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Shares Outstanding for DexCom (DXCM)

According to DexCom's latest reported financial statements, the company's latest reported diluted shares outstanding is 398.90M. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.

Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .

DexCom, Inc. logo
DexCom

DXCM

Latest period

398.90M

YoY change

-1.7%

5Y CAGR

+0.8%

Peak year (2021)

428.80M

Latest annual

405.50M

Shares Outstanding history chart for DexCom (DXCM) from 2000 to 2025

Shares Outstanding history table for DexCom (DXCM) from 2000 to 2025

Fiscal yearPeriod endedReportedShares OutstandingYoY
2025405.50M-1.7%
2024412.70M-3.0%
2023425.50M-0.5%
2022427.50M-0.3%
2021428.80M+9.9%
2020390.00M+5.6%
2019369.20M+4.6%
2018352.80M+2.2%
2017345.20M+3.2%
2016334.40M+4.8%
2015319.20M+6.1%
2014300.80M+5.8%
2013284.40M+3.5%
2012274.80M+4.7%
2011262.40M+15.3%
2010227.60M+28.3%
2009177.39M+50.4%
2008117.95M+4.1%
2007113.25M+4.0%
2006108.94M+43.8%
200575.78M+728.7%
20049.14M+5.3%
20038.68M+6.0%
20028.18M+7.9%
20017.59M+9.8%
20006.91M

Shares Outstanding values are taken from DexCom's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.

Analysis

The 2025 reading of DexCom (DXCM) diluted shares outstanding is 405.50M – edged down 1.7% year-over-year.

Across 2020–2025 (5 years), DexCom diluted shares outstanding produced a CAGR of +0.8% – with the latest reading among the more recent periods of the dataset.

DexCom diluted shares outstanding declined from 428.80M in 2021 to 405.50M in 2025, a 5.4% drawdown.

2021 marks the peak diluted shares outstanding at 428.80M, with the historical low of 6.91M recorded in 2000.

Among 8 Healthcare peers, DexCom (DXCM) ranks 9th; the peer median for diluted shares outstanding is 1.34B.

DexCom Shares Outstanding by Year

DexCom Shares Outstanding 2025: 405.50M

DexCom diluted shares outstanding in 2025 was 405.50M, edged down 1.7% below 2024.

DexCom Shares Outstanding 2024: 412.70M

DexCom diluted shares outstanding in 2024 was 412.70M, edged down 3.0% below 2023.

DexCom Shares Outstanding 2023: 425.50M

DexCom diluted shares outstanding in 2023 was 425.50M, edged down 0.5% below 2022.

DexCom Shares Outstanding 2022: 427.50M

DexCom diluted shares outstanding in 2022 was 427.50M, edged down 0.3% below 2021.

DexCom Shares Outstanding 2021: 428.80M

DexCom diluted shares outstanding in 2021 was 428.80M.

See more financial history for DexCom (DXCM).

Sector peers — Shares Outstanding

Companies in the same sector as DexCom, ranked by their latest diluted shares outstanding.

CompanyShares OutstandingSector
Novo Nordisk A/S (NVO)4.45BHealthcare
Merck & Co., Inc. (MRK)2.51BHealthcare
Johnson & Johnson (JNJ)2.43BHealthcare
AbbVie Inc. (ABBV)1.77BHealthcare
UnitedHealth Group Incorporated (UNH)910.00MHealthcare
Eli Lilly and Company (LLY)898.00MHealthcare
AstraZeneca PLC (AZN)781.00MHealthcare
Amgen Inc. (AMGN)542.00MHealthcare

Frequently asked questions

What is DexCom's diluted shares outstanding?

Latest reported diluted shares outstanding for DexCom (DXCM) is 398.90M (period ending December 31, 2025).

How has DexCom diluted shares outstanding changed year-over-year?

DexCom (DXCM) diluted shares outstanding changed -1.7% year-over-year on the latest annual filing.

What is the long-term growth rate of DexCom diluted shares outstanding?

DexCom (DXCM) diluted shares outstanding compound annual growth rate is +0.8% over the most recent 5 years available.

When did DexCom diluted shares outstanding hit its highest annual value?

DexCom diluted shares outstanding reached its highest annual value of 428.80M in 2021.

What was DexCom diluted shares outstanding in 2024?

DexCom (DXCM) diluted shares outstanding in 2024 was 412.70M.

What was DexCom diluted shares outstanding in 2025?

DexCom (DXCM) diluted shares outstanding in 2025 was 405.50M.

Metrics overview

Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.