DexCom, Inc.
US ˙ NasdaqGS ˙ US2521311074

SecurityDXCM / DexCom, Inc.
InstitutionKBC Group NV
Latest Disclosed Ownership294,497 shares
Latest Disclosed Value $ 18,495
KBC Group NV reports 1.29% decrease in ownership of DXCM / DexCom, Inc.

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 294,497 shares of DexCom, Inc. (US:DXCM) valued at $18,494,412 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 298,339 shares of DexCom, Inc.. This represents a change in shares of -1.29% during the quarter. The current value of the position is $21,430,547 USD.

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)
2026-05-07 2026-03-31 13F DEXCOM COM 252131107 294,497 -3,842 -1.29 18 -5.26 0.0239
2026-01-26 2025-12-31 13F DEXCOM COM 252131107 298,339 -133,500 -30.91 20 -34.48 0.0452
2026-01-20 2025-09-30 13F DEXCOM COM 252131107 431,839 23,490 5.75 29 -17.14 0.0697
2025-08-08 2025-06-30 13F DEXCOM COM 252131107 408,349 831 0.20 36 29.63 0.0963
2025-04-25 2025-03-31 13F DEXCOM COM 252131107 407,518 -10,170 -2.43 28 -15.62 0.0864
2025-01-22 2024-12-31 13F DEXCOM COM 252131107 417,688 -79,068 -15.92 32 -3.03 0.0895
2024-11-06 2024-09-30 13F DEXCOM COM 252131107 496,756 148,569 42.67 33 -15.38 0.1006
2024-07-17 2024-06-30 13F DEXCOM COM 252131107 348,187 939 0.27 39 -18.75 0.1193
2024-05-08 2024-03-31 13F DEXCOM COM 252131107 347,248 28,229 8.85 48 23.08 0.1530
2024-02-13 2023-12-31 13F DEXCOM COM 252131107 319,019 -44,418 -12.22 40 18.18 0.1403
2024-02-15 2023-09-30 13F/A-1 DEXCOM COM 252131107 363,437 -107,637 -22.85 34 -45.00 0.1384
2023-11-22 2023-09-30 13F DEXCOM COM 252131107 470,487 0 60 0.2518
2024-02-15 2023-06-30 13F/A-1 DEXCOM COM 252131107 471,074 11,170 2.43 61 13.21 0.2490
2023-07-28 2023-06-30 13F DEXCOM COM 252131107 470,487 11,809 60 0.2518
2024-02-14 2023-03-31 13F/A-1 DEXCOM COM 252131107 459,904 63,247 15.95 53 20.45 0.2268
2023-05-04 2023-03-31 13F DEXCOM COM 252131107 458,678 29,779 53 0.2510
2024-02-14 2022-12-31 13F/A-1 DEXCOM COM 252131107 396,657 -32,829 -7.64 45 29.41 0.2179
2023-02-13 2022-12-31 13F DEXCOM COM 252131107 428,899 -587 35 0.0002
2024-02-15 2022-09-30 13F/A-1 DEXCOM COM 252131107 429,486 35,088 8.90 35 17.24 0.1798
2022-11-08 2022-09-30 13F DEXCOM COM 252131107 428,899 34,501 34,544 0.1806
2024-02-14 2022-06-30 13F/A-1 DEXCOM COM 252131107 394,398 312,820 383.46 29 -29.27 0.1466
2022-07-26 2022-06-30 13F DEXCOM COM 252131107 393,650 312,072 29,339 0.1476
2024-02-14 2022-03-31 13F/A-1 DEXCOM COM 252131107 81,578 -78,671 -49.09 42 -52.33 0.1650
2022-05-06 2022-03-31 13F DEXCOM COM 252131107 81,578 -78,671 41,735 0.1541
