Tandem Diabetes Care
TNDM
TNDM
269 hedge funds and large institutions have $1.51B invested in Tandem Diabetes Care in 2025 Q2 according to their latest regulatory filings, with 40 funds opening new positions, 117 increasing their positions, 69 reducing their positions, and 43 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more ownership
Funds ownership: →
more capital invested
Capital invested by funds: $ → $
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
7% less first-time investments, than exits
New positions opened: 40 | Existing positions closed: 43
2% less funds holding
Funds holding: 274 → 269 (-5)
Holders
269
Holding in Top 10
2
Calls
$54.4M
Puts
$4.81M
Top Buyers
| 1 | +$29M | |
| 2 | +$23.3M | |
| 3 | +$14.7M | |
| 4 |
Two Sigma Investments
New York
|
+$11.7M |
| 5 |
Walleye Capital
New York
|
+$11.2M |
Top Sellers
| 1 | -$21.5M | |
| 2 | -$18.1M | |
| 3 | -$15.6M | |
| 4 |
Balyasny Asset Management
Chicago,
Illinois
|
-$10.7M |
| 5 |
KCM
Kingdon Capital Management
New York
|
-$9.49M |