13F DEXCOM COM 252131107 512,392 15,126 3.04 137,838 26.72 0.0806
2020-02-13 2019-12-31 13F DEXCOM COM 252131107 497,266 18,220 3.80 108,772 51.54 0.0518
2019-08-14 2019-06-30 13F DEXCOM COM 252131107 479,046 -6,251 -1.29 71,780 24.20 0.0386
2019-05-15 2019-03-31 13F DEXCOM COM 252131107 485,297 329,168 210.83 57,794 209.24 0.0330
2019-02-15 2018-12-31 13F DEXCOM COM 252131107 156,129 95,637 158.10 18,689 115.98 0.0145
2018-11-20 2018-09-30 13F DEXCOM COM 252131107 60,492 18,075 42.61 8,653 114.77 0.0062
2018-08-10 2018-06-30 13F DEXCOM COM 252131107 42,417 -2,565 -5.70 4,029 20.77 0.0031
2018-05-17 2018-03-31 13F DEXCOM COM 252131107 44,982 -657 -1.44 3,336 27.38 0.0025
2018-02-13 2017-12-31 13F DEXCOM COM 252131107 45,639 -50,118 -52.34 2,619 -44.10 0.0019
2017-11-09 2017-09-30 13F DEXCOM COM 252131107 95,757 13,166 15.94 4,685 -22.46 0.0035
2017-08-03 2017-06-30 13F DEXCOM COM 252131107 82,591 6,537 8.60 6,042 -6.24 0.0049
2017-05-12 2017-03-31 13F DEXCOM COM 252131107 76,054 26,579 53.72 6,444 118.14 0.0055
2017-02-13 2016-12-31 13F DEXCOM COM 252131107 49,475 42,984 662.21 2,954 419.16 0.0028
2016-10-12 2016-09-30 13F DEXCOM COM 252131107 6,491 1,079 19.94 569 32.33 0.0006
2016-08-16 2016-06-30 13F DEXCOM COM 252131107 5,412 241 4.66 430 22.51 0.0005
2016-05-16 2016-03-31 13F DEXCOM COM 252131107 5,171 1,008 24.21 351 2.93 0.0004
2016-02-16 2015-12-31 13F DEXCOM COM 252131107 4,163 1,008 31.95 341 25.83 0.0004
2015-11-13 2015-09-30 13F DEXCOM COM 252131107 3,155 384 13.86 271 22.07 0.0003
2015-07-31 2015-06-30 13F DEXCOM COM 252131107 2,771 -9,963 -78.24 222 -71.83 0.0003
2015-05-14 2015-03-31 13F DEXCOM COM 252131107 12,734 2,058 19.28 788 32.88 0.0009
2015-02-20 2014-12-31 13F/A-1 DEXCOM COM 252131107 10,676 -214 -1.97 593 35.08 0.0007
2015-02-17 2014-12-31 13F DEXCOM COM 252131107 10,676 -214 593 0.0007
2014-11-14 2014-09-30 13F DEXCOM COM 252131107 10,890 10,890 439 0.0005
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.