2024-02-14 2021-12-31 13F/A-1 DEXCOM COM 252131107 160,249 47,236 41.80 86 -99.86 0.2838
2022-02-03 2021-12-31 13F DEXCOM COM 252131107 160,249 47,236 86,046 0.2695
2021-11-10 2021-09-30 13F DEXCOM COM 252131107 113,013 5,139 4.76 61,802 34.17 0.2266
2022-02-15 2021-06-30 13F/A-1 DEXCOM COM 252131107 107,874 2,144 2.03 46,062 21.22 0.1660
2021-08-11 2021-06-30 13F DEXCOM COM 252131107 107,874 2,144 46,062 0.1660
2022-02-14 2021-03-31 13F/A-1 DEXCOM COM 252131107 105,730 17,986 20.50 37,998 -88.29 0.1539
2021-04-26 2021-03-31 13F DEXCOM COM 252131107 105,730 17,986 37,998 0.1539
2022-02-14 2020-12-31 13F/A-1 DEXCOM COM 252131107 87,744 10,297 13.30 324,407 916.12 0.1526
2021-02-10 2020-12-31 13F DEXCOM COM 252131107 87,744 10,297 32,441 0.1493
2022-02-14 2020-09-30 13F/A-1 DEXCOM COM 252131107 77,447 11,162 16.84 31,926 18.81 0.1881
2020-10-28 2020-09-30 13F DEXCOM COM 252131107 77,447 11,162 31,926 0.1889
2022-02-14 2020-06-30 13F/A-1 DEXCOM COM 252131107 66,285 22,277 50.62 26,872 126.77 0.1776
2020-08-10 2020-06-30 13F DEXCOM COM 252131107 66,285 22,277 26,872 0.1798
2020-05-04 2020-03-31 13F DEXCOM COM 252131107 44,008 -4,239 -8.79 11,850 12.28 0.0992
2020-02-11 2019-12-31 13F DEXCOM COM 252131107 48,247 2,504 5.47 10,554 54.59 0.0667
2019-11-07 2019-09-30 13F DEXCOM COM 252131107 45,743 -1,465 -3.10 6,827 -3.49 0.0501
2019-08-08 2019-06-30 13F/A-1 DEXCOM COM 252131107 47,208 2,433 5.43 7,074 32.65 0.0548
2019-07-30 2019-06-30 13F DEXCOM COM 252131107 47,208 2,433 7,074
2019-08-07 2019-03-31 13F/A-1 DEXCOM COM 252131107 44,775 -32,814 -42.29 5,333 -42.63 0.0439
2019-05-10 2019-03-31 13F DEXCOM COM 252131107 44,775 -32,814 5,333
2019-01-31 2018-12-31 13F DEXCOM COM 252131107 77,589 17,946 30.09 9,295 8.96 0.1035
2018-11-14 2018-09-30 13F DEXCOM COM 252131107 59,643 1,262 2.16 8,531 53.85 0.0645
2018-08-03 2018-06-30 13F DEXCOM COM 252131107 58,381 57,459 6,232.00 5,545 8,054.41 0.0483
2018-08-03 2018-03-31 13F/A-1 DEXCOM COM 252131107 922 0 0.00 68 28.30 0.0006
2018-05-09 2018-03-31 13F DEXCOM COM 252131107 922 0 68
2018-08-03 2017-12-31 13F/A-1 DEXCOM COM 252131107 922 -7,891 -89.54 53 -87.70 0.0005
2018-02-07 2017-12-31 13F DEXCOM COM 252131107 922 -7,891 53
2017-11-13 2017-09-30 13F DEXCOM COM 252131107 8,813 -576 -6.13 431 -37.26 0.0039
2017-08-04 2017-06-30 13F DEXCOM COM 252131107 9,389 1,081 13.01 687 -2.41 0.0066
2017-05-10 2017-03-31 13F DEXCOM COM 252131107 8,308 2,177 35.51 704 92.35 0.0064
2017-02-16 2016-12-31 13F DEXCOM COM 252131107 6,131 6,131 366 0.0036
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.