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Tandem Diabetes Care
TNDM
TNDM
272 hedge funds and large institutions have $1.51B invested in Tandem Diabetes Care in 2026 Q1 according to their latest regulatory filings, with 45 funds opening new positions, 94 increasing their positions, 93 reducing their positions, and 35 closing their positions.
New
Increased
Maintained
Reduced
Closed
1,139% more call options, than puts
Call options by funds: $108M | Put options by funds: $8.7M
29% more first-time investments, than exits
New positions opened: 45 | Existing positions closed: 35
4.68% more ownership
Funds ownership: 110.44% → 115.12% (+4.7%)
1% more funds holding
Funds holding: 268 → 272 (+4)
1% more repeat investments, than reductions
Existing positions increased: 94 | Existing positions reduced: 93
8% less capital invested
Capital invested by funds: $1.65B → $1.51B (-$138M)
67% less funds holding in top 10
Funds holding in top 10: 3 → 1 (-2)
Holders
272
Holders Change
+4
Holders Change %
+1.49%
% of All Funds
3.35%
Holding in Top 10
1
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-66.67%
% of All Funds
0.01%
New
45
Increased
94
Reduced
93
Closed
35
Calls
$108M
Puts
$8.7M
Net Calls
+$99.1M
Net Calls Change
+$41.9M
Top Buyers
Top Sellers
| 1 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$22.8M |
| 2 |
BNP Paribas Financial Markets
Paris,
France
|
-$22.6M |
| 3 |
Morgan Stanley
New York
|
-$15.7M |
| 4 |
Barclays
London,
United Kingdom
|
-$10.8M |
| 5 |
BlackRock
New York
|
-$9.96M |
