$TNDM
Tandem Diabetes Care, Inc.
XNAS
Why is TNDM down today? It is at $19.59 (-3.02%), and our scanner flagged it 66 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment TNDM spikes, and full due diligence on TNDM — key stats, earnings, dilution and insider activity. Free.
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Our scanner flagged $TNDM 66 times in the last 30 days. Create a free account to track $TNDM, build a watchlist, and get instant unusual-volume alerts — plus 5 free premium days, no card needed.
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Key Stats
- Price
- $19.59
- Change today
- -3.02%
- Previous close
- $20.20
- 52-week range
- $9.98 – $29.65
- Market cap
- $1.34B
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 13.1M ▲ +3% vs prior · as of 2026-07-15
- Days to cover
- 8.7d
- Avg daily volume
- 2.1M
- Exchange
- XNAS
- 5m
- 1.0x
- 15m
- 1.1x
- 1h
- 1.1x
- 1D
- 0.9x
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Why is $TNDM down today?
Here is the latest on TNDM from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for TNDM today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Likely catalystExecutive / Board Change · Shareholder Rights Change, from the latest SEC filing. Read it →Analyst data via Nasdaq. Not investment advice.
Insiders
8 buys, 10 sells last 3 months (15/42 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Kyrillos Jean-Claude Officer | Sold (automatic/other) | -2K | sold 6.1% | 30K | $29K at $15.28 | Jul 15, 26 |
Kyrillos Jean-Claude Officer | Other | 4K | added 13% | 32K | n/a | Jul 15, 26 |
Gasser Elizabeth Anne Officer | Sold (automatic/other) | -7K 0.01% of company | n/a | n/a | n/a | Jun 2, 26 |
Gasser Elizabeth Anne Officer | Acquired (grant/award) | +7K 0.01% of company | added 28% | 33K | n/a | Jun 2, 26 |
Cha Myoungil Director | Other | 9K 0.01% of company | added 64% | 22K | n/a | May 21, 26 |
Twomey Christopher J Director | Other | 9K 0.01% of company | added 56% | 24K | n/a | May 21, 26 |
Robertson Rebecca B Director | Other | 9K 0.01% of company | added 64% | 23K | n/a | May 21, 26 |
Mcgroddy-Goetz Kathleen Director | Other | 9K 0.01% of company | added 49% | 27K | n/a | May 21, 26 |
Sodhi Rajwant Director | Other | 9K 0.01% of company | added 56% | 24K | n/a | May 21, 26 |
Malagueira Joao Paulo Falcao Director | Other | 9K 0.01% of company | added 64% | 22K | n/a | May 21, 26 |
Howell Peyton R Director | Other | 9K 0.01% of company | added 42% | 30K | n/a | May 21, 26 |
Allen Dick Other | Other | 9K 0.01% of company | added 45% | 28K | n/a | May 21, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
$TNDM Sentiment
NeutralBlend of news sentiment, today’s move, and community votes. Not investment advice.
$TNDM Activity
News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.
TNDM stock FAQ
Why is $TNDM down today?
Here is the latest on TNDM from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for TNDM today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
What is the TNDM stock price today?
TNDM last traded at $19.59, down 3.02% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live TNDM alerts?
The TNDM Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged TNDM 66 times in the last 30 days.
What exchange is TNDM on?
TNDM (Tandem Diabetes Care, Inc.) trades on XNAS, with a market cap of about $1.34B.
Is TNDM good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge TNDM for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.