DexCom, Inc.
MX ˙ BMV ˙ US2521311074
SecurityMX:DXCM / DexCom, Inc.
InstitutionJacobs Levy Equity Management, Inc
Latest Disclosed Ownership4,466 shares
Latest Disclosed Value $ 280,465
Jacobs Levy Equity Management, Inc reports 61.37% decrease in ownership of DXCM / DexCom, Inc.

On May 15, 2026 - Jacobs Levy Equity Management, Inc filed a 13F-HR form disclosing ownership of 4,466 shares of DexCom, Inc. (MX:DXCM) valued at $280,465 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 11,562 shares of DexCom, Inc.. This represents a change in shares of -61.37% 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.

Upgrade to unlock premium data and export to Excel .

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 4,466 -7,096 -61.37 280 -63.49 0.0012
2026-02-13 2025-12-31 13F DEXCOM COM 252131107 11,562 -665 -5.44 767 -6.69 0.0030
2025-11-17 2025-09-30 13F DEXCOM COM 252131107 12,227 -1,360,740 -99.11 823 -99.31 0.0033
2025-08-14 2025-06-30 13F DEXCOM COM 252131107 1,372,967 1,031,107 301.62 119,846 413.37 0.4699
2025-05-15 2025-03-31 13F DEXCOM COM 252131107 341,860 264,459 341.67 23,346 287.86 0.0926
2025-02-14 2024-12-31 13F DEXCOM COM 252131107 77,401 42,792 123.64 6,019 159.44 0.0213
2024-11-14 2024-09-30 13F DEXCOM COM 252131107 34,609 30,058 660.47 2,320 350.49 0.0089
2024-08-14 2024-06-30 13F DEXCOM COM 252131107 4,551 0 0.00 516 -18.38 0.0021
2024-05-15 2024-03-31 13F DEXCOM COM 252131107 4,551 0 0.00 631 11.88 0.0028
2024-02-14 2023-12-31 13F DEXCOM COM 252131107 4,551 -2,984 -39.60 565 -19.77 0.0028
2023-11-17 2023-09-30 13F DEXCOM COM 252131107 7,535 -15,320 -67.03 703 -76.06 0.0042
2023-08-14 2023-06-30 13F DEXCOM COM 252131107 22,855 -52,744 -69.77 2,937 -66.56 0.0169
2023-05-15 2023-03-31 13F DEXCOM COM 252131107 75,599 2,001 2.72 8,783 5.39 0.0538
2023-02-14 2022-12-31 13F DEXCOM COM 252131107 73,598 -8,868 -10.75 8,334 25.47 0.0564
2022-11-15 2022-09-30 13F DEXCOM COM 252131107 82,466 -58,238 -41.39 6,642 -36.66 0.0525
2022-08-15 2022-06-30 13F DEXCOM COM 252131107 140,704 136,336 3,121.25 10,487 369.22 0.0812
2022-05-16 2022-03-31 13F DEXCOM COM 252131107 4,368 -16,537 -79.11 2,235 -80.09 0.0150
2022-02-14 2021-12-31 13F DEXCOM COM 252131107 20,905 20,905 11,225 0.0752
2021-08-16 2021-06-30 13F DEXCOM COM 252131107 0 -63,299 -100.00 0 -100.00
2021-05-17 2021-03-31 13F DEXCOM COM 252131107 63,299 5,865 10.21 22,749 7.13 0.1755
2021-02-16 2020-12-31 13F DEXCOM COM 252131107 57,434 57,434 -9.27 21,234 -6.66 0.1862
2020-11-16 2020-09-30 13F DEXCOM COM 252131107 0 -11,920 -100.00 0 -100.00
2020-08-17 2020-06-30 13F DEXCOM COM 252131107 11,920 1,060 9.76 4,832 65.25 0.0523
2020-05-15 2020-03-31 13F DEXCOM COM 252131107 10,860 10,860 -8.89 2,924 -39.49 0.0376
2020-02-14 2019-12-31 13F DEXCOM COM 252131107 0 -14,338 -100.00 0 -100.00
2019-11-14 2019-09-30 13F DEXCOM COM 252131107 14,338 14,338 2,140 0.0263
2019-02-14 2018-12-31 13F DEXCOM COM 252131107 0 -11,080 -100.00 0 -100.00
2018-11-14 2018-09-30 13F DEXCOM COM 252131107 11,080 -1,440 -11.50 1,585 33.31 0.0225
2018-08-14 2018-06-30 13F DEXCOM COM 252131107 12,520 12,520 13.00 1,189 -24.98 0.0187
2017-11-09 2017-06-30 13F/A-1 DEXCOM COM 252131107 0 -93,040 -100.00 0 -100.00
2017-05-12 2017-03-31 13F DEXCOM COM 252131107 93,040 -69,680 -42.82 7,883 -18.85 0.1594
2017-02-14 2016-12-31 13F DEXCOM COM 252131107 162,720 162,720 74.89 9,714 23.23 0.1876
2016-08-15 2016-06-30 13F DEXCOM COM 252131107 0 -5,550 -100.00 0 -100.00
2016-05-16 2016-03-31 13F DEXCOM COM 252131107 5,550 -1,400 -20.14 377 -33.74 0.0080
2016-02-16 2015-12-31 13F DEXCOM COM 252131107 6,950 0 0.00 569 -4.69 0.0113
2015-11-16 2015-09-30 13F DEXCOM COM 252131107 6,950 -24,470 -77.88 597 -76.24 0.0122
2015-08-14 2015-06-30 13F DEXCOM COM 252131107 31,420 -44,677 -58.71 2,513 -47.03 0.0478
2015-05-15 2015-03-31 13F DEXCOM COM 252131107 76,097 10,270 15.60 4,744 30.91 0.0807
2015-02-17 2014-12-31 13F DEXCOM COM 252131107 65,827 -8,700 -11.67 3,624 21.61 0.0621
2014-11-14 2014-09-30 13F DEXCOM COM 252131107 74,527 -10,350 -12.19 2,980 -11.47 0.0498
2014-08-14 2014-06-30 13F DEXCOM COM 252131107 84,877 -101,148 -54.37 3,366 -56.25 0.0557
2014-05-15 2014-03-31 13F DEXCOM COM 252131107 186,025 127,641 218.62 7,694 272.23 0.1289
2014-02-14 2013-12-31 13F DEXCOM COM 252131107 58,384 58,384 2,067 0.0311
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.