TNDM 8-K: SEC filing
Tandem Diabetes Care
Filed with the SEC on · accession 0001438133-26-000143
TNDM filed a 8-K (current report) with the SEC on Nov 5, 2026. Tandem Diabetes Care reported Q3 2026 financial results with worldwide sales of $283.7 million, up 14% year-over-year, gross margin of 57%, and a narrowed net loss of $7.1 million. The stock moved -5.6% by the first close after the filing.
Summary of the filing
Tandem Diabetes Care reported Q3 2026 financial results with worldwide sales of $283.7 million, up 14% year-over-year, gross margin of 57%, and a narrowed net loss of $7.1 million. The company reaffirmed its full-year 2026 sales guidance of approximately $1.065-$1.085 billion.
Key details
How TNDM stock reacted
Close before
$19.05
Nov 4, 2026
First close after
-5.56%
$17.99
5 trading days
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Since filing
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Click hereFrequently asked questions
What did TNDM file with the SEC on Nov 5, 2026?
TNDM filed a 8-K (SEC filing). Tandem Diabetes Care reported Q3 2026 financial results with worldwide sales of $283.7 million, up 14% year-over-year, gross margin of 57%, and a narrowed net loss of $7.1 million. The company reaffirmed its full-year 2026 sales guidance of approximately $1.065-$1.085 billion.
How do I read a 8-K?
A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.
How did TNDM stock react to this filing?
TNDM closed at $19.05 before the filing and $17.99 on Nov 5, 2026 (-5.56%).
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