Institutional shares held 73.1 Million
3.25M calls
250K puts
Total value of holdings $3.78B
$168M calls
$12.9M puts
Market Cap $3.32B
64,221,200 Shares Out.
Institutional ownership 113.84%
# of Institutions 312


Latest Institutional Activity in TNDM

Top Purchases

Q1 2024
Marshall Wace, LLP Shares Held: 3.12M ($161M)
Q1 2024
Park West Asset Management LLC Shares Held: 1.4M ($72.3M)
Q1 2024
Driehaus Capital Management LLC Shares Held: 1.32M ($68.2M)
Q1 2024
Jennison Associates LLC Shares Held: 2.56M ($132M)
Q1 2024
Fred Alger Management, LLC Shares Held: 1.5M ($77.5M)

Top Sells

Q1 2024
Capital World Investors Shares Held: 3.67M ($190M)
Q1 2024
Point72 Asset Management, L.P. Shares Held: 35K ($1.81M)
Q1 2024
Voloridge Investment Management, LLC Shares Held: 522K ($27M)
Q1 2024
Janus Henderson Group PLC Shares Held: 2.2M ($114M)
Q1 2024
Paradice Investment Management LLC Shares Held: 822K ($42.5M)

About TNDM

Tandem Diabetes Care, Inc., a medical device company, designs, develops, and commercializes various products for people with insulin-dependent diabetes in the United States and internationally. The company's flagship product is the t:slim X2 insulin delivery system, a pump platform that comprises t:slim X2 pump, its 300-unit disposable insulin cartridge, and an infusion set. It also provides t:slim X2 insulin with Basal-IQ and control IQ technology; t:slim X2 with G5 Integration; and Tandem Device Updater, a tool that allows users to update their pump's software. In addition, the company offers t:connect, a web-based data management application, which provides a visual way to display diabetes therapy management data from the pump, continuous glucose monitoring, and supported blood glucose meters for users, their caregivers, and their healthcare providers; and Sugarmate, a mobile app for people with diabetes who use insulin. It has development and commercialization agreements with Dexcom, Inc. and Abbott Laboratories. The company was formerly known as Phluid Inc. and changed its name to Tandem Diabetes Care, Inc. in January 2008. Tandem Diabetes Care, Inc. was incorporated in 2006 and is headquartered in San Diego, California.


Insider Transactions at TNDM

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
173K Shares
From 30 Insiders
Exercise of conversion of derivative security 152K shares
Grant, award, or other acquisition 7.62K shares
Open market or private purchase 14.1K shares
Sell / Disposition
39.7K Shares
From 9 Insiders
Payment of exercise price or tax liability 39.7K shares

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