TANDEM DIABETES CARE (TNDM) stock: insider trades, news & valuation
Net sellingShare price and insider trades
TANDEM DIABETES CARE insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 1 sold $4K of TNDM stock on the open market.
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TNDM insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | — | 0 | — | 0 |
| Q1 2026 | — | 0 | $4K | 2 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 TANDEM DIABETES CARE INC insiders reported open-market purchases totaling $0, while 1 insider reported sales totaling $4K. 2 of 2 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Mar 18SEC | Mark David NovaraEvp & Chief Commercial Officer | Sell Plan | 18737,656 held (−0%) | $23.05 | $4K | -30.1% | — |
| Mar 9SEC | Mark David NovaraEvp & Chief Commercial Officer | Sell Plan | 235,969 held (−0%) | $22.81 | $46 | -29.4% | — |
Insiders at TANDEM DIABETES CARE INC
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Mark David NovaraEvp & Chief Commercial Officer | — | $4K | Mar 18, 2026 | — |
TNDM stock: common questions
Are TANDEM DIABETES CARE INC insiders buying TNDM stock?
In the past 12 months, 0 insiders reported open-market purchases of TNDM worth $0.
Are TANDEM DIABETES CARE INC insiders selling TNDM stock?
1 insiders reported sales worth $4K over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is TNDM's 52-week range?
Over the past year TNDM has traded between $12.82 and $28.26. It last closed at $16.11 on Oct 9, 2026.