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STA
Summit Trail Advisors’s
Tandem Diabetes Care
TNDM
Stock Holding History
Summit Trail Advisors’s Portfolio
TNDM Stock Details
TNDM Fund Activity
Bought
Maintained
Sold
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2026
Q1
$724K
Buy
37,743
+3,214
+9%
+$69.8K
0.01%
1043
2025
Q4
$759K
Sell
34,529
-66,781
-66%
-$1.21M
0.01%
950
2025
Q3
$1.23M
Buy
101,310
+76,430
+307%
+$1.03M
0.02%
716
2025
Q2
$464K
Buy
+24,880
New
+$493K
0.01%
758
2024
Q4
–
Sell
-7,054
Closed
-$299K
–
729
2024
Q3
$299K
Buy
+7,054
New
+$299K
0.01%
548
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Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
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