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Tandem Diabetes Care, Inc. Shares Outstanding 2012–2025

Tandem Diabetes Care, Inc. reported 68.3M of shares outstanding for fiscal 2025. That was 3.1% higher than fiscal 2024. Compared with fiscal 2020, the change was +9.6%. A rising share count can dilute per-share ownership; the filings should be checked for issuance and stock-compensation details.

Latest filed value
68.3M
One-year change
+3.1%
Change since 2020
+9.6%
Latest period end
2025-12-31
Tandem Diabetes Care, Inc. Shares Outstanding history from 2012 to 2025FY 2012: 0FY 2013: 2292600FY 2014: 2365500FY 2015: 3025500FY 2016: 3110000FY 2017: 10119000FY 2018: 57554000FY 2019: 59396000FY 2020: 62335000FY 2021: 63833000FY 2022: 64513000FY 2023: 65552000FY 2024: 66264000FY 2025: 68291000
Annual filed history. Hover chart points for raw values; the accessible table below is the source of record.
Fiscal yearShares OutstandingChange (YoY)
FY 202568.3M+3.1%
FY 202466.3M+1.1%
FY 202365.6M+1.6%
FY 202264.5M+1.1%
FY 202163.8M+2.4%
FY 202062.3M+4.9%
FY 201959.4M+3.2%
FY 201857.6M+468.8%
FY 201710.1M+225.4%
FY 20163.1M+2.8%
FY 20153.0M+27.9%
FY 20142.4M+3.2%
FY 20132.3M—
FY 20120.0M—

Source: Tandem Diabetes Care, Inc. SEC filings — balance sheet (10-K), split-adjusted. Computed deterministically; refreshed nightly (last updated August 2, 2026). Open TNDM 10-K filings at SEC EDGAR · Methodology · Download CSV.

How to read this history

Tandem Diabetes Care, Inc. reported 68.3M of shares outstanding for fiscal 2025. That was 3.1% higher than fiscal 2024. Compared with fiscal 2020, the change was +9.6%. A rising share count can dilute per-share ownership; the filings should be checked for issuance and stock-compensation details. Values remain missing when the cached filing does not disclose a comparable line item; they are never estimated. Stock splits, reorganizations and fiscal-calendar changes can reduce comparability.

Prepared and reviewed by the stockportfolio.pro research desk. Corrections: support@stockportfolio.pro.

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Tandem Diabetes Care, Inc. — frequently asked questions

What is Tandem Diabetes Care, Inc.'s shares outstanding?

Tandem Diabetes Care, Inc. (TNDM) reported shares outstanding of 68.3M for fiscal year 2025, per its SEC filings.

Where does this data come from?

Figures are computed from Tandem Diabetes Care, Inc.'s official SEC filings (balance sheet (10-K), split-adjusted), refreshed nightly. Not investment advice.

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