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Unusual Option Volume

TNDM Tandem Diabetes Care24.20+0.46 (+1.9%)

Tandem Diabetes Care trades 3,621 contracts. The company has the following event: TD Cowen 46th Annual Health Care Conference on Mar 4, 2026.
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TNDM stock declines -5.9% in after hours trading. See the latest news.

After Hours Decliner

TNDM Tandem Diabetes Care28.26+3.69+15.0%

After Hours:26.60-1.66 (-5.9%)

Tandem Diabetes Care Announces Proposed Private Placement of Convertible Notes

Business WireMon, 23-Feb 4:05 PM
TNDM stock declines -5.2% in after hours trading. See the latest news.

After Hours Decliner

TNDM Tandem Diabetes Care28.26+3.69+15.0%

After Hours:26.78-1.48 (-5.2%)

Tandem Diabetes Care Announces Proposed Private Placement of Convertible Notes

Business WireMon, 23-Feb 4:05 PM
Unusual Option Volume

TNDM Tandem Diabetes Care25.15+6.63 (+35.8%)

Tandem Diabetes Care trades 2,387 contracts. The company has the following event: Citi's 2026 Unplugged MedTech and Life Sciences Access Day on Feb 26, 2026. News: Tandem Diabetes Care Announces Fourth Quarter and Full Year 2025 Financial Results and 2026 Financial Guidance
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Upcoming Earnings

TNDM Tandem Diabetes Care18.90-0.04 (-0.2%)

Tandem Diabetes Care will report earnings after the market closes. View Calendar The market is expecting a ±14.1% move after earnings are reported. The average move for the past 4 quarters of earnings has been ±23.9%. View Expected Move (Conf Call: Feb 19 4:30 PM)
TNDM stock increases 17.2% after hours.

After Hours Gainer

TNDM Tandem Diabetes Care13.33-1.34-9.1%

After Hours:15.62+2.29 (+17.2%)

Rosen Law Firm Encourages Tandem Diabetes Care, Inc. Investors to Inquire About Securities Class Action Investigation - TNDM

PRNewswireThu, 6-Nov 4:20 PM
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