TANDEM DIABETES CARE, INC.

TNDM US8753722037

🆔
Registration No.
4485160
💰
Capitalization
Small-cap

Tandem Diabetes designs, manufactures, and markets durable insulin pumps for diabetes patients. The firm first entered this market in 2012 and has since introduced multiple generations of pumps leading to its current t:slim X2 device. The firm recently launched its smaller Mobi pump and continues to work on a tubeless pump. Nearly three-quarters of total revenue is derived from the us, with the remainder primarily from other developed nations. The pumps themselves generate just over half of total sales, and another one third is from disposable infusion sets that need to be changed over every 2 to 3 days.

🏢
Founded
2008
Annual Performance 1
2021 2022 2023 2024 2025
61% -70% -34% 27% 3%
Annual Insiders Turnover, USD 2

1 annual and historical performance metrics are recalculated on a daily basis;
2 represents the total value of insider transactions (both buying and selling);

Insider Activity
📊
Transactions
10
🙍
Insiders
7
Person Price Shares Total Published Completed
Sheridan John F
CEO
10.23
USD
10,000
Bought
102,318
USD
11/08/2025 11/08/2025
Vosseller Leigh
EX VP
10.89
USD
13,720
Bought
149,404
USD
08/08/2025 08/08/2025
Kyrillos Jean-claude
EX VP
18.12
USD
10,538
Bought
190,966
USD
07/03/2025 07/03/2025
Blickenstaff Kim D
O
31.38
USD
30,000
Sold
941,400
USD
20/11/2024 21/11/2024
Blickenstaff Kim D
O
30.00
USD
10,000
Sold
300,000
USD
20/11/2024 20/11/2024
Novara Mark David
EX VP
23.24
USD
532
Bought
12,364
USD
15/11/2024 15/11/2024
Allen Dick
51.68
USD
5,000
Sold
258,400
USD
30/05/2024 30/05/2024
Allen Dick
18.96
USD
5,000
Bought
94,778
USD
27/11/2023 27/11/2023
Hansen Shannon Marie
CLO
15.44
USD
1,935
Bought
29,884
USD
08/11/2023 08/11/2023
Vosseller Leigh
EX VP
15.39
USD
6,200
Bought
95,395
USD
08/11/2023 08/11/2023
Integrated EOD Stock Data and Insider Transactions Chart

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The visibility of insider buy and sell transactions on this chart should not be the sole factor in your decision to buy or sell a particular stock. Always consider the following dynamic reports for a broader understanding of stock market activities:

 

Historical Performance
1M 3M 6M 1Y 3Y 5Y All Time
15% 1% 13% 42% -65% 0% 595%
Last 52W Low 52W High All-Time Low All-Time High β
14.52 10.12 37.61 2.24 153.21
Company Insiders
Person / Entity Transactions Turnover, USD Average, USD First Last
Blickenstaff Kim D 2 1,241,400.00 620,700.00 20/11/2024 21/11/2024
Allen Dick 2 353,177.50 176,588.75 27/11/2023 30/05/2024
Vosseller Leigh 2 244,799.00 122,399.50 08/11/2023 08/08/2025
Kyrillos Jean-claude 1 190,966.47 190,966.47 07/03/2025 07/03/2025
Sheridan John F 1 102,318.00 102,318.00 11/08/2025 11/08/2025
Hansen Shannon Marie 1 29,884.33 29,884.33 08/11/2023 08/11/2023
Novara Mark David 1 12,363.68 12,363.68 15/11/2024 15/11/2024

Insiders marked in yellow represent long-term insiders. These are individuals who have engaged in transactions for over 3 years and have conducted at least 10 transactions or reached a cumulative turnover of $1M USD. When examining transaction clusters, we prioritize those conducted by long-term insiders for analysis.

Connected Companies 3
Name ISIN Ticker
Nuvation Bio Inc. US67080N1019 NUVB

3 the firms where the current insiders have executed transactions.

Stock Advanced Metrics
Delta Correlation subscribe 🔒
Upper Bound of Standardized Transaction Amount (ubsta), USD 4 subscribe 🔒

4 represents the maximum expected transaction amount for a company's insiders, calculated based on historical data. It provides insight into the typical range of insider transaction amounts and helps in identifying unusually large transactions.

5 a proprietary metric reflecting the consistency of insider trading behavior within a company. A higher discipline index suggests more regular and predictable insider transactions.