DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionStandard Life Aberdeen plc
Latest Disclosed Ownership477,298 shares
Latest Disclosed Value $ 29,974,314
Standard Life Aberdeen plc reports 10.01% decrease in ownership of DXCM / DexCom, Inc.

On April 29, 2026 - Standard Life Aberdeen plc filed a 13F-HR form disclosing ownership of 477,298 shares of DexCom, Inc. (MX:DXCM) valued at $29,974,314 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 530,363 shares of DexCom, Inc.. This represents a change in shares of -10.01% 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)
2026-04-29 2026-03-31 13F DEXCOM COM 252131107 477,298 -53,065 -10.01 29,974 -14.85 0.0263
2026-01-16 2025-12-31 13F DEXCOM COM 252131107 530,363 43,990 9.04 35,200 8.34 0.0545
2025-11-07 2025-09-30 13F DEXCOM COM 252131107 486,373 180,943 59.24 32,490 22.73 0.0514
2025-07-24 2025-06-30 13F DEXCOM COM 252131107 305,430 -55,294 -15.33 26,472 8.89 0.0450
2025-05-13 2025-03-31 13F DEXCOM COM 252131107 360,724 13,173 3.79 24,311 -10.20 0.0474
2025-01-24 2024-12-31 13F DEXCOM COM 252131107 347,551 -37,095 -9.64 27,071 4.75 0.0508
2024-10-25 2024-09-30 13F DEXCOM COM 252131107 384,646 85,174 28.44 25,842 -23.89 0.0474
2024-08-09 2024-06-30 13F DEXCOM COM 252131107 299,472 -94,153 -23.92 33,954 -37.81 0.0651
2024-05-09 2024-03-31 13F DEXCOM COM 252131107 393,625 13,090 3.44 54,596 15.62 0.1070
2024-01-31 2023-12-31 13F DEXCOM COM 252131107 380,535 66,348 21.12 47,221 61.09 0.1024
2023-11-07 2023-09-30 13F DEXCOM COM 252131107 314,187 14,401 4.80 29,314 -23.91 0.0748
2024-06-20 2023-06-30 13F/A-1 DEXCOM COM 252131107 299,786 26,646 9.76 38,525 21.40 0.0896
2023-08-04 2023-06-30 13F DEXCOM COM 252131107 299,786 26,646 38,525 0.0896
2024-06-20 2023-03-31 13F/A-1 DEXCOM COM 252131107 273,140 20,615 8.16 31,733 10.97 0.0794
2023-04-28 2023-03-31 13F DEXCOM COM 252131107 273,140 20,615 31,733 0.0794
2024-06-20 2022-12-31 13F/A-1 DEXCOM COM 252131107 252,525 18,018 7.68 28,596 51.40 0.0778
2023-02-10 2022-12-31 13F DEXCOM COM 252131107 252,525 18,018 28,596 0.0778
2022-11-10 2022-09-30 13F DEXCOM COM 252131107 234,507 95,001 68.10 18,887 80.08 0.0562
2022-08-05 2022-06-30 13F DEXCOM COM 252131107 139,506 107,968 342.34 10,488 -35.66 0.0330
2022-05-04 2022-03-31 13F DEXCOM COM 252131107 31,538 -1,204 -3.68 16,300 -7.28 0.0417
2022-02-10 2021-12-31 13F/A-1 DEXCOM COM 252131107 32,742 -1,632 -4.75 17,580 -6.22 0.0386
2022-02-08 2021-12-31 13F DEXCOM COM 252131107 32,742 -1,632 17,580 0.0127
2021-11-15 2021-09-30 13F DEXCOM COM 252131107 34,374 1,508 4.59 18,746 33.58 0.0422
2021-08-10 2021-06-30 13F DEXCOM COM 252131107 32,866 -824 -2.45 14,034 15.81 0.0307
2021-05-06 2021-03-31 13F DEXCOM COM 252131107 33,690 1,914 6.02 12,118 3.12 0.0275
2021-02-10 2020-12-31 13F DEXCOM COM 252131107 31,776 2,600 8.91 11,751 -2.29 0.0286
2020-10-21 2020-09-30 13F DEXCOM COM 252131107 29,176 -3,869 -11.71 12,027 -10.22 0.0321
2020-08-10 2020-06-30 13F DEXCOM COM 252131107 33,045 20,615 165.85 13,396 299.76 0.0363
2020-05-13 2020-03-31 13F DEXCOM COM 252131107 12,430 237 1.94 3,351 25.65 0.0106
2020-02-18 2019-12-31 13F DEXCOM COM 252131107 12,193 125 1.04 2,667 48.08 0.0064
2019-11-13 2019-09-30 13F DEXCOM COM 252131107 12,068 533 4.62 1,801 4.16 0.0045
2019-08-13 2019-06-30 13F DEXCOM COM 252131107 11,535 228 2.02 1,729 28.45 0.0038
2019-05-14 2019-03-31 13F DEXCOM COM 252131107 11,307 6,654 143.00 1,346 145.17 0.0029
2019-02-12 2018-12-31 13F DEXCOM COM 252131107 4,653 4,653 549 0.0013
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.