TNDM

Vosseller Leigh

Known title: EVP & CHIEF FINANCIAL OFFICERCIK: 0001726322

Vosseller Leigh's purchase track record

How the stock did after each of Vosseller Leigh's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.

Purchases measured
4
of 4 since May 6, 2022
Stock higher 6 months later
50%
3 months: 50%
Median 6-month return
+8.8%
3 months: +15.5%
Beat the S&P 500
50%
median +8.9% vs. index
PurchaseStockAmount3 months6 months
8/8/2025TNDM$149K+44.8%+70.7%
11/8/2023TNDM$95K+50.5%+171.6%
5/12/2023TNDM$99K-13.7%-56.7%
5/6/2022TNDM$187K-21.7%-53.0%

Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.

Associated companies

AI Market Commentary

AI-generatedAll commentary →

Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.

October 14, 2026

Barclays initiates coverage on Tandem Diabetes Care with Equal-Weight rating. Barclays has started covering Tandem Diabetes Care, assigning it an Equal-Weight rating and a price target of $18. This new analyst view comes as the company prepares to discuss its Q2 2026 earnings. The $18 target is at the lower end of the current analyst consensus range, which averages $27.86.

this person other insiders at TNDM

Transaction History

TNDM▲ Buy$0
TNDM▼ Sell$12K
TNDM▼ Sell$21K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$7K
TNDM▲ Buy$0
TNDM▼ Sell$7K
TNDM▲ Buy$0
TNDM▼ Sell$48K
TNDM▲ Buy$15K
TNDM▲ Buy$0
TNDM▼ Sell$12K
TNDM▲ Buy$0
TNDM▼ Sell$12K
TNDM▲ Buy$0
TNDM▼ Sell$10K
TNDM▲ Buy$0
TNDM▼ Sell$10K
TNDM▲ Buy$0
TNDM▼ Sell$6K
TNDM▼ Sell$6K
TNDM▲ Buy$0
TNDM▲ Buy$149K
TNDM▼ Sell$1K
TNDM▲ Buy$0
TNDM▼ Sell$4K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$49K
TNDM▼ Sell$12K
TNDM▲ Buy$21K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$68K
TNDM▲ Buy$0
TNDM▼ Sell$16K
TNDM▼ Sell$2K
TNDM▲ Buy$0
TNDM▼ Sell$7K
TNDM▲ Buy$0
TNDM▼ Sell$21K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$2K
TNDM▼ Sell$15K
TNDM▼ Sell$5K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$3K
TNDM▼ Sell$7K
TNDM▲ Buy$0
TNDM▼ Sell$24K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$8K
TNDM▼ Sell$8K
TNDM▲ Buy$0
TNDM▼ Sell$102K
TNDM▼ Sell$3K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▲ Buy$21K
TNDM▼ Sell$4K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$2K
TNDM▲ Buy$0
TNDM▼ Sell$5K
TNDM▲ Buy$0
TNDM▼ Sell$3K
TNDM▲ Buy$15
TNDM▲ Buy$0
TNDM▼ Sell$1K
TNDM▲ Buy$0
TNDM▼ Sell$3K
TNDM▲ Buy$95K
TNDM▲ Buy$0
TNDM▼ Sell$4K
TNDM▼ Sell$2K
TNDM▲ Buy$0
TNDM▼ Sell$5K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$4K
TNDM▲ Buy$0
TNDM▼ Sell$2K
TNDM▲ Buy$0
TNDM▼ Sell$21K
TNDM▲ Buy$17K
TNDM▲ Buy$99K
TNDM▼ Sell$6K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$3K
TNDM▲ Buy$0
TNDM▼ Sell$6K
TNDM▼ Sell$2K
TNDM▲ Buy$0
TNDM▲ Buy$0
TNDM▼ Sell$7K
TNDM▲ Buy$0
TNDM▼ Sell$3K
TNDM▲ Buy$0
TNDM▼ Sell$10K
TNDM▼ Sell$17K
TNDM▲ Buy$0
TNDM▲ Buy$19K
TNDM▲ Buy$35K
TNDM▲ Buy$75K
TNDM▲ Buy$77K
TNDM▲ Buy$0
TNDM▼ Sell$16K
TNDM▼ Sell$26K
TNDM▲ Buy$0
TNDM▲ Buy$189K
TNDM▼ Sell$1.4M
TNDM▲ Buy$189K
TNDM▼ Sell$1.4M
TNDM▲ Buy$189K
TNDM▼ Sell$1.3M
TNDM▼ Sell$813K
TNDM▲ Buy$123K
TNDM▲ Buy$66K
TNDM▼ Sell$438K
TNDM▲ Buy$189K
TNDM▼ Sell$805K
TNDM▼ Sell$158K
TNDM▼ Sell$245K
TNDM▲ Buy$0
TNDM▼ Sell$16K

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