DexCom, Inc.
US ˙ NasdaqGS ˙ US2521311074

SecurityDXCM / DexCom, Inc.
InstitutionONEQ - Fidelity Nasdaq Composite Index Tracking Stock
Latest Disclosed Ownership95,821 shares
Latest Disclosed Value $ 8,221,441
ONEQ - Fidelity Nasdaq Composite Index Tracking Stock reports 0.40% decrease in ownership of DXCM / DexCom, Inc.

On July 24, 2025 - ONEQ - Fidelity Nasdaq Composite Index Tracking Stock filed a NPORT-P form disclosing ownership of 95,821 shares of DexCom, Inc. (US:DXCM) valued at $8,221,442 USD as of May 31, 2025. The entity filed a previous NPORT-P on April 25, 2025 disclosing 96,203 shares of DexCom, Inc.. This represents a change in shares of -0.40% during the quarter. The current value of the position is $6,981,518 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)
2025-07-24 2025-05-31 NP DEXCOM EC US2521311074 95,821 -382 -0.40 8,221 -3.29 0.1087
2025-04-25 2025-02-28 NP DEXCOM EC US2521311074 96,203 2,592 2.77 8,501 16.45 0.1145
2025-01-27 2024-11-30 NP DEXCOM EC US2521311074 93,611 672 0.72 7,301 13.28 0.0990
2024-10-29 2024-08-31 NP DEXCOM EC US2521311074 92,939 4,489 5.08 6,444 -38.66 0.0955
2024-07-26 2024-05-31 NP DEXCOM EC US2521311074 88,450 1,150 1.32 10,505 4.58 0.1665
2024-04-24 2024-02-29 NP DEXCOM EC US2521311074 87,300 1,426 1.66 10,046 1.26 0.1677
2024-01-24 2023-11-30 NP DEXCOM EC US2521311074 85,874 138 0.16 9,920 14.59 0.1903
2023-10-27 2023-08-31 NP DEXCOM EC US2521311074 85,736 1,380 1.64 8,658 -12.48 0.1691
2023-07-26 2023-05-31 NP DEXCOM EC US2521311074 84,356 276 0.33 9,892 5.98 0.2134
2023-04-27 2023-02-28 NP DEXCOM EC US2521311074 84,080 2,070 2.52 9,334 -2.13 0.2283
2023-01-26 2022-11-30 NP DEXCOM EC US2521311074 82,010 2,162 2.71 9,536 45.28 0.2384
2022-10-26 2022-08-31 NP DEXCOM EC US2521311074 79,848 60,655 316.03 6,564 14.80 0.1642
2022-07-29 2022-05-31 NP DEXCOM EC US2521311074 19,193 572 3.07 5,718 -25.81 0.1457
2022-04-28 2022-02-28 NP DEXCOM EC US2521311074 18,621 -822 -4.23 7,707 -29.54 0.1786
2022-01-25 2021-11-30 NP DEXCOM EC US2521311074 19,443 516 2.73 10,938 9.16 0.2286
2021-10-26 2021-08-31 NP DEXCOM EC US2521311074 18,927 396 2.14 10,020 46.38 0.2195
2021-07-22 2021-05-31 NP DEXCOM EC US2521311074 18,531 72 0.39 6,845 -6.77 0.1701
2021-04-23 2021-02-28 NP DEXCOM EC US2521311074 18,459 2,987 19.31 7,343 48.44 0.1912
2021-01-20 2020-11-30 NP DEXCOM EC US2521311074 15,472 -1,529 -8.99 4,946 -31.61 0.1478
2020-10-16 2020-08-31 NP DEXCOM EC US2521311074 17,001 422 2.55 7,232 15.31 0.2233
2020-07-20 2020-05-31 NP DEXCOM EC US2521311074 16,579 1,121 7.25 6,272 47.02 0.2448
2020-04-24 2020-02-29 NP DEXCOM EC US2521311074 15,458 797 5.44 4,266 28.03 0.1904
2020-01-16 2019-11-30 NP DEXCOM EC US2521311074 14,661 14,661 3,333 0.1513
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.