DexCom, Inc.
US ˙ NasdaqGS ˙ US2521311074

SecurityDXCM / DexCom, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership75,907 shares
Latest Disclosed Value $ 4,766,990
Fifth Third Bancorp reports 205.95% increase in ownership of DXCM / DexCom, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 75,907 shares of DexCom, Inc. (US:DXCM) valued at $4,766,960 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 24,810 shares of DexCom, Inc.. This represents a change in shares of 205.95% during the quarter. The current value of the position is $5,523,752 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)
2026-05-01 2026-03-31 13F DEXCOM COM 252131107 75,907 51,097 205.95 4,767 189.55 0.0087
2026-02-02 2025-12-31 13F DEXCOM COM 252131107 24,810 -112 -0.45 1,647 -1.85 0.0052
2025-11-07 2025-09-30 13F DEXCOM COM 252131107 24,922 646 2.66 1,677 -20.86 0.0054
2025-07-15 2025-06-30 13F DEXCOM COM 252131107 24,276 -7,380 -23.31 2,119 -1.94 0.0073
2025-04-15 2025-03-31 13F DEXCOM COM 252131107 31,656 309 0.99 2,162 -11.33 0.0082
2025-01-21 2024-12-31 13F DEXCOM COM 252131107 31,347 5,553 21.53 2,438 40.95 0.0088
2024-10-17 2024-09-30 13F DEXCOM COM 252131107 25,794 -1,547 -5.66 1,729 -44.21 0.0063
2024-07-22 2024-06-30 13F DEXCOM COM 252131107 27,341 -3,264 -10.66 3,100 -26.98 0.0118
2024-04-23 2024-03-31 13F DEXCOM COM 252131107 30,605 5,176 20.35 4,245 34.52 0.0166
2024-01-19 2023-12-31 13F DEXCOM COM 252131107 25,429 2,894 12.84 3,155 50.10 0.0134
2023-10-31 2023-09-30 13F DEXCOM COM 252131107 22,535 -701 -3.02 2,103 -29.60 0.0098
2023-07-26 2023-06-30 13F DEXCOM COM 252131107 23,236 7,002 43.13 2,986 58.32 0.0132
2023-04-24 2023-03-31 13F DEXCOM COM 252131107 16,234 -334 -2.02 1,886 0.53 0.0088
2023-01-25 2022-12-31 13F DEXCOM COM 252131107 16,568 1,250 8.16 1,876 52.03 0.0090
2022-10-25 2022-09-30 13F DEXCOM COM 252131107 15,318 2,053 15.48 1,234 24.77 0.0064
2022-08-04 2022-06-30 13F DEXCOM COM 252131107 13,265 9,723 274.51 989 -45.42 0.0048
2022-04-19 2022-03-31 13F DEXCOM COM 252131107 3,542 -1,108 -23.83 1,812 -27.43 0.0074
2022-02-01 2021-12-31 13F DEXCOM COM 252131107 4,650 1,851 66.13 2,497 63.10 0.0097
2021-10-15 2021-09-30 13F DEXCOM COM 252131107 2,799 391 16.24 1,531 48.93 0.0067
2021-08-06 2021-06-30 13F DEXCOM COM 252131107 2,408 260 12.10 1,028 33.16 0.0045
2021-05-07 2021-03-31 13F DEXCOM COM 252131107 2,148 661 44.45 772 40.36 0.0036
2021-02-16 2020-12-31 13F DEXCOM COM 252131107 1,487 44 3.05 550 -7.56 0.0027
2020-11-09 2020-09-30 13F DEXCOM COM 252131107 1,443 65 4.72 595 6.44 0.0033
2020-08-05 2020-06-30 13F DEXCOM COM 252131107 1,378 97 7.57 559 62.03 0.0034
2020-05-05 2020-03-31 13F DEXCOM COM 252131107 1,281 279 27.84 345 57.53 0.0025
2020-02-14 2019-12-31 13F DEXCOM COM 252131107 1,002 24 2.45 219 50.00 0.0012
2019-11-14 2019-09-30 13F DEXCOM COM 252131107 978 140 16.71 146 15.87 0.0009
2019-08-07 2019-06-30 13F DEXCOM COM 252131107 838 205 32.39 126 68.00 0.0008
2019-05-14 2019-03-31 13F DEXCOM COM 252131107 633 633 -24.46 75 -40.48 0.0005
2017-11-14 2017-09-30 13F DEXCOM COM 252131107 0 -258 -100.00 0 -100.00
2017-08-11 2017-06-30 13F DEXCOM COM 252131107 258 29 12.66 19 0.00 0.0001
2017-05-12 2017-03-31 13F DEXCOM COM 252131107 229 -156 -40.52 19 -17.39 0.0001
2017-02-13 2016-12-31 13F/A-1 DEXCOM COM 252131107 385 -180 -31.86 23 -54.00 0.0002
2017-02-09 2016-12-31 13F DEXCOM COM 252131107 565 0 50 0.0004
2016-11-10 2016-09-30 13F DEXCOM COM 252131107 565 429 315.44 50 354.55 0.0004
2016-08-11 2016-06-30 13F DEXCOM COM 252131107 136 136 -75.93 11 -78.00 0.0001
2016-02-16 2015-12-31 13F DEXCOM COM 252131107 0 -214 -100.00 0 -100.00
2015-11-13 2015-09-30 13F DEXCOM COM 252131107 214 214 0.00 18 0.0002
2014-08-14 2014-06-30 13F DEXCOM COM 252131107 0 -445 -100.00 0 -100.00
2014-05-15 2014-03-31 13F DEXCOM COM 252131107 445 -706 -61.34 18 -56.10 0.0002
2014-02-14 2013-12-31 13F DEXCOM COM 252131107 1,151 -2,162 -65.26 41 -55.91 0.0004
2013-11-14 2013-09-30 13F DEXCOM COM 252131107 3,313 3,313 93 0.0010
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.