DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionPier Capital, LLC
Latest Disclosed Ownership5,968 shares
Latest Disclosed Value $ 374,790
Pier Capital, LLC reports 17,452.94% increase in ownership of DXCM / DexCom, Inc.

On May 14, 2026 - Pier Capital, LLC filed a 13F-HR form disclosing ownership of 5,968 shares of DexCom, Inc. (MX:DXCM) valued at $374,790 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 34 shares of DexCom, Inc.. This represents a change in shares of 17,452.94% 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)
2026-05-14 2026-03-31 13F Dexcom COM 252131107 5,968 5,934 17,452.94 375 18,600.00 0.0618
2026-02-03 2025-12-31 13F Dexcom COM 252131107 34 -68 -66.67 2 -66.67 0.0004
2025-11-13 2025-09-30 13F Dexcom COM 252131107 102 12 13.33 7 -14.29 0.0011
2025-08-05 2025-06-30 13F Dexcom COM 252131107 90 0 0.00 8 16.67 0.0012
2025-05-13 2025-03-31 13F Dexcom COM 252131107 90 0 0.00 6 0.00 0.0010
2025-02-11 2024-12-31 13F Dexcom COM 252131107 90 36 66.67 7 100.00 0.0010
2024-11-15 2024-09-30 13F Dexcom COM 252131107 54 0 0.00 4 -50.00 0.0005
2024-08-07 2024-06-30 13F Dexcom Common Stocks 252131107 54 -21 -28.00 6 -40.00 0.0009
2024-05-03 2024-03-31 13F Dexcom Common Stocks 252131107 75 -6,325 -98.83 10 -98.74 0.0014
2024-02-15 2023-12-31 13F Dexcom Common Stocks 252131107 6,400 1,728 36.99 794 82.53 0.1136
2023-11-14 2023-09-30 13F Dexcom Common Stocks 252131107 4,672 72 1.57 436 -26.40 0.0703
2023-08-14 2023-06-30 13F Dexcom Common Stocks 252131107 4,600 -698 -13.17 591 -3.90 0.0848
2023-05-10 2023-03-31 13F Dexcom COM 252131107 5,298 -926 -14.88 616 -12.64 0.0934
2023-02-15 2022-12-31 13F Dexcom COM 252131107 6,224 6,224 705 0.1154
2020-08-13 2020-06-30 13F Dexcom COM 252131107 0 -2,125 -100.00 0 -100.00
2020-05-15 2020-03-31 13F Dexcom COM 252131107 2,125 327 18.19 572 45.55 0.1266
2020-02-14 2019-12-31 13F Dexcom COM 252131107 1,798 89 5.21 393 54.12 0.0642
2019-11-13 2019-09-30 13F Dexcom COM 252131107 1,709 -31 -1.78 255 -2.30 0.0432
2019-08-14 2019-06-30 13F Dexcom COM 252131107 1,740 -52 -2.90 261 22.54 0.0403
2019-04-24 2019-03-31 13F Dexcom COM 252131107 1,792 -1,617 -47.43 213 -47.79 0.0330
2019-02-13 2018-12-31 13F Dexcom COM 252131107 3,409 3,409 90.23 408 91.55 0.0810
2017-11-13 2017-09-30 13F Dexcom COM 252131107 0 -6,720 -100.00 0 -100.00
2017-08-09 2017-06-30 13F Dexcom COM 252131107 6,720 3,429 104.19 492 76.34 0.0849
2017-05-10 2017-03-31 13F Dexcom COM 252131107 3,291 3,291 -51.03 279 -43.29 0.0477
2016-08-15 2016-06-30 13F Dexcom COM 252131107 0 -40,387 -100.00 0 -100.00
2016-05-05 2016-03-31 13F Dexcom COM 252131107 40,387 -25,855 -39.03 2,743 -49.44 0.5285
2016-02-12 2015-12-31 13F Dexcom COM 252131107 66,242 -169 -0.25 5,425 -4.86 0.9387
2015-11-10 2015-09-30 13F Dexcom COM 252131107 66,411 -38,416 -36.65 5,702 -31.99 0.9287
2015-08-12 2015-06-30 13F Dexcom COM 252131107 104,827 -5,940 -5.36 8,384 21.42 1.2080
2015-05-14 2015-03-31 13F Dexcom COM 252131107 110,767 -77,121 -41.05 6,905 -33.24 1.0400
2015-02-10 2014-12-31 13F Dexcom COM 252131107 187,888 -3,269 -1.71 10,343 35.31 1.5344
2014-11-14 2014-09-30 13F Dexcom COM 252131107 191,157 -4,485 -2.29 7,644 -1.48 1.2224
2014-08-12 2014-06-30 13F Dexcom COM 252131107 195,642 195,642 2.35 7,759 1.50 1.1005
2013-11-13 2013-09-30 13F Dexcom COM 252131107 0 -424,367 -100.00 0 -100.00
2013-08-12 2013-06-30 13F Dexcom COM 252131107 424,367 424,367 9,527 1.4543
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.