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Tandem Diabetes Care, Inc.

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Tandem Diabetes Care, Inc.

TNDM·NASDAQ·Industrial Applications And Services·CIK 0001438133

Tandem Diabetes Care, Inc., along with its wholly-owned subsidiaries, is a global leader in insulin delivery and diabetes technology. The company specializes in designing, developing, and selling advanced solutions to ease the burden of diabetes management. Tandem serves nearly 500,000 people living with diabetes in more than 25 countries worldwide. Its strategy focuses on providing flexible and diverse intelligent insulin delivery systems through a portfolio of market-leading pumps, applications, and insights. Key pump platforms include t:slim X2 and Tandem Mobi (Mobi), both equipped with Control-IQ+ advanced hybrid closed-loop technology. Diabetes is a chronic, life-threatening disease with no known cure, typically classified as type 1 or type 2. Type 1 diabetes involves the body's near-complete inability to produce insulin, often diagnosed in childhood or adolescence, requiring intensive insulin therapy for survival. Type 2 diabetes involves the body's inability to properly use or produce enough insulin, a progressive condition where advanced stages often require intensive insulin therapy. The Center for Disease Control and Prevention estimates Type 2 accounts for 90-95% of diagnosed adult diabetes in the United States. Tandem's addressable market includes people with type 1 diabetes and, as of 2025, expanded to include people with type 2 diabetes who require intensive insulin therapy, referred to as people with insulin-dependent diabetes. In the geographies served, an estimated 5 million people live with type 1 diabetes, with approximately 2 million in the United States. Additionally, an estimated 2.5 million people in the United States live with type 2 diabetes and require intensive insulin therapy.

Tandem Diabetes Care, Inc. (NASDAQ:TNDM) is a publicly traded company in the Industrial Applications And Services sector. Wiseek has independently scored 12 items for TNDM at importance 7 or higher on its 1–10 market-impact scale. Its most recent item scored 7 or higher is dated 2026-08-06, rated 7/10. Across its 12 most recent items scored 7 or higher, the top rating is 8/10, with 6 rated 8 or above. Recent SEC coverage for TNDM spans 10-Q, 8-K, PRE 14A, 10-K.

Recent high-impact activity:

  • Tandem Diabetes Care Narrows Losses on 6% Sales Growth, Gross Margin Hits 57%
  • Tandem Diabetes Care Reports Q2 2026 Sales of $254.6M, Gross Margin Improves to 57%, Reaffirms Full-Year Guidance
  • Stockholders Approve 3.26M Share Increase for Incentive Plan and Charter Amendments
  • Tandem Diabetes Care Terminates Chief Commercial Officer Mark Novara
  • Tandem Diabetes Care Reports Strong Q1 2026 Results with Reduced Losses and Positive Operating Cash Flow

Financial Snapshot

Fiscal year ended December 31, 2025
Revenue
$1.01B
Net Income
-$204.71M
Diluted EPS
-$3.04
Op. Cash Flow
-$9.72M
Free Cash Flow
-$29.67M
Gross Profit
$546.01M
Operating Income
-$187.26M
Cash & Equivalents
$90.63M
Total Debt
$310.04M
Debt / Equity
2.00×
Net Margin
-20.2%
Shares Outstanding
68.29M sh
Source: 10-K · filed 2026-02-19 · accession 0001438133-26-000010

Short Interest & Short Volume

7.89 days to cover

FINRA reported short interest of 12,474,385 shares in TNDM as of the September 15, 2026 settlement, a 6.1% increase from the prior period — about 7.9 days to cover at its recent average daily volume. On October 2, 2026, 65.3% of TNDM volume reported to FINRA trade-reporting facilities was marked short.

Short interest (bi-monthly positions)12,474,385 shares as of September 15, 2026
Change vs prior period▲ 6.1%
Days to cover7.89 at avg daily volume of 1,580,812
Daily short volume (FINRA facilities)65.3% of 935,407 shares on October 2, 2026
5-day average short volume62.2%

Daily short sale volume covers trades reported to FINRA trade-reporting facilities and is not the same as short interest (bi-monthly reported positions). Source: FINRA — FINRA is the owner and source of this short interest and short sale volume data; it may not be redistributed.

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$16.6 +0.10% today
52-week range · as of 2026-08-06 $9.98 – $29.65
Market cap
$1.15B
Volume
2.2M (1.1× avg)
3-mo avg 1.9M
Live data · 2026-10-04 12:24 UTC · Market closed

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feed TNDM - Latest Insights

TNDM
Aug 06, 2026, 4:11 PM EDT
Filing Type: 10-Q
Importance Score:
7
Price at Filing: $17.50
Real-time Price: $16.60 info
Change: -$0.900 (-5%) info
Market Cap: $1.148B info
TNDM
Aug 06, 2026, 4:08 PM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $17.86
Real-time Price: $16.60 info
Change: -$1.26 (-7%) info
Market Cap: $1.148B info
TNDM
May 21, 2026, 4:10 PM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $15.76
Real-time Price: $16.60 info
Change: +$0.840 (+5%) info
Market Cap: $1.148B info
TNDM
May 15, 2026, 7:59 AM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $14.03
Real-time Price: $16.60 info
Change: +$2.57 (+18%) info
Market Cap: $1.148B info
TNDM
May 07, 2026, 4:06 PM EDT
Filing Type: 10-Q
Importance Score:
8
Price at Filing: $20.86
Real-time Price: $16.60 info
Change: -$4.26 (-20%) info
Market Cap: $1.148B info
TNDM
May 07, 2026, 4:02 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $20.04
Real-time Price: $16.60 info
Change: -$3.44 (-17%) info
Market Cap: $1.148B info
TNDM
Apr 27, 2026, 9:21 AM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $20.75
Real-time Price: $16.60 info
Change: -$4.15 (-20%) info
Market Cap: $1.148B info
TNDM
Mar 27, 2026, 4:07 PM EDT
Filing Type: PRE 14A
Importance Score:
7
Price at Filing: $21.00
Real-time Price: $16.60 info
Change: -$4.40 (-21%) info
Market Cap: $1.148B info
TNDM
Feb 27, 2026, 4:13 PM EST
Source: Unknown
Importance Score:
8
Price at Filing: $25.30
Real-time Price: $16.60 info
Change: -$8.70 (-34%) info
Market Cap: $1.148B info
TNDM
Feb 27, 2026, 4:06 PM EST
Filing Type: 8-K
Importance Score:
8
Price at Filing: $25.30
Real-time Price: $16.60 info
Change: -$8.70 (-34%) info
Market Cap: $1.148B info
TNDM
Feb 19, 2026, 4:09 PM EST
Filing Type: 10-K
Importance Score:
8
Price at Filing: $20.01
Real-time Price: $16.60 info
Change: -$3.41 (-17%) info
Market Cap: $1.148B info
TNDM
Feb 19, 2026, 4:06 PM EST
Filing Type: 8-K
Importance Score:
7
Price at Filing: $18.52
Real-time Price: $16.60 info
Change: -$1.92 (-10%) info
Market Cap: $1.148B info
Research tools: Filing Impact Index Dilution Tracker Split Calendar Open Datasets