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Joel Greenblatt's DexCom, Inc. (DXCM) position

Yes: as of Q1 2026, Joel Greenblatt holds 108K shares of DXCM worth $6.8M (0.0% of the disclosed portfolio). Last quarter the position was increased by 31.4%. First disclosed Q3 2021.
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Current value
$6.8M
Shares held
108K
% of portfolio
0.0%
Est. average buy price (i)
$69.21
Quarter-end price
$62.80

Estimated trade prices

Average price in quarters with purchases
$88.62
Average prices in quarters with sales
  • Q3 2025: $79.10 (70K shares sold)
  • Q2 2025: $78.38 (30K shares sold)
  • Q1 2025: $81.60 (1K shares sold)
  • Q1 2024: $125.70 (168 shares sold)
  • Q4 2023: $102.16 (40K shares sold)
  • Q2 2023: $120.95 (12K shares sold)
  • Q1 2023: $111.94 (48K shares sold)

DXCM price vs Greenblatt's position

1Y 3Y 5Y MAX
Dates
$50$100$150$20020222023202420252026New position of 712 shares · Q3 2021. Average closing price $126.11 · Price range $106.71–$143.18712sharespurchasedAdded 4K shares (558.4%) · Q4 2021. Average closing price $143.69 · Price range $129.87–$162.824KsharespurchasedAdded 3K shares (57.6%) · Q1 2022. Average closing price $109.39 · Price range $94.08–$130.203KsharespurchasedAdded 12K shares (160.8%) · Q2 2022. Average closing price $91.26 · Price range $67.99–$132.8912KsharespurchasedAdded 19K shares (97.8%) · Q3 2022. Average closing price $84.70 · Price range $76.35–$94.1819KsharespurchasedAdded 55K shares (144.7%) · Q4 2022. Average closing price $109.79 · Price range $84.98–$122.6755KsharespurchasedSold 48K shares (51.8%) · Q1 2023. Average closing price $111.94 · Price range $104.00–$122.9248KsharessoldSold 12K shares (26.9%) · Q2 2023. Average closing price $120.95 · Price range $112.47–$130.9812KsharessoldAdded 47K shares (142.4%) · Q3 2023. Average closing price $112.73 · Price range $86.06–$137.9347KsharespurchasedSold 40K shares (50.2%) · Q4 2023. Average closing price $102.16 · Price range $75.49–$124.1640KsharessoldSold 168 shares (0.4%) · Q1 2024. Average closing price $125.70 · Price range $114.22–$140.10168sharessoldAdded 8K shares (20.9%) · Q2 2024. Average closing price $126.43 · Price range $110.31–$140.458KsharespurchasedAdded 31K shares (64.6%) · Q3 2024. Average closing price $82.12 · Price range $64.00–$116.0631KsharespurchasedAdded 36K shares (45.5%) · Q4 2024. Average closing price $74.04 · Price range $65.68–$81.0136KsharespurchasedSold 1K shares (1.0%) · Q1 2025. Average closing price $81.60 · Price range $67.74–$90.751KsharessoldSold 30K shares (26.6%) · Q2 2025. Average closing price $78.38 · Price range $59.83–$87.5730KsharessoldSold 70K shares (83.7%) · Q3 2025. Average closing price $79.10 · Price range $66.46–$89.5370KsharessoldAdded 69K shares (506.9%) · Q4 2025. Average closing price $64.55 · Price range $54.84–$71.5069KsharespurchasedAdded 26K shares (31.4%) · Q1 2026. Average closing price $69.58 · Price range $61.90–$74.2826Ksharespurchased
Average closing price · filing quarter
$69.58
Price range · filing quarter
$61.90 – $74.28
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +26K +$1.8M +31.4% 108K May 15, 2026
Q4 2025 Added +69K +$4.4M +506.9% 82K Feb 17, 2026
Q3 2025 Reduced −70K −$5.5M −83.7% 14K Nov 14, 2025
Q2 2025 Reduced −30K −$2.4M −26.6% 83K Aug 14, 2025
Q1 2025 Reduced −1K −$91K −1.0% 114K May 15, 2025
Q4 2024 Added +36K +$2.7M +45.5% 115K Feb 14, 2025
Q3 2024 Added +31K +$2.5M +64.6% 79K Nov 14, 2024
Q2 2024 Added +8K +$1.0M +20.9% 48K Aug 14, 2024
Q1 2024 Reduced −168 −$21K −0.4% 40K May 15, 2024
Q4 2023 Reduced −40K −$4.1M −50.2% 40K Feb 14, 2024
Q3 2023 Added +47K +$5.3M +142.4% 80K Nov 14, 2023
Q2 2023 Reduced −12K −$1.5M −26.9% 33K Aug 14, 2023
Q1 2023 Reduced −48K −$5.4M −51.8% 45K May 15, 2023
Q4 2022 Added +55K +$6.1M +144.7% 93K Feb 14, 2023
Q3 2022 Added +19K +$1.6M +97.8% 38K Nov 14, 2022
Q2 2022 Added +12K +$1.1M +160.8% 19K Aug 15, 2022
Q1 2022 Added +3K +$295K +57.6% 7K May 16, 2022
Q4 2021 Added +4K +$571K +558.4% 5K Feb 14, 2022
Q3 2021 New +712 +$90K – 712 Nov 15, 2021
Data through Q1 2026 · filed May 15, 2026
19 grouped rows from 19 quarters

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Common questions

Does Joel Greenblatt own DXCM?

Yes. As of Q1 2026, Joel Greenblatt disclosed 108K shares of DXCM, worth $6.8M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy DXCM?

Joel Greenblatt first disclosed a DXCM position in Q3 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Joel Greenblatt sell DXCM?

The quarter-by-quarter table above shows each sale and reduction Joel Greenblatt disclosed in DXCM. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of DXCM does Joel Greenblatt own?

Joel Greenblatt disclosed 108K shares of DXCM as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Joel Greenblatt pay for DXCM?

Joel Greenblatt's estimated average buy price for DXCM is $69.21, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.