DexCom, Inc.
DE ˙ DB ˙ US2521311074
62,20 € ↓ -0,20 (-0,32%)
2026-06-04
DEL PRIS
SecurityDE:DC4 / DexCom, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership36,086 shares
Latest Disclosed Value $ 2,266
Natixis Advisors, L.p. reports 28.60% increase in ownership of DC4 / DexCom, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 36,086 shares of DexCom, Inc. (DE:DC4) valued at $1,955,500 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 28,061 shares of DexCom, Inc.. This represents a change in shares of 28.60% during the quarter. The current value of the position is $2,244,549 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)
2026-05-13 2026-03-31 13F DEXCOM COM 252131107 36,086 8,025 28.60 2 100.00 0.0032
2026-02-10 2025-12-31 13F DEXCOM COM 252131107 28,061 -81,203 -74.32 2 -85.71 0.0026
2025-11-13 2025-09-30 13F DEXCO INC COM 252131107 109,264 -117,827 -51.89 7 -63.16 0.0107
2025-08-13 2025-06-30 13F DEXCOM COM 252131107 227,091 76,147 50.45 20 90.00 0.0315
2025-05-08 2025-03-31 13F DEXCOM COM 252131107 150,944 -42,588 -22.01 10 -33.33 0.0190
2025-02-10 2024-12-31 13F DEXCOM COM 252131107 193,532 158,124 446.58 15 650.00 0.0281
2024-11-06 2024-09-30 13F DEXCOM COM 252131107 35,408 -1,056,986 -96.76 2 -98.37 0.0046
2024-08-01 2024-06-30 13F DEXCOM COM 252131107 1,092,394 -63,606 -5.50 124 -23.12 0.2693
2024-04-25 2024-03-31 13F DEXCOM COM 252131107 1,156,000 26,430 2.34 160 14.29 0.3686
2024-02-06 2023-12-31 13F DEXCOM COM 252131107 1,129,570 661,584 141.37 140 225.58 0.3690
2023-11-13 2023-09-30 13F DEXCOM COM 252131107 467,986 413,407 757.45 44 514.29 0.1335
2023-08-15 2023-06-30 13F DEXCOM COM 252131107 54,579 2,295 4.39 7 16.67 0.0217
2023-05-11 2023-03-31 13F DEXCOM COM 252131107 52,284 11,683 28.78 6 50.00 0.0209
2023-01-27 2022-12-31 13F DEXCOM COM 252131107 40,601 6,736 19.89 5 -99.85 0.0174
2022-11-14 2022-09-30 13F DEXCOM COM 252131107 33,865 -3,054 -8.27 2,727 -0.91 0.0115
2022-08-12 2022-06-30 13F DEXCOM COM 252131107 36,919 36,919 2,752 0.0121
2016-02-12 2015-12-31 13F DEXCOM COM 252131107 0 0 0 0.0000
2015-11-12 2015-09-30 13F DEXCOM COM 252131107 0 0 0 0.0000
2014-11-03 2014-09-30 13F DEXCOM COM 252131107 0 -6,877 -100.00 0 -100.00
2014-08-13 2014-06-30 13F DEXCOM COM 252131107 6,877 1,560 29.34 273 24.09 0.0039
2014-05-13 2014-03-31 13F DEXCOM COM 252131107 5,317 5,317 220 0.0034
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.