DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionCIBC Asset Management Inc
Latest Disclosed Ownership221,358 shares
Latest Disclosed Value $ 13,901,282
CIBC Asset Management Inc reports 3.75% increase in ownership of DXCM / DexCom, Inc.

On May 12, 2026 - CIBC Asset Management Inc filed a 13F-HR form disclosing ownership of 221,358 shares of DexCom, Inc. (MX:DXCM) valued at $13,901,282 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 213,363 shares of DexCom, Inc.. This represents a change in shares of 3.75% 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)
2026-05-12 2026-03-31 13F DEXCOM COM 252131107 221,358 7,995 3.75 13,901 -1.83 0.0340
2026-02-10 2025-12-31 13F DEXCOM COM 252131107 213,363 57,178 36.61 14,161 34.74 0.0342
2025-10-31 2025-09-30 13F DEXCOM COM 252131107 156,185 35,824 29.76 10,510 0.03 0.0304
2025-08-14 2025-06-30 13F DEXCOM COM 252131107 120,361 -5,806 -4.60 10,506 21.95 0.0325
2025-05-13 2025-03-31 13F DEXCOM COM 252131107 126,167 718 0.57 8,616 -11.70 0.0286
2025-01-31 2024-12-31 13F DEXCOM COM 252131107 125,449 1,558 1.26 9,756 17.47 0.0320
2024-11-06 2024-09-30 13F DEXCOM COM 252131107 123,891 7,642 6.57 8,306 -36.99 0.0269
2024-08-01 2024-06-30 13F DEXCOM COM 252131107 116,249 2,541 2.23 13,180 -16.43 0.0469
2024-05-09 2024-03-31 13F DEXCOM COM 252131107 113,708 5,972 5.54 15,771 17.98 0.0547
2024-02-13 2023-12-31 13F DEXCOM COM 252131107 107,736 -205 -0.19 13,369 32.75 0.0499
2023-10-30 2023-09-30 13F DEXCOM COM 252131107 107,941 10,844 11.17 10,071 -19.29 0.0418
2023-08-14 2023-06-30 13F DEXCOM COM 252131107 97,097 -537 -0.55 12,478 10.00 0.0478
2023-05-12 2023-03-31 13F DEXCOM COM 252131107 97,634 208 0.21 11,343 2.82 0.0450
2023-02-13 2022-12-31 13F DEXCOM COM 252131107 97,426 -1,133 -1.15 11,033 38.98 0.0463
2022-11-03 2022-09-30 13F DEXCOM COM 252131107 98,559 6,604 7.18 7,938 15.83 0.0348
2022-08-09 2022-06-30 13F DEXCOM COM 252131107 91,955 71,780 355.79 6,853 -33.61 0.0278
2022-05-06 2022-03-31 13F DEXCOM COM 252131107 20,175 586 2.99 10,322 -1.86 0.0362
2022-02-08 2021-12-31 13F DEXCOM COM 252131107 19,589 1,886 10.65 10,518 8.65 0.0385
2021-11-09 2021-09-30 13F DEXCOM COM 252131107 17,703 298 1.71 9,681 30.26 0.0390
2021-08-16 2021-06-30 13F DEXCOM COM 252131107 17,405 762 4.58 7,432 24.26 0.0300
2021-05-14 2021-03-31 13F DEXCOM COM 252131107 16,643 1,281 8.34 5,981 5.30 0.0254
2021-02-03 2020-12-31 13F DEXCOM COM 252131107 15,362 1,024 7.14 5,680 -3.91 0.0267
2020-11-05 2020-09-30 13F DEXCOM COM 252131107 14,338 792 5.85 5,911 7.63 0.0302
2020-07-28 2020-06-30 13F DEXCOM COM 252131107 13,546 10,222 307.52 5,492 513.63 0.0322
2020-04-30 2020-03-31 13F DEXCOM COM 252131107 3,324 -437 -11.62 895 8.75 0.0063
2020-02-14 2019-12-31 13F DEXCOM COM 252131107 3,761 139 3.84 823 52.13 0.0047
2019-10-30 2019-09-30 13F DEXCOM COM 252131107 3,622 -239 -6.19 541 -6.56 0.0032
2019-08-05 2019-06-30 13F DEXCOM COM 252131107 3,861 0 0.00 579 25.87 0.0035
2019-05-06 2019-03-31 13F DEXCOM COM 252131107 3,861 676 21.22 460 20.42 0.0029
2019-02-12 2018-12-31 13F DEXCOM COM 252131107 3,185 0 0.00 382 -16.23 0.0028
2018-11-02 2018-09-30 13F DEXCOM COM 252131107 3,185 0 0.00 456 50.50 0.0028
2018-08-09 2018-06-30 13F DEXCOM COM 252131107 3,185 213 7.17 303 37.73 0.0019
2018-04-30 2018-03-31 13F DEXCOM COM 252131107 2,972 2,972 -6.69 220 -27.39 0.0014
2017-07-27 2017-06-30 13F DEXCOM COM 252131107 0 -2,656 -100.00 0 -100.00
2017-05-12 2017-03-31 13F DEXCOM COM 252131107 2,656 2,656 225 0.0015
2017-02-08 2016-12-31 13F DEXCOM COM 252131107 0 -2,656 -100.00 0 -100.00
2016-10-19 2016-09-30 13F DEXCOM COM 252131107 2,656 0 0.00 233 10.43 0.0017
2016-08-02 2016-06-30 13F DEXCOM COM 252131107 2,656 2,656 0.00 211 -9.44 0.0016
2016-02-02 2015-12-31 13F DEXCOM COM 252131107 0 -2,393 -100.00 0 -100.00
2015-11-03 2015-09-30 13F DEXCOM COM 252131107 2,393 2,393 205 0.0016
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.