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Leigh Vosseller

EVP & CHIEF FINANCIAL OFFICER · Tandem Diabetes Care

Leigh Vosseller (EVP & CHIEF FINANCIAL OFFICER) filed 1 Form 4 report in the past 24 months (1 purchase, 0 sales), most often in Tandem Diabetes Care, Inc. (TNDM). Across 1 priced purchase filing, the average 21-session return was +7.3% from execution and +13.1% from disclosure (delay-adjusted; derived). The largest single filing was $149K of TNDM (13,720 sh × $10.89, as filed), executed Aug 8 2025. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months
+7.3%
avg across 1 priced filings
Delay-adjustediThe same average, entered at disclosure dates
+13.1%
same 1 filings, from disclosure
Filings, ttm
1
1 buys · 0 sells
Median delay
3d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$149K
shares × price, as filed
Last traded
Aug 8 2025
Filed Aug 11 2025

Median ADV $33.4M across their filed names

Open performance→
Volume by month
$149K$75K$0Dec 2024Jun 2025Dec 2025Jun 2026Aug 2025 · buys $149K
Buys $149K Sells $0

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 1 filing

Sector per market data · by filing · past 24 months

Most traded names
TNDM Tandem Diabetes Care, Inc. TNDM · 1 buy · 0 sells 1 filing
Recent filings
TNDMPURCHASE Tandem Diabetes Care, Inc. View filing → $149K
13,720 sh × $10.89
Exec Aug 8 2025
Filed Aug 11 2025 · 5:18 PM ET