DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionGotham Asset Management, LLC
ManagerJoel Greenblatt
Latest Disclosed Ownership108,044 shares
Latest Disclosed Value $ 6,785,163
Gotham Asset Management, LLC reports 31.36% increase in ownership of DXCM / DexCom, Inc.

On May 15, 2026 - Gotham Asset Management, LLC filed a 13F-HR form disclosing ownership of 108,044 shares of DexCom, Inc. (MX:DXCM) valued at $6,785,163 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 82,253 shares of DexCom, Inc.. This represents a change in shares of 31.36% 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)
2026-05-15 2026-03-31 13F DEXCOM COM 252131107 108,044 25,791 31.36 6,785 24.29 0.0208
2026-02-17 2025-12-31 13F DEXCOM COM 252131107 82,253 68,699 506.85 5,459 498.57 0.0199
2025-11-14 2025-09-30 13F DEXCOM COM 252131107 13,554 -69,798 -83.74 912 -87.46 0.0040
2025-08-14 2025-06-30 13F DEXCOM COM 252131107 83,352 -30,210 -26.60 7,276 -6.19 0.0435
2025-05-15 2025-03-31 13F DEXCOM COM 252131107 113,562 -1,120 -0.98 7,755 -13.04 0.0647
2025-02-14 2024-12-31 13F DEXCOM COM 252131107 114,682 35,883 45.54 8,919 68.84 0.0846
2024-11-14 2024-09-30 13F DEXCOM COM 252131107 78,799 30,919 64.58 5,283 -2.69 0.0546
2024-08-14 2024-06-30 13F DEXCOM COM 252131107 47,880 8,276 20.90 5,429 -1.18 0.0703
2024-05-15 2024-03-31 13F DEXCOM COM 252131107 39,604 -168 -0.42 5,493 11.31 0.0830
2024-02-14 2023-12-31 13F DEXCOM COM 252131107 39,772 -40,027 -50.16 4,935 -33.71 0.0916
2023-11-14 2023-09-30 13F DEXCOM COM 252131107 79,799 46,879 142.40 7,445 76.00 0.1538
2023-08-14 2023-06-30 13F DEXCOM COM 252131107 32,920 -12,090 -26.86 4,231 -19.10 0.0920
2023-05-15 2023-03-31 13F DEXCOM COM 252131107 45,010 -48,296 -51.76 5,229 -50.51 0.1268
2023-02-14 2022-12-31 13F DEXCOM COM 252131107 93,306 55,181 144.74 10,566 244.02 0.2973
2022-11-14 2022-09-30 13F DEXCOM COM 252131107 38,125 18,855 97.85 3,071 113.86 0.0920
2022-08-15 2022-06-30 13F DEXCOM COM 252131107 19,270 11,881 160.79 1,436 -62.01 0.0461
2022-05-16 2022-03-31 13F DEXCOM COM 252131107 7,389 2,701 57.62 3,780 50.18 0.1170
2022-02-14 2021-12-31 13F DEXCOM COM 252131107 4,688 3,976 558.43 2,517 547.04 0.0812
2021-11-15 2021-09-30 13F DEXCOM COM 252131107 712 712 389 0.0158
2021-05-17 2021-03-31 13F DEXCOM COM 252131107 0 -1,736 -100.00 0 -100.00
2021-02-16 2020-12-31 13F DEXCOM COM 252131107 1,736 -985 -36.20 642 -42.78 0.0212
2020-11-16 2020-09-30 13F DEXCOM COM 252131107 2,721 986 56.83 1,122 59.60 0.0360
2020-08-13 2020-06-30 13F DEXCOM COM 252131107 1,735 -25,077 -93.53 703 -90.26 0.0210
2020-05-15 2020-03-31 13F DEXCOM COM 252131107 26,812 22,700 552.04 7,220 703.11 0.2005
2020-02-14 2019-12-31 13F DEXCOM COM 252131107 4,112 4,112 -84.66 899 -87.55 0.0165
2018-08-14 2018-06-30 13F DEXCOM COM 252131107 0 -10,040 -100.00 0 -100.00
2018-05-15 2018-03-31 13F DEXCOM COM 252131107 10,040 10,040 745 0.0104
2015-05-15 2015-03-31 13F DEXCOM COM 252131107 0 -9,915 -100.00 0 -100.00
2015-02-17 2014-12-31 13F DEXCOM COM 252131107 9,915 9,915 546 0.0044
2014-11-14 2014-09-30 13F DEXCOM COM 252131107 0 -8,033 -100.00 0 -100.00
2014-08-14 2014-06-30 13F DEXCOM COM 252131107 8,033 8,033 319 0.0040
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.